FGD norms for thermal plants reviewed
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Asked by UPSCPrelims 20111 PYQ
UPSC has already asked about this. Read the story with these questions in mind.
What happened
- MoEFCC notified SO2 emission standards for coal/lignite thermal plants on 07.12.2015 [PIB, Parliament reply].
- The standards were reviewed citing limited technology providers, cost, COVID-hit supply chains and low SO2 in ambient air [PIB, Parliament reply].
Background
- FGD (flue gas desulphurisation) is the main way to meet SO2 limits [PIB].
Why it matters
- The trade-off is power tariffs versus cleaner air.
How to use this in Mains
- As per PIB (2025-08-04): moEFCC notified SO2 emission standards for coal/lignite thermal plants on 07.12.2015.
- The trade-off is power tariffs versus cleaner air.
Quotable data pointThe standards were reviewed citing limited technology providers, cost, COVID-hit supply chains and low SO2 in ambient air.
PIB: MoEFCC: PQ FGD systems, 4 Aug 2025
Exam angle
UPSC
Prelims: FGD.
Practice MCQs
Original practice questions (not PYQs).
Practice · UPSC
FGD is used to control
Answer (b) & explanation
PIB.
Go deeper
Official source: PIB: MoEFCC: PQ FGD systems, 4 Aug 2025
facts from cited sources only; faculty review pending