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NASA released satellite imagery of the vast reduction in contamination in India following the coronavirus quarantine.
According to data provided by the US space agency, the fall in air pollution allowed it to reach the lowest levels in 20 years.
NASA evidenced this fact, after analyzing the contamination existing in the north of the country during the same period of six days from March 31 to April 5, 2016 to 2020.
Pawan Gupta, a scientist at the Universities Space Research Association at the NASA Marshall Space Flight Center in Huntsville, said, “We knew we would see changes in atmospheric composition in many places during the shutdown.”
Satellite data show that levels of airborne particles over northern #India have dropped significantly since the #COVID ー 19 lockdown began. https://t.co/xz6NgbQLOW pic.twitter.com/aP0fi5vL64
– NASA Earth (@NASAEarth) April 21, 2020
“But I have never seen such low ODA values on the Indo-Gangetic plain at this time of year,” he said.
The expert refers to the report tracking the optical depth of the aerosol (AOD), which is the measure of how light is absorbed or reflected by particles in the air as it travels through the atmosphere, according to CNN.
“ODA levels in northern India in early April were significantly below the norm for this time of year and the lowest in 20 years of MODIS observations. Ground observation stations in India have also reported a decrease in the particle pollution in the region, “says the NASA report.
It should be remembered that since March 25 that India has been quarantined due to the coronavirus pandemic.
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