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Indo-Gangetic Plain PM2.5 Pollution Rose Over 20% in 2010-19, Affects Himalayas: NCAP Impact Limited, Study Finds

Target:UPSC GS-IIIMPSCTeachingSSC GAPrelims HighMains HighStatic GK Link
25 May 2026
~2 min
Source: Indian Express
Key Data:Over 20% pollution increase (2010-19)Aerosol Optical Depth 0.71NCAP launched 2019Sulphate emissions rise 30% in Assam post-NCAP
Bodies:Bose InstituteNASA
Practice MCQs from today's news ▸
What This Article Covers

1.Particulate matter pollution across the Indo-Gangetic Plain increased by more than 20% during 2010-2019 compared to the previous decade.

2.Biomass burning, particularly from crop residue and household energy use, is the dominant and growing driver, especially in eastern IGP and Northeast India.

3.The study calls for expanding the National Clean Air Programme (NCAP) to include rural regions and ecologically sensitive areas like the Himalayas and Sundarbans.

The Big Picture
Prelims · HighMains · High

A critical environmental study reveals particulate pollution in the Indo-Gangetic Plain (IGP) increased by over 20% between 2010-2019, with biomass burning as the dominant driver. Alarmingly, pollution plumes now reach deep into the ecologically sensitive Himalayan ranges, exposing a significant gap in India's National Clean Air Programme (NCAP) which currently excludes these zones.

Exam Lens

Quick Exam Facts From News

Pollution Increase (IGP)Over 20% in 2010-19 vs 2000s
Highest Aerosol Depth0.71 (Lower IGP)
NCAP Launch Year2019
Study Published InAtmospheric Environment journal

1-Minute Revision

  • ›Pollution Increase (IGP): Over 20% in 2010-19 vs 2000s
  • ›Highest Aerosol Depth: 0.71 (Lower IGP)
  • ›Target this Data: Over 20% increase in IGP pollution (2010-19 vs 2000s)
  • ›Target this Nodal Body: Bose Institute, Kolkata (conducted the study)
  • ›Target this Legal Point: National Clean Air Programme (NCAP), launched in 2019

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

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

Q1Static LinkageEasy

The study on Indo-Gangetic Plain pollution was conducted by researchers at which institute?

Q2Statement-basedHard

Consider the following statements regarding the study on pollution in the Indo-Gangetic Plain:

1. Particulate matter pollution across the IGP increased by more than 20 per cent during 2010-2019 compared to the previous decade.

2. The study found that dust pollution, concentrated over the western IGP, showed an increasing trend.

3. The research identified the eastern IGP – particularly Bihar and southern West Bengal – as a persistent and worsening aerosol hotspot.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the study, what was the highest Aerosol Optical Depth (AOD) recorded in the lower Indo-Gangetic Plain?

Q4Application/ImpactMedium

What is a key recommendation made by the researchers regarding India's National Clean Air Programme (NCAP) based on their findings?

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