沈阳市夏秋季节大气细颗粒物元素浓度及分布特征 Trace element concentrations and distribution of atmosph

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沈阳市夏秋季节大气细颗粒物元素浓度及分布特征

Trace element concentrations and distribution of atmospheric fine particles in the summer-fall in Shenyang

为获得沈阳市不同功能区细颗粒物元素的浓度和分布特征,于2007年8月21~9月6日,用安德森分级撞击式采样器在沈阳市4个采样点进行大气颗粒物分级采样,并用电感耦合等离子体质谱仪(ICP-MS)对PM1中50种元素进行分析.通过富集因子和经验正交函数分析,讨论了沈阳市夏秋季节细颗粒物中元素的组成及来源.结果表明,沈阳市夏秋季节PM1浓度明显比冬季低.且低于广州、北京等国内城市的浓度,但比青藏高原冰川区的浓度高1个量级以上,也高于意大利热那亚和佛罗伦萨等城市.沈阳市不同功能区PM1的污染程度为铁西工业区>象局商业居民区>科研所交通餐饮区>棋盘山风景区;富集因子和经验正交函数分析表明,除自然源外,各功能区污染来源有所不同,交通运输、道路扬尘、餐饮业和工业的排放均对PM1有重要贡献.水利论文a9DS*|2T~8Y

作 者: 洪也 周德平 马雁军 刘宁微 HONG Ye ZHOU De-ping MA Yan-jun LIU Ning-wei  
作者单位:中国气象局沈阳大气环境研究所,辽宁,沈阳,110016 
刊 名:中国环境科学  ISTIC PKU
英文刊名:CHINA ENVIRONMENTAL SCIENCE 
年,卷(期):2010 30(7) 
分类号:X511 
关键词:PM1   痕量元素   富集因子   来源   沈阳  
机标关键词:沈阳市季节大气细颗粒物元素浓度分布特征fine particles经验正交函数分析电感耦合等离子体质谱仪功能区富集因子铁西工业区大气颗粒物污染来源污染程度青藏高原交通运输佛罗伦萨分级采样城市餐饮 
基金项目:国家科研院所社会公益研究专项资金项目,国家自然科学基金资助项项目,2008年公益性行业(气象)科研专项项目 
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