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Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Mar+Pollut+Bull 2021 ; 171 (ä): 112739 Nephropedia Template TP
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COVID-19 restrictions and their influences on ambient air, surface water and plastic waste in a coastal megacity, Chennai, India #MMPMID34304059
Robin RS; Purvaja R; Ganguly D; Hariharan G; Paneerselvam A; Sundari RT; Karthik R; Neethu CS; Saravanakumar C; Semanti P; Prasad MHK; Mugilarasan M; Rohan S; Arumugam K; Samuel VD; Ramesh R
Mar Pollut Bull 2021[Oct]; 171 (ä): 112739 PMID34304059show ga
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 [PM(2.5) (66.5%), PM(10) (39.5%), NO(2) (94.1%), CO (29%), O(3) (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.