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题名: Characterization and cytotoxicity of PAHs in PM2.5 emitted from residential solid fuel burning in the Guanzhong Plain, China
作者: Sun, Jian1, 2;  Shen, Zhenxing1, 2;  Zeng, Yaling1;  Niu, Xinyi1;  Wang, Jinhui3;  Cao, Junji2;  Gong, Xuesong1;  Xu, Hongmei1;  Wang, Taobo1;  Liu, Hongxia1;  Yang, Liu1
通讯作者: Shen, Zhenxing
关键词: Solid fuel burning ;  Emission factors ;  PAHs ;  ROS ;  Inflammatory cytokine ;  Cytotoxicity
刊名: ENVIRONMENTAL POLLUTION
发表日期: 2018-10-01
DOI: 10.1016/j.envpol.2018.05.076
卷: 241, 期:5, 页:359-368
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The emission factors (EFs) of polycyclic aromatic hydrocarbons (PAHs) in PM2.5 were measured from commonly used stoves and fuels in the rural Guanzhong Plain, China. The toxicity of the PM2.5 also was measured using in vitro cellular tests. EFs of PAHs varied from 0.18 mg kg(-1) (maize straw charcoal burning in a clean stove) to 83.3 mg kg(-1) (maize straw burning in Heated Kang). The two largest influencing factors on PAH EFs were air supply and volatile matter proportion in fuel. Improvements in these two factors could decrease not only EFs of PAHs but also the proportion of 3-ring to 5-ring PAHs. Exposure to PM2.5 extracts caused a concentration-dependent decline in cell viability but an increase in reactive oxygen species (ROS), tumor necrosis factor alpha (TNF-alpha) and interleukin 6 (IL-6). PM2.5 emitted from maize burning in Heated Kang showed the highest cytotoxicity, and EFs of ROS and inflammatory factors were the highest as well. In comparison, maize straw charcoal burning in a clean stove showed the lowest cytotoxicity, which indicated a clean stove and fuel treatment were both efficient methods for reducing cytotoxicity of primary PM2.5. The production of these bioreactive factors were highly correlated with 3-ring and 4-ring PAHs. Specifically, pyrene, anthracene and benzo(a)anthracene had the highest correlations with ROS production (R = 0.85, 0.81 and 0.80, respectively). This study shows that all tested stoves emitted PM2.5 that was cytotoxic to human cells; thus, there may be no safe levels of exposure to PM2,5 emissions from cooking and heating stoves using solid fuels. The study may also provide a new approach for evaluating the cytotoxicity of primary emitted PM2.5 from solid fuel burning as well as other PM2.5 sources. (C) 2018 Elsevier Ltd. All rights reserved.
关键词[WOS]: POLYCYCLIC AROMATIC-HYDROCARBONS ;  CARBONACEOUS PARTICULATE MATTER ;  HOUSEHOLD BIOMASS COOKSTOVES ;  EMISSION FACTORS ;  OXIDATIVE STRESS ;  COAL COMBUSTION ;  RISK-ASSESSMENT ;  CANCER RISK ;  PARTICLES ;  STRAW
语种: 英语
WOS记录号: WOS:000440390800038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.ieecas.cn/handle/361006/5085
Appears in Collections:粉尘与环境研究室_期刊论文

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作者单位: 1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710049, Shaanxi, Peoples R China
3.Xian Childrens Hosp, Xian 710003, Shaanxi, Peoples R China

Recommended Citation:
Sun, Jian,Shen, Zhenxing,Zeng, Yaling,et al. Characterization and cytotoxicity of PAHs in PM2.5 emitted from residential solid fuel burning in the Guanzhong Plain, China[J]. ENVIRONMENTAL POLLUTION,2018,241(5):359-368.
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