Delhi air turns toxic after Diwali fireworks

  • 11/5/2021
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India"s national capital, Delhi, woke up to grey skies as air quality dipped to hazardous levels following the festival of Diwali. Despite a ban, people across the city burst firecrackers late into Thursday night, worsening pollution levels. Vehicular and industrial emissions, dust and weather patterns make Delhi the world"s most polluted capital. The air turns especially toxic in winter when farmers in neighboring states burn crop stubble. And fireworks during Diwali, which happens at the same time, only worsen the air quality as low wind speeds trap the pollutants in the lower atmosphere. The concentration of PM2.5 — dangerous tiny pollutants in the air — stood at 999 per cubic meter, the maximum reading, in some parts of Delhi on Friday, according to the government"s air quality monitors. Several places recorded figures close to or higher than 500, which is categorized as "severe". A figure between zero and 50 is considered "good", and between 51 and 100 is "satisfactory", according to the air quality index or AQI. The government banned the sale and bursting of firecrackers this year to curb pollution levels. But that did not appear to deter the city"s residents. A thick layer of smog blanketed the city on Friday morning, and people complained of itchy throats and watery eyes. The lack of visibility was a factor in a six-car crash on a highway which left a number of people injured, including children, NDTV reported. Others complained of how "predictable" the dip in air quality had become every year during Diwali. But the issue has also turned political with some people seeing this as an attempt to target Hindu festivals. They argue that Diwali fireworks are an intrinsic part of the celebration and are not to blame for the noxious air since Delhi experiences severe pollution throughout the year. Several people took to Twitter to share images of themselves setting off firecrackers, and declaring this is how they want to celebrate Diwali. But others argue that the incessant spate of fireworks worsens air that is already thick with pollutants - and that firecrackers are a relatively recent addition to the festival of lights, which is traditionally celebrated by lighting lamps and praying to the goddess of wealth, Lakshmi, for prosperity. Officials said the air would only slightly improve to "very poor" by Sunday evening. The government"s air quality monitor estimates that stubble burning accounted for some 35% of Delhi"s air pollution on Friday, and its share will likely rise over the weekend. India has the world"s worst air pollution. Home to 22 of the 30 most polluted cities on Earth, India"s toxic air kills more than one million people each year, according to experts. Last year, Delhi recorded the highest concentration of PM2.5 so far - it was at 14 times the safe limit recognized by the World Health Organization (WHO). A recent study said that 480 million people in northern India faced the "most extreme levels of air pollution in the world". It also said that up to 10 years could be added to the lives of residents in Delhi if air pollution was reduced to meet the WHO guideline of 10 µg/m³.

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