id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-322267-pbj819vk	Gautam, Sneha	COVID-19: air pollution remains low as people stay at home	2020-05-21		.txt	text/plain	1288	71	54	The National Aeronautics and Space Administration (NASA) and European Space Agency (ESA) released air pollution data for Asian and European countries to assess the significant changes in air quality. The main objective of the study is to compare the air quality data released by international agencies before and after the novel coronavirus pandemic. The ESA collects air quality data by using TROPOMI instruments using Sentinel -5P satellite during COVID-19 lockdowns. The results (i.e., 70% and 20-30% NO 2 reduction in India and China, respectively) indicate that there are significant changes in the level of NO 2 identified in Asian countries due to COVID-19. In this study, the variation of NO 2 which was collected from the satellite (Sentinel -5P) was used to indicate the significant reduction in the level of NO 2 in Asian and European countries due to COVID-19 lockdowns.	./cache/cord-322267-pbj819vk.txt	./txt/cord-322267-pbj819vk.txt