SmogRank / Episodes / India
North-western India, 21 to 29 April 2026
For 9 days, from 21 to 29 April 2026, 26 cities in India had PM2.5 at least twice their usual for the time of year. The worst reading was Narnaul, Haryana, India: 323.0 µg/m³ on 29 April, about 6.0× its usual 53.6.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 26 in 1 country
Days 9 21 to 29 April 2026
Worst day 25 April 11 cities counted
Furthest above usual 6.1× Fatehābād
Day by day
Play 25 April 11 cities at twice their usual or more
Alwar Bharatpur Vrindāvan Bhiwadi Dhāruhera Faridabad Dera Māndi Gurugram Aya Nagar Agra Noida Dausa Delhi Bulandshahr Loni Bawāna Narela Charkhi Dādri Fīrozābād Sonīpat Jaipur Gwalior Sawai Madhopur Jhunjhunūn Tonk Sīkar Muzaffarnagar Hisar Morādābād Karnāl Chūru Thānesar Bareilly Bārān Yamuna Nagar Jhānsi Būndi Ajmer Kota Rishīkesh Patiāla Sirsa Dehradun Mohali Jhālāwār Chandigarh Gobindgarh Bhilwara Nāgaur Bathinda Hanumāngarh Ropar Kanpur Ludhiana Chittorgarh Bikaner Lucknow Sri Ganganagar Rājsamand Rajākheri Pāli Nandri Pratāpgarh Jodhpur Bhopal Damoh Udaipur Amritsar Ratlām Satna Lahore Bānswāra Maihar Jalor Sirohi Dūngarpur Faisalabad Saugor Baddi Najafgarh Ghāziābād Jīnd Dādri Bahadurgarh Panchkula Mānesar Palwal Jalandhar Dhaulpur Greater Noida Hāpur Bāghpat Panipat Ambāla Khurja Meerut Khanna Karauli Rohtak Bhiwāni Kaithal Narnaul Fatehābād 18 Apr 19 20 21 22 23 24 25 26 27 28 29 30 1 May 2 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
Rohtak Rohtak, 18 April: 66.7 µg/m³ Rohtak, 19 April: 95.4 µg/m³ Rohtak, 20 April: 97.3 µg/m³ Rohtak, 21 April: 111.0 µg/m³, 3.0× its usual 36.9 Rohtak, 22 April: 120.0 µg/m³, 3.3× its usual 36.9 Rohtak, 23 April: 105.0 µg/m³, 2.7× its usual 38.8 Rohtak, 24 April: 130.0 µg/m³, 3.5× its usual 37.3 Rohtak, 25 April: 124.0 µg/m³, 3.3× its usual 37.3 Rohtak, 26 April: 123.0 µg/m³, 3.0× its usual 40.5 Rohtak, 27 April: 122.0 µg/m³, 2.9× its usual 42.2 Rohtak, 28 April: 66.9 µg/m³ Rohtak, 29 April: 16.0 µg/m³ Rohtak, 30 April: 16.2 µg/m³ Rohtak, 1 May: 16.7 µg/m³ Rohtak, 2 May: 14.0 µg/m³ Baddi Baddi, 18 April: 46.7 µg/m³ Baddi, 19 April: 75.0 µg/m³ Baddi, 20 April: 76.7 µg/m³ Baddi, 21 April: 86.9 µg/m³, 2.0× its usual 42.6 Baddi, 22 April: 83.4 µg/m³ Baddi, 23 April: 70.4 µg/m³ Baddi, 24 April: 75.0 µg/m³ Baddi, 25 April: 73.8 µg/m³ Baddi, 26 April: 62.2 µg/m³ Baddi, 27 April: 59.1 µg/m³ Baddi, 28 April: 76.5 µg/m³ Baddi, 29 April: 40.4 µg/m³ Baddi, 30 April: 37.2 µg/m³ Baddi, 1 May: no reading Baddi, 2 May: 46.0 µg/m³ Bahadurgarh Bahadurgarh, 18 April: 75.5 µg/m³ Bahadurgarh, 19 April: 75.2 µg/m³ Bahadurgarh, 20 April: 72.7 µg/m³ Bahadurgarh, 21 April: 83.3 µg/m³, 2.0× its usual 41.4 Bahadurgarh, 22 April: 91.9 µg/m³, 2.2× its usual 41.4 Bahadurgarh, 23 April: 80.0 µg/m³ Bahadurgarh, 24 April: 80.1 µg/m³ Bahadurgarh, 25 April: 94.5 µg/m³, 2.2× its usual 42.7 Bahadurgarh, 26 April: 95.9 µg/m³, 2.2× its usual 44.4 Bahadurgarh, 27 April: 91.7 µg/m³ Bahadurgarh, 28 April: no reading Bahadurgarh, 29 April: no reading Bahadurgarh, 30 April: no reading Bahadurgarh, 1 May: 71.0 µg/m³ Bahadurgarh, 2 May: 69.4 µg/m³ Palwal Palwal, 18 April: no reading Palwal, 19 April: 46.6 µg/m³ Palwal, 20 April: 61.4 µg/m³ Palwal, 21 April: 72.2 µg/m³, 2.4× its usual 30.6 Palwal, 22 April: no reading Palwal, 23 April: 45.5 µg/m³ Palwal, 24 April: 32.3 µg/m³ Palwal, 25 April: 65.2 µg/m³, 2.2× its usual 30.2 Palwal, 26 April: no reading Palwal, 27 April: no reading Palwal, 28 April: 31.6 µg/m³ Palwal, 29 April: 24.7 µg/m³ Palwal, 30 April: 134.0 µg/m³ Palwal, 1 May: 149.0 µg/m³ Palwal, 2 May: no reading Karauli Karauli, 18 April: 54.0 µg/m³ Karauli, 19 April: 47.0 µg/m³ Karauli, 20 April: 33.0 µg/m³ Karauli, 21 April: 52.6 µg/m³, 2.1× its usual 24.7 Karauli, 22 April: 30.4 µg/m³ Karauli, 23 April: 28.5 µg/m³ Karauli, 24 April: no reading Karauli, 25 April: 98.0 µg/m³, 3.5× its usual 27.8 Karauli, 26 April: 48.9 µg/m³ Karauli, 27 April: 45.1 µg/m³ Karauli, 28 April: 95.0 µg/m³, 2.6× its usual 36.0 Karauli, 29 April: no reading Karauli, 30 April: 27.5 µg/m³ Karauli, 1 May: 28.1 µg/m³ Karauli, 2 May: 59.0 µg/m³ Khurja Khurja, 18 April: 54.6 µg/m³ Khurja, 19 April: 69.8 µg/m³ Khurja, 20 April: 52.1 µg/m³ Khurja, 21 April: 52.2 µg/m³ Khurja, 22 April: 81.0 µg/m³, 2.9× its usual 27.8 Khurja, 23 April: no reading Khurja, 24 April: no reading Khurja, 25 April: 71.0 µg/m³, 2.4× its usual 29.1 Khurja, 26 April: 66.0 µg/m³, 2.1× its usual 30.7 Khurja, 27 April: 64.3 µg/m³, 2.0× its usual 31.7 Khurja, 28 April: 39.7 µg/m³ Khurja, 29 April: 31.5 µg/m³ Khurja, 30 April: 44.8 µg/m³ Khurja, 1 May: 25.4 µg/m³ Khurja, 2 May: 43.2 µg/m³ Greater Noida Greater Noida, 18 April: 44.9 µg/m³ Greater Noida, 19 April: 73.1 µg/m³ Greater Noida, 20 April: 36.5 µg/m³ Greater Noida, 21 April: 54.8 µg/m³ Greater Noida, 22 April: 63.6 µg/m³, 2.0× its usual 31.1 Greater Noida, 23 April: 51.9 µg/m³ Greater Noida, 24 April: 79.9 µg/m³, 2.5× its usual 32.5 Greater Noida, 25 April: 69.9 µg/m³, 2.2× its usual 32.5 Greater Noida, 26 April: 54.4 µg/m³ Greater Noida, 27 April: 48.1 µg/m³ Greater Noida, 28 April: no reading Greater Noida, 29 April: 33.2 µg/m³ Greater Noida, 30 April: 46.4 µg/m³ Greater Noida, 1 May: 25.5 µg/m³ Greater Noida, 2 May: 37.5 µg/m³ Dhaulpur Dhaulpur, 18 April: no reading Dhaulpur, 19 April: 20.0 µg/m³ Dhaulpur, 20 April: 21.2 µg/m³ Dhaulpur, 21 April: no reading Dhaulpur, 22 April: 54.3 µg/m³, 2.3× its usual 24.0 Dhaulpur, 23 April: 24.8 µg/m³ Dhaulpur, 24 April: 28.2 µg/m³ Dhaulpur, 25 April: 40.4 µg/m³ Dhaulpur, 26 April: 42.5 µg/m³ Dhaulpur, 27 April: 41.4 µg/m³ Dhaulpur, 28 April: 44.4 µg/m³ Dhaulpur, 29 April: 64.7 µg/m³, 2.5× its usual 25.8 Dhaulpur, 30 April: 34.4 µg/m³ Dhaulpur, 1 May: 11.2 µg/m³ Dhaulpur, 2 May: 11.0 µg/m³ Saugor Saugor, 18 April: 39.9 µg/m³ Saugor, 19 April: 53.3 µg/m³ Saugor, 20 April: 42.1 µg/m³ Saugor, 21 April: 34.4 µg/m³ Saugor, 22 April: 53.2 µg/m³, 2.0× its usual 26.1 Saugor, 23 April: 45.0 µg/m³ Saugor, 24 April: 35.4 µg/m³ Saugor, 25 April: 37.0 µg/m³ Saugor, 26 April: 30.9 µg/m³ Saugor, 27 April: 24.4 µg/m³ Saugor, 28 April: 24.4 µg/m³ Saugor, 29 April: 25.7 µg/m³ Saugor, 30 April: 20.2 µg/m³ Saugor, 1 May: 18.1 µg/m³ Saugor, 2 May: 21.5 µg/m³ Bāghpat Bāghpat, 18 April: 53.7 µg/m³ Bāghpat, 19 April: 86.3 µg/m³ Bāghpat, 20 April: 61.2 µg/m³ Bāghpat, 21 April: 80.8 µg/m³ Bāghpat, 22 April: 84.6 µg/m³ Bāghpat, 23 April: 105.0 µg/m³, 2.3× its usual 44.7 Bāghpat, 24 April: no reading Bāghpat, 25 April: 111.0 µg/m³, 2.5× its usual 44.0 Bāghpat, 26 April: no reading Bāghpat, 27 April: no reading Bāghpat, 28 April: 75.6 µg/m³ Bāghpat, 29 April: no reading Bāghpat, 30 April: 59.2 µg/m³ Bāghpat, 1 May: 44.2 µg/m³ Bāghpat, 2 May: no reading Kaithal Kaithal, 18 April: 67.0 µg/m³ Kaithal, 19 April: 43.3 µg/m³ Kaithal, 20 April: 53.7 µg/m³ Kaithal, 21 April: 56.6 µg/m³ Kaithal, 22 April: 71.6 µg/m³ Kaithal, 23 April: 96.8 µg/m³, 2.9× its usual 33.9 Kaithal, 24 April: 93.0 µg/m³, 2.7× its usual 33.9 Kaithal, 25 April: 86.2 µg/m³, 2.5× its usual 33.9 Kaithal, 26 April: 86.7 µg/m³, 2.5× its usual 34.7 Kaithal, 27 April: 96.8 µg/m³, 2.4× its usual 40.5 Kaithal, 28 April: 224.0 µg/m³, 5.2× its usual 43.3 Kaithal, 29 April: 45.1 µg/m³ Kaithal, 30 April: no reading Kaithal, 1 May: no reading Kaithal, 2 May: 43.1 µg/m³ Panchkula Panchkula, 18 April: 39.9 µg/m³ Panchkula, 19 April: 50.7 µg/m³ Panchkula, 20 April: 43.1 µg/m³ Panchkula, 21 April: 59.0 µg/m³ Panchkula, 22 April: 62.3 µg/m³ Panchkula, 23 April: 81.4 µg/m³, 2.3× its usual 34.8 Panchkula, 24 April: 73.1 µg/m³, 2.1× its usual 34.9 Panchkula, 25 April: 78.7 µg/m³, 2.2× its usual 35.1 Panchkula, 26 April: 57.1 µg/m³ Panchkula, 27 April: 67.2 µg/m³ Panchkula, 28 April: no reading Panchkula, 29 April: 53.3 µg/m³ Panchkula, 30 April: 47.2 µg/m³ Panchkula, 1 May: 31.8 µg/m³ Panchkula, 2 May: 40.2 µg/m³ Ghāziābād Ghāziābād, 18 April: 70.9 µg/m³ Ghāziābād, 19 April: 109.0 µg/m³ Ghāziābād, 20 April: 51.8 µg/m³ Ghāziābād, 21 April: 66.3 µg/m³ Ghāziābād, 22 April: 79.6 µg/m³ Ghāziābād, 23 April: 71.6 µg/m³ Ghāziābād, 24 April: 122.0 µg/m³, 2.0× its usual 60.0 Ghāziābād, 25 April: 88.0 µg/m³ Ghāziābād, 26 April: 81.0 µg/m³ Ghāziābād, 27 April: 70.6 µg/m³ Ghāziābād, 28 April: 45.0 µg/m³ Ghāziābād, 29 April: 40.1 µg/m³ Ghāziābād, 30 April: 65.1 µg/m³ Ghāziābād, 1 May: 46.9 µg/m³ Ghāziābād, 2 May: 58.4 µg/m³ Ambāla Ambāla, 18 April: 62.9 µg/m³ Ambāla, 19 April: 30.5 µg/m³ Ambāla, 20 April: 5.0 µg/m³ Ambāla, 21 April: 4.1 µg/m³ Ambāla, 22 April: 14.2 µg/m³ Ambāla, 23 April: 48.8 µg/m³ Ambāla, 24 April: 119.0 µg/m³, 2.8× its usual 42.3 Ambāla, 25 April: 51.3 µg/m³ Ambāla, 26 April: 45.2 µg/m³ Ambāla, 27 April: 52.3 µg/m³ Ambāla, 28 April: 55.3 µg/m³ Ambāla, 29 April: 44.5 µg/m³ Ambāla, 30 April: 36.6 µg/m³ Ambāla, 1 May: 20.7 µg/m³ Ambāla, 2 May: 35.6 µg/m³ Dādri Dādri, 18 April: 85.7 µg/m³ Dādri, 19 April: 130.0 µg/m³ Dādri, 20 April: 56.5 µg/m³ Dādri, 21 April: 63.9 µg/m³ Dādri, 22 April: 92.3 µg/m³ Dādri, 23 April: 66.8 µg/m³ Dādri, 24 April: 118.0 µg/m³, 2.1× its usual 57.5 Dādri, 25 April: 93.8 µg/m³ Dādri, 26 April: 78.4 µg/m³ Dādri, 27 April: 68.7 µg/m³ Dādri, 28 April: 62.3 µg/m³ Dādri, 29 April: 52.4 µg/m³ Dādri, 30 April: 73.1 µg/m³ Dādri, 1 May: 50.4 µg/m³ Dādri, 2 May: 62.8 µg/m³ Meerut Meerut, 18 April: 42.9 µg/m³ Meerut, 19 April: 80.0 µg/m³ Meerut, 20 April: 36.5 µg/m³ Meerut, 21 April: 44.4 µg/m³ Meerut, 22 April: 60.7 µg/m³ Meerut, 23 April: 73.4 µg/m³ Meerut, 24 April: 114.0 µg/m³, 2.9× its usual 40.0 Meerut, 25 April: 66.9 µg/m³ Meerut, 26 April: 48.2 µg/m³ Meerut, 27 April: 69.7 µg/m³ Meerut, 28 April: 61.4 µg/m³ Meerut, 29 April: 32.8 µg/m³ Meerut, 30 April: 49.7 µg/m³ Meerut, 1 May: 26.6 µg/m³ Meerut, 2 May: 49.4 µg/m³ Hāpur Hāpur, 18 April: 46.7 µg/m³ Hāpur, 19 April: 118.0 µg/m³ Hāpur, 20 April: 55.9 µg/m³ Hāpur, 21 April: no reading Hāpur, 22 April: 79.5 µg/m³ Hāpur, 23 April: 77.6 µg/m³ Hāpur, 24 April: 109.0 µg/m³, 2.5× its usual 42.8 Hāpur, 25 April: 79.5 µg/m³ Hāpur, 26 April: 68.2 µg/m³ Hāpur, 27 April: 87.6 µg/m³, 2.0× its usual 42.8 Hāpur, 28 April: no reading Hāpur, 29 April: no reading Hāpur, 30 April: no reading Hāpur, 1 May: no reading Hāpur, 2 May: 58.5 µg/m³ Najafgarh Najafgarh, 18 April: 64.1 µg/m³ Najafgarh, 19 April: 85.5 µg/m³ Najafgarh, 20 April: 80.3 µg/m³ Najafgarh, 21 April: 79.1 µg/m³ Najafgarh, 22 April: 66.5 µg/m³ Najafgarh, 23 April: 52.9 µg/m³ Najafgarh, 24 April: no reading Najafgarh, 25 April: 118.0 µg/m³, 2.0× its usual 57.6 Najafgarh, 26 April: 87.5 µg/m³ Najafgarh, 27 April: 104.0 µg/m³ Najafgarh, 28 April: 54.7 µg/m³ Najafgarh, 29 April: 31.7 µg/m³ Najafgarh, 30 April: 37.2 µg/m³ Najafgarh, 1 May: 28.2 µg/m³ Najafgarh, 2 May: 41.3 µg/m³ Khanna Khanna, 18 April: 31.7 µg/m³ Khanna, 19 April: 40.2 µg/m³ Khanna, 20 April: 32.2 µg/m³ Khanna, 21 April: 27.2 µg/m³ Khanna, 22 April: 28.6 µg/m³ Khanna, 23 April: 30.0 µg/m³ Khanna, 24 April: 16.1 µg/m³ Khanna, 25 April: 106.0 µg/m³, 3.0× its usual 35.8 Khanna, 26 April: 51.1 µg/m³ Khanna, 27 April: 56.0 µg/m³ Khanna, 28 April: 49.9 µg/m³ Khanna, 29 April: 12.6 µg/m³ Khanna, 30 April: 6.1 µg/m³ Khanna, 1 May: 32.6 µg/m³ Khanna, 2 May: 32.5 µg/m³ Fatehābād Fatehābād, 18 April: no reading Fatehābād, 19 April: no reading Fatehābād, 20 April: no reading Fatehābād, 21 April: no reading Fatehābād, 22 April: no reading Fatehābād, 23 April: no reading Fatehābād, 24 April: no reading Fatehābād, 25 April: no reading Fatehābād, 26 April: 66.3 µg/m³, 2.3× its usual 28.8 Fatehābād, 27 April: 93.9 µg/m³, 3.1× its usual 29.9 Fatehābād, 28 April: 204.0 µg/m³, 6.1× its usual 33.4 Fatehābād, 29 April: 65.9 µg/m³ Fatehābād, 30 April: 56.5 µg/m³ Fatehābād, 1 May: no reading Fatehābād, 2 May: no reading Jīnd Jīnd, 18 April: 79.6 µg/m³ Jīnd, 19 April: 83.0 µg/m³ Jīnd, 20 April: 80.8 µg/m³ Jīnd, 21 April: 92.2 µg/m³ Jīnd, 22 April: 97.1 µg/m³ Jīnd, 23 April: 98.9 µg/m³ Jīnd, 24 April: 115.0 µg/m³ Jīnd, 25 April: 98.8 µg/m³ Jīnd, 26 April: 93.4 µg/m³ Jīnd, 27 April: 129.0 µg/m³, 2.0× its usual 64.1 Jīnd, 28 April: 130.0 µg/m³ Jīnd, 29 April: 59.7 µg/m³ Jīnd, 30 April: 73.7 µg/m³ Jīnd, 1 May: 58.6 µg/m³ Jīnd, 2 May: 139.0 µg/m³ Panipat Panipat, 18 April: 58.5 µg/m³ Panipat, 19 April: no reading Panipat, 20 April: no reading Panipat, 21 April: 54.3 µg/m³ Panipat, 22 April: 83.3 µg/m³ Panipat, 23 April: 110.0 µg/m³ Panipat, 24 April: 95.1 µg/m³ Panipat, 25 April: 75.8 µg/m³ Panipat, 26 April: 103.0 µg/m³ Panipat, 27 April: 117.0 µg/m³, 2.4× its usual 47.9 Panipat, 28 April: 140.0 µg/m³, 2.6× its usual 53.1 Panipat, 29 April: 124.0 µg/m³, 2.2× its usual 56.4 Panipat, 30 April: no reading Panipat, 1 May: 120.0 µg/m³ Panipat, 2 May: no reading Mānesar Mānesar, 18 April: no reading Mānesar, 19 April: 97.1 µg/m³ Mānesar, 20 April: 82.4 µg/m³ Mānesar, 21 April: 83.5 µg/m³ Mānesar, 22 April: 96.0 µg/m³ Mānesar, 23 April: 85.7 µg/m³ Mānesar, 24 April: 86.4 µg/m³ Mānesar, 25 April: 117.0 µg/m³ Mānesar, 26 April: no reading Mānesar, 27 April: no reading Mānesar, 28 April: 168.0 µg/m³, 2.3× its usual 73.1 Mānesar, 29 April: no reading Mānesar, 30 April: no reading Mānesar, 1 May: 49.5 µg/m³ Mānesar, 2 May: 58.4 µg/m³ Bhiwāni Bhiwāni, 18 April: 18.3 µg/m³ Bhiwāni, 19 April: no reading Bhiwāni, 20 April: no reading Bhiwāni, 21 April: 19.2 µg/m³ Bhiwāni, 22 April: 20.1 µg/m³ Bhiwāni, 23 April: 20.4 µg/m³ Bhiwāni, 24 April: 24.1 µg/m³ Bhiwāni, 25 April: 50.0 µg/m³ Bhiwāni, 26 April: no reading Bhiwāni, 27 April: no reading Bhiwāni, 28 April: 138.0 µg/m³, 3.7× its usual 37.4 Bhiwāni, 29 April: 125.0 µg/m³, 3.5× its usual 35.6 Bhiwāni, 30 April: 125.0 µg/m³ Bhiwāni, 1 May: no reading Bhiwāni, 2 May: no reading Narnaul Narnaul, 18 April: 54.1 µg/m³ Narnaul, 19 April: 64.8 µg/m³ Narnaul, 20 April: 64.8 µg/m³ Narnaul, 21 April: 62.2 µg/m³ Narnaul, 22 April: 62.5 µg/m³ Narnaul, 23 April: 47.7 µg/m³ Narnaul, 24 April: 62.4 µg/m³ Narnaul, 25 April: 72.9 µg/m³ Narnaul, 26 April: 74.9 µg/m³ Narnaul, 27 April: 88.0 µg/m³ Narnaul, 28 April: 116.0 µg/m³, 2.2× its usual 53.0 Narnaul, 29 April: 323.0 µg/m³, 6.0× its usual 53.6 Narnaul, 30 April: 240.0 µg/m³ Narnaul, 1 May: 100.0 µg/m³ Narnaul, 2 May: 88.8 µg/m³ Jalandhar Jalandhar, 18 April: 37.8 µg/m³ Jalandhar, 19 April: 49.4 µg/m³ Jalandhar, 20 April: 35.2 µg/m³ Jalandhar, 21 April: 36.6 µg/m³ Jalandhar, 22 April: 47.1 µg/m³ Jalandhar, 23 April: 56.6 µg/m³ Jalandhar, 24 April: 47.0 µg/m³ Jalandhar, 25 April: 39.9 µg/m³ Jalandhar, 26 April: 36.5 µg/m³ Jalandhar, 27 April: 39.9 µg/m³ Jalandhar, 28 April: 109.0 µg/m³, 2.4× its usual 44.6 Jalandhar, 29 April: 44.4 µg/m³ Jalandhar, 30 April: 47.3 µg/m³ Jalandhar, 1 May: 34.9 µg/m³ Jalandhar, 2 May: 60.6 µg/m³ 18 Apr 20 22 24 26 28 30 1 May 2 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
Fatehābād Haryana, India 3 28 April 33.4 6.1× Narnaul Haryana, India 2 29 April 53.6 6.0× Kaithal Haryana, India 6 28 April 43.3 5.2× Bhiwāni Haryana, India 2 28 April 37.4 3.7× Rohtak Haryana, India 7 24 April 37.3 3.5× Karauli Rajasthan, India 3 25 April 27.8 3.5× Khanna Punjab, India 1 25 April 35.8 3.0× Meerut Uttar Pradesh, India 1 24 April 40.0 2.9× Khurja Uttar Pradesh, India 4 22 April 27.8 2.9× Ambāla Haryana, India 1 24 April 42.3 2.8× Panipat Haryana, India 3 28 April 53.1 2.6× Bāghpat Uttar Pradesh, India 2 25 April 44.0 2.5× Hāpur Uttar Pradesh, India 2 24 April 42.8 2.5× Greater Noida Uttar Pradesh, India 3 24 April 32.5 2.5× Dhaulpur Rajasthan, India 2 29 April 25.8 2.5× Jalandhar Punjab, India 1 28 April 44.6 2.4× Palwal Haryana, India 2 21 April 30.6 2.4× Mānesar Haryana, India 1 28 April 73.1 2.3× Panchkula Haryana, India 3 23 April 34.8 2.3× Bahadurgarh Haryana, India 4 26 April 44.4 2.2× Dādri Uttar Pradesh, India 1 24 April 57.5 2.1× Jīnd Haryana, India 1 27 April 64.1 2.0× Ghāziābād Uttar Pradesh, India 1 24 April 60.0 2.0× Najafgarh Delhi, India 1 25 April 57.6 2.0× Baddi Himachal Pradesh, India 1 21 April 42.6 2.0× Saugor Madhya Pradesh, India 1 22 April 26.1 2.0×
Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.
Against other episodes in India
Number 7 of 55 episodes in India since our records began, by cities reached.
India and Pakistan, October 2025 170 Western India and Pakistan, September 2026 57 North-western India, 9 to 20 July 2026 51 Northern India and Pakistan, June 2025 48 Northern India, March and April 2025 45 North-western India, November 2025 27 North-western India, 21 to 29 April 2026 26 North-western India and Pakistan, April and May 2025 26 North-western India and Pakistan, March 2026 25 North-western India, 15 to 16 May 2025 23 North-eastern India, July 2026 21 North-eastern India, April 2025 20 Bars: cities reached; colour: the level of the episode's highest daily reading. All 55 .
Use this page SmogRank, North-western India, 21 to 29 April 2026: 26 cities with PM2.5 at twice their usual or more, 21 to 29 April 2026, smogrank.com/episodes/2026-04-21-north-western-india (accessed 4 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.
