SmogRank / Episodes / India
North-western India, April 2026
For 1 day, on 17 April 2026, 14 cities in India had PM2.5 at least twice their usual for the time of year. The worst reading was Gurugram, Haryana, India: 182.5 µg/m³ on 17 April, about 2.3× its usual 80.3.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 14 in 1 country
Days 1 17 April 2026
Worst day 17 April 14 cities counted
Furthest above usual 5.6× Dhaulpur
Day by day
Play 17 April 14 cities at twice their usual or more
Dausa Jaipur Sawai Madhopur Karauli Alwar Narnaul Sīkar Būndi Bharatpur Ajmer Kota Jhunjhunūn Dhāruhera Bhiwadi Vrindāvan Mānesar Palwal Charkhi Dādri Agra Chūru Dera Māndi Aya Nagar Faridabad Najafgarh Bhilwara Bhiwāni Gwalior Bahadurgarh Jhālāwār Delhi Bawāna Fīrozābād Loni Ghāziābād Bulandshahr Chittorgarh Sonīpat Bāghpat Hisar Nāgaur Jīnd Meerut Jhānsi Panipat Rājsamand Fatehābād Pāli Sirsa Pratāpgarh Karnāl Kaithal Nandri Bikaner Muzaffarnagar Jodhpur Udaipur Thānesar Morādābād Hanumāngarh Yamuna Nagar Ratlām Patiāla Bareilly Ambāla Dewas Dūngarpur Sirohi Jalor Saugor Rajākheri Mandideep Sri Ganganagar Gobindgarh Khanna Mohali Rishīkesh Panchkula Indore Dehradun Chandigarh Kanpur Damoh Gandhinagar Ahmedabad Jabalpur Bahawalpur Bānswāra Noida Bārān Bhopal Dādri Hāpur Khurja Narela Gurugram Bathinda Greater Noida Tonk Rohtak Dhaulpur 14 Apr 15 16 17 18 19 20 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
Gurugram Gurugram, 14 April: 135.0 µg/m³, 1.7× usual Gurugram, 15 April: 207.0 µg/m³, 2.6× usual Gurugram, 16 April: no reading Gurugram, 17 April: 182.5 µg/m³, 2.3× usual Gurugram, 18 April: 114.1 µg/m³, 1.4× usual Gurugram, 19 April: 124.0 µg/m³, 1.5× usual Gurugram, 20 April: 107.3 µg/m³, 1.3× usual Narela Narela, 14 April: 100.0 µg/m³, 1.3× usual Narela, 15 April: 112.0 µg/m³, 1.5× usual Narela, 16 April: no reading Narela, 17 April: 155.0 µg/m³, 2.1× usual Narela, 18 April: 103.0 µg/m³, 1.4× usual Narela, 19 April: 151.0 µg/m³, 2.0× usual Narela, 20 April: 69.1 µg/m³, 0.9× usual Rohtak Rohtak, 14 April: 16.6 µg/m³, 0.4× usual Rohtak, 15 April: 67.9 µg/m³, 1.6× usual Rohtak, 16 April: no reading Rohtak, 17 April: 154.0 µg/m³, 3.6× usual Rohtak, 18 April: 66.7 µg/m³, 1.6× usual Rohtak, 19 April: 95.4 µg/m³, 2.3× usual Rohtak, 20 April: 97.3 µg/m³, 2.3× usual Dhaulpur Dhaulpur, 14 April: no reading Dhaulpur, 15 April: no reading Dhaulpur, 16 April: no reading Dhaulpur, 17 April: 138.0 µg/m³, 5.6× usual Dhaulpur, 18 April: no reading Dhaulpur, 19 April: 20.0 µg/m³, 0.8× usual Dhaulpur, 20 April: 21.2 µg/m³, 0.9× usual Dādri Dādri, 14 April: 79.0 µg/m³, 1.2× usual Dādri, 15 April: 119.0 µg/m³, 1.9× usual Dādri, 16 April: no reading Dādri, 17 April: 134.0 µg/m³, 2.1× usual Dādri, 18 April: 85.7 µg/m³, 1.3× usual Dādri, 19 April: 130.0 µg/m³, 2.0× usual Dādri, 20 April: 56.5 µg/m³, 0.9× usual Tonk Tonk, 14 April: 48.2 µg/m³, 1.5× usual Tonk, 15 April: 43.3 µg/m³, 1.3× usual Tonk, 16 April: no reading Tonk, 17 April: 110.0 µg/m³, 3.4× usual Tonk, 18 April: 48.1 µg/m³, 1.5× usual Tonk, 19 April: 34.9 µg/m³, 1.1× usual Tonk, 20 April: 32.2 µg/m³, 1.0× usual Noida Noida, 14 April: 62.1 µg/m³, 1.2× usual Noida, 15 April: 77.2 µg/m³, 1.5× usual Noida, 16 April: no reading Noida, 17 April: 104.7 µg/m³, 2.1× usual Noida, 18 April: 74.1 µg/m³, 1.5× usual Noida, 19 April: 124.5 µg/m³, 2.5× usual Noida, 20 April: 50.7 µg/m³, 1.0× usual Hāpur Hāpur, 14 April: 74.5 µg/m³, 1.8× usual Hāpur, 15 April: 86.6 µg/m³, 2.1× usual Hāpur, 16 April: no reading Hāpur, 17 April: 87.3 µg/m³, 2.1× usual Hāpur, 18 April: 46.7 µg/m³, 1.1× usual Hāpur, 19 April: 118.0 µg/m³, 2.9× usual Hāpur, 20 April: 55.9 µg/m³, 1.4× usual Greater Noida Greater Noida, 14 April: 51.5 µg/m³, 1.7× usual Greater Noida, 15 April: 58.6 µg/m³, 1.9× usual Greater Noida, 16 April: no reading Greater Noida, 17 April: 78.1 µg/m³, 2.5× usual Greater Noida, 18 April: 44.9 µg/m³, 1.4× usual Greater Noida, 19 April: 73.1 µg/m³, 2.4× usual Greater Noida, 20 April: 36.5 µg/m³, 1.2× usual Bānswāra Bānswāra, 14 April: no reading Bānswāra, 15 April: 33.0 µg/m³, 0.9× usual Bānswāra, 16 April: no reading Bānswāra, 17 April: 77.8 µg/m³, 2.0× usual Bānswāra, 18 April: 59.2 µg/m³, 1.5× usual Bānswāra, 19 April: 126.0 µg/m³, 3.3× usual Bānswāra, 20 April: 35.8 µg/m³, 0.9× usual Bathinda Bathinda, 14 April: 32.6 µg/m³, 1.1× usual Bathinda, 15 April: 31.0 µg/m³, 1.1× usual Bathinda, 16 April: no reading Bathinda, 17 April: 70.0 µg/m³, 2.4× usual Bathinda, 18 April: 35.9 µg/m³, 1.2× usual Bathinda, 19 April: 33.7 µg/m³, 1.1× usual Bathinda, 20 April: 34.0 µg/m³, 1.2× usual Bārān Bārān, 14 April: 44.0 µg/m³, 1.5× usual Bārān, 15 April: 31.8 µg/m³, 1.1× usual Bārān, 16 April: no reading Bārān, 17 April: 61.1 µg/m³, 2.1× usual Bārān, 18 April: 46.3 µg/m³, 1.6× usual Bārān, 19 April: 44.1 µg/m³, 1.5× usual Bārān, 20 April: 61.6 µg/m³, 2.1× usual Khurja Khurja, 14 April: 63.8 µg/m³, 2.2× usual Khurja, 15 April: 58.5 µg/m³, 2.0× usual Khurja, 16 April: no reading Khurja, 17 April: 60.3 µg/m³, 2.1× usual Khurja, 18 April: 54.6 µg/m³, 1.9× usual Khurja, 19 April: 69.8 µg/m³, 2.4× usual Khurja, 20 April: 52.1 µg/m³, 1.8× usual Bhopal Bhopal, 14 April: 47.7 µg/m³, 1.7× usual Bhopal, 15 April: 53.9 µg/m³, 1.9× usual Bhopal, 16 April: no reading Bhopal, 17 April: 60.1 µg/m³, 2.1× usual Bhopal, 18 April: 41.9 µg/m³, 1.5× usual Bhopal, 19 April: 45.5 µg/m³, 1.6× usual Bhopal, 20 April: 33.1 µg/m³, 1.2× usual 14 Apr 15 16 17 18 19 20 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
Dhaulpur Rajasthan, India 1 17 April 24.5 5.6× Rohtak Haryana, India 1 17 April 42.4 3.6× Tonk Rajasthan, India 1 17 April 32.2 3.4× Bānswāra Rajasthan, India 1 19 April 38.2 3.3× Hāpur Uttar Pradesh, India 1 19 April 41.2 2.9× Gurugram Haryana, India 1 15 April 80.3 2.6× Greater Noida Uttar Pradesh, India 1 17 April 31.1 2.5× Noida Uttar Pradesh, India 1 19 April 49.9 2.5× Khurja Uttar Pradesh, India 1 19 April 28.9 2.4× Bathinda Punjab, India 1 17 April 29.4 2.4× Bhopal Madhya Pradesh, India 1 17 April 28.5 2.1× Dādri Uttar Pradesh, India 1 17 April 63.9 2.1× Narela Delhi, India 1 17 April 74.4 2.1× Bārān Rajasthan, India 1 20 April 29.6 2.1×
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 20 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 2026 14 Bars: cities reached; colour: the level of the episode's highest daily reading. All 54 .
Use this page SmogRank, North-western India, April 2026: 14 cities with PM2.5 at twice their usual or more, 17 April 2026, smogrank.com/episodes/2026-04-north-western-india (accessed 3 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.
