文章基本信息

标题：INFLUENCE OF AIR POLLUTION ON CHEMICAL QUALITY OF WET ATMOSPHERIC DEPOSITION: A CASE STUDY IN URMIA, IRAN
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作者：Yaghoub Hajizadeh ; Sepideh Namati ; Ali Ahmad Aghapour 等
期刊名称：Iranian Journal of health, safety andenvironment
印刷版ISSN：2345-3206
电子版ISSN：2345-5535
出版年度：2018
卷号：5
期号：1
页码：904-910
语种：English
出版社：Iranian journal ofhealth, safety andenvironment
摘要：Increased combustion of fossil fuel owing to the energy requirement is a main cause of air pollution throughout the world. Atmospheric precipitation is considered as a major water resource for indoor, municipal, industrial and agricultural uses. This study was aimed to evaluate the effect of air pollution on chemical quality of rain and snow in Urmia, a city in northwest of Iran. Sampling was performed during the wet seasons from October to March at six sampling stations in different locations of the city. Acidity, alkalinity, NO3- , SO42-, Cl- and pH contents of the collected samples were analyzed. All samples showed a pH value of more than 6.8, and lower acidity than alkalinity, therefore, the precipitations were not acidic. Maximum concentrations of SO42- and NO3- in the samples were 5 and 8.8mg/L, respectively. Chloride was varied from 1 to 11.5 mg/L with the highest measures observing in autumn. According to the results, concentrations of the analyzed parameters in wet precipitations in Urmia were within the natural ranges except chloride ions, which was higher than its common level in the atmosphere. This phenomenon may be the result of desert dusts which transfers by wind from the west border to Iran.