NASA Images Show Aerosol Level Dip To 20-Year-Low In North India Amidst Lockdown

US space agency National Aeronautics and Space Administration (NASA) recently published satellite data that shows that aerosol level in north India has dipped to staggering 20-year-low.

This is the result of the lack of human presence on streets due to the lockdown implemented across the county.

Jalandhar mountains

“We knew we would see changes in atmospheric composition in many places during the lockdown,” said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA”s Marshall Space Flight Center. “But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year,” added Mr Gupta.

For the unknown, Aerosols are ‘tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart’.

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The report further differentiates between different types of aerosols – ‘Some aerosols have natural sources, such as dust storms, volcanic eruptions, and forest fires. Others come from human activities, such as the burning of fossil fuels and croplands. Human-made aerosols tend to contribute most of the smaller particles that have greater potential for damaging human health’.

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Though both aerosols level and pollution have dipped in the country, it might soon rise as the country will soon see seasonal dust storms commence. 

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