Salud ambiental infantil en el contexto de la reubicación de familias de campamentos a viviendas sociales / Child health environment in the context of relocating of camp site families to social housing

Introducción: Intervenciones habitacionales destinadas a superar la pobreza pueden generar cambios en la situación de salud de la población infantil, modificando factores de riesgo en el entorno físico y social de niños y niñas. El objetivo fue identificar indicadores de salud ambiental infantil susceptibles de ser modificados con la reubicación de familias desde campamentos a vivienda social. Sujetos y método: Estudio transversal en niños de 2-8 años. Se comparó dos grupos de familias provenientes de campamentos. Un grupo fueron familias reubicadas en viviendas sociales entre 2001 y 2002 (n = 115). El otro grupo corresponde a niños cuyas familias permanecieron en campamentos (n = 88) de la zona poniente de Santiago. Se recolectó información sobre: características socioeconómicas, ambiente intradomiciliario y de barrios, y eventos en salud: síntomas respiratorios, accidentabilidad y cuidado materno infantil. Se emplearon pruebas de x², Fisher y Mann-Whitney para la comparación de los grupos. Resultados: Se identifican diferencias entre los grupos comparados en relación a la tenencia de mascotas, presencia de hongos/humedad en el hogar, tipo de combustibles utilizados y problemas de seguridad percibidos en los barrios (p<0,05). Las familias de campamentos reportan una mayor tenencia de mascotas (73,8% v/s 32,2%%), presencia de huellas de humedad/hongos en el hogar (43,2% v/s 18,3%), uso de leña (39,8% v/s 0,0%), en comparación con familias de viviendas sociales. Residentes de viviendas sociales perciben mayores problemas de seguridad en el barrio, mientras que los niños presentan mayor frecuencia de síntomas relacionados con asma y menor diversidad de accidentes en el hogar comparado con el grupo residente en campamentos. Conclusiones: Entre los factores estudiados, aquellos susceptibles de ser modificados con la reubicación de familias desde campamentos a vivienda social se vinculan a indicadores de calidad del aire interior y seguridad en los barrios. Lo anterior refuerza la necesidad de profundizar en las influencias positivas y negativas de la movilidad residencial de estos grupos, desde una perspectiva centrada en el bienestar infantil.

Introduction: Housing interventions aimed at overcoming poverty can lead to changes in the health status of children by modifying risk factors in their physical and social environment Objective: the aim was to identify children's environmental health factors to change with the relocation of families from slums to public housing. Subjects and method: A cross-sectional study was conducted in children ages 2-8 years old of families relocated to public housing (n=115) who were compared to children residing in slums (n=88) in Santiago, Chile. Family socioeconomic characteristics, indoor environment and neighborhoods were collected. It was included respiratory symptoms, accidents and maternal-child care of children. x², Fisher and Mann-Whitney test were used to compare groups. Results: There were differences in households related to pets keeping, presence of humidity/molds in homes, types of fuels, and perceived safety problems in neighborhoods (p<0.05). The families from slums reported higher tenancy of pets (73.8% v/s 32.2%%), humidity/molds in homes (43.,2% v/s 18.3%), use of wood for heating (39.8% v/s 0.0%), compared with families of public housing. Residents of public housing perceived more safety problems in neighborhood, and children have more asthma related symptoms and have lower diversity of accidents in home. Conclusion: Among the factors studied, indoor air quality and safety in neighborhoods could be linked to changes from the relocation of families. This reinforces the need to deepen the positive and negative influences of residential mobility of these groups focused on child welfare perspective.

Indoor air pollution and respiratory illness in children from rural India a pilot study.

Objective. Indoor air pollution measured in terms of particulate matter <2.5μm in diameter (PM2.5), is an important cause of respiratory illness in children. Therefore, PM2.5 levels in rural households and its correlation with respiratory illness-related symptoms in children were studied. Methods. A questionnaire-based survey of children for respiratory illness-related symptoms was conducted in 37 households of a village (Khanpurjupti, Delhi-NCR, India) from September 2011 to October 2011. Assessment of 24-hour PM2.5 level was done using University of California-Berkeley Particle and Temperature Sensor (UCB-PATS). Results. Thirty-seven households in a rural area were studied. These were divided into 20 respiratory households, i.e. those with children with respiratory illness-related symptoms and 17 control households. The 24-hour PM2.5 was measured in all the houses. The average minimum and maximum PM2.5 levels were 7.24mg/m3 and 22.70mg/m3, respectively (mean=10.47mg/m3) among the 20 respiratory households. The average minimum and maximum PM2.5 levels were 1.10mg/m3 and 18.17mg/m3, respectively (mean=4.99mg/m3) in the 17 control households. The PM2.5 levels were significantly greater (p<0.05) in houses where children had respiratory symptoms compared to the control households. Further, biomass fuel use and number of family members were significantly associated with respiratory illness in children. Conclusion. Increased PM2.5 levels, biomass fuel use and number of family members were found to be associated with increased occurrence of respiratory illness in children.

Estudo exploratorio da qualidade do ar em escolas de educacao basica, Coimbra, Portugal / Estudio exploratorio de la calidad del aire en escuelas de educacion basica, Coimbra, Portugal / Exploratory study of air quality in elementary schools, Coimbra, Portugal

OBJETIVO : Analisar a qualidade do ar em escolas de educação básica e suas condições estruturais e funcionais. MÉTODOS : Foi avaliada a qualidade do ar de 51 escolas (81 salas de aula) de educação básica da cidade de Coimbra, Portugal, tanto na parte interior das salas como na exterior, durante as quatro estações do ano, de 2010 a 2011. Foram avaliadas a temperatura (Tº), umidade relativa (Hr), concentrações de monóxido de carbono (CO), dióxido de carbono (CO 2 ), ozona (O 3 ), dióxido de nitrogênio (NO 2 ), dióxido de enxofre (SO 2 ), compostos orgânicos voláteis (COV), formaldeído e material particulado (PM 10 ), de novembro de 2010 a fevereiro de 2011 (outono/inverno) e de março de 2011 a junho de 2011 (primavera/verão). Procedeu-se ao preenchimento de uma grelha de caracterização das condições estruturais e funcionais das escolas. Aplicaram-se os testes estatísticos t- Student para amostras emparelhadas e o teste t de Wilcoxon. RESULTADOS : Em 47 escolas, as concentrações médias de CO 2 encontravam-se acima da concentração máxima de referência (984 ppm) mencionada na legislação portuguesa. Os valores máximos de concentração encontrados no interior das salas foram críticos, principalmente no outono/inverno (5.320 ppm). As concentrações médias de COV e de PM 10 no interior ultrapassaram a concentração máxima de referência legislada em algumas escolas. Não foram detetados valores relevantes (risco) de CO, formaldeído, NO 2 , SO 2 e O 3 . CONCLUSÕES : Houve maior concentração de poluentes no interior das salas, comparativamente com o exterior. A inadequada ventilação está associada à elevada concentração de CO 2 nas salas de aula. .

OBJETIVO : Analizar la calidad del aire en escuelas de educación básica y sus condiciones estructurales y funcionales. MÉTODOS : Se evaluó la calidad del aire de 51 escuelas (81 salas de aula) de educación básica de la ciudad de Coimbra, Portugal, tanto en el interior de las salas como en el exterior, durante las cuatro estaciones del año, de 2010 a 2011. Se evaluaron la temperatura (T°), humedad relativa (Hr), concentraciones de monóxido de carbono (CO), dióxido de carbono (CO2), ozono (O3), dióxido de nitrógeno (NO2), dióxido de azufre (SO2), compuestos orgánicos volátiles (COV), formaldehido (HCHO) y material particulado (PM10), de noviembre de 2010 a febrero de 2011 (otoño/invierno) y de marzo de 2011 a junio de 2011 (primavera/verano). Se procedió a llenar una tabla de caracterización de las condiciones estructurales y funcionales de las escuelas. Se aplicaron las pruebas estadísticas t-Student para muestras pareadas y la prueba t de Wilcoxon. RESULTADOS : En 47 escuelas, las concentraciones promedio de CO2 estaban por encima de la concentración máxima de referencia (984 ppm) mencionada en la legislación portuguesa. Los valores máximos de concentración encontrados en el interior de las salas fueron críticos, principalmente en el otoño/invierno (5.320 ppm). Las concentraciones promedio de COV y de PM10 en el interior sobrepasaron la concentración máxima de referencia legislada en algunas escuelas. No fueron detectados valores relevantes (riesgo) de CO, HCHO, NO2, SO2 y O3. CONCLUSIONES : Hubo mayor concentración de contaminantes en el interior de las salas, en comparación con el exterior. La inadecuada ventilación está asociada con la elevada concentración de CO2 en las salas de aula. .

OBJECTIVE : To analyze the air quality in elementary schools and their structural and functional conditions. METHODS : Air quality in 51 elementary schools (81 classrooms) in the city of Coimbra, Portugal, both inside and outside of the rooms was evaluated during the four seasons, from 2010 to 2011. Temperature (T°), relative humidity (Hr), concentrations of carbon monoxide (CO), carbon dioxide (CO2), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), compounds were evaluated, as were volatile organics (VOC), formaldehyde and particulate matter (PM10), from November 2010 to February 2011 (autumn/winter) and March 2011 to June 2011 (spring/summer). A grid characterizing the structural and functional conditions of the schools was created. The statistical Student t test for paired samples and the Wilcoxon t test were applied. RESULTS : In 47 schools, the average CO2concentrations were above the maximum reference concentration (984 ppm) mentioned in Portuguese legislation. The maximum concentration values found inside the rooms were critical, especially in the fall/winter (5,320 ppm). In some schools the average concentrations of VOC and PM10within the maximum concentration exceeded the reference legislated. The values (risk) of CO, formaldehyde, NO2, SO2and O3detected were not relevant. CONCLUSIONS : There was a higher concentration of pollutants inside the rooms compared with outside. Inadequate ventilation is associated with high CO2concentration in the classroom. .

Demandas de cuidado domiciliar da criança nascida exposta ao HIV na ótica da teoria ambientalista / Demandas de cuidados en casa del niño nacido expuesto al VIH en la óptica de la teoría ambientalista / Demands of home care of children born exposed to HIV in the perspective of the environmental theory

Objetivou-se identificar as demandas de cuidado domiciliar da criança nascida exposta ao HIV, sob a perspectiva da teoria ambientalista. Trata-se de estudo qualitativo exploratório-descritivo realizado de janeiro a abril de 2011. Participaram dez mães infectadas pelo HIV, com crianças nascidas expostas ao vírus, em Fortaleza, Ceará. Constituíram-se como instrumentos de coleta de dados: câmera fotográfica descartável e digital e formulários para captação de informações em saúde associadas ao ambiente domiciliar. Os resultados foram contextualizados de acordo com a teoria e organizados em categorias: "vulnerabilidades associadas à estrutura física da moradia"; "ar intradomiciliar e peridomiciliar impuro"; "água utilizada para consumo"; "rede de esgoto e saneamento"; "iluminação e ventilação da residência". Conclui-se que o ambiente domiciliar oferece condições ambientais desfavoráveis para a criança. Urge a realização de intervenções focalizadas no ambiente domiciliar, para promover a saúde da criança nascida exposta ao HIV.

Se objetivó identificar las demandas de atención en el hogar de los niños nacidos expuestos al VIH en la perspectiva de la teoría ambientalista. Estudio cualitativo exploratorio-descriptivo realizado entre enero y abril de 2011. Participaron diez madres VIH-positivas con bebés expuestos al virus, en Fortaleza, Ceará. Fueron instrumentos de recolección de datos: cámara desechable y digital y formularios para capturar información sobre la salud asociada con el ambiente del hogar. Los resultados fueron contextualizados de acuerdo a la teoría y organizado en categorías: vulnerabilidades asociadas con la estructura física de la casa; aire intra y peridoméstico impuro; agua utilizada para el consumo; saneamiento y alcantarillado; iluminación y ventilación de la residencia. Se concluye que el hogar ofrece condiciones ambientales desfavorables para el niño. Hay necesidad de intervenciones específicas en el entorno del hogar para promover la salud de los niños nacidos expuestos al VIH.

The purpose of this study was to identify the demands of home care of children born exposed to HIV in the perspective of the environmental theory. It consists of an exploratory descriptive qualitative study, developed between January and April of 2011. Study participants were ten HIV-infected mothers with infants exposed to the virus, living in Fortaleza, Ceará. The data collection instruments included: a disposable digital camera and forms to obtain information on health associated with the home environment. Results were contextualized according to the theory and organized into the following categories: vulnerabilities associated with the physical structure of the house; contaminated intra and peridomestic air; unclean water used for drinking; sanitation and sewerage system; lighting and ventilation of the house. In conclusion, the home environment offers unfavorable environmental conditions for the child. Targeted interventions in the home environment are necessary so as to promote the health of children born exposed to HIV.

Contaminación del aire de interiores en hogares en situación de pobreza extrema en Colombia / Indoor air pollution in extremely poor Colombian households

Objetivo Caracterizar la exposición a la contaminación del aire interior por uso de combustibles sólidos en hogares en situación de pobreza extrema en Colombia. Métodos A partir de la información gubernamental oficial de hogares en situación de pobreza extrema (encuesta Red Unidos de septiembre 2012, n=1,3 millones de hogares y >5 millones de individuos) se estructuraron dos modelos de regresión logística: (i) Factores asociados al uso de combustibles sólidos para cocinar a nivel hogar, (ii) Asociación entre el uso de combustibles sólidos en el hogar y prevalencia de limitaciones de la salud a nivel individuo. Resultados Un total de 530 mil hogares en situación de pobreza extrema donde habitan 2,1 millones de colombianos, enfrentan el factor de riesgo (uso de combustibles fósiles en el hogar). La presencia del factor de riesgo está asociada a la zona rural (odds ratio-OR=19,4; intervalo de confianza al 95 %-IC95 %: 19,2-19,6), la etnia indígena (OR=2,9; IC95 %:2,9-3,0) y, de manera inversa, a la situación de desplazamiento (OR=0,6;IC95 %:0,6-0,6). La prevalencia de limitación cardiovascular y/o respiratoria, así como de limitación en visión se asociaron con la exposición. Discusión Las iniciativas que busquen mejorar la salud ambiental y calidad de vida de la población rural de mayor vulnerabilidad socio-económica del país cuentan con información de caracterización e impacto para priorizar programas tendientes a disminuir la exposición al uso de combustibles sólidos.

Objective Characterising exposure to indoor air pollution arising from solid-fuel use in extremely poor Colombian households. Methods Data from the September 2012 survey by Red Unidos (literally United Network, the Colombian government's official instrument for identifying extremely poor households: n=1.3 million households and >5 million people) was used for two logistic regression models: factors associated with solid fuel used in cooking within households and an association between exposure to solid fuel use in households and the prevalence of limitations regarding individual health. Results According to the Red Unidos data-based models, 2.1 million people living in 530,000 extremely poor households were exposed to environmental health risk (i.e. household air pollution caused by solid fuel use). Such risk was found to be related to living in rural areas (odds ratio (OR)=19.4 95 % confidence interval (95 %CI): 19.2-19.6 %), having an Indian background (OR=2.9: 2.9-3.0 95 %CI) and, inversely (i.e. when living in towns), internal displacement (OR=0.6: 0.6-0.695 %CI). The prevalence of permanent cardiovascular and respiratory limitations and limited vision were associated with exposure to indoor air pollution arising from solid fuel use. Discussion Initiatives for improving environmental health and the quality of life for extremely poor rural households in Colombia must make full use of the available characterisation data and its impact for prioritising programmes aimed at reducing exposure to solid fuel use.

Diversidade da exposição alergênica: implicações na obtenção da eficácia do controle ambiental: [revisão] / Diversity of allergen exposure: implications for the efficacy of environmental control: [review]

As doenças alérgicas, como a asma, rinite, conjuntivite alérgica e a dermatite atópica têm apresentado um aumento na sua prevalência nas últimas décadas. A relação entre exposição alergênica, sensibilização atópica e desenvolvimento de doenças alérgicas são amplamente descrita na literatura. OBJETIVO: Discutir a dificuldade no controle ambiental da exposição alergênica como parte do tratamento das doenças alérgicas. MÉTODOS: Analisar trabalhos de exposição alergênica realizados com metodologia similar na região central do Brasil, incluindo casas, hotéis, cinemas, carros, táxis, ônibus e transporte escolar. RESULTADOS: Níveis elevados dos alérgenos do grupo 1 de Dermatophagoides pteronyssinus (Der p 1) e de D. farinae (Der f 1), capazes de causar sensibilização e exacerbação de sintomas foram encontrados na maioria dos ambientes estudados em uma larga proporção das amostras, enquanto os alérgenos de animais domésticos atingiram maiores níveis em carros e veículos de transporte escolar. CONCLUSÃO: A diversidade da exposição alergênica mostra a necessidade de uma compreensão da doença alérgica pelos pacientes e familiares, e que as medidas de controle do ambiente doméstico fazem parte de uma estratégia global do tratamento das doenças alérgicas, uma vez que os indivíduos vivem em uma sociedade e não isoladas no interior de seus domicílios.

The prevalence of allergic diseases such as asthma, rhinitis, allergic conjunctivitis and atopic dermatitis has increased in the last decades. The relationship between allergen exposure, atopic sensitization and development of allergic diseases is widely described in the literature. AIM: To evaluate measures for reducing allergen exposure as part of the treatment of allergic diseases. METHODS: An analysis was made of previous studies on allergen exposure done with a similar methodology in the central region of Brazil; the study included homes, hotels, cinemas, cars, taxis, buses and scholar transportation. RESULTS: High levels of Der p 1 and Der f 1 mite allergens were found in a large proportion of the sample in most of the environments included in those studies; there were higher levels of pet allergens in cars and school transportation vehicles. CONCLUSION: The diversity of allergen exposure demonstrates the need for education about allergic diseases for patients and their families, as well as measures of reducing allergens in homes. This should be part of a global strategy of the management of allergic diseases, given that individuals live in society, not only in their houses.

Estudo comparativo de sintomas respiratórios e função pulmonar em pacientes com doença pulmonar obstrutiva crônica relacionada à exposição à fumaça de lenha e de tabaco / Comparative study of respiratory symptoms and lung function alterations in patients with chronic obstructive pulmonary disease related to the exposure to wood and tobacco smoke

OBJETIVO: Descrever e analisar sintomas respiratórios e alterações espirométricas em pacientes portadores de doença pulmonar obstrutiva crônica (DPOC), com história de exposição à fumaça de lenha e de tabaco. MÉTODOS: Foram avaliados retrospectivamente dados de 170 pacientes distribuídos em 3 grupos: 34 pacientes expostos somente à fumaça de lenha, 59 pacientes, somente à de tabaco e 77 pacientes expostos a ambas. RESULTADOS: Os grupos não diferiram quanto a idade (p = 0,225) e grau de exposição, considerando cada tipo de exposição isoladamente ou em associação (p = 0,164 e p = 0,220, respectivamente). No grupo exposto à fumaça de lenha predominou o sexo feminino.Não houve diferença entre os grupos quanto à freqüência dos sintomas respiratórios (p > 0,05), e houve predominância de grau moderado de dispnéia nos três grupos (p = 0,141). O grupo exposto à fumaça de lenha apresentou melhores percentuais da relação volume expiratório forçado no primeiro segundo/capacidade vital forçada e de volume expiratório forçado no primeiro segundo (p < 0,05). A prova broncodilatadora positiva ocorreu com maior freqüência no grupo exposto ao tabaco.O percentual de obstrução brônquica grave e muito grave foi significantemente maior no grupo exposto ao tabaco (44,1 por cento) que no grupo exposto somente à fumaça de combustão de lenha (11,8 por cento; p = 0,006). CONCLUSÕES: Os sintomas respiratórios e alterações da função pulmonar compatíveis com DPOC foram observados nos grupos expostos à fumaça de lenha. Todavia, estas alterações foram menos intensas do que as observadas nos grupos expostos ao tabaco.Este trabalho ressalta a importância de realizar-se um estudo prospectivo para avaliar o risco de DPOC associado à exposição à fumaça de lenha no Brasil assim como a necessidade de ações preventivas neste âmbito.

OBJECTIVE: To describe and analyze clinical symptoms and spirometric alterations of patients with chronic obstructive pulmonary disease (COPD) and history of exposure to wood and tobacco smoke. METHODS: We retrospectively evaluated data related to 170 patients distributed into 3 groups: 34 exposed only to wood smoke, 59 patients exposed only to tobacco smoke and 77 patients exposed to both. RESULTS: The groups did not differ significantly in terms of age (p = 0.225) or degree of exposure, considering each type of exposure in isolation or in combination (p = 0.164 and p = 0.220, respectively). Females predominated in the group exposed to wood smoke. There were no differences among the groups regarding respiratory symptoms (p > 0.05), and moderate dyspnea predominated in the three groups (p = 0.141). The group exposed to wood smoke presented higher percentages of forced expiratory volume in one second/forced vital capacity ratio and of forced expiratory volume in one second (p < 0.05). Positive results on bronchodilator testing occurred more frequently in the group exposed to tobacco smoke. The percentage of severe and extremely severe obstruction was significantly higher in the group exposed to tobacco smoke (44.1 percent) than in that exposed to wood smoke (11.8 percent; p = 0.006). CONCLUSIONS: Respiratory symptoms and pulmonary function alterations consistent with COPD were observed in the groups of patients exposed to wood smoke. However, those alterations were not as significant as the alterations observed in the groups exposed to tobacco smoke. This study emphasizes the importance of prospective studies in evaluating the risk of wood-smoke-related COPD in Brazil, as well as the need for preventive measures in this area.

Fuentes de contaminación intradomiciliaria y enfermedad respiratoria en jardines infantiles y salas cunas de Temuco y Padre Las Casas, Chile / Association between indoor contamination and respiratory diseases in children living in Temuco and Padre Las Casas, Chile

Background: Indoor air pollution, is the main cause of population exposure to polluting agents. Aim: To establish an environmental profile of indoor contamination emission sources in families of children under 5years that assist to kindergartens in Temuco and Padre Las Casas. To associate respiratory disease episodes in children with indoor contamination. Material and methods: Cross sectional analysis of 355 family groups subjected to questionnaires about indoor contamination and number of respiratory disease episodes. Results: Forty six percent of mothers or caregivers smoked, 37 percent smoked at home and 93 percent smoked one to two cigarettes per day. There was a significant association between respiratory diseases in children and drying clothes in the kitchen, using firewood for heating and the presence of humidity in the dwelling. Mothers identified as indoor contaminants the use of braziers in 76 percent of cases and firewood stoves in 24 percent. Ninety seven percent considered that these appliances were detrimental for respiratory health. Conclusions: The lack of awareness about indoor contamination among subjects of low socioeconomic status, should prompt educational campaigns to modify behaviors in their dwellings.

Papilomavirus y Factores asociados a Neoplasia Intraepitelial Cervical de Alto Grado en Cauca, Colombia / Papillomavirus and factors associated with high-risk, cervical intra-epithelial neoplasia in Cauca, Colombia

Objetivo: Evaluar el papel de los principales factores de riesgo asociados a lesiones intraepiteliales escamosas de alto grado en mujeres del Departamento del Cauca, Colombia. Metodología: Después de la firma de un consentimiento informado, las mujeres fueron encuestadas para la obtención de datos socio-demográficos y de estilo de vida. Adicionalmente, de cada mujer se obtuvo una biopsia cervical para diagnóstico histopatológico (casos) y una muestra de células exfoliadas (casos y controles) para posterior extracción de ADN y detección de papilomavirus (VPH) por reacción en cadena de la polimerasa (PCR). Un total de 98 casos y 109 controles, apareados por edad y procedencia, fueron reclutados para este estudio. Resultados: El estudio confirma la asociación entre VPH y el riesgo de neoplasia cervical (OR=19,0; IC95 por ciento=8,20-44,2). Los datos sugieren que la multiparidad (OR=4,1; IC95 por ciento=1,62-10,6) y la exposición a carcinógenos presentes en el humo de leña (OR=7,3; IC95 por ciento=3,00-19,4) son importantes co-factores de riesgo dada la presencia de VPH. Conclusiones: Estos resultados brindan información valiosa a las instituciones de salud pública para desarrollar mejores programas de promoción y prevención de neoplasia cervical.

Indoor air microbiological evaluation of offices, hospitals, industries, and shopping centers

In this study it was compared the MAS-100 and the Andersen air samplers' performances and a similar trend in both instruments was observed. It was also evaluated the microbial contamination levels in 3060 samples of offices, hospitals, industries, and shopping centers, in the period of 1998 to 2002, in Rio de Janeiro city. Considering each environment, 94.3 to 99.4 percent of the samples were the allowed limit in Brazil (750 CFU/m ). The industries' results showed more important similarity among fungi and total heterotrophs distributions, with the majority of the results between zero and 100 CFU/m . The offices' results showed dispersion around 300 CFU/m . The hospitals' results presented the same trend, with an average of 200 CFU/m . Shopping centers' environments showed an average of 300 CFU/m for fungi, but presented a larger dispersion pattern for the total heterotrophs, with the highest average (1000 CFU/m ). It was also investigated the correlation of the sampling period with the number of airborne microorganisms and with the environmental parameters (temperature and air humidity) through the principal components analysis. All indoor air samples distributions were very similar. The temperature and air humidity had no significant influence on the samples dispersion patterns.

Molds in the homes of asthmatic patients in Isparta, Turkey.

This study was planned in order to determine the fungal spores in the air of inside the homes of asthmatic patients living in Isparta (from southwest region of Turkey). The seasonal properties of mold spores in the air of homes of 24 asthmatic and 14 control subjects living in the city of Isparta over a period of one year were investigated. Viable molds were recovered from all 38 houses. Twenty different molds were isolated and identified from the indoor air of the houses in which asthmatic patients and controls lived. The most common isolated genera were Penicillium spp. (27.9%), followed by Cladosporium spp. (26.3%), Aspergillus spp. (14.7%) and Alternaria spp. (13.1%) in the indoor air of the houses of asthmatic patients. No differences in colony numbers were observed between asthmatics and control groups. The percentage of molds was higher in kitchens than other parts of the houses such as living rooms and bedrooms (p < 0.05). A seasonal variety of the fungal flora in Isparta city region was observed. It is concluded that viable molds are common in houses in Isparta. Reducing indoor molds may improve the health of individuals with fungal-induced diseases like asthma.

Investigación epidemiológica sobre niveles de plomo en la población infantil y en el medio ambiente domiciliario de Ciudad Juárez, Chihuahua, en relación con una fundición de El Paso, Texas / Epidemiologic study of lead levels in children and in the household environment in Ciudad Juárez, Chihuahua, México, and an area near a foundry in El Paso, Texas, USA

Se estudió una muestra representativa de los hogares de Ciudad Juárez y el 100 por ciento de los situados al noroeste de esa ciudad, cercanos a la fundición de El Paso, Texas, a determinar niveles de plomo en sangre por lo menos un niño de 1 a 9 años de edad de cada hogar, así como el plomo del polvo intradomiciliario y de la tierra de patios, jardines de la misma casa. Se estudió riesgo ocupacional y el de ingestión de plomo por uso de loza. Se encontró que los niveles de plomo en sangre eran mayores en los niños cuyos hogares se encontraban más próximos a la fundición. Hubo una correlación positiva entre niveles de plomo en sangre y el contenido del metal en el polvo intradomiciliario y en la tierra de sus patios o jardines, estos hechos no influyeron el riesgo ocupacional ni el uso de utensilios de loza que desprendieran plomo.

Contaminación intradomiciliaria en un sector de extrema pobreza de la comuna de La Pintana / Indoor air pollution in a zone of extreme poverty at La Pintana community, Santiago

Background: Indoor pollution can be an important risk factor for human health, considering that people spend more than 60 percent of their time in their houses. Aim: To investigate indoor pollution in a zone of extreme poverty in Metropolitan Santiago. Material and methods: During 24h, carbon monoxide (CO), sulfur dioxide (SO2), respirable particulate matter (PM10), polycyclic aromatic hydrocarbons absorbed in PM5, temperature and humidity, were measured in the interior of 24 houses in La Pintana, Santiago. Results: The higher pollutant concentrations were observed during hours when heating was used, in houses that used coal (mean PM10 250 µg/m3, CO 42 ppm, SO2 192 ppb) or firewood (mean PM10 489 µg/m3, CO 57 ppm, SO2 295 ppb). In all houses, polycyclic aromatic hydrocarbons were detected and they came from the interior of the house and not from external filtered air. Coal, firewood and cigarette smoke were important sources of carcinogenic and kerosene and gas were sources of non carcinogenic polycyclic aromatic hydrocarbons. Conclusions: In the houses studied, the population was exposed to an accumulation of highly toxic pollutants, caused by a lack of ventilation. A high relative humidity also contributed to the growth of biological pollutants

La inhalación doméstica del humo de leña y otros materiales biológicos. Un riesgo para el desarrollo de enfermedades respiratorias / Domestic inhalation of wood smoke and other biological materials: A risk for respiratory disease development

Una gran parte de la población mundial, especialmente en países en vías de desarrollo, está expuesta a contaminantes dentro del hogar, generados por fogones ineficientes que queman madera y otros biomateriales. Los niveles de contaminantes dentro de la cocina suelen ser muy altos, e incluyen sustancias tóxicas y cancerígenas. El potencial patogénico de esta exposición ha sido poco explorado. La exposición al humo de leña se ha asociado a bronquitis crónica y a obstrucción bronquial en adultos así como a las infecciones respiratorias agudas en niños. En el Instituto Nacional de Enfermedades Respiratorias de México hemos observado toda la gama de enfermedades pulmonares producidas por el tabaquismo, en personas que nunca fumaron y que estuvieron espuestas al humo de leña. De acuerdo a un estudio reciente de casos y controles realizado en nuestro instituto, el riesgo para el desarrollo de BC y de enfisema en mujeres expuestas al humo de leña es cinco veces mayor que en las no expuestas y se incrementa con la dosis. De acuerdo a mediciones que se realizaron recientemente en una comunidad rural del estado de México se encontró que, los niveles promedio de partículas suspendidas menores a 10 micras dentro de las cocinas con fogones frecuentemente rebasan los 1000 µg/m al cubo. La exposición representa potencialmente un problema de salud pública que se tendrá que tratar en el futuro próximo

Contaminación ambiental por mercurio en clínicas dentales / Environmental contamination by mercury in dental clinics

En 4 clínicas dentales de Valparaíso y Viña del Mar, Chile, se realizó un estudio con el propósito de determinar la concentración ambiental de mercurio y observar algunos factores que influyen en las variaciones de los niveles de vapor de mercurio ambiental. Se tomaron muestras de aire durante 10 días, las que posteriormente fueron analizadas por espectrofotometría de absorción atómica. Los resultados experimentales mostraron, que todas las clínicas sobrepasaron en algún día la concentración ambiental máxima permisible (CAMP) para Chile (0,04 mg de Hg/m3 de aire). En algunos casos la concentración detectada triplicó la CAMP. El factor que contribuyó a aumentar en forma considerable la CAMP, fue la manera de preparar la amalgama

A epidemiologia dos "edifícios doentes" / Epidemiology of \"sick buildings\"

O meio ambiente interno dos edifícios modernos, especialmente aqueles designados para uso comercial e administrativo, constitui nicho ecológico com seu próprio meio bioquímico, fauna e flora. Sofisticados métodos de construçäo e os novos materiais e equipamentos necessários para manter o meio ambiente interno destas estruturas fechadas produzem grande número de sub-produtos químicos e permitem o desenvolvimento de diversos microorganismos. Estes edifícios, por serem hermeticamente fechados, apresentam um dilema quanto a regulagem da umidade e temperatura do ar que circula pelos ductos, uma vez que diferentes espécies de microorganismos se desenvolvem em diferentes combinaçöes de umidade e temperatura. Se o meio ambiente interno dos edifícios fechados näo for mantido de forma adequada, pode se tornar nocivo para a saúde dos seus ocupantes. Nessas condiçöes, edifícios fechados, säo chamados de "Edifícios Doentes". Apresenta-se uma revisäo da epidemiologia das doenças ocasionadas por esses edifícios fechados, etiologia das doenças dos ocupantes, origens das substâncias tóxicas e métodos possíveis para manter um ambiente interno seguro