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Evaluation of Mashhad City Air Quality based on Air Quality Index (AQI), 2015

Document Type : Research article

Authors

1 Lecturer, Department of Occupational Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran.

2 PhD Climatology, manager of Environment Pollution Monitoring Center of Mahhad, Mashhad, Iran.

3 Associate Professor, Department of Environmental Health Engineering, Health Science Research Center, School of Public Health, Mashhad University of Medical Sciences, Mashhad, Iran.

4 Lecturer, Department of Environmental Health Engineering, School of Health, Gonabad University of Medical Sciences, Gonabad, Iran.

5 M.Sc. Department of Environmental Health Engineering , School of Health, Gonabad University of Medical Sciences, Gonabad, Iran.

Abstract

Background and Objective: Air pollution is one of the current concerns. Human health has been faced with serious risks due to air pollution as a consequence of urbanization. Continuous monitoring of air quality to determine pollutants and identify their emissions sources are considered as the key strategies for air pollution control. The main objective of this study was evaluation of Mashhad air quality and determination of responsible pollutants in 2015.
Materials and Methods: In this cross-sectional study, the instantaneous concentrations of air pollutants including O3, CO, SO2, NO2, PM2.5 and PM10 were measured at the three stations of Mashhad during 2015-2016. Based on Air Quality Index (AQI), Mashhad air quality was classified in groups of good, moderate, unhealthy for the sensitive people, unhealthy, very unhealthy and dangerous.
Results: The results of the air quality index indicated that the air quality in 46 days was exceeded the standard limit in Mashhad in 2015-2016. The air quality category included 12.5% days unhealthy for sensitive groups, 74.5% days health.
Conclusion: In this study, PM2.5 was determined as the main responsible pollutant in non-standard conditions of Mashhad air. Optimizing public transportation, considering environmental standards at the urban transportation management and Launch intelligent traffic control are the most appropriate strategies proposed to control Mashhad air pollution.

Keywords

References
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Journal of Research in Environmental Health
Volume 2, Issue 3 - Serial Number 7
December 2016
Pages 228-236
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