典型文献
COVID-19 strict lockdown impact on urban air quality and atmospheric temperature in four megacities of India
文献摘要：
COVID-19 pandemic has forced to lockdown entire India starting from 24th March 2020 to 14th April 2020(first phase),extended up to 3rd May 2020(second phase),and further extended up to 17th May 2020(third phase)with limited relaxation in non-hotspot areas.This strict lockdown has severely cur-tailed human activity across India.Here,aerosol concentrations of particular matters(PM)i.e.,PM10,PM2.5,carbon monoxide(CO),nitrogen dioxide(NO2),sulphur dioxide(SO2),ammonia(NH3)and ozone(03),and associated temperature fluctuation in four megacities(Delhi,Mumbai,Kolkata,and Chennai)from different regions of India were investigated.In this pandemic period,air temperature of Delhi,Kolkata,Mumbai and Chennai has decreased about 3℃,2.5℃,2℃ and 2℃ respectively.Compared to previous years and pre-lockdown period,air pollutants level and aerosol concentration(-41.91％,-37.13％,-54.94％and-46.79％respectively for Delhi,Mumbai,Kolkata and Chennai)in these four megacities has improved drastically during this lockdown period.Emission of PM2.5 has experienced the highest decrease in these megacities,which directly shows the positive impact of restricted vehicular movement.Restricted emissions produce encouraging results in terms of urban air quality and temper-ature,which may encourage policymakers to consider it in terms of environmental sustainability.
文献关键词：
中图分类号：
作者姓名：
Subodh Chandra Pal;Indrajit Chowdhuri;Asish Saha;Manoranjan Ghosh;Paramita Roy;Biswajit Das;Rabin Chakrabortty;Manisa Shit
作者机构：
Department of Geography,The University of Burdwan,Bardhaman,713104,West Bengal,India;Center for Rural Development and Innovative Sustainable Technology,Indian Institute of Technology Kharagpur,West Bengal,721302,India;India Smart Cities Fellow,National Institute of Urban Affairs,New Delhi,110003,India;Department of Geography,Raiganj University,Raiganj,Uttar Dinajpur,733134,West Bengal,India
文献出处：
引用格式：
[1]Subodh Chandra Pal;Indrajit Chowdhuri;Asish Saha;Manoranjan Ghosh;Paramita Roy;Biswajit Das;Rabin Chakrabortty;Manisa Shit-.COVID-19 strict lockdown impact on urban air quality and atmospheric temperature in four megacities of India)[J].地学前缘（英文版）,2022(06):279-290
A类：
Mumbai,Chennai
B类：
lockdown,impact,urban,air,quality,atmospheric,temperature,four,megacities,India,pandemic,forced,entire,starting,from,24th,March,14th,April,first,phase,extended,up,3rd,May,second,further,17th,third,limited,relaxation,hotspot,areas,This,severely,cur,tailed,human,activity,across,Here,aerosol,concentrations,particular,matters,PM10,PM2,carbon,monoxide,nitrogen,dioxide,NO2,sulphur,SO2,ammonia,NH3,ozone,associated,fluctuation,Delhi,Kolkata,different,regions,were,investigated,this,period,decreased,about,respectively,Compared,previous,years,pollutants,level,these,improved,drastically,during,Emission,experienced,highest,which,directly,shows,positive,restricted,vehicular,movement,Restricted,emissions,produce,encouraging,results,terms,may,encourage,policymakers,consider,environmental,sustainability
AB值：
0.538863
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。
