Characterization of PM2.5/PM2.5-10 and source tracking in the juncture belt between urban and rural areas of Beijing

被引：32

作者：

Wang HaiLin ^{[1
]}

Zhou YuMin ^{[1
]}

Zhuang YaHui ^{[1
]}

Wang XiaoKe ^{[1
]}

Hao ZhengPing ^{[1
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2009年 / 54卷 / 14期

关键词：

PM2.5-10; PM2.5; source apportionment; electronic waste pollution; POLYCYCLIC AROMATIC-HYDROCARBONS; POSITIVE MATRIX FACTORIZATION; PARTICULATE AIR-POLLUTION; SOURCE APPORTIONMENT; TRACE-ELEMENTS; AMBIENT AIR; HONG-KONG; PM2.5; CHINA; AEROSOL;

D O I：

10.1007/s11434-009-0021-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Coarse (PM2.5-10) and fine (PM2.5) atmospheric particulate samples were collected in summer and winter during 2005-2007 in the juncture belt between urban and rural areas of Beijing. Elements, ions, organic/elemental carbon (OC/EC) and polynuclear aromatic hydrocarbons (PAHs) were determined to obtain some latest information about the particulate pollution in the juncture belt of Beijing. Particulate matter levels at this site were high as compared with the levels at other sampling sites in Beijing. Pollution elements, secondary ions and PAHs were enriched in fine particles rather than in coarse particles. An obvious seasonal variation of the chemical composition of PM was observed. Source apportionment results showed that secondary components were the largest mass contributor of PM2.5, accounting for 28%; whereas soil-related sources were the largest contributor of PM2.5-10, explaining about 49% of the total mass. The abnormal levels of soil heavy metals at the electronic waste disassembly site in the upwind villages suggested the potential impact of such activities to the environment.

引用

页码：2506 / 2515

页数：10

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