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Day after Diwali: Delhi air toxic but better than last year (Lead)

New Delhi, Oct 20 (IANS) The air quality in Delhi and its adjoining areas was toxic and a thick blanket of smoke hung in the skies on Friday as lung-clogging particulate matter, PM2.5, went beyond dangerous levels, a night after Diwali revellers burst firecrackers despite a Supreme Court ban on their sale.

The average air quality index on Friday was between 370-400, which was better than last year when it measured 445.

According to the Central Pollution Control Board (CPCB) portal, the average PM2.5 level in Delhi and NCR on Friday was 181 micrograms per cubic metre, significantly lower compared to the day after Diwali in 2016 when it measured 343 micrograms per cubic metre. The satisfactory limit of PM2.5 is 60 micrograms per cubic metre.

PM2.5 are fine particulate matter that can enter lungs and get absorbed in the bloodstream, and can cause respiratory problems, cardiovascular diseases and even lung cancer.

“The share of PM2.5 increased during Diwali period and became 60-70 per cent which made air quality more toxic,” according to the System of Air Quality and Weather Forecasting and Research (SAFAR) of the Union Ministry of Earth Sciences.

According to the data recorded by air quality monitoring stations of the CPCB, levels of PM2.5 touched alarmingly severe levels in at least 12 centres where it ranged between 406 and 416 at 7 p.m. The severe level means that air pollution can even affect healthy people and seriously impact those with existing diseases.

The air quality index was recorded “very poor” at seven stations – where it ranged between 321 and 394 at 7 p.m. The index value between 300 and 400 is considered “very poor” that can cause respiratory illness on prolonged exposure.

The air quality is likely to improve on Sunday in Delhi and adjoining Gurugram and Noida satellite towns. The region remained engulfed in a thick haze almost through the day, after the Diwali night that was less noisy than previous years.

The Supreme Court ban on sale of firecrackers didn’t prevent people from lighting sparklers, rockets and loud Diwali “bombs” though the volume was lower than previous years. Some people claimed to have travelled out of the city or shopped online to buy firecrackers, while many claimed they used last year’s leftover stock to celebrate Diwali.

The court on October affirmed the ban it had imposed on the sale of firecrackers in the Delhi and NCR. The court said the ban would be lifted at the end of this month if there was any positive effect during Diwali.

Experts, however, opined that the Supreme Court ban on the sale was just not enough.

Sunil Dahiya, a Greenpeace India activist, said: “There is enough evidence to prove the regional and comprehensive nature of air pollution. The need today is to curb the major sources of pollution along with curbing the episodic sources, such as Diwali firecrackers, to achieve breathable air throughout the year, and across geographies.”

–IANS
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Post Source: Ians feed

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