Why is South Asia the hotspot for air pollution?
South Asia has become the global hotspot for air pollution, with studies finding four of the world's most polluted countries and nine of the 10 most polluted cities are in the region. - REUTERS
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South Asia has become the global hotspot for air pollution, with studies finding four of the world's most polluted countries and nine of the 10 most polluted cities are in the region. - REUTERS
