Assessment of particulate matter (PM) in ambient air of different settings and its associated health risk in Haripur city, Pakistan

Abstract Particulate matter (PM) is a major air pollutant causing serious health problems. The aim of the present study was to find out concentration of PM in ambient air and its associated health risk in Haripur city, Pakistan. Twenty-three samples were taken at various educational institutes, hospitals, recreational areas and industries in Haripur city. Concentration of PM2.5 (µg/m3) and PM10 (µg/m3) was measured with Youngteng YT-HPC 3000A portable PM counter. The results revealed that values of both PM2.5 and PM10 were above the permissible limits (35 µg/m3 for PM2.5 and 150 µg/m3 for PM10) set by Environmental Protection Agency Pakistan (Pak-EPA) in all the educational institutes, hospitals, recreational areas and industries investigated. Furthermore, significant (p 0.05) variation was found in the concentration of both PM2.5 and PM10 in all the educational institutes, hospitals, recreational areas, and industries studied. The concentration of PM2.5 was positively correlated with the concentration of PM10 in all the sampling sites. Therefore, from 1-14 scale standard of health index, the values of PM2.5 and PM10 exhibited that the ambient air quality of Haripur city Pakistan is under high risk. If the regulatory authorities such as Environmental Protection Agency, Health Department and Local Government monitor PM pollution in different settings of Haripur city, then a decrease can be possible in the pollution level. The remedies that can be taken to overcome the problem of ambient air pollution such as PM are plantation of trees at the sites where there are higher levels of air pollutants and use of masks on personal protection basis along with implementation of pollution control system in industries of Hattar Industrial Estate Haripur city, Pakistan.

Resumo O material particulado (MP) é um importante poluente do ar que causa sérios problemas de saúde. O objetivo do presente estudo foi descobrir a concentração de MP no ar ambiente e sua associação com o risco à saúde na cidade de Haripur, Paquistão. Vinte e três amostras foram coletadas em várias instituições de ensino, hospitais, áreas recreativas e indústrias na cidade de Haripur. A concentração de MP2,5 (µg/m3) e MP10 (µg/m3) foi medida por meio do contador de MP portátil Youngteng YT-HPC 3000A. Os resultados revelaram que os valores de MP2,5 e MP10 estavam acima dos limites permitidos (35 µg/m3 para MP2,5 e 150 µg/m3 para MP10) estabelecidos pela Agência de Proteção Ambiental do Paquistão (Pak-EPA) em todas as instituições de ensino, hospitais, áreas recreativas e indústrias investigadas. Além disso, foi encontrada variação significativa (p 0,05) na concentração de MP2,5 e MP10 em todos os locais estudados. A concentração de MP2,5 correlacionou-se positivamente com a concentração de MP10 em todos os locais de amostragem. Portanto, a partir da escala padrão 1-14 do índice de saúde, os valores de MP2,5 e MP10 mostraram que a qualidade do ar ambiente na cidade de Haripur, Paquistão, está sob alto risco. Se as autoridades reguladoras, como a Pak-EPA, o Departamento de Saúde e o governo local, monitorarem a poluição por MP em diferentes configurações da cidade de Haripur, pode ser que haja uma diminuição no nível de poluição. As medidas que podem ser tomadas para superar o problema da poluição do ar ambiente, como o MP, são o plantio de árvores nos locais onde há maiores níveis de poluentes atmosféricos, o uso de máscaras e a implantação de sistema de controle de poluição nas propriedades industriais de Hattar, na cidade Haripur, Paquistão.

Assessment of particulate matter (PM) in ambient air of different settings and its associated health risk in Haripur city, Pakistan / Avaliação de material particulado (MP) no ar ambiente de diferentes configurações e sua associação com o risco à saúde na cidade de Haripur, Paquistão

Particulate matter (PM) is a major air pollutant causing serious health problems. The aim of the present study was to find out concentration of PM in ambient air and its associated health risk in Haripur city, Pakistan. Twenty-three samples were taken at various educational institutes, hospitals, recreational areas and industries in Haripur city. Concentration of PM2.5 (µg/m3) and PM10 (µg/m3) was measured with Youngteng YT-HPC 3000A portable PM counter. The results revealed that values of both PM2.5 and PM10 were above the permissible limits (35 µg/m3 for PM2.5 and 150 µg/m3 for PM10) set by Environmental Protection Agency Pakistan (Pak-EPA) in all the educational institutes, hospitals, recreational areas and industries investigated. Furthermore, significant (p<0.05) variation was found in the concentration of both PM2.5 and PM10 in all the educational institutes, hospitals, recreational areas, and industries studied. The concentration of PM2.5 was positively correlated with the concentration of PM10 in all the sampling sites. Therefore, from 1-14 scale standard of health index, the values of PM2.5 and PM10 exhibited that the ambient air quality of Haripur city Pakistan is under high risk. If the regulatory authorities such as Environmental Protection Agency, Health Department and Local Government monitor PM pollution in different settings of Haripur city, then a decrease can be possible in the pollution level. The remedies that can be taken to overcome the problem of ambient air pollution such as PM are plantation of trees at the sites where there are higher levels of air pollutants and use of masks on personal protection basis along with implementation of pollution control system in industries of Hattar Industrial Estate Haripur city, Pakistan.

O material particulado (MP) é um importante poluente do ar que causa sérios problemas de saúde. O objetivo do presente estudo foi descobrir a concentração de MP no ar ambiente e sua associação com o risco à saúde na cidade de Haripur, Paquistão. Vinte e três amostras foram coletadas em várias instituições de ensino, hospitais, áreas recreativas e indústrias na cidade de Haripur. A concentração de MP2,5 (µg/m3) e MP10 (µg/m3) foi medida por meio do contador de MP portátil Youngteng YT-HPC 3000A. Os resultados revelaram que os valores de MP2,5 e MP10 estavam acima dos limites permitidos (35 µg/m3 para MP2,5 e 150 µg/m3 para MP10) estabelecidos pela Agência de Proteção Ambiental do Paquistão (Pak-EPA) em todas as instituições de ensino, hospitais, áreas recreativas e indústrias investigadas. Além disso, foi encontrada variação significativa (p < 0,05) na concentração de MP2,5 e MP10 em todos os locais estudados. A concentração de MP2,5 correlacionou-se positivamente com a concentração de MP10 em todos os locais de amostragem. Portanto, a partir da escala padrão 1-14 do índice de saúde, os valores de MP2,5 e MP10 mostraram que a qualidade do ar ambiente na cidade de Haripur, Paquistão, está sob alto risco. Se as autoridades reguladoras, como a Pak-EPA, o Departamento de Saúde e o governo local, monitorarem a poluição por MP em diferentes configurações da cidade de Haripur, pode ser que haja uma diminuição no nível de poluição. As medidas que podem ser tomadas para superar o problema da poluição do ar ambiente, como o MP, são o plantio de árvores nos locais onde há maiores níveis de poluentes atmosféricos, o uso de máscaras e a implantação de sistema de controle de poluição nas propriedades industriais de Hattar, na cidade Haripur, Paquistão.

Evaluation of Anxiolytic Activity of Flower Extracts of Tagetes Erecta Linn (Asteraceae) in Rats.

Tagetus erecta (Asteraceae) is a plant with diverse medicinal properties hence the present work was selected to evaluate the anxiolytic activity of aqueous and alcoholic extracts of flowers of T. erecta. Dried flower powder of T. erecta was extracted by maceration process to get alcoholic (AEFTE) and aqueous (AQEFTE) extract. Preliminary phytochemical investigations were carried out to identify various constituents present in AEFTE and AQEFTE. The LD50 studies of AEFTE and AQEFTE were conducted in mice till the highest permitted dose level of 2000 mg/Kg following Up and Down method of OECD Guidelines. From the LD50 2 doses of extract as 1/20th (low) and 1/5th (high) were selected. The anxiolytic activity of AEFTE and AQEFTE was evaluated in laboratory animal models like Elevated plus maze and Light-dark exploration models in rats. Preliminary phytochemical tests revealed that both AEFTE and AQEFTE contained glycosides, phenols, steroids, flavonoids. The LD50 studies revealed that both AEFTE and AQETE did not produced any abnormal behaviour or mortality even at the highest permissible dose of 2000 mg/Kg in mice. The Diazepam (2 mg/kg), AQEFTE and AEFTE (100, 400 mg/kg) were tested on Elevated plus maze and Light dark chamber models. After treated with AFETE and AQEFTE shows significant reduction in anxiety activity with the extracts at low and high doses.

Sero-prevalence of Hepatitis B virus infection in Balochistan Province of Pakistan

The objective was to evaluate the sero-prevalence of hepatitis B surface antigen [HBsAg] and IgM antibodies to hepatitis core antigen in Balochistan Province of Pakistan. Design of the study: a cross-sectional, population-based study. Place and time of the study: The study was conducted in Balochistan from 1[st] January 2004 to 31[st] December, 2008. The screening areas included Barkhan, Eashani, Khuzdar, Kodi Zikriani, Kohlu, Rakhni and Turbat. A total of 15,260 subjects were enrolled; 11,900 [78%] agreed to undergo screening. Fresh serum samples were tested for the presence of hepatitis B surface antigen and IgM antibodies to hepatitis B core antigen. HBsAg was detected in 1166 [9.8%] while anti-HBc IgM was found in 117 [10.0%]. HBsAg positivity was seen in 875 [12.7%] males and 291 [5.8%] females. The prevalence of hepatitis B in Balochistan varies from 3.3% in Khuzdar to 17.0% in Kodi Zikriani. It is utmost important to educate the public, to take proper measures to control the spread of infection and vaccination in order to interrupt transmission of this threatening public health problem in Balochistan province of Pakistan

Early-life risk factors for adult chronic disease: follow-up of a cohort born during 1964-1978 in an urban slum of Lahore, Pakistan.

Evidence suggests that risk of chronic diseases may be programmed during the foetal and early life of the infant. With high rates of low birthweight coupled with a rapid nutritional transition, low-income countries are facing an epidemic of chronic diseases. Follow-up of a cohort of adults born during 1964-1978 in an urban slum in Lahore, Pakistan, is presented in this paper. In 695 of these adults (mean age=29.0 years, males=56%), blood pressure, fasting blood glucose, and body mass index (BMI) were measured to assess early-life predictors of risk of chronic diseases. Sixteen percent of the study population was born with a low birthweight (<2,500 g). A significant positive association (p=0.007) was observed between birthweight and BMI; additionally, adjusting for age and gender, the association with BMI was highly significant (p=0.000). Conversely, a significant negative association (p=0.016) was observed between birthweight and adult levels of fasting plasma glucose; after adjustment for age and gender, the association was more significant (p=0.005) No association was observed between birthweight and adult blood pressure. The results suggest that low birthweight may increase later risk of impaired glucose tolerance in urban Pakistani adults. Further research in this area is warranted.

Rhodococcus equi--an emerging human pathogen in immunocompromized hosts: a report of four cases from Malaysia.

Rhodococcus equi, a recognized pathogen in horses, is emerging as a human opportunistic pathogen, especially in immunocompromized hosts. We describe four immunocompromized patients who had serious R. equi infections with an overall mortality of 75%. The natural habitat of R. equi is soil, particularly soil contaminated with animal manure. Necrotizing pneumonia is the commonest form of infection but extrapulmonary infections, such as wound infections and subcutaneous abscess, have also been described in humans. R. equi is cultured easily in ordinary non-selective media. Large, smooth, irregular colonies appear within 48 hours. It is a facultative, intracellular, nonmotile, non-spore forming, gram-positive coccobacillus, which is weakly acid-fast staining and bears a similarity to diphtheroids. It forms a salmon-colored pigment usually after 48 hours incubation. A particular characteristic of this organism is that it undergoes synergistic hemolysis with some bacteria on sheep blood agar. R. equi may be misidentified as diphtheroids, Mycobacterium species, or Nocardia. In vitro R. equi is usually susceptible to erythromycin, ciprofloxacin, vancomycin, aminoglycosides, rifampin, imipenem and meropenem. The organism can be difficult to eradicate, making treatment challenging. Increased awareness of the infection may help with early diagnosis and timely treatment.

Endemicity of malaria in Quetta

To determine the endemicity of malaria in Quetta and to evaluate the malarial disease index [DI]. Also, the various modes of presentation of malaria by the prevalent species were also assessed. A cross-sectional study. The study was conducted from January 1994 to December 1998, at the Department of Medicine, Sandeman Provincial Teaching Hospital, Quetta through the courtesy of Malaria Control Program Balochistan. A total of 2.63,018 subjects were included in the study of which there were 151210 [58%] males and 111808 [42%] females. The age range was 10-60 years. After detailed history and clinical examination, finger prick method was used for thick and thin peripheral blood smears for the diagnosis. Out of the total of 2.63,018 subjects who were screened, the positive smears were detected in 91679 [34.85%]. Malarial disease index [DI] was 0.35. P. falciparum was detected in 28166 [30.72%], P. vivax in 61313 [66.87%] and mixed infection in 2200 [2.39%]. Only two symptoms were significantly associated with malaria: fever was present in 62% of P. falciparum, 53% of P. vivax and 65% of mixed infection. Chills were present in 47% of P. falciparum, 41% of P. vivax and 49% of the mixed infection. Other symptoms including vomiting, headache, bodyaches and diarrhoea had a weaker association. Balochistan is a highly endemic malarious area. The high prevalence of infection associated with low prevalence of disease in Quetta shows epidemiologically stable malaria and that in this community malaria transmission is more endemic than epidemic

Salmonellosis in persons infected with human immunodeficiency virus: a report of seven cases from Malaysia.

Persons infected with human immunodeficiency virus (HIV) have an increased risk of salmonellosis when compared to the general population. We describe seven such patients with Salmonella bacteremia, of whom two had recurrent salmonellosis. In the latter two cases the infection was unusually severe, characterized by widespread infection, bacteremia and relapse, despite standard antimicrobial therapy. HIV-infected individuals will benefit from education on the source of Salmonella, mode of acquisition and prevention through safe food handling and food preparation practices. Because of the difficulty of eradicating Salmonella infection in patients with acquired immunodeficiency syndrome, long-term suppressive treatment with antimicrobials is warranted.

Knowledge attitude and practices regarding Crimean-Congo haemorrhagic fever among healthcare workers in Balochistan

The objective of this study was to determine the knowledge, attitude and practices regarding Crimean-Congo Haemorrhagic Fever [CCHF] among healthcare workers at a tertiary care referral hospital in Balochistan. A cross-sectional survey was conducted in April - May 2000 among the doctors, nurses and laboratory technicians of Sandeman Provincial Teaching Hospital, Quetta, Balochistan. A questionnaire was formulated which included the demographic data of the respondents and their knowledge, attitude and practices towards CCHF. A total of 235 healthcare personnel including 150[63.8%] doctors, 50[21.2%] nurses and 35[15%] laboratory technicians were interviewed during the survey. Seventy% [164] of the subjects were males while 30% [71] were females. One fifty-five [66%] of the total respondents claimed to know what CCHF was. By designation 120 [80%] of doctors, 30 [60%] of nurses and 5 [14%] of laboratory technicians had a prior knowledge about CCHF. One twenty [80%] of the doctors knew the most common presentations of CCHF. All categories of the respondents had a poor knowledge regarding the burial procedure of dead patients. This study was an indicator of the poor level of knowledge of healthcare workers regarding the clinical presentations and the modes of spread of CCHF. It is the dire need of the time to educate the healthcare workers about the common preventive measures of this disease, which has resulted in the loss of several important lives in the past in this region

Awareness of HIV and AIDS among fishermen in coastal areas of Balochistan

The aim of this study is to determine the knowledge, attitude, behaviour and practices regarding HIV/AIDS among the fishermen community in the coastal areas of Balochistan. Design: A cross-sectional survey. Place and Duration of Study: This study was conducted between September-October 2000 at Gidani, a coastal area of Balochistan. Patients and About 1000 fishermen were interviewed to assess the knowledge, attitude, behaviour and practices regarding HIV/AIDS. It was a community based survey involving the key informants' interviews and focused group discussions. There was little awareness regarding causes and prevention of HIV/AIDS in the community. While healthcare providers believe that the prevalence of HIV/AIDS is high, the community did not consider themselves at risk. Adolescents with any sexual health problems visit hakims and quacks. The community was aware of the etiology and some of the risk factors associated with AIDS, most probably due to the recent public health campaigns against the disease. Considering the suspected high prevalence of HIV/AIDS and the relative lack of knowledge, it is imperative that a public health intervention program be initiated in these areas. This must include educating not only the community but also the health workers. The Government's initiative to train community workers in reproductive health is a step in the right direction

Health ethics in Pakistan: a literature review of its present state.

National literature on ethics provides an insight into the nature and development of a dialogue on health issues within a population. This study investigated the health ethics discourse in Pakistan. The purpose was to critically reflect on the nature and level of such discussions with the aim of stimulating an interest in the ethical implications of health and medicine in developing countries. The study evaluated the literature on biomedical and health ethics published in Pakistan during 1988-1999. Overall, there is a dearth of published discourse on healthcare ethics in Pakistan. Values that are considered to stem from religious teachings predominate in discussions relating to medical ethics. A lack of effective policy and legislation concerning the ethical practice of medicine is reported to have negative effects on the profession. Research ethics has not been captured in the published papers in Pakistan. Consideration of ethical issues in health is at an early stage in the country and may reflect the situation in a large part of the developing world.