Live
- No more smoking in government office premises
- Google Cloud unveils new initiatives to empower AI startups in India
- Collector Warns of Strict Action if Irregularities Occur in Weighing Process
- WPL 2025: Mumbai Indians release Issy Wong, Humairaa Kaazi, Fatima Jaffer and Priyanka Bala
- People will not forgive Congress for repeatedly insulting Constitution: Kiren Rijiju
- Aid group resumes activities at famine-hit camp in Sudan
- Kishan Reddy Vows to End BRS and Congress Influence in Telangana, Criticizes CM's Governance
- Punjab bypolls: Bittu twisting words for political gains, says Congress nominee
- Punjab CM to administer oath to over 10,000 sarpanches on Friday
- BJP Core Committee Plans Protests Against State Government’s Failures
Delhi air 'very poor' again due to high humidity
After a brief relief, the national capital's air quality plunged to the "very poor" category again on Thursday because of high humidity following light rain, officials said.
New Delhi : After a brief relief, the national capital's air quality plunged to the "very poor" category again on Thursday because of high humidity following light rain, officials said.
Delhi had been breathing relatively less polluted air for three days after a bright sun and improved wind speed pulled the city out of the grip of a dense haze that had been lingering over it since October 29. But the increased humidity on Thursday proved harmful.
On Sunday, too, a drizzle resulted in an increase in humidity, triggering a massive pollution spike. Weather experts said high humidity and slower winds hamper dispersion of pollutants and lead to the formation of more harmful secondary particles.
Secondary particles are products of complicated atmospheric reactions between primary particles, such as particulate matter, sulphur dioxide and nitrogen dioxide directly emitted by stubble burning and vehicles, in the presence of other factors such as sunlight and moisture.
Examples of secondary particles include sulphates, nitrates, ozone and organic aerosols.
Delhi's overall air quality index read 309 at 4pm and 320 at 7 pm on Thursday.
