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Around 20 million people in India's capital woke up on Wednesday breathing the most polluted air of any major city in the world, a day after celebrations for the Diwali festival, during which revelers typically set off fireworks and firecrackers. As of Wednesday, New Delhi's PM 2.5 concentration - a measure of pollutants in the air - was more than 40 times the World Health Organization's annualized guideline level, according to Swiss air quality monitoring company IQAir. New Delhi grapples wit ...Read More >
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