scorecardresearch
Friday, Dec 09, 2022

Election Result LIVE

Explained: Dust winds in Delhi, their cause, and how long they will continue

Weather and environmental experts said a cyclonic circulation over Rajasthan and high temperatures over the past few days in northwest India is contributing to this phenomenon.

The IMD has recorded a wind speed of about 40-50 kmph in Delhi on Tuesday, officials said, which is helping in transport of dust but preventing temperature from rising further. (Representational/File)

Dust-laden winds swept Delhi on Tuesday, pushing the air quality into the poor category and increasing the concentration of coarse particles in the air. According to forecasts, strong winds that are carrying dust to Delhi from Rajasthan are expected to continue until Thursday.

Weather and environmental experts said a cyclonic circulation over Rajasthan and high temperatures over the past few days in northwest India is contributing to this phenomenon.

Newsletter | Click to get the day’s best explainers in your inbox

Delhi witnesses long-range transport of dust nearly every year from Rajasthan, and even from Afghanistan, during summer months.

Subscriber Only Stories
Delhi Confidential: Despite tumultuous relationship, Mamata is first to c...Premium
The new Gujarat House: 105 fresh faces, 14 women legislators, 1 Muslim; 7...Premium
Pratibha throws hints, old dilemma for Cong: too many CM aspirantsPremium
Behind surge in Gujarat: Modi 2022, Modi 2024, missing CongressPremium

The situation this time has been exacerbated by soaring temperatures, as Delhi recorded a severe heat wave on Monday, with mercury rising to a high of 40.1 degrees Celsius, eight degrees above normal temperature for this time of the year, according to the India Meteorological Department.

📣 JOIN NOW 📣: The Express Explained Telegram Channel

The IMD has recorded a wind speed of about 40-50 kmph in Delhi on Tuesday, officials said, which is helping in transport of dust but preventing temperature from rising further.

The concentration of particulate matter of 10 micrometres (PM10) — coarse particles suspended in the air — was 341 micrograms per cubic metre air (µg/m3) as of 5pm, against the 24 hour acceptable limit of 100 µg/m3.

Advertisement

The concentration of PM2.5 — particles that are smaller in size and are released from combustion activities — was about 105 µg/m3, a little higher than the 24 hour acceptable limit of 60 µg/m3.

Experts said the spike in PM10 concentration shows the impact of dust-laden winds on air quality, which, according to the Centre’s Early Warning System for Delhi, is expected to largely remain in poor category for the next five days.

First published on: 30-03-2021 at 06:55:44 pm
Next Story

Dance Deewane 3 crew members test positive for coronavirus, shoot halted

Latest Comment
Post Comment
Read Comments
Advertisement
Advertisement
Advertisement
Advertisement
close