  The purpose of this study has extremely dedicated to exposing the correlation
between coronavirus pandemic and space observation on unhealthy air quality in
India. The world has undergone lockdown to break the chain of coronavirus
infection. The Air Quality Index (AQI) has started to improve after the
commencement of lockdown due to industrial and transportation sectors
temporally closed. This study compiled the data recently released by NASA
(National Aeronautics and Space Administration), ESA (European Space Agency),
and ISRO (Indian Space and Research Organization). In this paper, we have
discussed the space observation on Nitrogen Dioxide (NO2), Aerosol Optical
Depth (AOD), PM2.5, and PM10 influenced the air quality across the various
region of India. We analyzed the detoxing of air quality before and during the
lockdown period over the same time the frame of current and the previous year.
The result has shown a positive impact on the detoxing of unhealthy air quality
during lockdown stated as the emission of NO2 has reduced to 40% - 50% and
optical level of aerosol indexed at low compared to the last 20 years in
northern India.
