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iFOREST Study Reveals 54% PM2.5 in Ludhiana, 62% in Varanasi from Unmitigated Fuel Use

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link
01 Jul 2026
~2 min
Source: Indian Express
Key Data:21,000 tonnes PM2.5/year Ludhiana14,000 tonnes PM2.5/year Varanasi54% unmitigated Ludhiana62% unmitigated Varanasi65-70% outside city boundaries60-70% reduction potential by 2035
Bodies:iFOREST
Practice MCQs from today's news ▸
What This Article Covers

1.iFOREST study quantifies unmitigated fuel use emissions: 54% in Ludhiana (21,000 tonnes/year) and 62% in Varanasi (14,000 tonnes/year).

2.65-70% of PM2.5 emissions originate outside city boundaries, highlighting the need for regional airshed management.

3.Commercial cooking (98% unmitigated) and domestic solid fuel use are top contributors; older vehicles (>10 years) account for 69% of transport emissions.

The Big Picture
Prelims · HighMains · Medium

A new iFOREST study provides the first district-level assessment of unmitigated fuel use emissions in the Indo-Gangetic Plain, revealing that 54% of Ludhiana's and 62% of Varanasi's PM2.5 emissions come from fuel burned without pollution control devices. This hidden source is a critical gap in India's National Clean Air Programme (NCAP) and offers a scalable framework for targeted interventions that could cut emissions by 60-70% by 2035.

Exam Lens

Quick Exam Facts From News

Ludhiana annual PM2.521,000 tonnes
Varanasi annual PM2.514,000 tonnes
Unmitigated % in Ludhiana54%
Unmitigated % in Varanasi62%
Emissions outside city boundaries65-70%
Potential reduction by 203560-70%
Commercial cooking unmitigated98%
Transport emissions from vehicles >10 yrs69%

1-Minute Revision

  • ›Ludhiana annual PM2.5: 21,000 tonnes
  • ›Varanasi annual PM2.5: 14,000 tonnes
  • ›Target this Data: 54% of Ludhiana's PM2.5 and 62% of Varanasi's PM2.5 are from unmitigated fuel use.
  • ›Target this Nodal Body: International Forum for Environment, Sustainability and Technology (iFOREST) published the study.
  • ›Target this Legal Point: National Clean Air Programme (NCAP) is the policy framework that the study aims to inform.

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which organization published the study on unmitigated fuel use emissions in Ludhiana and Varanasi?

Q2Statement-basedHard

Consider the following statements regarding the iFOREST study on unmitigated fuel use:

1. In Ludhiana, 54% of PM2.5 emissions are from unmitigated fuel use.

2. Commercial cooking in Varanasi has the highest unmitigated emission share at 98%.

3. The study found that 65-70% of PM2.5 emissions originate outside city boundaries.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the iFOREST study, what percentage of PM2.5 emissions in Varanasi are unmitigated?

Q4Application/ImpactMedium

What is the primary implication of the finding that 65-70% of PM2.5 emissions originate outside city boundaries?

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