Polycyclic aromatic hydrocarbons (PAHs) in urban surface dust of Guangzhou, China: Status, sources and human health risk assessment

被引：512

作者：

Wang, Wei ^{[1
,2
]}

Huang, Min-juan ^{[1
,2
]}

Kang, Yuan ^{[1
,2
]}

Wang, Hong-sheng ^{[1
,2
]}

Leung, Anna O. W. ^{[1
,2
]}

Cheung, Kwai Chung ^{[1
,2
]}

Wong, Ming Hung ^{[1
,2
,3
]}

机构：

[1] Hong Kong Baptist Univ, Croucher Inst Environm Sci, Kowloon Tong, Hong Kong, Peoples R China

[2] Hong Kong Baptist Univ, Dept Biol, Kowloon Tong, Hong Kong, Peoples R China

[3] Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Linan, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2011年 / 409卷 / 21期

关键词：

PAHs; Urban surface dust; Health risk assessment; Source analysis; Composition profile; HONG-KONG SOILS; ROAD DUST; STREET DUST; SOURCE APPORTIONMENT; PARTICULATE MATTER; IDENTIFICATION; DISTRIBUTIONS; ATMOSPHERE; TOXICITY; MALAYSIA;

D O I：

10.1016/j.scitotenv.2011.07.030

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

Ninety-six urban surface dust samples collected from Guangzhou, a typical urban center in South China, were analyzed for 16 PAHs (2-6 rings). Sigma PAHs concentrations in the urban surface dust ranged from 0.84 to 12.3 mu g/g with a mean of 4.80 mu g/g. High molecular weight compounds (4-6 rings) contributed to 62 to 94% of Sigma PAHs mass in the surface dust samples. Four hotspots with highest Sigma PAHs were identified via kriging prediction mapping, representing the highly-urbanized regions: central downtown, highway and industrial area. Two major origins of PAHs inputs to urban surface dust were identified as vehicle emissions (51.9%) and coal combustion (26.8%). The 95% UCL of Incremental Lifetime Cancer Risk (ILCR) due to human exposure to urban surface dust PAHs in central South China was 3.03 x 10(-6) for children and 2.92 x 10(-6) for adults. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4519 / 4527

页数：9

共 39 条

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