Polusi Udara
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.
Air quality in Mexico City and the State of Mexico improved, preventing a new ozone contingency activation amid a heat wave. At 3 p.m., only the Tlalpan station reported poor quality, Cuajimalpa good, and the rest acceptable. The Megalopolis Environmental Commission (CAMe) lifted the weekend contingency and keeps alerts for atmospheric stability conditions.
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Hampir satu dari 10 rumah yang diuji di Inggris, Italia, dan Belanda menunjukkan kadar benzena akibat kebocoran kompor gas yang melampaui batas aman, menurut para peneliti. Zat kimia pemicu kanker dalam gas alam ini menimbulkan risiko yang mirip dengan asap rokok pasif di dalam ruangan. Temuan ini menyoroti potensi polusi udara dalam ruangan akibat kebocoran kecil yang terus-menerus.
Delhi's air quality has improved sharply, with the average AQI reaching 271 in the poor category, down from severe levels in previous days. The Commission for Air Quality Management has revoked stage IV of the Graded Response Action Plan, though stage III remains in effect. However, forecasts indicate the situation may worsen again in the coming days.
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Following the December 18 launch of 'No PUC, No Fuel' and entry bans for non-BS-VI vehicles, Delhi Traffic Police inspected 2,768 vehicles at borders, turning back 460 non-compliant ones and issuing 289 challans amid air pollution fight. Limited checks at Badarpur allowed some entries unchecked.
Delhi's air quality remained in the very poor category on Friday, with the overall AQI rising to 384 and multiple stations recording severe levels above 400. The pollution is expected to persist over the coming week, affecting the National Capital Region. In Mumbai, air quality also worsened, prompting enforcement actions.
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Serangan di Laut Merah memaksa kapal-kapal mengambil jalur memutar di sekitar Tanjung Harapan, menciptakan eksperimen alami yang mengungkap bagaimana bahan bakar laut yang lebih bersih mengurangi pembentukan awan. Peneliti menemukan bahwa bahan bakar rendah sulfur mengurangi efek peningkat awan dari emisi kapal sekitar dua pertiga. Penemuan ini membantu menyempurnakan model iklim dan menyoroti trade-off dalam regulasi polusi.
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