SmogRank / Episodes / India
North-western India, April 2025
For 3 days, from 20 to 22 April 2025, 15 cities in India had PM2.5 at least twice their usual for the time of year. The worst reading was Bāghpat, Uttar Pradesh, India: 107.0 µg/m³ on 22 April, about 2.3× its usual 46.6.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 15 in 1 country
Days 3 20 to 22 April 2025
Worst day 20 April 8 cities counted
Furthest above usual 11× Rishīkesh
Day by day
Play 20 April 8 cities at twice their usual or more
Sīkar Jaipur Jhunjhunūn Ajmer Tonk Dausa Nāgaur Alwar Bikaner Bhilwara Bhiwadi Karauli Kota Pāli Najafgarh Aya Nagar Dera Māndi Bharatpur Hanumāngarh Bawāna Rājsamand Delhi Narela Bārān Noida Vrindāvan Loni Ghāziābād Greater Noida Dādri Dhaulpur Jhālāwār Sri Ganganagar Agra Khurja Bathinda Bulandshahr Hāpur Jalor Meerut Pratāpgarh Gwalior Fīrozābād Muzaffarnagar Gobindgarh Khanna Dūngarpur Ludhiana Bānswāra Chandigarh Jhānsi Ratlām Ropar Morādābād Baddi Jaisalmer Dehradun Bareilly Damoh Rajākheri Chūru Mohali Patiāla Chittorgarh Sirohi Būndi Jodhpur Bāghpat Nandri Udaipur Saugor Sawai Madhopur Bārmer Rishīkesh 17 Apr 18 19 20 21 22 23 24 25 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.
How it spread
Udaipur Udaipur, 17 April: 43.1 µg/m³, 1.0× usual Udaipur, 18 April: 38.9 µg/m³, 0.9× usual Udaipur, 19 April: 49.6 µg/m³, 1.1× usual Udaipur, 20 April: 103.0 µg/m³, 2.4× usual Udaipur, 21 April: 72.3 µg/m³, 1.7× usual Udaipur, 22 April: 51.0 µg/m³, 1.2× usual Udaipur, 23 April: 37.6 µg/m³, 0.9× usual Udaipur, 24 April: 44.9 µg/m³, 1.0× usual Udaipur, 25 April: 41.8 µg/m³, 1.0× usual Sawai Madhopur Sawai Madhopur, 17 April: 45.8 µg/m³, 1.7× usual Sawai Madhopur, 18 April: 47.3 µg/m³, 1.8× usual Sawai Madhopur, 19 April: 49.4 µg/m³, 1.9× usual Sawai Madhopur, 20 April: 76.6 µg/m³, 2.9× usual Sawai Madhopur, 21 April: 60.7 µg/m³, 2.3× usual Sawai Madhopur, 22 April: 52.1 µg/m³, 2.0× usual Sawai Madhopur, 23 April: 55.2 µg/m³, 2.1× usual Sawai Madhopur, 24 April: 47.2 µg/m³, 1.8× usual Sawai Madhopur, 25 April: 46.1 µg/m³, 1.7× usual Chūru Chūru, 17 April: 47.6 µg/m³, 1.3× usual Chūru, 18 April: 51.1 µg/m³, 1.4× usual Chūru, 19 April: 64.7 µg/m³, 1.7× usual Chūru, 20 April: 76.6 µg/m³, 2.0× usual Chūru, 21 April: 43.1 µg/m³, 1.1× usual Chūru, 22 April: 40.7 µg/m³, 1.1× usual Chūru, 23 April: 35.1 µg/m³, 0.9× usual Chūru, 24 April: 33.2 µg/m³, 0.9× usual Chūru, 25 April: 40.5 µg/m³, 1.1× usual Jodhpur Jodhpur, 17 April: 34.3 µg/m³, 1.2× usual Jodhpur, 18 April: 34.3 µg/m³, 1.2× usual Jodhpur, 19 April: 39.4 µg/m³, 1.4× usual Jodhpur, 20 April: 61.6 µg/m³, 2.2× usual Jodhpur, 21 April: 43.8 µg/m³, 1.6× usual Jodhpur, 22 April: 36.5 µg/m³, 1.3× usual Jodhpur, 23 April: 43.5 µg/m³, 1.6× usual Jodhpur, 24 April: 43.1 µg/m³, 1.6× usual Jodhpur, 25 April: 35.1 µg/m³, 1.3× usual Bārmer Bārmer, 17 April: 22.4 µg/m³, 1.2× usual Bārmer, 18 April: no reading Bārmer, 19 April: 37.6 µg/m³, 2.0× usual Bārmer, 20 April: 59.5 µg/m³, 3.1× usual Bārmer, 21 April: 33.6 µg/m³, 1.8× usual Bārmer, 22 April: 15.9 µg/m³, 0.8× usual Bārmer, 23 April: 14.4 µg/m³, 0.8× usual Bārmer, 24 April: 21.4 µg/m³, 1.1× usual Bārmer, 25 April: 27.6 µg/m³, 1.5× usual Būndi Būndi, 17 April: no reading Būndi, 18 April: 26.5 µg/m³, 1.1× usual Būndi, 19 April: 35.7 µg/m³, 1.4× usual Būndi, 20 April: 53.8 µg/m³, 2.2× usual Būndi, 21 April: 35.4 µg/m³, 1.4× usual Būndi, 22 April: 26.7 µg/m³, 1.1× usual Būndi, 23 April: 17.6 µg/m³, 0.7× usual Būndi, 24 April: 24.4 µg/m³, 1.0× usual Būndi, 25 April: 28.7 µg/m³, 1.2× usual Nandri Nandri, 17 April: 21.5 µg/m³, 1.0× usual Nandri, 18 April: no reading Nandri, 19 April: 31.1 µg/m³, 1.4× usual Nandri, 20 April: 50.2 µg/m³, 2.3× usual Nandri, 21 April: 25.3 µg/m³, 1.1× usual Nandri, 22 April: 13.7 µg/m³, 0.6× usual Nandri, 23 April: 17.3 µg/m³, 0.8× usual Nandri, 24 April: 19.2 µg/m³, 0.9× usual Nandri, 25 April: 15.3 µg/m³, 0.7× usual Sirohi Sirohi, 17 April: 23.2 µg/m³, 1.2× usual Sirohi, 18 April: 20.5 µg/m³, 1.1× usual Sirohi, 19 April: 27.5 µg/m³, 1.5× usual Sirohi, 20 April: 39.0 µg/m³, 2.1× usual Sirohi, 21 April: 30.6 µg/m³, 1.6× usual Sirohi, 22 April: no reading Sirohi, 23 April: 21.2 µg/m³, 1.1× usual Sirohi, 24 April: 17.1 µg/m³, 0.9× usual Sirohi, 25 April: 16.5 µg/m³, 0.9× usual Chittorgarh Chittorgarh, 17 April: 43.5 µg/m³, 1.3× usual Chittorgarh, 18 April: 32.7 µg/m³, 1.0× usual Chittorgarh, 19 April: 31.1 µg/m³, 0.9× usual Chittorgarh, 20 April: 62.0 µg/m³, 1.8× usual Chittorgarh, 21 April: 69.3 µg/m³, 2.1× usual Chittorgarh, 22 April: 48.0 µg/m³, 1.4× usual Chittorgarh, 23 April: no reading Chittorgarh, 24 April: 42.7 µg/m³, 1.3× usual Chittorgarh, 25 April: 28.2 µg/m³, 0.8× usual Saugor Saugor, 17 April: 33.4 µg/m³, 1.4× usual Saugor, 18 April: 37.5 µg/m³, 1.5× usual Saugor, 19 April: 37.5 µg/m³, 1.5× usual Saugor, 20 April: 47.8 µg/m³, 2.0× usual Saugor, 21 April: 61.5 µg/m³, 2.5× usual Saugor, 22 April: 40.6 µg/m³, 1.7× usual Saugor, 23 April: 40.3 µg/m³, 1.7× usual Saugor, 24 April: 46.2 µg/m³, 1.9× usual Saugor, 25 April: 49.9 µg/m³, 2.0× usual Rajākheri Rajākheri, 17 April: 31.9 µg/m³, 1.4× usual Rajākheri, 18 April: 30.4 µg/m³, 1.4× usual Rajākheri, 19 April: 34.6 µg/m³, 1.5× usual Rajākheri, 20 April: 40.7 µg/m³, 1.8× usual Rajākheri, 21 April: 45.7 µg/m³, 2.0× usual Rajākheri, 22 April: 35.3 µg/m³, 1.6× usual Rajākheri, 23 April: 34.9 µg/m³, 1.6× usual Rajākheri, 24 April: 37.7 µg/m³, 1.7× usual Rajākheri, 25 April: 40.3 µg/m³, 1.8× usual Rishīkesh Rishīkesh, 17 April: 8.1 µg/m³, 1.6× usual Rishīkesh, 18 April: 10.6 µg/m³, 2.1× usual Rishīkesh, 19 April: 11.7 µg/m³, 2.3× usual Rishīkesh, 20 April: 8.7 µg/m³, 1.7× usual Rishīkesh, 21 April: 37.1 µg/m³, 7.4× usual Rishīkesh, 22 April: 54.4 µg/m³, 11× usual Rishīkesh, 23 April: 59.6 µg/m³, 12× usual Rishīkesh, 24 April: 46.2 µg/m³, 9.2× usual Rishīkesh, 25 April: 41.5 µg/m³, 8.3× usual Bāghpat Bāghpat, 17 April: no reading Bāghpat, 18 April: 76.5 µg/m³, 1.6× usual Bāghpat, 19 April: no reading Bāghpat, 20 April: no reading Bāghpat, 21 April: no reading Bāghpat, 22 April: 107.0 µg/m³, 2.3× usual Bāghpat, 23 April: 108.0 µg/m³, 2.3× usual Bāghpat, 24 April: 116.0 µg/m³, 2.5× usual Bāghpat, 25 April: 119.0 µg/m³, 2.6× usual Patiāla Patiāla, 17 April: 43.1 µg/m³, 1.4× usual Patiāla, 18 April: 53.3 µg/m³, 1.7× usual Patiāla, 19 April: no reading Patiāla, 20 April: 44.4 µg/m³, 1.4× usual Patiāla, 21 April: 58.4 µg/m³, 1.8× usual Patiāla, 22 April: 66.8 µg/m³, 2.1× usual Patiāla, 23 April: 65.6 µg/m³, 2.1× usual Patiāla, 24 April: 63.4 µg/m³, 2.0× usual Patiāla, 25 April: 52.9 µg/m³, 1.7× usual Mohali Mohali, 17 April: 29.8 µg/m³, 1.1× usual Mohali, 18 April: 40.0 µg/m³, 1.5× usual Mohali, 19 April: 33.6 µg/m³, 1.2× usual Mohali, 20 April: 35.5 µg/m³, 1.3× usual Mohali, 21 April: 46.3 µg/m³, 1.7× usual Mohali, 22 April: 56.4 µg/m³, 2.1× usual Mohali, 23 April: 53.6 µg/m³, 2.0× usual Mohali, 24 April: 47.5 µg/m³, 1.8× usual Mohali, 25 April: 30.3 µg/m³, 1.1× usual 17 Apr 18 19 20 21 22 23 24 25 Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Rishīkesh Uttarakhand, India 1 23 April 1.3 12× Bārmer Rajasthan, India 1 20 April 19.0 3.1× Sawai Madhopur Rajasthan, India 2 20 April 26.6 2.9× Bāghpat Uttar Pradesh, India 1 25 April 46.6 2.6× Saugor Madhya Pradesh, India 1 21 April 24.4 2.5× Udaipur Rajasthan, India 1 20 April 43.2 2.4× Nandri Rajasthan, India 1 20 April 22.1 2.3× Jodhpur Rajasthan, India 1 20 April 27.6 2.2× Būndi Rajasthan, India 1 20 April 24.8 2.2× Patiāla Punjab, India 1 22 April 31.9 2.1× Mohali Punjab, India 1 22 April 27.0 2.1× Sirohi Rajasthan, India 1 20 April 18.7 2.1× Chittorgarh Rajasthan, India 1 21 April 33.8 2.1× Rajākheri Madhya Pradesh, India 1 21 April 22.4 2.0× Chūru Rajasthan, India 1 20 April 37.6 2.0×
Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.
Against other episodes in India
Number 18 of 54 episodes in India since our records began, by cities reached.
North-western India, October 2025 170 North-western India, September 2026 57 North-western India, July 2026 51 North-western India, June 2025 47 North-eastern India, March and April 2025 45 North-western India, November 2025 27 North-western India, April 2026 26 North-western India, April and May 2025 26 North-western India and Pakistan, March 2026 25 North-western India, May 2025 23 North-eastern India, July 2026 22 North-eastern India, April 2025 20 North-western India, April 2025 15 Bars: cities reached; colour: the level of the episode's highest daily reading. All 54 .
Use this page SmogRank, North-western India, April 2025: 15 cities with PM2.5 at twice their usual or more, 20 to 22 April 2025, smogrank.com/episodes/2025-04-north-western-india-2 (accessed 2 October 2026).
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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms .
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes . Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.
