近10年华北背景大气PM_(2.5)中重金属健康风险及污染来源的变化

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	近10年华北背景大气PM_(2.5)中重金属健康风险及污染来源的变化
	石晓兰 3,4; 宗政 1,5; 彭辉 3,4; 张欣捷 1,5; 孙溶 1,5; 王晓平 2; 田崇国 1,5
刊名	环境科学
	2023
卷号	44 期号:10 页码:5335-5343
关键词	重金属 PM_(2.5) 来源健康风险华北背景大气
ISSN号	0250-3301
其他题名	Changes in Health Risks and Pollution Sources of Atmospheric PM_(2.5)-bound Metals in a Background Site in North China
文献子类	期刊论文
英文摘要	To explore the change features of PM_(2.5)-bound metals in a background site of North China in the past ten years,71 and 160 samples were collected from December 2011 to January 2013 (period Ⅰ) and from September 2019 to November 2021 (period Ⅱ) in Tuoji Island National Atmospheric Monitoring Station,respectively.The concentration of metals sampled was determined using ICP-MS,and the concentrations,sources,and health risks of heavy metals were compared.The results revealed that the average concentration of PM_(2.5) was (54.06 39.71) mug·m~(-3) during period Ⅱ,which was 3.53 ng·m~(-3) lower than that during period Ⅰ.The concentrations of Zn,Mn,As,Pb,and V in stage Ⅱ decreased by 54.53,172.63,0.8,79.06,and 3.81 ng·m~(-3),respectively,whereas the concentrations of Cr,Cu,Cd,and Ni increased by 2.01,5.42,3.03,and 3.55 ng·m~(-3),respectively.The PMF model results indicated that the biggest contributor to PM_(2.5)-bound metal was industrial emissions(32.32%),followed by coal combustion (27.47%),vehicle emissions (23.70%),ship emissions (9.69%),and dust sources (6.83%) during period Ⅱ.The contribution ratio of dust sources and ship emissions decreased by 20.73% and 8.83%,respectively,whereas for coal combustion and industrial emissions it increased by 2.50% and 13.52%,respectively,when compared with that during period Ⅰ.The total carcinogenic risk induced by PM_(2.5)-bound heavy metals of period Ⅱ increased,with the highest contributions by Cr and Cd.The total non-carcinogenic risk decreased,with Mn contributing the most.Therefore,in the process of air pollution control,the control of pollution sources of heavy metals such as Cr and Mn should be reinforced.
语种	中文
CSCD记录号	CSCD:7563405
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34162]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院烟台海岸带研究所,中国科学院海岸带环境过程与生态修复重点实验室,烟台264003; 2.鲁东大学资源与环境工程学院,烟台264025 3.中国海洋大学环境科学与工程学院,青岛266100; 4.中国海洋大学海洋环境与生态教育部重点实验室,青岛266100; 5.山东省海岸带环境过程重点实验室,烟台264003;
推荐引用方式 GB/T 7714	石晓兰,宗政,彭辉,等. 近10年华北背景大气PM_(2.5)中重金属健康风险及污染来源的变化[J]. 环境科学,2023,44(10):5335-5343.
APA	石晓兰.,宗政.,彭辉.,张欣捷.,孙溶.,...&田崇国.(2023).近10年华北背景大气PM_(2.5)中重金属健康风险及污染来源的变化.环境科学,44(10),5335-5343.
MLA	石晓兰,et al."近10年华北背景大气PM_(2.5)中重金属健康风险及污染来源的变化".环境科学 44.10(2023):5335-5343.