兰州主城区大气颗粒物质量浓度及健康风险

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Abstract Sampling at five sampling sites of main urban district of Lanzhou City was conducted from March 23 to 29 and December 15 to 21, 2013, and eight samples were collected at each sampling site every day, with 560valid samples in total. Then laboratory analysis and heavy metals health risk assessment were conducted. Results showed that 5.8~10.0 μm (spring and winter), 1.1~3.3μm (spring) and 0.65~3.3μm (winter) of particulate matters in ≤ 10μm of particulate matters were dominant in main urban district of Lanzhou City. Pb had the maximum mass concentration in PM_3.3-4.7(primary bronchus), and they were respectively 0.2352μg/m³ in spring and 0.2177μg/m³ in winter. As a kind of carcinogenic heavy metal, Cd was detected in PM_9.0~5.8 and PM_4.7~1.1. Noncarcinogenic risk values (HZ) of children, adult men and adult women were respectively 0.842, 0.360, 0.345 in spring and 0.842, 0.326, 0.361 in winter, which was less than 1, without noncarcinogenic risk. Moreover, carcinogenic risk value RIS was within the range of 10^-6~10^-4, without carcinogenic risk. But children's RIS values were higher, which affected children's health, and it should be paid attention to by social groups.

Key words： particle size atmospheric particulate matter main urban district of Lanzhou City mass concentration health risk

Received: 09 June 2017

PACS:

X513

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	Articles by authors
	CHENG Hui-bo
	WANG Nai-ang
	LI Xiao-hong
	GAO Xiang
	LI Yuan
	YU Teng-fei

Cite this article:

CHENG Hui-bo,WANG Nai-ang,LI Xiao-hong等. Mass concentration and health risk of atmospheric particulate matter in main urban district of Lanzhou[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(1): 348-360.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2018/V38/I1/348

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