Some pollution hotspots in Delhi, Mumbai turn into green zones during lockdown


Team Udayavani, Apr 26, 2020, 1:37 PM IST

New Delhi: With vehicles off the road and most industries shut for over a month due to the coronavirus lockdown, some pollution hotspots in Mumbai and Delhi have turned into green zones recording minimal or no pollution.

In Delhi, eight locations which used to be pollution hotspots before the lockdown have now become green zones, said Gufran Beig, director, Centre’s System of Air Quality Weather Forecasting and Research (SAFAR).

The areas are Vinobapuri, Adarsh Nagar, Vasundhara, Sahibabad, Ashram road, Punjabi Bagh, Okhla and Badarpur, he told PTI, sharing a comparative map of Delhi’s air quality before and during the lockdown period.

In Mumbai, Worli, Borivali and Bhandup were among areas which recorded cleaner air as compared to other areas of the Mumbai Metropolitan Region (MMR).

These pollution hotspots in Delhi and Mumbai used to report high pollution mainly due to industrial activity or vehicular traffic. The air quality index in these areas now lie in ‘good’ or ‘satisfactory’ category.

An AQI between 51-100 is considered ‘satisfactory’, 101-200 ‘moderate’, 201-300 ‘poor’, 301-400 ‘very poor’, and 401-500 ‘severe’.

SAFAR also compared the concentration of the most dangerous air pollutants, PM2.5, PM10 and NO2, in the air during first phase of the lockdown from March 25 to April 14 with pre-lockdown period from March 1 to 21. The analysis was conducted in Delhi, Mumbai, Pune and Ahmedabad.

PM2.5 (atmospheric particulate matter that have a diameter of less than 2.5 micrometers), PM10 (atmospheric particulate matter that have a diameter of less than 10 micrometers) and NO2 (nitrogen di-oxide released in traffic emissions) are some of the most dangerous pollutants and prolonged exposure to these can lead to serious respiratory disorders.

In Delhi, PM2.5 concentration was found to be reduced during the lockdown by 36 per cent, PM10 by 43 per cent and NO2 by 52 per cent as compared to the pre-lockdown period, the analysis showed.

The comparison in Mumbai in the same period showed a reduction in PM2.5 by 39 per cent, PM10 by 43 per cent and NO2 by 63 per cent.

In Pune, a reduction was observed in PM2.5 by 25 per cent, PM10 by 26 per cent and NO2 by 57 per cent, according to the data.

In Ahmedabad, PM2.5 reduced by 39 per cent, PM10 by 32 per cent and NO2 by 27 per cent, according to the data.

The Central Pollution Control Board (CPCB) has also reported 46 per cent reduction in PM2.5 levels and 50 per cent depletion in PM10 concentrations in the national capital.

India is under the lockdown since March 25 to contain the spread of coronavirus, which has claimed over 824 lives and infected more than 26,496 people in the country.

Udayavani is now on Telegram. Click here to join our channel and stay updated with the latest news.

Top News

Lata Mangeshkar off ventilator but under observation: doctor

In past 10 yrs, SP and BJP govts gave anarchy, jungle raj to UP: Mayawati

CM Bommai sets February end deadline for ‘Grama One’ implementation across Karnataka

Skeleton of elephant found in noon meal centre

SBI suspends circular on recruitment of pregnant women

Grenade attack on security personnel in Srinagar

‘Election king’ again files papers for poll


Related Articles More

In past 10 yrs, SP and BJP govts gave anarchy, jungle raj to UP: Mayawati

HC questions police probe, acquits Maha man handed life sentence by lower court for murder

552 liquor shops opened in Delhi till January 28 under new excise policy

Skeleton of elephant found in noon meal centre

SBI suspends circular on recruitment of pregnant women

MUST WATCH

NEWS BULLETIN 29-01-2022

Cobra – Dog Fight at Sakaleshpura

Why Agriculture Needs Young People

Elephant shot dead near Hunsur

Mangaluru: Youth loses life while trying to save drowning girlfriend


Latest Additions

Lata Mangeshkar off ventilator but under observation: doctor

In past 10 yrs, SP and BJP govts gave anarchy, jungle raj to UP: Mayawati

HC questions police probe, acquits Maha man handed life sentence by lower court for murder

552 liquor shops opened in Delhi till January 28 under new excise policy

Next part of PKL scheduled revealed

Thanks for visiting Udayavani

You seem to have an Ad Blocker on.
To continue reading, please turn it off or whitelist Udayavani.