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COVID-19 restrictions and their influences on ambient air, surface water and plastic waste in a coastal megacity, Chennai, India
Marine Pollution Bulletin ( IF 5.3 ) Pub Date : 2021-07-21 , DOI: 10.1016/j.marpolbul.2021.112739
R S Robin 1 , R Purvaja 1 , D Ganguly 1 , G Hariharan 1 , A Paneerselvam 1 , R T Sundari 1 , R Karthik 1 , C S Neethu 1 , C Saravanakumar 1 , P Semanti 1 , M H K Prasad 1 , M Mugilarasan 1 , S Rohan 1 , K Arumugam 1 , V D Samuel 1 , R Ramesh 1
Affiliation  

Anthropogenic activities experienced a pause due to the nationwide lockdown, imposed to contain the rapid spread of COVID-19 in the third week of March 2020. The impacts of suspension of industrial activities, vehicular transport and other businesses for three months (25 March-30 June) on the environmental settings of Chennai, a coastal megacity was assessed. A significant reduction in the key urban air pollutants [PM2.5 (66.5%), PM10 (39.5%), NO2 (94.1%), CO (29%), O3 (45.3%)] was recorded as an immediate consequence of the reduced anthropogenic activities. Comparison of water quality of an urban river Adyar, between pre-lockdown and lockdown, showed a substantial drop in the dissolved inorganic N (47%) and suspended particulate matter (41%) during the latter period. During the pandemic, biomedical wastes in India showed an overall surge of 17%, which were predominantly plastic. FTIR-ATR analysis confirmed the polymers such as polypropylene (25.4%) and polyester (15.4%) in the personal protective equipment.



中文翻译:


印度钦奈沿海大城市的 COVID-19 限制及其对环境空气、地表水和塑料废物的影响



由于 2020 年 3 月第三周为遏制 COVID-19 快速传播而实施的全国封锁,人类活动暂停。工业活动、车辆运输和其他业务暂停三个月(3 月 25 日至 30 日)的影响六月)对沿海特大城市钦奈的环境设置进行了评估。直接后果是主要城市空气污染物 [PM 2.5 (66.5%)、PM 10 (39.5%)、NO 2 (94.1%)、CO (29%)、O 3 (45.3%)] 显着减少人类活动的减少。比较城市河流阿迪亚尔封城前和封城期间的水质,封城后溶解性无机氮(47%)和悬浮颗粒物(41%)大幅下降。疫情期间,印度的生物医学废物总体激增 17%,其中主要是塑料。 FTIR-ATR 分析证实了个人防护装备中含有聚丙烯 (25.4%) 和聚酯 (15.4%) 等聚合物。

更新日期:2021-07-23
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