Author: Das, Manob; Das, Arijit; Sarkar, Raju; Mandal, Papiya; Saha, Sunil; Ghosh, Sasanka
Title: Exploring short term spatio-temporal pattern of PM(2.5) and PM(10) and their relationship with meteorological parameters during COVID-19 in Delhi Cord-id: ozb2typp Document date: 2021_8_6
ID: ozb2typp
Snippet: Present study aims to examine the impact of lockdown on spatio-temporal concentration of PM(2.5) and PM(10 -) categorized and recorded based on its levels during pre-lockdown, lockdown and unlock phases while noting the relationship of these levels with meteorological parameters (temperature, wind speed, relative humidity, rainfall, pressure, sun hour and cloud cover) in Delhi. To aid the study, a comparison was made with the last two years (2018 to 2019), covering the same periods of pre-lockdo
Document: Present study aims to examine the impact of lockdown on spatio-temporal concentration of PM(2.5) and PM(10 -) categorized and recorded based on its levels during pre-lockdown, lockdown and unlock phases while noting the relationship of these levels with meteorological parameters (temperature, wind speed, relative humidity, rainfall, pressure, sun hour and cloud cover) in Delhi. To aid the study, a comparison was made with the last two years (2018 to 2019), covering the same periods of pre-lockdown, lockdown and unlock phases of 2020. Correlation analysis, linear regression (LR) was used to examine the impact of meteorological parameters on particulate matter (PM) concentrations in Delhi, India. The findings showed that (i) substantial decline of PM concentration in Delhi during lockdown period, (ii) there were substantial seasonal variation of particulate matter concentration in city and (iii) meteorological parameters have close associations with PM concentrations. The findings will help planners and policy makers to understand the impact of air pollutants and meteorological parameters on infectious disease and to adopt effective strategies for future.
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