Air Pollution
Delhi rolls out GRAP IV vehicle curbs as AQI hits 358 amid fog chaos
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Following Tuesday's announcement, Delhi enforced the entry ban on non-BS-VI private vehicles from outside the city and 'No PUC, No Fuel' rule on December 18, 2025. AQI soared to 356-358 in 'very poor' category amid dense fog slashing visibility to 100m, disrupting flights and trains, though winds may aid dispersion later.
Common air pollutants like ozone alter the chemical scents that ants use to identify colony members, causing them to attack their own nest-mates as intruders. Researchers in Germany exposed ants to realistic levels of ozone and observed aggressive responses upon their return to the colony. This discovery highlights hidden ecological costs of pollution beyond human health.
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On the morning of February 1, 2026, parts of Delhi and the National Capital Region (NCR) experienced light rain, while the Air Quality Index remained in the very poor category. The India Meteorological Department (IMD) issued a yellow alert for thunderstorms and fog. Maximum temperatures are expected near 18 degrees Celsius, with minimums around 11 degrees Celsius.
Despite a 90% reduction in stubble burning in Punjab and Haryana, Delhi's air quality remained in the 'very poor' to 'severe' range throughout November 2025. Local pollution sources, including vehicular emissions, are identified as the primary drivers of the capital's persistent smog. The crisis raises concerns about children's health amid winter conditions.
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The Brihanmumbai Municipal Corporation has announced plans to enforce GRAP Stage IV restrictions in Mumbai if air quality exceeds an AQI of 200 for three consecutive days in specific areas. These measures aim to curb rising pollution levels. Construction sites will face closure under these curbs.
Delhi's air quality index slipped back into the 'very poor' category on Thursday, reaching 311, as stubble burning in neighboring states intensified. Farm fires in Punjab hit 351 instances, the second-highest this season, contributing significantly to the pollution. Students protested at Jantar Mantar demanding government action, while authorities reinstated bus parking at a key hotspot to curb emissions.
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Delhi's air has turned more poisonous this season, with former AIIMS director Dr. Randeep Guleria declaring it a public health emergency. People with weak lungs are advised to leave the city if possible. Experts predict worsening pollution due to slow winds and dropping temperatures.
Delhi misses NCAP target on PM10 reduction, trails behind Noida
2026년 01월 07일 19시 29분Supreme Court warns pollution watchdog over Delhi's air quality failure
2026년 01월 07일 16시 26분Study finds wildfires emit 21% more organic compounds
2025년 12월 24일 17시 54분Delhi's air quality improves to poor category as GRAP stage IV revoked
2025년 12월 18일 22시 14분Delhi's border checks enforce BS-VI norms on first day, turning back 460 vehicles
2025년 11월 27일 04시 17분Delhi's air quality slips to very poor with AQI at 384
2025년 11월 26일 06시 46분Shipping reroute uncovers low-sulfur fuels' effect on clouds
2025년 11월 25일 12시 12분Delhi's air quality remains very poor on 13th day of haze
2025년 11월 12일 15시 27분Supreme Court seeks stubble burning report from Punjab and Haryana
2025년 11월 07일 05시 09분Delhi's air quality remains very poor with stubble burning spike expected