Archive · 18 Jul 2025
Govt Exempts Most Coal Plants from Anti-Pollution Devices
Imagine factories that burn coal and make electricity.
They release a gas called SO2 that makes the air dirty.
The government wanted these factories to install special cleaning machines (FGD devices) to remove SO2.
But, the government changed its mind and said most factories don't have to install them.
Some experts disagree, saying that the change might lead to more air pollution and not accounting for how SO2 can spread and react in the air.
The Environment Ministry exempted most coal-based thermal plants from installing flue gas desulphurisation (FGD) devices.
FGD devices remove sulfur dioxide (SO2), a major contributor to air pollution, from emissions.
Plants near Delhi-NCR must comply by December 2027; others will be assessed individually.
The government cites studies suggesting FGD devices are unnecessary, focusing instead on overall particulate matter.
Experts criticize the decision, citing potential underestimation of SO2's impact and pollution spread.
- Who
- The Environment Ministry made the decision, impacting operators of coal-based thermal plants and public health.
- What
- The Environment Ministry has exempted a majority of coal-based thermal plants from installing FGD devices to reduce SO2 emissions.
- When
- The decision was made on July 11, with deadlines for compliance extended or removed for different categories of plants.
- Where
- India, particularly affecting thermal plants across the country, with specific focus on those near Delhi-NCR and other polluted areas.
- Why
- The government cited studies suggesting FGD devices are unnecessary and is focusing on overall particulate matter pollution.
Government's Stance
Expert Criticism
Necessity of FGD Devices
Government's Stance
FGD devices may not be necessary based on studies showing SO2 levels are within standards.
Expert Criticism
Experts express concerns that it will lead to more air pollution.
- FGD Device Purpose
- Remove SO2 from emissions
- Exempted Plants
- Approximately 78%
- NCR Plants Deadline
- December 2027
- SO2 Source
- Coal-based thermal plants
- PM2.5 Contribution of SO2
- About one-third
- Original Deadline for FGD
- December 2017