Variations of emission characterization of PAHs emitted from different utility boilers of coal-fired power plants and risk assessment related to atmospheric PAHs
Wang, Ruwei1,2; Liu, Guijian1,2; Zhang, Jiamei1
2015-12-15
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号538期号:2015页码:180-190
文章类型Article
摘要

Coal-fired power plants (CFPPs) represent important source of atmospheric PAHs, however, their emission characterization are still largely unknown. In this work, the concentration, distribution and gas-particle partitioning of PM10- and gas-phase PAHs in flue gas emitted from different coal-fired utility boilers were investigated. Moreover, concentration and distribution in airborne PAHs from different functional areas of power plants were studied. People's inhalatory and dermal exposures to airborne PAHs at these sites were estimated and their resultant lung cancer and skin cancer risks were assessed. Results indicated that the boiler capacity and operation conditions have significant effect on PAH concentrations in both PM10 and gas phases due to the variation of combustion efficiency, whereas they take neglected effect on PAH distributions. The wet flue gas desulphurization (WFGD) takes significant effect on the scavenging of PAH in both PM10 and gas phases, higher scavenging efficiency were found for less volatile PAHs. PAH partitioning is dominated by absorption into organic matter and accompanied by adsorption onto PM10 surface. In addition, different partitioning mechanism is observed for individual PAHs, which is assumed arising from their chemical affinity and vapor pressure. Risk assessment indicates that both inhalation and dermal contact greatly contribute to the cancer risk for CFPP workers and nearby residents. People working in workshop are exposed to greater inhalation and dermal exposure risk than people living in nearby vicinity and working office. (C) 2015 Elsevier B.V. All rights reserved.

关键词Pahs Pm10 And Gas Phase Source Assessment Phase Partitioning Risk Assessment
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2015.08.043
关键词[WOS]Polycyclic Aromatic-hydrocarbons ; Spray Dryer Ash ; Organic-compounds ; Size Distribution ; Urban Atmosphere ; Lung-cancer ; Dna-adducts ; South China ; Fly-ash ; Gas
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000363348900019
出版者ELSEVIER SCIENCE BV
引用统计
被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9232
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Liu, Guijian
作者单位1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle & Environm, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Shanxi, Peoples R China
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Wang, Ruwei,Liu, Guijian,Zhang, Jiamei. Variations of emission characterization of PAHs emitted from different utility boilers of coal-fired power plants and risk assessment related to atmospheric PAHs[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2015,538(2015):180-190.
APA Wang, Ruwei,Liu, Guijian,&Zhang, Jiamei.(2015).Variations of emission characterization of PAHs emitted from different utility boilers of coal-fired power plants and risk assessment related to atmospheric PAHs.SCIENCE OF THE TOTAL ENVIRONMENT,538(2015),180-190.
MLA Wang, Ruwei,et al."Variations of emission characterization of PAHs emitted from different utility boilers of coal-fired power plants and risk assessment related to atmospheric PAHs".SCIENCE OF THE TOTAL ENVIRONMENT 538.2015(2015):180-190.
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