x
Help Us Guide You Better
best online ias coaching in india
2021-03-17

Download Pdf

banner

Environment
www.thehindu.com

South India has relatively better air quality.SUDHAKARA JAINSUDHAKARA JAIN  

Despite widespread air quality improvements during 2019 and 2020, air pollution continues to be dangerously high, the annual data ‘World Air Quality Report, 2020’ compiled by IQAir has revealed.

According to a press release, south Indian cities recorded relatively better air quality, though they remained above the daily WHO limit of 25 g/m3 for most parts of 2020.

Bengaluru, for instance, recorded an average 15.6% dip in PM 2.5 levels. However, the pollutant levels were above the WHO prescribed limit in 46.7% of the days. The IT city’s annual average stands at 27.5 g/m3, nearly three times the prescribed limit. Also, Bengaluru’s PM 2.5 levels in December 2020 surpassed the January 2020 levels, indicating that the ‘better air quality’ has already faded away.

The report showed that 22 of the top 30 most polluted cities globally are in India. None of the Indian cities met the prescribed annual limit of 10 g/m3. This is despite all Indian cities monitored recording improvement in air quality compared to 2018. As many as 63% of them saw improvements compared with 2019. Delhi ranked as the 10th most polluted city and the top polluted capital city in the world.

The report added that major sources of air pollution include transportation, biomass burning for cooking, power generation, industry, construction, waste burning, and episodic agricultural burning.

Subscribe to The Hindu digital to get unlimited access to Today's paper

Already have an account ? Sign in

Start your 14 days free trial. Sign Up

Find mobile-friendly version of articles from the day's newspaper in one easy-to-read list.

Enjoy reading as many articles as you wish without any limitations.

A select list of articles that match your interests and tastes.

Move smoothly between articles as our pages load instantly.

A one-stop-shop for seeing the latest updates, and managing your preferences.

We brief you on the latest and most important developments, three times a day.

*Our Digital Subscription plans do not currently include the e-paper, crossword and print.

You can support quality journalism by turning off ad blocker or purchase a subscription for unlimited access to The Hindu.

END
© Zuccess App by crackIAS.com