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首页> 外文期刊>Human and ecological risk assessment >Study of PM_(10) , PM_(2.5) , and PM_1 levels in during dust storms and local air pollution events in urban and rural sites in Tehran
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Study of PM_(10) , PM_(2.5) , and PM_1 levels in during dust storms and local air pollution events in urban and rural sites in Tehran

机译：德黑兰城乡地区沙尘暴和局部空气污染事件中PM_（10），PM_（2.5）和PM_1含量的研究

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摘要

The aim of this study is to survey the PM10, PM2.5, and PM1 concentrations in rural and urban areas in Tehran province during cold, warm and dust storm days from December 22, 2016 to June 5, 2017 using Grimm Model aerosol spectrometer. During the study period, daily PM10, PM2.5, and PM1 concentrations ranged from 27.2 to 244.96, 8.4 to 77.9, and 6.5 to 56.8 mg/m(3) in urban sites, and 22.8 to 286.4, 6 to 41.1, and 2.1 to 20.2 mg/m(3) in rural parts, respectively. Particularly, both daily WHO limits for outdoor PM10 (50.0 mg/m(3)) and PM2.5 (25.0 mg/m(3)) exceeded in 95% and 83% of the outdoor measurements in winter and 82% and 58% in total sampled days in urban site, respectively. The 24-h average PM10 and PM2.5 concentrations also exceeded by 59% and 18% in winter and by 36% and 14% of all sampling days in rural site, respectively. During the dust storm, the 24-h average PM10, PM2.5, and PM1 concentrations were, respectively 4.7, 2, and 1.96 times higher than those in urban site and 2, 1.7, and 1.3 times more than those in rural site in all sampled days.
机译：这项研究的目的是使用Grimm模型气溶胶光谱仪在2016年12月22日至2017年6月5日的寒冷，温暖和沙尘暴天气期间调查德黑兰省农村和城市地区PM10，PM2.5和PM1的浓度。在研究期间，城市地区的每日PM10，PM2.5和PM1浓度范围分别为27.2至244.96、8.4至77.9和6.5至56.8 mg / m（3），以及22.8至286.4、6至41.1和2.1在农村地区分别降至20.2 mg / m（3）。尤其是，室外的PM10（50.0 mg / m（3））和PM2.5（25.0 mg / m（3））的每日WHO限值在冬季室外测量的95％和83％以及82％和58％都超过了分别在市区采样的总天数。冬季的24小时平均PM10和PM2.5浓度也分别超过了59％和18％，以及农村地区所有采样日的36％和14％。在沙尘暴期间，24小时的平均PM10，PM2.5和PM1浓度分别比城市地区高4.7、2和1.96倍，分别比农村地区高2、1.7和1.3倍。所有采样日。

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