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中国浙江省 5 个城市大气颗粒物中多环芳烃的特征及健康风险评价。

Characterization and health risk assessment of PM-bound polycyclic aromatic hydrocarbons in 5 urban cities of Zhejiang Province, China.

机构信息

Zhejiang Provincial Center for Disease Prevention and Control, Binsheng Road 3399, Hangzhou, 310051, Zhejiang, China.

Hangzhou Center for Disease Prevention and Control, Mingshi Road 568, Hangzhou, Zhejiang, P.R. China.

出版信息

Sci Rep. 2019 May 13;9(1):7296. doi: 10.1038/s41598-019-43557-0.

DOI:10.1038/s41598-019-43557-0
PMID:31086237
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6513845/
Abstract

In 2015, we measured polycyclic aromatic hydrocarbons (PAHs) in atmospheric fine particulate matter (PM) collected from 5 cities in Zhejiang Province. The mean toxic equivalent quotient (TEQ) values of benzo(a)pyrene (BaP) ranged between 1.2-3.1 ng/m. The BaP-TEQ displayed seasonal trends, such that winter > spring and autumn > summer. During the winter, the most abundant individual PAHs were 4-6ring PAHs (84.04-91.65%). The median daily intake of atmospheric PAHs ranged between 2.0-7.4 ng/day for all populations, with seasonal trends identical to that of BaP-TEQ. The 95 incremental lifetime cancer risk (ILCR) values induced by PM-bound PAHs were far lower than 10 for all populations. The data suggested that the pollution levels in the 5 Zhejiang Province cities were higher than the Chinese National Ambient Air Quality Standard (NAAQS). In the future, relevant measures should be taken to control atmospheric PAHs, especially 4-6 ring PAHs. The data also revealed no obvious cancer risk for populations residing in these 5 cities of Zhejiang Province.

摘要

2015 年，我们测量了浙江省 5 个城市大气细颗粒物（PM）中多环芳烃（PAHs）的浓度。苯并（a）芘（BaP）的毒性等效系数（TEQ）值的平均值范围在 1.2-3.1ng/m3 之间。BaP-TEQ 呈现季节性趋势，冬季>春季和秋季>夏季。在冬季，最丰富的单环芳烃是 4-6 环 PAHs（84.04-91.65%）。所有人群的大气 PAHs 日均摄入量中位数在 2.0-7.4ng/天之间，与 BaP-TEQ 的季节性趋势相同。由 PM 结合的 PAHs 引起的 95%增量终生癌症风险（ILCR）值远低于所有人的 10。数据表明，浙江省 5 个城市的污染水平高于中国国家环境空气质量标准（NAAQS）。未来，应采取相关措施来控制大气 PAHs，特别是 4-6 环 PAHs。该数据还表明，居住在浙江省这 5 个城市的人群没有明显的癌症风险。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/3f3a4bef6efd/41598_2019_43557_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/98075c37a4cc/41598_2019_43557_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/4bf2f652826d/41598_2019_43557_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/12a9733e8447/41598_2019_43557_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/61e7145297aa/41598_2019_43557_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/9b84deafbe3e/41598_2019_43557_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/3f3a4bef6efd/41598_2019_43557_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/98075c37a4cc/41598_2019_43557_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/4bf2f652826d/41598_2019_43557_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/12a9733e8447/41598_2019_43557_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/61e7145297aa/41598_2019_43557_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/9b84deafbe3e/41598_2019_43557_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/505a/6513845/3f3a4bef6efd/41598_2019_43557_Fig6_HTML.jpg

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