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首页> 外文期刊>Natural Hazards >Statistical evaluation of PM10 and distribution of PM1, PM2.5, and PM10 in ambient air due to extreme fireworks episodes (Deepawali festivals) in megacity Delhi
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Statistical evaluation of PM10 and distribution of PM1, PM2.5, and PM10 in ambient air due to extreme fireworks episodes (Deepawali festivals) in megacity Delhi

机译:对特大城市德里发生的极端烟花事件(Deepawali节)造成的PM10的统计评估以及周围空气中PM1,PM2.5和PM10的分布

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摘要

Temporal variation of PM10 using 2-year data (January, 2007-December, 2008) of Delhi is presented. PM10 varied from 42 to 200 mu g m(-3) over January to December, with an average 114.1 +/- A 81.1 mu g m(-3). They are comparable with the data collected by Central Pollution Control Board (National Agency which monitors data over the entire country in India) and are lower than National Ambient Air Quality (NAAQ) standard during monsoon, close to NAAQ during summer but higher in winter. Among CO, NO2, SO2, rainfall, temperature, and wind speed, PM10 shows good correlation with CO. Also, PM10, PM2.5, and PM1 levels on Deepawali days when fireworks were displayed are presented. In these festive days, PM10, PM2.5, and PM1 levels were 723, 588, and 536 mu g m(-3) in 2007 and 501, 389, and 346 mu g m(-3) in 2008. PM10, PM2.5, and PM1 levels in 2008 were 1.5 times lower than those in 2007 probably due to higher mixing height (446 m), temperature (23.8A degrees C), and winds (0.36 ms(-1)).
机译:介绍了使用德里的2年数据(2007年1月至2008年12月)得出的PM10的时间变化。 PM10在1月到12月之间从42到200μg m(-3)不等,平均为114.1 +/- A 81.1μg m(-3)。它们可与中央污染控制委员会(监视印度全国数据的国家机构)收集的数据相媲美,并且在季风期间低于国家环境空气质量(NAAQ)标准,夏季接近NAAQ,冬季更高。在CO,NO2,SO2,降雨,温度和风速中,PM10与CO有很好的相关性。此外,还显示了燃放烟火的Deepawali日的PM10,PM2.5和PM1水平。在这些喜庆的日子里,2007年的PM10,PM2.5和PM1水平分别为723、588和536 mu gm(-3),2008年分别为501、389和346 mu gm(-3)。PM10,PM2.5和2008年的PM1水平比2007年降低了1.5倍,这可能是由于更高的混合高度(446 m),温度(23.8A摄氏度)和风力(0.36 ms(-1))。

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