Delhi recorded zero 'Good' air quality days in 2025 as per US EPA standards. In December 2025, GRAP Stage-IV was invoked as AQI levels touched 600+ at several monitoring stations including 644 at Anand Vihar and 635 at Wazirpur. GRAP was imposed 17 times from January 2025 to January 2026, with Stage III restrictions lasting 53 days and Stage IV lasting 15 days. Only 15% of India's population (200 million) live within 10 km of a continuous air quality monitor, while 85% (over 1.2 billion) breathe outside any measurable range.
Delhi Records Zero Good Air Quality Days in 2025, GRAP-IV Invoked
AQuick answer
Delhi had zero good AQI days in 2025; GRAP-IV was invoked on December 13, 2025 as Delhi's official average AQI rose from 431 at 4 PM to 448 at 7 PM.
Key facts
- Delhi recorded zero 'Good' air quality days in 2025 as per US EPA standards
- In December 2025, GRAP Stage-IV was invoked as AQI levels touched 600+ at stations including 644 at Anand Vihar and 635 at Wazirpur
- GRAP was imposed 17 times from January 2025 to January 2026, with Stage III lasting 53 days and Stage IV lasting 15 days
- Only 15% of India's population (200 million) live within 10 km of a continuous air quality monitor; 85% (over 1.2 billion) breathe outside any measurable range
Mains angle
Q: Analyse Delhi's recording zero 'Good' air quality days in 2025 and the governance failure implied by invoking GRAP Stage-IV in December amid AQI crossing 600+ at multiple monitoring stations.
Answer (50 words):
Delhi recorded zero 'Good' air quality days in 2025 (US EPA standards), with GRAP invoked 17 times January 2025–January 2026. GRAP Stage-IV was enforced in December as AQI touched 644 at Anand Vihar and 635 at Wazirpur. Only 15% of Indians (200 million) live within 10 km of continuous monitors.
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Environmental & Ecological ChangesScience & TechnologyPublic Policy & Grievance RedressalIndian Constitution & GovernanceClimateGeography of India
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Linked questionMedium
National Pollution Control Day (December 2) is observed in memory of which industrial disaster?
Explanation · Correct answer C
National Pollution Control Day is observed on December 2 in memory of the 1984 Bhopal Gas Tragedy caused by MIC gas leak from Union Carbide plant.
Source: AQI.IN
Frequently asked questions
What did Delhi record for 'Good' air quality days in 2025?
Delhi recorded zero 'Good' air quality days in 2025 as per US EPA standards.
What AQI levels led to GRAP Stage-IV in December 2025?
GRAP Stage-IV was invoked as AQI levels touched 600+ at several monitoring stations. The levels included 644 at Anand Vihar and 635 at Wazirpur.
How often was GRAP imposed from January 2025 to January 2026?
GRAP was imposed 17 times from January 2025 to January 2026. Stage III restrictions lasted 53 days and Stage IV lasted 15 days.
What did the article say about India's access to continuous air quality monitors?
Only 15% of India's population, or 200 million people, live within 10 km of a continuous air quality monitor. Another 85%, over 1.2 billion people, breathe outside any measurable range.
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