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Delhi Pollution: New Study Maps Shifting Pollution Sources
27 Oct
Summary
- A new study assesses how Delhi's pollution mix has changed in the last decade.
- The study uses high-resolution mapping with a 500m x 500m grid for accuracy.
- Results will help plan long-term pollution control strategies for Delhi-NCR.
A significant new study is currently underway to analyze the changing pollution profile of Delhi over the past decade. This initiative aims to determine how factors like cleaner fuels and updated vehicle technologies have impacted the contribution of various pollution sources. The assessment is being conducted using a high-resolution emission inventory and source apportionment methodology across a 500m x 500m grid for Delhi and 27 NCR districts, with 2026 as the base year.
The comprehensive study, running from January 1 to December 31, is expected to provide an analysis by mid-2027. It will also generate future emissions and air quality scenarios for the years 2030, 2035, and 2040. This detailed mapping and ground verification approach will enable precise identification of emission hotspots and differing source profiles within the region.
Led by a consortium including Automotive Research Association of India, IIT-Delhi, TERI, and Indian Institute of Tropical Meteorology, the project is funded by CPCB. The new inventory will cover key pollutants like PM10, PM2.5, and various gases. The study's outcomes are critical for developing scientific, long-term pollution control plans for the Delhi-NCR region and will inform future updates to systems like IITM's Decision Support System.
