Delhi’s Air Quality Improves but Challenges Remain
Delhi records “satisfactory” air quality for 11 straight days in 2025, signalling progress in pollution control, though long-term efforts remain essential to sustain cleaner air.Delhi's Air Quality Index (AQI) stayed within the “satisfactory” range for 11 consecutive days in early July 2025, marking a rare improvement. While favourable weather and policy actions contributed, experts stress the need for lasting measures to tackle emissions, stubble burning, and climate-driven pollution risks.
Delhi’s air quality has shown improvement, recording a “satisfactory” Air Quality Index (AQI) for 11 consecutive days in early 2025, a rare occurrence for the capital. However, experts urge stronger measures to sustain this progress amid persistent pollution threats.
The Central Pollution Control Board (CPCB) recorded an AQI of 76 on July 6, 2025, well within the “satisfactory” range of 51–100. This follows a period of moderate air quality, with a brief dip to “poor” levels (AQI 289) on May 15 after a dust storm from Pakistan. The Commission for Air Quality Management (CAQM) revoked Stage 1 of the Graded Response Action Plan (GRAP) in May after consistent improvements, reflecting effective short-term measures. Favourable weather conditions, including monsoon rains, have helped disperse pollutants, contributing to cleaner air.
Despite this progress, Delhi faces ongoing challenges from vehicle emissions, construction dust, and industrial activities. The city’s air quality often worsens in winter due to stubble burning and low wind speeds, pushing AQI into “very poor” or “severe” categories (301–500). Health impacts are significant, with hospitals reporting a 30–40% spike in respiratory cases during pollution peaks. The recent ban on 62 lakh vehicles from refuelling in Delhi starting July 1 aims to curb emissions, but enforcement remains uneven.
Experts highlight the need for long-term solutions, including stricter regulations on industrial emissions and improved public transport. The Delhi government’s addition of 280 electric buses, with a goal of a fully electric fleet by 2027, is a step towards reducing vehicle-related pollution. However, coordination across NCR states is critical to address cross-border pollution sources like stubble burning in Punjab and Haryana.
Climate change exacerbates Delhi’s air quality issues, with dust storms and heatwaves becoming more frequent. The IMD forecasts continued monsoon activity, which may help maintain lower AQI levels, but experts warn that without sustained action, gains could be temporary. Investments in green infrastructure and public awareness campaigns are essential to ensure lasting improvements.
Delhi’s recent air quality gains demonstrate the potential for effective policy interventions. Continued efforts to address pollution sources and adapt to climate challenges will be crucial for the capital’s environmental health.
Source: Outlook Business
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