India Launches Methodology to Present Air Quality Index

India launched an index on Friday to measure air quality across the country, which is home to some of the most polluted cities in the world. It will measure eight major pollutants that impact respiratory health in cities with populations exceeding one million in the next five years and then gradually the rest of the country, Environment Minister Prakash Javadekar told reporters. The Air Quality Index will warn residents when pollution levels shoot past dangerous levels.

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