Delhi continues to top world’s most polluted megacities list: WHO
Delhi continues to top world’s most polluted megacities list: WHO (Image credit: AFP) Delhis air is the worst among world megacities, the World Health Organisation (WHO) confirmed recently, even as IndiaSpend‘s #breathe network of air-quality sensors reported fine-particulate-matter (PM2.5) levels were almost four times above daily safe levels, on average, for the seven-day period from September 22 to 28, 2016. For long-term exposure, these 24-hour levels are nearly 11 times above the WHO health standards. Over the monsoon, Delhi’s air was relatively cleaner because the rain and wind diminished the…
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