https://hindi.downtoearth.org.in/river/letters-to-rivers https://cf-images.assettype.com/downtoearth-hindi/2026-05-27/obrimjn2/downtoearth-hindi2025-11-26k3d6kdoedown-to-earthimportlibrarylarge2019-04-010.657041001554115686ganga.avif downtoearth-hindi hi 2026-09-27T14:23:30.494Z नदियों के नाम पाती River, Delhi, Sand, Ganga, River Pollution, Water Quality, Waste Disposal, Water Pollution, Freshwater Ecosystems, Encroachment, Ecosystems, Water Pollution Control, Yamuna, Bundelkhand, Plastics, River Basin, polluted rivers, River, illegal sand mining, River Yamuna, History, culture, Narmada river, guwahati, Active flood plain, himalayan rivers https://hindi.downtoearth.org.in/air/delhi-recorded-its-second-cleanest-day-of-the-year-on-september-27-with-the-aqi-dropping-to-53 https://cf-images.assettype.com/down-to-earth/import/library/large/2021-06-02/0.35691900_1622617645_lockdown.jpg फोटो: विकास चौधरी downtoearth-hindi hi 2026-09-27T14:21:05.786Z 27 सितम्बर को दिल्ली में दर्ज हुआ साल का दूसरा सबसे साफ दिन, घटकर 53 पर पहुंचा एक्यूआई Air, Air Pollution, Health Effects, Cancer, Vehicular Pollution, Respiratory Diseases, Delhi, fossil fuel, Rajasthan, Haryana, Air Pollution Control, Urban Air Quality, PM 2.5, Air Quality Management, Air Quality Regulations, Air Quality Standards, Asthma, Bihar, Jaipur, Mumbai, Particulate Matter, Lung Disease, Ozone, Chandigarh, Carbon Monoxide, The World Health Organization (WHO), Air Quality Monitoring, Air Quality Index (AQI), RSPM (PM 10), Buses, Cars, Central Pollution Control Board (CPCB), Chennai, Kanpur, Public Transport, dust pollution, Air Quality and Health, Lucknow, Hyderabad (D), Cycles, Bangalore, Kolkata, National Ambient Air Quality Standards, Amritsar, Faridabad, Gaya, Patna, Industrial air pollution https://hindi.downtoearth.org.in/air/pollution-moves-towards-the-mountains-leh-tops-the-list-with-an-aqi-of-195-madikeri-cleanest https://cf-images.assettype.com/downtoearth-hindi/2026-08-13/d1dyz0z1/lehistock.jpg लेह का मुख्य बाजार; फोटो: आईस्टॉक downtoearth-hindi hi 2026-09-26T13:25:57.273Z पहाड़ों की ओर रुख करता प्रदूषण: 195 एक्यूआई के साथ पहले पायदान पर लेह, मदिकेरी सबसे साफ Air, Air Pollution, Health Effects, Cancer, Vehicular Pollution, Delhi, Gujarat, Rajasthan, Kerala, Maharashtra, Air Pollution Control, Urban Air Quality, PM 2.5, Air Quality Management, Air Quality Regulations, Air Quality Standards, Madhya Pradesh, Asthma, Bihar, North East, Mumbai, Particulate Matter, Lung Disease, Andhra Pradesh, Ozone, Ladakh, RESPIRATORY DISEASE, Carbon Monoxide, The World Health Organization (WHO), Air Quality Monitoring, Air Quality Index (AQI), RSPM (PM 10), Buses, Cars, Central Pollution Control Board (CPCB), Chennai, Kanpur, Public Transport, dust pollution, Air Quality and Health, Air pollution in Delhi, Lucknow, Cycles, Bangalore, National Ambient Air Quality Standards, Faridabad, air pollution agenda, Industrial air pollution, Urban mobility, maharajganj, Leh