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OALib Journal期刊
ISSN: 2333-9721
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泰州市区空气重金属污染的多重监测研究
DOI: 10.3969/j.issn.1000-2006.2014.03.027, PP. 139-143
Keywords: 空气污染,pm2.5,pm10,道路灰尘,苔藓植物,生物指示,泰州
Abstract:
近年来,我国频繁发生的雾霾事件引起了人们对城市空气污染的广泛关注,大气颗粒物中含有的重金属与人类呼吸系统疾病发病率以及呼吸系统的损伤具有一定的相关性。笔者对泰州市区大气颗粒物pm2.5(颗粒物直径小于2.5μm)和pm10(颗粒物直径小于10μm)、道路灰尘、活藓和藓袋中cd、cr、cu、pb、ni、zn的含量与污染特征进行了分析。结果表明,粒径最小的pm2.5中重金属浓度最高,可以作为空气重金属污染分析的最佳监测对象;活藓法测得的数据与pm10和道路灰尘测定值相接近,具有一定可靠性。污染指数分析结果表明,现阶段泰州市区cd、cu、zn污染较严重,分别达到了土壤背景值的18.86、3.54和3.15倍,其他重金属污染不严重。
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