sulphur dioxide

Why concerns about SO₂ emissions, a major air pollutant, keep recurring 

August 05, 2025 12:29 pm

The government has eased sulphur emission rules for coal power plants, which has reignited concerns about its environmental impact. But how SO₂ emissions affect both air quality and human health.

Centre again relaxes SO2 emission norms for coal plants around Delhi-NCR

July 13, 2025 1:11 am

The government's latest order is the fifth deadline extension given to plant operators since the norms were notified in 2015

India gives coal-fired plants extra 2 years to install emissions equipment

September 06, 2022 4:16 pm

The delay will be welcomed by operators of coal-fired utilities including private companies, like Tata Power and Adani Power, which have long lobbied for less severe requirements.

India's sulphur dioxide emissions among highest in world, increased 50% in 9 yrs: Study

November 10, 2017 7:14 pm

India's emissions of the air pollutant sulphur dioxide increased by 50 per cent since 2007, while China's fell by 75 per cent, claims a study which found that India is yet to implement emission controls like its neighbour.

Letters to the editor: Meaningless probe

January 31, 2014 11:47 pm

Sharp rise in air pollution this year: BMC

August 29, 2012 2:35 am

After a year of partial respite from rising air pollution during last year,the city has seen a sharp rise in the level of air pollutants this year.