Delhi air quality
Delhi air quality
Left Column

No let-up in air pollution in 2019 Diwali: Delhi air quality worst on record

A ban on conventional firecrackers failed to reduce air pollution over India’s biggest annual festival, Diwali.

分享这篇文章:

No let-up in air pollution this Diwali: Delhi air quality worsens

Delhi led the ranking of major polluted cities on October 28, 2019, a day after celebrating a Diwali that officials had hoped would mark a green beginning.

A court in 2018 banned all fireworks apart from “green crackers”, fireworks that produce less emissions because they have a different chemical composition.

However, in late October of 2019, Delhi air quality and Kolkata air quality rose sharply to beyond index levels. Delhi saw PM2.5 levels of up to 829.2 micrograms per cubic meter (ug/m3) and a U.S. Air Quality Index of 1005. The U.S. index only goes as far as 500.

At the same time, Kolkata had PM2.5 levels of 633.4 ug/m3 and an AQI of 621.

Delhi most polluted

Delhi most polluted

Delhi leads IQAir AirVisual’s pollution ranking of major global cities

India’s science and technology minister announced earlier in October that government scientists had developed green crackers that emit 30 percent less pollution and were quieter.1

However, sellers reported limited stock and that buyers were confused as to what to buy. A lot of the green stock had been shipped before the government agreed to the idea of a QR code to identify genuine green crackers.2

Reports said that conventional fireworks were still in use this year, and that  there were complaints of fireworks being set off outside the legal two-hour window.3
The weather also played a part, according to authorities.4 India’s weather department said that winds had brought pollution from stubble burning, or the burning of crop residues, in other states to the capital.

文章资源

[1] Ahead of Diwali, govt launches eco-friendly crackers to fight air pollution. https://economictimes.indiatimes.com/news/politics-and-nation/ahead-of-diwali-govt-launches-eco-friendly-crackers-to-fight-air-pollution/articleshow/71459838.cms?from=mdr 

[2] Gandhiok J. (2019, October 5). Green cracker launch official; logo, QR code to counter fakes. https://timesofindia.indiatimes.com/city/delhi/green-cracker-launch-official-logo-qr-code-to-counter-fakes/articleshow/71460387.cms

[3] Air quality 'very poor' in Delhi post Deepavali. (2019, October 28). https://www.thehindu.com/news/cities/Delhi/delhi-air-quality-dips-to-very-pooron-diwali/article29811526.ece

[4] Cappucci M. (2018, November 8). Air pollution skyrockets to hazardous levels in India. https://www.washingtonpost.com/weather/2018/11/08/air-pollution-skyrockets-hazardous-levels-india/

 

文章类型:
Right Column
Column

访问零售门店

Middle Content

查找你附近的IQAir零售门店

Find a retailer

Bottom Aligned Content
提交

访问 IQAir 办公室

Middle Content

查找你附近的IQAir办公室

Bottom Aligned Content
提交

与我们的专家交谈

Middle Content

请致电 400-108-5117 与我们的空气质量专家进行交流。

Bottom Aligned Content

Talk to an Expert