Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)

The cement factories in urban areas can affect the air quality of cities due to the variety of pollutants emitted from cement production processes. In the present study, the impacts of the Khazar cement factory and two transportation axes between Guilan and Qazvin provinces were investigated on the...

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Autores principales:	Sima Farivar Ghaziani, Ali Ahmadi Orkomi, Mohammad Ali Rajabi
Formato:	article
Lenguaje:	EN
Publicado:	University of Guilan 2021
Materias:	cement factory air pollutant passive samplers wrf aermod Environmental sciences GE1-350 Science Q
Acceso en línea:	https://doaj.org/article/1e75eaae119d4cb68a27d64744fb4471
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spelling	oai:doaj.org-article:1e75eaae119d4cb68a27d64744fb44712021-12-02T20:25:58ZGaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)1735-30331735-386610.22124/cjes.2021.5138https://doaj.org/article/1e75eaae119d4cb68a27d64744fb44712021-10-01T00:00:00Zhttps://cjes.guilan.ac.ir/article_5138_c9c17c1ac5366605316d5c85e6a4ad61.pdfhttps://doaj.org/toc/1735-3033https://doaj.org/toc/1735-3866The cement factories in urban areas can affect the air quality of cities due to the variety of pollutants emitted from cement production processes. In the present study, the impacts of the Khazar cement factory and two transportation axes between Guilan and Qazvin provinces were investigated on the air quality of Lowshan in Guilan Province, Iran in 2019. Due to the lack of suitable meteorological data for dispersion modeling, the WRF model was used to predict the meteorological parameters. The pollutants dispersion modeling was conducted by AERMOD software and the accuracy of results was confirmed by field measurements of NO2 obtained by passive samplers. The CO and NO2 dispersion modeling results showed that the air quality of Lowshan is in an acceptable situation compared to the ambient air quality standards. So that, the maximum one-hour concentration of NO2 in most residential areas was lower than the ambient standard, and only in small parts of the areas close to line sources, the concentration value was close to the standard limits. The maximum value of annually-averaged concentration of NO2 and the maximum one-hour concentration of CO were 17 ppb and 2.5 ppm, respectively, which are much lower than the clean air standards. Further investigation showed that in the cold weather seasons, due to the less vertical displacement of air and the decrease in the boundary layer height, the concentration of pollutants in the urban environment is higher than that in the warm weather seasons. Considering the night and day time wind roses showed that despite the existence of valley-mountain structure in the city, the air quality of the city is not affected by the mountain and valley breezes and also night and day wind roses do not follow the trend of these breezes.Sima Farivar GhazianiAli Ahmadi OrkomiMohammad Ali RajabiUniversity of Guilanarticlecement factoryair pollutantpassive samplerswrfaermodEnvironmental sciencesGE1-350ScienceQENCaspian Journal of Environmental Sciences , Vol 19, Iss 4, Pp 649-660 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cement factory air pollutant passive samplers wrf aermod Environmental sciences GE1-350 Science Q
spellingShingle	cement factory air pollutant passive samplers wrf aermod Environmental sciences GE1-350 Science Q Sima Farivar Ghaziani Ali Ahmadi Orkomi Mohammad Ali Rajabi Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)
description	The cement factories in urban areas can affect the air quality of cities due to the variety of pollutants emitted from cement production processes. In the present study, the impacts of the Khazar cement factory and two transportation axes between Guilan and Qazvin provinces were investigated on the air quality of Lowshan in Guilan Province, Iran in 2019. Due to the lack of suitable meteorological data for dispersion modeling, the WRF model was used to predict the meteorological parameters. The pollutants dispersion modeling was conducted by AERMOD software and the accuracy of results was confirmed by field measurements of NO2 obtained by passive samplers. The CO and NO2 dispersion modeling results showed that the air quality of Lowshan is in an acceptable situation compared to the ambient air quality standards. So that, the maximum one-hour concentration of NO2 in most residential areas was lower than the ambient standard, and only in small parts of the areas close to line sources, the concentration value was close to the standard limits. The maximum value of annually-averaged concentration of NO2 and the maximum one-hour concentration of CO were 17 ppb and 2.5 ppm, respectively, which are much lower than the clean air standards. Further investigation showed that in the cold weather seasons, due to the less vertical displacement of air and the decrease in the boundary layer height, the concentration of pollutants in the urban environment is higher than that in the warm weather seasons. Considering the night and day time wind roses showed that despite the existence of valley-mountain structure in the city, the air quality of the city is not affected by the mountain and valley breezes and also night and day wind roses do not follow the trend of these breezes.
format	article
author	Sima Farivar Ghaziani Ali Ahmadi Orkomi Mohammad Ali Rajabi
author_facet	Sima Farivar Ghaziani Ali Ahmadi Orkomi Mohammad Ali Rajabi
author_sort	Sima Farivar Ghaziani
title	Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)
title_short	Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)
title_full	Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)
title_fullStr	Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)
title_full_unstemmed	Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)
title_sort	gaseous air pollutants dispersion emitted from point and line sources by coupling wrf-aermod models (case study: lowshan, guilan province, iran)
publisher	University of Guilan
publishDate	2021
url	https://doaj.org/article/1e75eaae119d4cb68a27d64744fb4471
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Gaseous air pollutants dispersion emitted from point and line sources by coupling WRF-AERMOD models (Case study: Lowshan, Guilan Province, Iran)

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