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Article in Chinese | WPRIM | ID: wpr-935818


Objective: To investigate the occupational hazard factors and exposure levels of workers during the construction of power transmission and transformation projects. Methods: Analysis and identification of occupational hazard factors were carried out for typical construction process of 6 power transmission projects and 3 substation projects in September 2018. The on-site occupational health investigation was carried out to detect and analyze the exposure levels of workers to occupational hazard factors. Results: The time weighted average concentration (C(TWA)) of crushing workers exposed to silica dust and welders exposed to welding fume in substation projects were 2.72 and 14.03 mg/m(3), respectively. The 8 h equivalent sound level results of exposure noise of carpenters in power transmission projects and crushing workers, reinforcement workers, carpenters, scaffolders, road builders in substation projects were 87.9, 92.5, 87.1, 92.5, 93.0 and 90.2 dB (A) , respectively. The 4-hour time equal energy frequency weighted vibration acceleration of hand-transmitted vibration of bricklayer in power transmission projects, bricklayer, general worker 3, road builder 1 and road builder 2 of substation projects were 5.36, 5.21, 5.28, 10.71 and 5.22 m/s(2), respectively. The effective irradiance of electric welding arc light of welders' limbs in power transmission projects and substation projects were 401.19, 319.68 μW/cm(2), respectively. All of the above exceeded the requirements of occupational exposure limits. The occupational radiation levels and exposure limits of hazardous chemical factors met the requirements of each post. Conclusion: During the construction of power transmission and transformation projects, the exposure levels of occupational hazard factors in multiple posts exceed the standard. The main responsibility of employers for occupational disease prevention and control should be implemented, and targeted comprehensive measures should be taken to reduce the exposure levels of occupational hazard factors of workers.

Humans , Dust , Occupational Diseases , Occupational Exposure/analysis , Occupational Health , Welding
Article in Chinese | WPRIM | ID: wpr-935817


Objective: To learn about the noise exposure and health status of workers and analyze factors that may affect the health outcomes of workers in an auto manufacturing enterprise in Tianjin City. Methods: In September 2020, occupational hygiene survey, noise exposure level detection and occupational health examination data collection were carried out in an auto parts manufacturing enterprise. Chi square test and unconditional logistic regression analysis were used to analyze the health effects of noise exposure and hearing loss of 361 noise exposure workers. Results: The rates of over-standard noise exposure, hearing loss and hypertension were 69.39% (34/49) , 33.24% (120/361) and 11.36% (41/361) , respectively. There were upward trends on age and noise-working years for hearing loss and hypertension rates (χ(2)=-5.95, -6.16, -2.81, -2.74, P<0.05) . Unconditional logistic regression analysis showed that age>35 years old, noise exposure length of service >10 years and noise L(EX, 8 h)>85 dB (A) were risk factors for hearing loss (OR=3.57, 95%CI: 1.09, 11.75; OR=4.05, 95%CI: 1.97, 8.25; OR=1.75, 95%CI: 1.00, 3.05; P=0.036, 0.001, 0.047) . Conclusion: This company has a high rate of job noise exceeding the standard, and noise-exposed workers have more serious hearing loss. Age, noise exposure and high noise exposure are risk factors for hearing loss.

Adult , Humans , Automobiles , Deafness , Hearing Loss, Noise-Induced/etiology , Hypertension/complications , Noise, Occupational/adverse effects , Occupational Diseases/complications , Occupational Exposure/analysis
Article in Chinese | WPRIM | ID: wpr-935794


Objective: To explore the occupational hazards caused by three kinds of welding operations, and to provide data support for individual protection. Methods: In October 2020, the welding fumes, metal elements and welding arc generated by three welding operations of argon gas shielded welding (JS80 welding wire) , manual welding (ZS60A welding rod) and carbon dioxide shielded welding (907A flux cored wire) were collected and measured in the welding laboratory. The samples were analyze and compare in the laboratory, and the differences of the occupational hazard factors of the three welding operations were judged. Results: The concentration of welding fume produced by carbon dioxide shielded welding, manual welding (ZS60A electrode) , and argon gas shielded welding (JS80 welding wires) were 6.80 mg/m(3), 6.17 mg/m(3), and 3.13 mg/m(3), respectively. The effective irradiance of the welding arc outside the welding mask from high to low is manual welding (ZS60A electrode) , carbon dioxide shielded welding (907A flux-cored welding wire) , and argon shielded welding (JS80 welding wire) , respectively 1 010.7, 740.9, 589.5 μW/cm(2). The long-wave ultraviolet UVA intensity generated by argon shielded welding (JS80 welding wire) is the largest, which is 1 500 μW/cm(2). The content of Mn in the three welding operations is the highest, and JS80 welding wire has the highest Mn content of 128493.2 mg/kg. 907A flux cored wire has the highest Ti content, which is 24355.5mg/kg. The electrode ZS60A has the highest Cu content, which is 24422.12 mg/kg. Conclusion: The intensity of occupational hazards is different in the three kinds of welding operations, so the methods of personal protective equipment, field exposure assessment and health monitoring should be more targeted.

Air Pollutants, Occupational/analysis , Argon/analysis , Carbon Dioxide/analysis , Gases/analysis , Occupational Exposure/analysis , Welding/methods
Article in Chinese | WPRIM | ID: wpr-935793


Objective: To investigate the detection of suspected occupational diseases and occupational contraindications for benzene workers in Tianjin. Methods: In June 2020, the occupational health inspection data of 16113 benzene workers in 514 enterprises with benzene hazards in 16 municipal districts in Tianjin from January to December 2019 were included in the analysis. Enterprise information included the employer's region, economic type, industry classification and enterprise scale. Occupational health inspection data for benzene workers during their on-the-job period included routine inspection indicators and benzene special inspection indicators. Multivariate unconditional logistic regression was used to analyze the relationship between personal general information, occupational history, enterprise information and suspected benzene poisoning and occupational contraindications of benzene workers. Results: There were 16073 benzene workers in the normal group and 24 in the suspected benzene poisoning group. The detection rate of suspected benzene poisoning in females was higher than that in males (χ(2)=8.26, P=0.004) . There was no significant difference in the detection rates of suspected benzene poisoning among different dimensions such as age, length of service, occupational health inspection institution location, employer location, industry classification, economic type, and enterprise scale (P>0.05) . There were 16073 benzene workers in the normal group and 16 in the benzene contraindication group. The detection rate of benzene contraindications for workers in suburban areas where occupational health inspection institutions were located was higher than that in urban areas (χ(2)=9.71, P=0.002) , and there was no significant difference in the detection rates of contraindications for benzene in other dimensions (P>0.05) . Multivariate logistic regression analysis showed that female benzene workers were more likely to detect suspected benzene poisoning (OR=3.53, 95%CI: 1.57-7.94, P=0.002) ; benzene workers who received physical examination in suburban occupational health inspection institutions (OR=5.81, 95%CI: 1.94-17.42, P=0.002) , the employer's area was in the suburbs (OR=9.68, 95%CI: 1.23-76.07, P=0.031) , and female workers (OR=3.07, 95%CI: 1.13-8.37, P=0.028) , it was easier to detect occupational contraindications. Conclusion: Female benzene workers with employers located in the suburbs have a higher risk of detecting occupational contraindications, and women are more likely to detect suspected benzene poisoning. The management of benzene operations in the production environment of enterprises in the suburbs of Tianjin and the occupational health monitoring of female workers should be strengthened.

Female , Humans , Male , Benzene/analysis , Industry , Occupational Diseases/epidemiology , Occupational Exposure/analysis , Occupational Health
Article in Chinese | WPRIM | ID: wpr-935756


Objective: To analyze the thyroid condition and influencing factors of radiation workers, and to provide scientific basis for radiation protection management. Methods: In April 2020, 4308 radiation workers from October 1, 2017 to September 30, 2019 were collected for occupational health examination in Hangzhou Occupational Disease Prevention and Treatment Hospital, the data included basic information, Thyroid hormone level and thyroid color doppler ultrasound results. The thyroid status of radiation workers in different subgroups was compared. The influencing factors of Thyroid nodule were analyzed by multiple logistic regression. Results: 616 radiation workers had abnormal thyroid gland (14.3%, 616/4308) . The main manifestations of thyroid gland abnormality were abnormal Thyroid nodule (5.1%, 220/4308) and abnormal TSH level (7.1%, 308/4308) . Compared with the male radiation workers, the abnormal rate of Thyroid nodule, T3 and Tsh in female radiation workers was higher (P<0.05) , and the abnormal rate of Thyroid nodule, T3 and T4 increased with the increase of working age (P<0.05) . Radiation Workers in non-rated medical institutions and private medical institutions had the highest detection rate of Thyroid nodule (P<0.05) , and there was no significant difference in thyroid abnormalities among Workers (P<0.05) . By multiple logistic regression analysis, Sex (female) , age and institution type (private) were all independent risk factors for Thyroid nodule (95% CI: 1.548~2.763、1.002~1.030, P<0.05) . Conclusion: Ionizing radiation can cause thyroid damage in radiation workers, so we should pay more attention to the radiation protection management of female, high age, private and district medical organizations, so as to protect the health of radiation workers.

Female , Humans , Male , Occupational Diseases/epidemiology , Occupational Exposure/analysis , Radiation, Ionizing , Thyroid Nodule/epidemiology
Article in Chinese | WPRIM | ID: wpr-935747


This article investigated an occupational chronic benzene poisoning incident that occurred in a sealing material factory in Hebei Province in September 2019, analyzed the clinical data of workers, to explore the causes of occupational chronic benzene poisoning, and summarize the diagnosis and treatment characteristics and treatment outcome. According to GBZ 68-2013 "Diagnosis of Occupational Benzene Poisoning", a total of 12 cases of occupational chronic benzene poisoning were diagnosed among the 20 workers, including 2 cases of occupational chronic mild benzene poisoning, 7 cases of moderate benzene poisoning, and 3 cases of severe benzene poisoning. Both mild and moderate poisoning patients had recovered after treatment. Severely poisoned patients had recovered more slowly, and the white blood cell count was still 2.0×10(9)-3.0×10(9)/L during the 1-year follow-up. This benzene poisoning incident was caused by illegal operations. The responsibility of the employer, the supervision of the administrative agency, and the awareness of personal protection of employees should be strengthened to avoid or reduce the occurrence of poisoning incidents and ensure the health of workers.

Humans , Accidents, Occupational , Benzene/analysis , Chronic Disease , Leukocyte Count , Occupational Diseases/epidemiology , Occupational Exposure/analysis , Poisoning
Braz. j. biol ; 81(3): 632-641, July-Sept. 2021. tab
Article in English | LILACS | ID: biblio-1153394


Abstract In this sense the objective of assessing the levels of pesticide poisoning in rural farmers of San Sebastian and take AL, using acetylcholinesterase enzymes Erythrocyte and plasma as biological indicator of intoxication. This is a prospective, transversal and descriptive variables analyzed were: year whose, sex, age group, education, location, condition, route of exposure. The data were acquired by collecting blood samples and socio demographic information of farmers. Was put as the determining factor the type of conventional and organic farming, and periods of drought and rainy. 56 volunteers were analyzed. The analyses were performed in the automatic biochemical Analyzer Cobas Integra 400 plus®. According to the results of the analyses, it was the largest number of individuals with reduced values of cholinesterase, specifically the Group of conventional farming, the period of greatest change index was in the rainy season, where the activity of AChE, expressive values presented in the city of São Sebastião, with 80% result of intoxicated, in the city of the foot - take, 21.73% over the same period. On analysis of the AChP, São Sebastião has obtained the highest number of contaminated with 18.75% and 30% respectively, in the District Take Foot stood between 10 and 21.73% of reduced levels of cholinesterase. This sets the organic system of cultivation, as the best alternative for prevention of future diseases, in addition to bringing quality of life for rural workers, as well as for consumers.

Resumo Nesse sentido objetivou-se avaliar os níveis de intoxicação por agrotóxicos em agricultores rurais de São Sebastião e Pé Leve - AL, utilizando as enzimas acetilcolinesterase Eritrocitária e Plasmática, como indicador biológico de intoxicação. Trata - se de um estudo prospectivo, transversal e descritivo cujas variáveis analisadas foram: ano, sexo, faixa etária, escolaridade, local, circunstância, via de exposição. Os dados foram adquiridos através da coleta das amostras de sangue e das informações sócio demográficas dos agricultores. Foi posto como fator determinante o tipo de cultivo convencional e orgânico, e os períodos de estiagem e chuvoso. Foram analisados 56 voluntários. As análises foram realizadas no analisador automático de bioquímica Cobas Integra® 400 plus. De acordo com os resultados das análises, percebeu-se maior número de indivíduos com valores diminuídos da colinesterase, especificamente no grupo de cultivo convencional, o período de maior índice de alteração foi na época chuvosa, onde a atividade da AChE, apresentou valores expressivos na cidade de São Sebastião, com resultado de 80% de intoxicados, na cidade do Pé - Leve, obteve-se 21,73% no mesmo período. Na análise da AChP, São Sebastião obteve maior número de contaminados com 18,75% e 30% respectivamente, já no Distrito Pé Leve ficou entre 10 e 21,73% de níveis diminuídos da colinesterase. Isso define o sistema orgânico de cultivo, como a melhor alternativa para prevenção de futuras patologias, além de trazer qualidade de vida para os trabalhadores rurais, como também para os consumidores.

Humans , Pesticides , Occupational Exposure/analysis , Acetylcholinesterase , Quality of Life , Prospective Studies , Farmers
Article in Chinese | WPRIM | ID: wpr-887876


Objective To design a novel automatic dispensing and injecting system of positron radiopharmaceuticals,for precise dose dispensing,simplified operation,and reduction of occupational radiation exposure. Methods The automatic dispensing and injecting system was fabricated with tungsten alloy as the shielding material.The performance and radiation protection of the device were assessed. Results The total time of injection using the automatic dispensing and injecting system was about 60 s.The ratio of successful injection in stability test was 100%.The deviation of the dispensing dose with the system was ≤3%.With the tungsten alloy shield(40 mmPb of the cabinet,60 mmPb of the countertop,15 mmPb of the protective shield,and 50 mmPb of the inbuilt jar for radiopharmaceuticals),the average dose rate at 30 cm from the device was 1.44 μSv/h,and the radiation dose at the operator's extremity was reduced by 99%. Conclusions This automatic dispensing and injecting system of positron radiopharmaceuticals is easy to operate with precise dispensing dose.It is safe and meets the requirements of radiation protection.

Electrons , Occupational Exposure/analysis , Radiation Dosage , Radiation Protection , Radiopharmaceuticals
Medwave ; 20(6): e7952, 31-07-2020.
Article in English, Spanish | LILACS | ID: biblio-1118786


OBJETIVOS: Determinar el nivel de cultura ambiental de los recicladores del sector informal y el cumplimiento de los estándares de salud ocupacional de los recicladores informales. OBJETIVOS ESPECÍFICOS: conocer la relación entre el nivel de cultura ambiental y cumplimiento de los estándares de salud ocupacional: exposición a los agentes físicos, químicos, biológicos y ergonómicos en los recicladores informales en 2019. METODOLOGÍA: Estudio cuantitativo, correlacional, corte transversal y no experimental. Participó una muestra de 400 recicladores informales. Se aplicaron dos cuestionarios: cultura ambiental y estándares de salud ocupacional. RESULTADOS: Existe relación entre positiva media y positiva débil entre la variable cultura ambiental y los diferentes agentes (físico, químico, biológico y ergonómico). Existe correlación significativa positiva media, entre la cultura ambiental y la salud ocupacional. Igualmente, existe correlación significativa positiva débil entre la cultura ambiental y los agentes (físico, químico, biológico y ergonómico), y correlación significativa positiva entre cultura ambiental y el agente responsabilidad social. CONCLUSIONES: Los recicladores informales no satisfacen sus necesidades básicas y derechos. El reciclaje informal se caracteriza por inseguridad en su salud ocupacional, por lo que es necesario crear entornos laborales formales y seguros, con prácticas de promoción y prevención sanitaria.

PURPOSE: To determine the level of environmental culture of the informal sector waste pickers and compliance with occupational health standards of informal waste pickers. SPECIFIC OBJETIVES: to explore the relationship between the level of environmental culture and compliance with occupational health standards: exposure to physical, chemical, biological, and ergonomic agents in informal waste pickers in 2019. METHODS: Quantitative, correlational, cross-sectional, and non-experimental study. A sample of 400 informal waste pickers participated. Two questionnaires were applied: environmental culture and occupational health standards. RESULTS: There is a medium positive and weak positive relationship between the environmental culture variable and the different agents (physical, chemical, biological, and ergonomic). There is a significant positive correlation between environmental culture and occupational health. Likewise, there is a weak positive significant correlation between environmental culture and agents (physical, chemical, biological, and ergonomic), and a significant positive correlation between environmental culture and the social responsibility agent. CONCLUSIONS: Informal waste pickers do not have their basic needs and rights met. A lack of occupational health safety characterizes informal recycling, so it is necessary to create formal and safe work environments with health promotion and prevention practices.

Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Refuse Disposal , Occupational Exposure/analysis , Occupational Health/standards , Peru , Social Responsibility , Cross-Sectional Studies , Surveys and Questionnaires , Human Rights
Ciênc. Saúde Colet. (Impr.) ; 24(4): 1517-1526, abr. 2019. tab, graf
Article in Portuguese | LILACS | ID: biblio-1001752


Resumo A exposição ocupacional ao mercúrio (Hg) foi avaliada em 4 cooperativas de materiais recicláveis por meio de amostragens de ar em 9 áreas (monte de triagem, balança, prensa, sala de resíduos de equipamentos eletroeletrônicos-REEE, refeitório, escritório, empilhadeira, esteira e pátio externo). Das 83 amostras, apenas 14,5% apresentaram concentrações acima do limite de quantificação (LQ) e 53% entre o LD (limite de detecção) e LQ. A maioria dos valores > LQ ocorreu na cooperativa A, no monte (0,032 µg.m -3 ) e balança (0,029 µg.m -3 ). Nos dias de amostragem houve descarregamento de lâmpadas fluorescentes, o que pode explicar os maiores teores de Hg nessa cooperativa. Na cooperativa B a concentração foi 0,033 µg.m -3 na esteira e < 0,003 µg.m -3 nas outras áreas. Nas cooperativas C e D todos os valores foram < 0,007 µg.m -3 . As áreas de REEE apresentaram baixas concentrações, provavelmente devido ao baixo volume de REEE e forma de processamento do material. Os resultados estiveram abaixo dos valores de referência ocupacional, indicando que os trabalhadores não estão expostos ao Hg. No entanto, o desenho amostral pode não ter sido abrangente devido à intermitência no processamento de REEE e à imprevisibilidade da ocorrência de lâmpadas fluorescentes no material reciclável .

Abstract The occupational exposure to mercury (Hg) was assessed in four cooperatives of recyclable materials by air sampling in nine areas (recyclable materials pile, scale, baling press machine, e-waste room, cafeteria, office, forklift, conveyor belt, and outside patio). Of the 83 samples, only 14.5% showed concentrations above the limit of quantification (LOQ) while 53% were between the LOD (limit of detection) and LOQ. Most values > LOQ occurred at Cooperative A, at the pile (0.032 μg.m-3) and scale (0.029 μg.m-3). The higher values recorded at this Cooperative might be associated with the unloading of fluorescent lamps on the day of sampling. In cooperative B, the concentration was 0.033 μg.m-3 on the conveyor belt and < 0.003 µg.m-3 in other areas. In cooperatives C and D, all samples showed values < 0.007 μg.m-3. The Hg concentrations were low in areas of e-waste handling and storage, probably due to the small amount of material and way of processing. The results were below the occupational reference values, showing that the workers are not exposed to Hg. However, the sampling design might not have been comprehensive due to the discontinuity of the e-waste processing and the unpredictable occurrence of fluorescent lamps mixed with recyclable materials .

Humans , Environmental Monitoring/methods , Occupational Exposure/analysis , Recycling , Mercury/analysis , Brazil
Rev. saúde pública (Online) ; 52: 70, 2018. tab, graf
Article in English | LILACS | ID: biblio-962275


ABSTRACT OBJECTIVE To describe urinary cotinine levels in tobacco farmers. METHODS A cross-sectional study was conducted in 2,570 tobacco farmers. All participants that reported green tobacco sickness in the week prior to the interview plus a subsample of 492 pesticide applicators were included. We collected urinary samples and information about sociodemographic, behavioral, dietary, occupational characteristics, and pesticide poisoning during their lifetime. Stratification by sex and smoking was performed and the Wilcoxon and Kruskal-Wallis non-parametrical tests were used to analyze cotinine means. RESULTS This study included 582 individuals. There was no difference in urinary cotinine means between green tobacco sickness symptomatic and asymptomatic individuals. Among non-smokers, having picked tobacco in the previous week was associated with higher cotinine means in both genders. Cotinine levels were higher on the first day of symptoms and reduced exponentially with each day in female non-smokers. Male non-smokers had higher levels on the second day and a more gradual reduction. The cotinine level rose up to 15 cigarettes/day of consumption. CONCLUSIONS The urinary cotinine measures exposure to nicotine up to its saturation point; while green tobacco sickness, affected by tolerance, indicates nicotine poisoning. Strategies to reduce nicotine exposure in tobacco production are needed. Mechanization could be an alternative, as long as it overcame the challenge of irregular terrain and did not affect the quality of the leaf. More studies are needed to evaluate the chronic effect of nicotine exposure.

Humans , Male , Female , Adolescent , Adult , Young Adult , Tobacco/poisoning , Occupational Exposure/analysis , Cotinine/urine , Agricultural Workers' Diseases/urine , Farmers , Nicotine/poisoning , Pesticides/adverse effects , Skin Absorption , Time Factors , Tobacco/metabolism , Brazil/epidemiology , Smoking/adverse effects , Smoking/epidemiology , Sex Factors , Cross-Sectional Studies , Occupational Exposure/adverse effects , Occupational Exposure/statistics & numerical data , Age Factors , Statistics, Nonparametric , Agricultural Workers' Diseases/epidemiology , Middle Aged , Nicotine/metabolism
Cad. Saúde Pública (Online) ; 34(2): e00034417, 2018. tab, graf
Article in Portuguese | LILACS | ID: biblio-952362


O objetivo foi avaliar o nível de exposição ao chumbo e mercúrio em população do Pantanal Mato-grossense, Brasil. Chumbo no sangue (Pb-S) (n = 119) e mercúrio na urina (Hg-U) (n = 109) de moradores da região foram determinados por espectrometria de absorção atômica. A comparação de médias e correlação entre as variáveis utilizaram o teste ANOVA e a regressão linear, respectivamente, com 95% de confiança. Pb-S médio foi 2,82 ± 1,53µg dL-1. A comparação de Pb-S estratificado por local de coleta (p ≤ 0,01), atividade laboral (p ≤ 0,01) e consumo de leite produzido na região (p ≤ 0,05) mostrou diferenças estatisticamente significativas. Também houve associações positivas entre Pb-S e local de coleta (p ≤ 0,01), profissão dos participantes (p ≤ 0,05), consumo de leite da região (p ≤ 0,01) e origem da água de consumo (p ≤ 0,01). A média de Hg-U foi 1,41 ± 0,98µg L-1. Os teores mostraram diferenças significativas apenas quanto à profissão dos participantes (p ≤ 0,01), e associações positivas surgiram entre Hg-U e atividade profissional (p ≤ 0,01) assim como índice de massa corporal dos sujeitos de estudo (p ≤ 0,01). As amostras apresentaram baixos níveis de chumbo e mercúrio, semelhantes àqueles encontrados em populações também expostas ambientalmente. Apesar dessas baixas concentrações, o conhecimento atual sobre toxicidade desses metais mostra que efeitos à saúde já podem ser sentidos em níveis antes considerados seguros, o que caracteriza o perigo.

El objetivo fue evaluar el nivel de exposición al plomo y mercurio en una población del Pantanal Mato-grossense, Brasil. El plomo en sangre (Pb-S) (n = 119) y mercurio en la orina (Hg-U) (n = 109) de los habitantes de esa región se determinó por espectrometría de absorción atómica. La comparación de medias y la correlación entre las variables utilizaron el test ANOVA y la regresión lineal, respectivamente, con un 95% de confianza. Pb-S medio fue 2,82 ± 1,53µg dL-1. La comparación de Pb-S estratificado por lugar de recogida (p ≤ 0,01), actividad laboral (p ≤ 0,01) y consumo de leche que se produjo en la región (p ≤ 0,05) mostró diferencias estadísticamente significativas. También hubo asociaciones positivas entre Pb-S y el lugar de recogida (p ≤ 0,01), profesión de los participantes (p ≤ 0,05), consumo de leche de la región (p ≤ 0,01) y origen del agua de consumo (p ≤ 0,01). La media de Hg-U fue 1,41 ± 0,98µg L-1. Los porcentajes mostraron diferencias significativas sólo respecto a la profesión de los participantes (p ≤ 0,01), y las asociaciones positivas surgieron entre Hg-U y la actividad profesional (p ≤ 0,01), así como índice de masa corporal de los sujetos de estudio (p ≤ 0,01). Las muestras presentaron bajos niveles de plomo y mercurio, semejantes a aquellos encontrados en poblaciones también expuestas ambientalmente. A pesar de esas bajas concentraciones, el conocimiento actual sobre toxicidad de estos metales muestra que los efectos sobre la salud, ya pueden ser apreciados en niveles antes considerados seguros, lo que caracteriza el peligro.

The objective was to assess the level of exposure to lead and mercury in a population in the Pantanal region in Mato Grosso State, Brazil. Blood lead (PbB) (n = 119) and urinary mercury (HgU) (n = 109) in local residents were measured by atomic absorption spectrometry. Comparison of means and correlations between variables used analysis of variance (ANOVA) and linear regression, respectively, with 95% confidence intervals. Mean PbB was 2.82 ± 1.53µg dL-1. The comparison of PbB stratified by collection site (p ≤ 0.01), work activity (p ≤ 0.01), and consumption of locally produced cow's milk (p ≤ 0.05) showed statistically significant differences. There were also positive associations between PbB and collection site (p ≤ 0.01), participants' profession (p ≤ 0.05), local milk (p ≤ 0.01), and source of drinking water (p ≤ 0.01). Mean HgU was 1.41 ± 0.98µg L-1. The levels only showed significant differences for participants' profession (p ≤ 0.01), and positive associations emerged between HgU and work activity (p ≤ 0.01) and body mass index (p ≤ 0.01). The samples showed low lead and mercury levels, similar to those found in other environmentally exposed populations. Despite these low concentrations, current knowledge on the toxicity of these metals shows that health effects can already be felt at levels that were previously considered safe, thus characterizing a health hazard.

Humans , Male , Female , Adolescent , Adult , Middle Aged , Young Adult , Occupational Exposure/analysis , Environmental Exposure/analysis , Environmental Pollutants/analysis , Lead/blood , Mercury/urine , Spectrophotometry, Atomic , Brazil , Biomarkers/analysis , Cross-Sectional Studies
Ciênc. Saúde Colet. (Impr.) ; 23(11): 3903-3911, Oct. 2018. tab
Article in English | LILACS | ID: biblio-974754


Abstract Farming is a risky occupation, especially family farming in developing country. The occupational hazards commonly used in such activity could affect all family members, including children and adolescents. This study describes the pattern of pesticide exposure among students and their families from a farming region located in Nova Friburgo, State of Rio de Janeiro, Brazil. Sociodemographic characteristics, habits, working practices and the degree of exposure to pesticides were assessed by a questionnaire. Our study population consisted of students and family members of both sexes, aged between 6 and 85 years old (N = 352) being 167 women and 185 men. There was a predominance of participants between 10-19 years (71.3%), singles (77.5%), and most had not completed primary education (54.5%). In terms of occupation, 45.5% reported to be farmers and 39.6% were students. The variables mostly associated with pesticide exposure were sex (p < 0.001), educational level (p < 0.001), and being a farmer (p < 0.001). Our results showed that children and teenagers seemed to have the same degree of exposure to pesticides as the adults. Our findings also suggest that sex, occupation and educational level, despite teachers were included, are directly associated with degree of exposure.

Resumo Agricultura é uma ocupação de risco, principalmente a familiar em países em desenvolvimento. Os perigos ocupacionais comuns a essa atividade podem atingir a toda família, incluindo crianças e adolescentes. Este estudo descreve o padrão do uso de agrotóxicos entre estudantes e seus familiares em uma região agrícola localizada em Nova Friburgo, Estado do Rio de Janeiro, Brasil. Características sociodemográficas, hábitos, práticas de trabalho e grau de exposição a agrotóxicos foram adquiridas através do uso de questionário. Nossa população de estudo consistiu em estudantes e seus familiares de ambos os sexos, entre 6 e 85 anos de idade (N = 352) sendo 167 mulheres e 185 homens. Houve a predominância de participantes entre 10 - 19 anos (71,3%), solteiros (77,5%), e a maioria com o ensino fundamental incompleto (54,5%). Quanto à ocupação, 45,5% reportaram-se como agricultores e 39,6% como estudantes. As variáveis mais associadas à exposição a agrotóxicos foram sexo (p < 0,001), nível educacional (p < 0,001) e ser agricultor (p < 0,001). Nossos resultados mostraram que crianças e adolescentes parecem ter o mesmo grau de exposição a agrotóxicos que adultos. Nossos achados também sugerem que sexo, ocupação e nível educacional, incluindo professores, estão diretamente associados ao grau de exposição.

Humans , Male , Female , Child , Adolescent , Adult , Aged , Aged, 80 and over , Young Adult , Pesticides/analysis , Family Health , Occupational Exposure/analysis , Occupational Health , Students/statistics & numerical data , Brazil , Sex Factors , Surveys and Questionnaires , Age Factors , Agriculture , Educational Status , Middle Aged
Rev. latinoam. enferm. (Online) ; 25: e2853, 2017. tab
Article in English | LILACS, BDENF | ID: biblio-845325


ABSTRACT Objective: analyze the concentration of polycyclic aromatic hydrocarbons in electrocautery smoke in operating rooms and the use of personal protective equipment by the intraoperative team when exposed to hydrocarbons. Method: exploratory and cross-sectional field research conducted in a surgery center. Gases were collected by a vacuum suction pump from a sample of 50 abdominal surgeries in which an electrocautery was used. A form was applied to identify the use of personal protective equipment. Gases were analyzed using chromatography. Descriptive statistics and Spearman's test were used to treat data. Results: there were 17 (34%) cholecystectomies with an average duration of 136 minutes, while the average time of electrocautery usage was 3.6 minutes. Airborne hydrocarbons were detected in operating rooms in 100% of the surgeries. Naphthalene was detected in 48 (96.0%) surgeries and phenanthrene in 49 (98.0%). The average concentration of these compounds was 0.0061 mg/m3 and a strong correlation (0.761) was found between them. The intraoperative teams did not use respirator masks such as the N95. Conclusion: electrocautery smoke produces gases that are harmful to the health of the intraoperative team, which is a concern considering the low adherence to the use of personal protective equipment.

RESUMEN Objetivo: analizar las concentraciones de hidrocarburos policíclicos aromáticos provenientes del humo del electrocauterio en salas quirúrgicas y el uso de equipamientos de protección individual por parte del equipo intraoperatorio, cuando expuestos a los hidrocarburos. Método: investigación de campo, exploratoria y transversal realizada en un centro quirúrgico. En la muestra, compuesta por 50 cirugías abdominales con uso de electrocauterio, los gases fueron recolectados con una bomba de succión de vacío. Se aplicó un formulario para identificar el uso de los equipamientos de protección. Se realizó la lectura de los gases por medio de cromatografía. Los datos fueron analizados con la estadística descriptiva y el test de Spearman. Resultados: 17 (34%) fueron colecistectomías con tiempo medio quirúrgico de 136 minutos y tiempo medio de uso del electrocauterio de 3,6 minutos. Fueron detectados hidrocarburos en el aire de las salas de operación en 100% de las cirugías. Se detectó el naftaleno en 48 (96,0%) cirugías y el fenantreno en 49 (98,0%). Las concentraciones promedio de esos compuestos fueron de 0,0061 mg/m3. Hubo correlación (0,761) fuerte entre estos compuestos. El equipo intraoperatorio no utilizó máscaras respiratorias, como la N95. Conclusión: el humo del electrocauterio produce gases perjudiciales para la salud del equipo intraoperatorio que se encuentra expuesto debido a la baja adhesión al uso de equipamientos de protección individual, tornando preocupante esta exposición.

RESUMO Objetivos: analisar as concentrações de hidrocarbonetos policíclicos aromáticos provenientes da fumaça do eletrocautério em salas cirúrgicas e o uso de equipamentos de proteção individual pela equipe intraoperatória quando expostos aos hidrocarbonetos. Método: pesquisa de campo, exploratória e transversal realizada em um centro cirúrgico. Na amostra composta por 50 cirurgias abdominais com uso de eletrocautério, os gases foram coletados por bomba de sucção a vácuo. Um formulário foi aplicado para identificar o uso dos equipamentos de proteção. Realizou-se a leitura dos gases por cromatografia. Os dados foram analisados por estatística descritiva e teste de Spearman. Resultados: 17 (34%) foram as colecistectomias com tempo médio cirúrgico de 136 minutos e tempo médio de uso do eletrocautério de 3,6 minutos. Hidrocarbonetos foram detectados no ar das salas operatórias em 100% dos atos cirúrgicos. Detectou-se o naftaleno em 48 (96,0%) cirurgias e o fenantreno em 49 (98,0%). As concentrações médias desses compostos foram de 0,0061 mg/m3. Houve correlação (0,761) forte entre estes compostos. A equipe intraoperatória não utilizou máscaras respiratórias, como a N95. Conclusão: a fumaça do eletrocautério produz gases prejudiciais à saúde da equipe intraoperatória exposta e diante da baixa adesão ao uso de equipamentos de proteção individual, tornando-se preocupante esta exposição.

Humans , Male , Female , Polycyclic Aromatic Hydrocarbons/analysis , Smoke/analysis , General Surgery , Occupational Exposure/analysis , Electrocoagulation , Personal Protective Equipment , Operating Rooms , Cross-Sectional Studies
Rev. chil. enferm. respir ; 32(2): 113-118, jun. 2016. ilus, tab
Article in Spanish | LILACS | ID: lil-795887


Wheat flour is a known sensitizer for humans. Bakers exposed to flour dust may develop occupational rhinitis and asthma. In Chile there is no current permissible limit for occupational exposure to wheat flour. To propose such a limit, 9 bakeries located in 6 districts of Santiago de Chile were evaluated, 6 bakeries were semi-industrial and 3 were small business. Twenty-eight environmental personal samples were obtained by standard sampling methods and they were analyzed at the Institute of Public Health of Chile. No significant differences were found (p = 0,2915, Kruskall-Wallis' test) between air concentrations of flour particles in the working environment of semi-industrial (geometric mean: MG = 0.88 mg/m³,geometric deviation: DEG = 2,68) and small business (MG = 1.39 mg/m³, DEG = 2,31). A permissible limit of wheat flour dust exposure is recommended.

Se conoce que la harina de trigo es un sensibilizador en seres humanos. Los panaderos expuestos a polvo de harina pueden desarrollar rinitis y asma ocupacional. En Chile actualmente no existe un límite permisible para la exposición ocupacional a polvo de harina. Con el objetivo de proponer un límite, fueron evaluadas 9 panaderías de 6 comunas de Santiago de Chile, de las cuales 6 fueron semi-industriales y 3 pequeñas. Un total de veintiocho muestras personales de aire fueron obtenidas según método estándar de muestreo y analizadas en el Instituto de Salud Pública de Chile. No se encontraron diferencias significativas (p = 0,2915, prueba de Kruskall-Wallis) en la concentración de partículas de harina en el ambiente de trabajo semi-industrial (media geométrica: MG = 0,88 mg/m³, desviación geométrica: DEG = 2,68) y en el de panaderías pequeñas (MG = 1,39 mg/m³, DEG = 2,31). En base a las observaciones realizadas se recomienda establecer un límite permisible de exposición para polvo de harina de trigo.

Humans , Male , Powders/analysis , Allergens/analysis , Occupational Exposure/adverse effects , Asthma, Occupational/etiology , Flour/analysis , Food Industry , Chile , Occupational Exposure/analysis
Cad. Saúde Pública (Online) ; 32(12): e00129415, 2016. tab
Article in Portuguese | LILACS | ID: biblio-828405


Resumo: Estima-se o número de trabalhadores expostos e a prevalência da exposição ocupacional ao benzeno no Brasil. Por causa da falta de mensurações locais disponíveis para a pesquisa, empregaram-se dados de uma matriz de exposição ocupacional, a Finnish National Job-Exposure Matrix (FINJEM), que contemplam proporções de expostos ao benzeno calculadas com medidas ambientais. No Brasil, o Censo Demográfico de 2010 identificou 86.353.839 trabalhadores ativos e ocupados. Aplicando-se os parâmetros da FINJEM, estimou-se que 7.376.761 (8,5%) pertenciam a grupos ocupacionais potencialmente expostos, enquanto 770.212 foram considerados expostos ao benzeno, correspondendo a uma prevalência ponderada por grupo ocupacional de 0,9%, maior em homens (1,1%) que em mulheres (0,6%). Expostos se concentraram no grupo de Operadores e Mecânicos de Máquinas e Motores (62%). O número de expostos e a prevalência da exposição ocupacional ao benzeno são elevados mesmo considerando parâmetros da Finlândia, sugerindo a necessidade de monitoramento e controle desse cancerígeno no Brasil.

Abstract: This study estimates the number of exposed workers and the prevalence of occupational benzene exposure in Brazil. Due to the lack of available local measurements for the study, data were used from an occupational exposure matrix, the Finnish National Job-Exposure Matrix (FINJEM), which covers proportions of individuals exposed to benzene, calculated as environmental measures. In Brazil, the 2010 Demographic Census identified 86,353,839 workers in the workforce and employed. Applying the FINJEM parameters, an estimated 7,376,761 (8.5%) belonged to potentially exposed occupational groups, while 770,212 were considered exposed to benzene, corresponding to an occupational group-weighted prevalence of 0.9%, higher in men (1.1%) than in women (0.6%). Exposed individuals were concentrated in the category of Machine and Motor Operators and Mechanics (62%). The number of exposed and prevalence of occupational exposure to benzene are high, even when compared to Finnish parameters, suggesting the need for monitoring and control of this carcinogen in Brazil.

Resumen: En este trabajo se estima el número de trabajadores expuestos y la prevalencia de la exposición ocupacional al benceno en Brasil. Debido a la falta de mediciones locales disponibles para esta investigación, se emplearon datos de una matriz de exposición ocupacional: la Finnish National Job-Exposure Matrix (FINJEM), que contempla proporciones de expuestos al benceno, calculadas con medidas ambientales. En Brasil, el Censo Demográfico de 2010 identificó a 86.353.839 trabajadores activos y ocupados. Aplicándose los parámetros de la FINJEM, se estimó que 7.376.761 (8,5%) pertenecían a grupos ocupacionales potencialmente expuestos, mientras que 770.212 fueron considerados expuestos al benceno, correspondiendo a una prevalencia ponderada por grupo ocupacional de 0,9%, mayor en hombres (1,1%) que en mujeres (0,6%). Los expuestos se concentraron en el grupo de Operadores y Mecánicos de Máquinas y Motores (62%). El número de expuestos y la prevalencia de la exposición ocupacional al benceno son elevados, incluso considerando parámetros de Finlandia, sugiriendo la necesidad de un monitoreo y control de ese cancerígeno en Brasil.

Humans , Male , Female , Benzene/analysis , Occupational Exposure/analysis , Air Pollutants, Occupational/analysis , Occupations , Brazil/epidemiology , Occupational Exposure/statistics & numerical data , Occupations/statistics & numerical data
Rio de Janeiro; s.n; 2016. 136 p.
Thesis in Portuguese | LILACS, BDENF | ID: biblio-911489


O presente estudo tem como objetivo geral analisar a autoproteção profissional e pessoal na rede de representações sociais do HIV/aids na perspectiva dos profissionais de enfermagem. Os profissionais de enfermagem são aqueles que estão mais tempo em contato direto com seus clientes, e também os principais responsáveis pelo cuidado dos indivíduos. No entanto, ao mesmo tempo em que está imbuído na prestação de cuidado, tem conhecimento de que está lidando com riscos potenciais de contaminação. O estudo das representações sociais cria possibilidades para o entendimento das modulações do comportamento de determinadas regiões ou grupos de uma sociedade. Consiste em um estudo qualitativo, descritivo, pautado na Teoria das Representações Sociais, em sua abordagem processual. O grupo estudado contou com 36 sujeitos que atuam na assistência direta aos usuários, em Serviço de Assistência Especializada (SAE) e Centro de Testagem e Aconselhamento (CTA) da cidade do Rio de Janeiro, no ano de 2011. A coleta de dados se deu a partir de um questionário socioeconômico-profissional e entrevista semiestruturada, com roteiro temático pré-definido, sendo submetidas a análise de conteúdo, com o auxílio do software de análise NVIVO, em sua versão 8.0. Na análise dos dados socioeconômicos, constatou-se que a maior parte dos entrevistados pertence ao sexo feminino, com 88,89% da amostra dos participantes do estudo, e a totalidade apresenta formação escolar satisfatória para o cargo que ocupa, sendo superior a exigida em muitos casos. Na análise das entrevistas emergiram 5 grandes categorias: Medidas de proteção no cuidado à pessoa que vive com HIV/aids; O conhecimento e o medo de exposição ao HIV/aids determinando a autoproteção pessoal e profissional; Comportamento sexual e uso de preservativo ­ facetas da autoproteção pessoal às DST/HIV/aids; A educação em saúde e a capacitação profissional como estratégias de autoproteção pessoal e profissional; O cuidado à pessoa que vive com HIV/aids mediando a autoproteção profissional. Conclui-se que as mudanças nas representações sociais são capazes de interferir no manejo da autoproteção. Assim, é importante estimular a prevenção e proteção do profissional de enfermagem que cuida de PVHA, lembrando que a sua autoproteção deve ser priorizada, tanto no contexto profissional, quanto em sua vida privada.

This study has the general objective to analyze the professional and personal self-protection on the network of social representations of HIV / AIDS from the perspective of nursing professionals. Nursing professionals are the ones who are longer in direct contact with their customers, and are also primarily responsible for the care of individuals. However, while imbued in providing care, they are aware that they are dealing with potential contamination risks. The study of social representations creates possibilities for understanding the modulation of the behavior of certain regions or groups in society. It consists of a qualitative, descriptive study, based on the Theory of Social Representations, in its procedural approach. The study group included 36 subjects who work in direct assistance to users, in Specialized Care Service (SAE) and Testing and Counseling Center (CTA) in the city of Rio de Janeiro, in 2011. Data collection occurred from a socioeconomic and professional questionnaire and semi-structured interviews with predefined thematic guide, being subjected to content analysis, with the help of analysis software NVivo, in its version 8.0. In the analysis of socioeconomic data, it has been found that most of the respondents belonged to female gender, with 88.89% of the sample of study participants, and that all of the subjects hold satisfactory educational background for the position they occupy, being academic degree required in many cases. In the analysis of the interviews, five main categories have emerged: protection measures in the care of people living with HIV / AIDS; the knowledge and fear of exposure to HIV / AIDS determining the personal and professional self-protection; sexual behavior and condom use - personal self-protection facets of STD / HIV / AIDS; health education and professional training as personal and professional self-protection strategies; the care for the person living with HIV / AIDS mediating professional self-protection. Therefore, changes in social representations are able to interfere in the management of self-protection. Thus, it is important to encourage the prevention and protection of the nursing professional who takes care of PLWHA, remembering that their self-protection should be prioritized, both in the professional context, as in his private life.

Humans , Male , Female , Adult , Middle Aged , Acquired Immunodeficiency Syndrome/prevention & control , Health Personnel , HIV , Nurses, Male , Nursing , Nursing Care , Occupational Exposure/analysis
Article in English | WPRIM | ID: wpr-122522


Military personnel often use ammunitions that contain lead. The present study aimed to identify the risks for lead exposure and lead poisoning among workers at indoor firing ranges. A special health examination, including blood lead level (BLL) testing, was performed for all 120 workers at the indoor firing ranges of the Republic of Korea's Air Force, Navy, and Armed Forces Athletic Corps. The overall mean BLL was 11.3 ± 9.4 µg/dL (range: 2.0-64.0 µg/dL). The arithmetic mean of the BLL for professional shooters belong to Armed Forces Athletic Corps was 14.0 ± 8.3 µg/dL, while those of shooting range managers and shooting range supervisors were 13.8 ± 11.1 µg/dL and 6.4 ± 3.1 µg/dL, respectively. One individual had a BLL of 64 µg/dL, and ultimately completed chelation treatment (with CaNa2-ethylenediaminetetraacetic acid) without any adverse effects. These findings indicate that indoor firing range workers are exposed to elevated levels of lead. Therefore, when constructing an indoor firing range, a specialist should be engaged to design and assess the ventilation system; and safety guidelines regarding ammunition and waste handling must be mandatory. Moreover, workplace environmental monitoring should be implemented for indoor firing ranges, and the workers should undergo regularly scheduled special health examinations.

Adult , Female , Humans , Male , Young Adult , Air Pollutants/blood , Air Pollution, Indoor , Drinking , Edetic Acid/chemistry , Firearms , Lead/blood , Military Personnel , Occupational Exposure/analysis , Odds Ratio , Republic of Korea , Risk Factors , Spectrophotometry, Atomic
Rev. ciênc. farm. básica apl ; 36(4): 517-523, 01/10/2015.
Article in Portuguese | LILACS | ID: biblio-2587


O formaldeído, comercializado em solução aquosa a 37% (p/p), é um líquido incolor com odor forte e irritante. A presença deste agente cancerígeno em cremes cosméticos resulta em graves riscos à saúde tais como irritação, queimaduras na pele, ferimentos nas vias respiratórias e danos irreversíveis aos olhos e cabelos provocados pela inalação e contato com o produto. Seu uso foi permitido em concentração ≤ 0,2% (p/p) como conservante pela Agência Nacional de Vigilância Sanitária (ANVISA; Brasil, 2001) até junho de 2014, e a substância era adicionada a produtos cosméticos utilizados em escovas progressivas com a finalidade de alisar os cabelos. Diante dos riscos verificados com a utilização da substância, objetivou-se determinar qualitativa e quantitativamente, a incidência deste aldeído em produtos para alisamento capilar, a fim de estimar a concentração que os profissionais e usuários estão expostos, para garantir sua segurança. Observouse que 84,6% das amostras analisadas apresentaram alguma irregularidade, sendo que 61,5% das amostras analisadas apresentaram maior quantidade de formaldeído do que era permitido pela legislação (Brasil, 2001) como conservante e 53,8% apresentou mais de 10 vezes o percentual permitido, concentração irritante para a população em geral. Tendo em vista a gravidade dos dados apresentados, é necessária uma rígida fiscalização da qualidade dos alisantes capilares e estratégias de conscientização sobre riscos à saúde do contato com a substância.

Formaldehyde marketed in a 37% (w/w) aqueous solution is a colorless liquid with a strong irritating odor. The presence of this carcinogen in cosmetics creams results in serious health risks, such as irritation, skin burns, airway injury and irreversible damage to the eyes and hair caused by inhalation and contact with the product. Although its use was allowed up to a concentration of 0.2% (w/w) as a preservative by Brazilian Health Surveillance Agency (ANVISA; Brazil, 2001) until June 2014, the substance is added to cosmetic products used in progressive brushes in order to straighten hair. Given the risks seen with the use of the substance, the objective was to determine qualitatively and quantitatively this aldehyde in products for hair straightening in order to estimate the concentration that professionals involved and users are exposed to ensure their safety. It was observed that 84.6% of the samples showed some irregularity, being that 61.5% of the samples have a higher amount of formaldehyde than allowed by law (Brazil, 2001) as preservative and 53.8% had more than 10 times the allowable percentage, irritating concentration for the general population. Considering the severity of the data presented, it is need a strict quality supervision hair straightening products and strategies to increase awareness about health risks from contact with the substance.

Humans , Formaldehyde/analogs & derivatives , Hair Preparations/chemistry , Occupational Exposure/analysis , Risk Factors
Cienc. Trab ; 16(50): 75-80, ago. 2014. ilus, tab
Article in Spanish | LILACS | ID: lil-724762


Se estudió el aislamiento a la vibración, por medio del factor SEAT (Seat Effective Amplitude Transmissibility), de 4 tipos de asientos de grúa de horquilla, los cuales se seleccionaron por poseer distintos sistemas de amortiguamiento a las vibraciones. Los asiento utilizados fueron los modelos GRAMMER MSG71GBLV (SEAT = 0,55 en el eje Z), KAB Seating 21/T1 (SEAT = 0,96 en el eje Z), GENÉRICO BF2-3 (SEAT = 1,01 en el eje Z) y GENÉRICO BFL-3 (SEAT = 0,82 en el eje Z). Para obtener los valores SEAT, se efectuaron mediciones de 30 minutos para 2 condiciones, desplazamiento del vehículo sin carga durante 20 minutos por una ruta de 6 kilómetros y, luego, simulando una condición de trabajo habitual de una grúa de horquilla para trabajo cíclico con carga por un período de tiempo aproximado de 10 minutos. Adicionalmente, se evaluó la exposición a vibración del operador de la grúa de horquilla seleccionada según el D.S. N° 594/1999 y Directiva 2002/44/CE, documentos basados en la norma ISO 2631-1, con el fin de estudiar el efecto de los asientos en la exposición del operador y el nivel de riesgo asociado, para entregar recomendaciones sobre la selección y uso de asientos en grúas de horquilla.

It was studied the isolation of vibration by means of factor SEAT (Seat Effective Amplitude transmissibility) on 4 types of seat forklift truck, which were selected for having different systems of vibration damping. The seat models used were GRAMMER MSG71GBLV (SEAT = 0.55 in the Z axis), KAB Seating 21/T1 (SEAT = 0.96 in the Z axis), Generic BFL-3 (SEAT = 1.01 in the axis Z) and generic BFL-3 (SEAT = 0.82 in the Z axis). To obtain SEAT values, it were performed measurements of 30 minutes for 2 conditions, moving vehicle without load for 20 minutes by a 6 kilometer route and, then, simulating a typical work of a forklift truck to cyclic work with load for a period of time of approximately 10 minutes. Additionally, the exposure to vibration of selected forklift truck operator was evaluated according to the DS N ° 594/1999 and Directive 2002/44/EC documents based on ISO 2631-1, in order to study the effect of the seats in operator exposure and the level of associated risk, to provide recommendations on selection and use of forklift trucks seats.

Humans , Vibration , Occupational Exposure/analysis , Motor Vehicles