典型文献
Heavy haze pollution during the COVID-19 lockdown in the Beijing-Tianjin-Hebei region,China
文献摘要：
To investigate the characteristics of particulate matter with an aerodynamic diameter less than 2.5 μm(PM2.5)and its chemical compositions in the Beijing-Tianjin-Hebei(BTH)re-gion of China during the novel coronavirus disease(COVID-19)lockdown,the ground-based data of PM2.5,trace gases,water-soluble inorganic ions,and organic and elemental carbon were analyzed in three typical cities(Beijing,Tianjin,and Baoding)in the BTH region of China from 5-15 February 2020.The PM2.5 source apportionment was established by combin-ing the weather research and forecasting model and comprehensive air quality model with extensions(WWRF-CAMx).The results showed that the maximum daily PM2.5 concentration reached the heavy pollution level(＞150 μg/m3)in the above three cities.The sum concentra-tion of SO42-,NO3-and NH4+played a dominant position in PM2.5 chemical compositions of Beijing,Tianjin,and Baoding;secondary transformation of gaseous pollutants contributed significantly to PM2.5 generation,and the secondary transformation was enhanced as the in-creased PM2.5 concentrations.The results of WRF-CAMx showed obviously inter-transport of PM2.5 in the BTH region;the contribution of transportation source decreased significantly than previous reports in Beijing,Tianjin,and Baoding during the COVID-19 lockdown;but the contribution of industrial and residential emission sources increased significantly with the increase of PM2.5 concentration,and industry emission sources contributed the most to PM2.5 concentrations.Therefore,control policies should be devoted to reducing industrial emissions and regional joint control strategies to mitigate haze pollution.
文献关键词：
中图分类号：
作者姓名：
Xin Zhang;Zhongzhi Zhang;Zhisheng Xiao;Guigang Tang;Hong Li;Rui Gao;Xu Dao;Yeyao Wang;Wenxing Wang
作者机构：
Environment Research Institute,Shandong University,Qingdao 266237,China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;China National Environmental Monitoring Centre,Beijing 100012,China
文献出处：
引用格式：
[1]Xin Zhang;Zhongzhi Zhang;Zhisheng Xiao;Guigang Tang;Hong Li;Rui Gao;Xu Dao;Yeyao Wang;Wenxing Wang-.Heavy haze pollution during the COVID-19 lockdown in the Beijing-Tianjin-Hebei region,China)[J].环境科学学报（英文版）,2022(04):170-178
A类：
Baoding,apportionment,WWRF,NH4+played
B类：
Heavy,haze,pollution,during,lockdown,Beijing,Tianjin,Hebei,China,To,investigate,characteristics,particulate,matter,aerodynamic,diameter,less,than,PM2,its,chemical,compositions,BTH,novel,coronavirus,disease,ground,data,trace,gases,water,soluble,inorganic,elemental,carbon,were,analyzed,three,typical,cities,from,February,was,established,by,combin,weather,research,forecasting,model,comprehensive,air,quality,extensions,CAMx,results,showed,that,maximum,daily,reached,heavy,level,above,sum,SO42,NO3,dominant,secondary,transformation,gaseous,pollutants,contributed,significantly,generation,enhanced,concentrations,obviously,inter,contribution,transportation,decreased,previous,reports,industrial,residential,sources,increased,industry,most,Therefore,control,policies,should,devoted,reducing,emissions,regional,joint,strategies,mitigate
AB值：
0.464345
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
