典型文献
Response of PM2.5-bound elemental species to emission variations and associated health risk assessment during the COVID-19 pandemic in a coastal megacity
文献摘要：
The coronavirus(COVID-19)pandemic is disrupting the world from many aspects.In this study,the impact of emission variations on PM2.5-bound elemental species and health risks associated to inhalation exposure has been analyzed based on real-time measurements at a remote coastal site in Shanghai during the pandemic.Most trace elemental species de-creased significantly and displayed almost no diel peaks during the lockdown.After the lockdown,they rebounded rapidly,of which V and Ni even exceeded the levels before the lockdown,suggesting the recovery of both inland and shipping activities.Five sources were identified based on receptor modeling.Coal combustion accounted for more than 70％of the measured elemental concentrations before and during the lockdown.Shipping emissions,fugitive/mineral dust,and waste incineration all showed elevated contributions after the lockdown.The total non-carcinogenic risk(HQ)for the target elements exceeded the risk threshold for both children and adults with chloride as the predominant species contribut-ing to HQ.Whereas,the total carcinogenic risk(TR)for adults was above the acceptable level and much higher than that for children.Waste incineration was the largest contributor to HQ,while manufacture processing and coal combustion were the main sources of TR.Lock-down control measures were beneficial for lowering the carcinogenic risk while unexpect-edly increased the non-carcinogenic risk.From the perspective of health effects,priorities of control measures should be given to waste incineration,manufacture processing,and coal combustion.A balanced way should be reached between both lowering the levels of air pollutants and their health risks.
文献关键词：
中图分类号：
作者姓名：
Guochen Wang;Kan Huang;Qingyan Fu;Jia Chen;Juntao Huo;Qianbiao Zhao;Yusen Duan;Yanfen Lin;Fan Yang;Wenjie Zhang;Hao Li;Jian Xu;Xiaofei Qin;Na Zhao;Congrui Deng
作者机构：
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3),Department of Environmental Science and Engineering,Fudan University,Shanghai 200433,China;IRDR ICoE on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health,Fudan University,Shanghai 200433,China;Institute of Eco-Chongming(IEC),Shanghai 202162,China;Shanghai Environmental Monitoring Center,Shanghai 200030,China;Pudong New District Environmental Monitoring Station,Shanghai 200122,China;Chinese Research Academy of Environmental Sciences,Beijing 100012,China
文献出处：
引用格式：
[1]Guochen Wang;Kan Huang;Qingyan Fu;Jia Chen;Juntao Huo;Qianbiao Zhao;Yusen Duan;Yanfen Lin;Fan Yang;Wenjie Zhang;Hao Li;Jian Xu;Xiaofei Qin;Na Zhao;Congrui Deng-.Response of PM2.5-bound elemental species to emission variations and associated health risk assessment during the COVID-19 pandemic in a coastal megacity)[J].环境科学学报（英文版）,2022(12):115-127
A类：
contribut,unexpect
B类：
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AB值：
0.53549
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