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Why does India's air look different from space?

22 June 2018

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There is something very distinct about the air over India and the surrounding countries in South Asia.

It is the presence of formaldehyde - a colourless gas that is naturally released by vegetation but also from a number of polluting activities.

The elevated concentrations have been observed by Europe's new Sentinel-5P satellite, which was launched last October to track air quality worldwide.

It is information that will inform policies to clean up the atmosphere.

Source: BBC

Image credit: Copernicus Sentinel data 2018/BIRA-IASB/DLR - Formaldehyde as measured by S5P-Tropomi: The map contains four months of observations up to April this year.

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