Abstract：
:Street dusts collected from 20 locations in the Chang-Zhu-Tan (Changsha, Zhuzhou, and Xiangtan) region, Hunan, China, in May to July 2006, were investigated for sources of polycylic aromatic hydrocarbons (PAHs). The individual PAH concentrations were in the range of 10-4316 ng g(-1), and ∑PAHs(16) levels were in the range of 3,515-24,488 ng g(-1), with a mean of 8,760 ng g(-1). The high-molecular-weight PAHs (four to six rings), ranging from 47.51 to 82.11 %, with a mean of 74.79 %, were the dominant PAH compounds in almost all of the dusts. The isomer ratios suggested a rather uniform mixture of coal combustion and petroleum PAH sources. Factor analysis and multiple linear regression analysis indicate that the main sources of the 16 PAHs were coal combustion/vehicle exhaust, coking/petroleum, and plant combustion, with contribution rates of 50.9, 35.01, and 14.08, respectively. The spatial distributions of PAH concentrations were significantly related to the distribution of industries, traffic circulation, and farmland in this region.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Long Y,Dai T,Wu Qdoi
10.1007/s10661-012-2639-4subject
Has Abstractpub_date
2013-02-01 00:00:00pages
1377-90issue
2eissn
0167-6369issn
1573-2959journal_volume
185pub_type
杂志文章abstract：:Airborne particulate matter (PM) has become one of the dominant pollutants with the increasing material and energy demand due to global economic growth. The main objective of this research is to provide a comprehensive receptor level characterisation of the particulate matter collected in a city environment. Particula...
journal_title：Environmental monitoring and assessment
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更新日期：2011-07-01 00:00:00
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更新日期：1996-07-01 00:00:00
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journal_title：Environmental monitoring and assessment
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