Monsoon is both a pollution pump and a cleanser, says study

About two decades ago, the Indian Ocean Experiment uncovered a large pollution haze from biofuel use, agricultural burning, and fossil fuel combustion, downwind of South Asia during the dry winter monsoon (December to March). But its fate during the wet summer monsoon (May to September) had been unclear till now.

Monsoon is both a pollution pump and a
About 80 per cent of all reactive sulfur emissions in South Asia, from large-scale coal burning in China and India, "are removed by precipitation largely as sulfate". Image source: Reuters

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