Volume 14, Issue 2 (7-2018)
J Health Syst Res 2018, 14(2): 244-251 |
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Najafi M, Yadegarfar G, Ebrahimpour K, Pourzamani H. Determination of Benzene, Toluene, Ethylbenzene, and Xylene Composition (BTEX) in Indoor and Outdoor Environment in High Schools of Isfahan and Chadegan Cities, Iran, in Year 2016. J Health Syst Res 2018; 14 (2) :244-251
URL: http://hsr.mui.ac.ir/article-1-1014-en.html
URL: http://hsr.mui.ac.ir/article-1-1014-en.html
1- MSc Student, Student Research Committee AND Environment Research Center AND Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
2- Associate Professor, Cancer Prevention Research Center AND Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
3- Assistant Professor, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
4- Associate Professor, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease AND Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
2- Associate Professor, Cancer Prevention Research Center AND Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
3- Assistant Professor, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
4- Associate Professor, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease AND Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
Abstract: (1857 Views)
Background: Among the volatile organic compounds, benzene, toluene, ethylbenzene, and xylene compounds (BTEX) are important as air pollutants that have harmful effect for health even at very low concentrations. The main source of these compounds is the exhausted gases from vehicles exhaust. The purpose of this study was to measure BTEX compounds in outdoor and indoor environment of 4 high schools located in two districts of Isfahan City and two districts of Chadegan City, Iran.Methods: Samples of air from inside and outside the schools were collected by individual sampling pumps using active carbon tubes. Then, BTEX compounds were extracted using solvent CS2, and measured using mass spectrometric gas chromatography (GC-MS).Findings: The average concentration of BTEX compounds in Isfahan City was higher than Chadegan City. Moreover, the concentration of BTEX compounds in Isfahan region 2 (Imam Hossein Square) was higher than zone 1 (Chahar Bagh Khaju), and the highest and lowest concentrations among the BTEX components were respectively in relation to toluene and ethylbenzene. There was no significant difference between indoor/outdoor ratios in two regions. There was no significant relationship between the indoor and outdoor concentrations of BTEX compounds in two cities and two regions, which showed that the indoor environment was contaminated by internal resources.Conclusion: Based on the results, the city of Isfahan was more polluted then Chadegan City. Moreover, region 2 in Isfahan was more polluted than region 1. So that the pollution is more related to external sources such as traffic.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2018/07/15 | Published: 2018/07/15
Received: 2020/07/16 | Accepted: 2018/07/15 | Published: 2018/07/15
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