SmogRank / Episodes / India
North-eastern India, March and April 2025
For 15 days, from 23 March to 6 April 2025, 45 cities in India had PM2.5 at least twice their usual for the time of year. The worst reading was Loni, Uttar Pradesh, India: 255.0 µg/m³ on 23 March, about 2.3× its usual 110.0.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 45 in 1 country
Days 15 23 March to 6 April 2025
Worst day 27 March 19 cities counted
Furthest above usual 8.9× Rishīkesh
Day by day
Play 27 March 19 cities at twice their usual or more
Buxar Arrah Chāpra Varanasi Gorakhpur Patna Muzaffarpur Gaya Singrauli Begusarai Kathmandu Saharsa Bhāgalpur Lucknow Satna Arāria Kanpur Barbil Kishanganj Belpahar Joda Bilāspur Damoh Angul Raipur Bareilly Bhilai Byasanagar Durg Kolkata Rajākheri Haldia Saugor Cuttack Fīrozābād Gwalior Bhubaneswar Morādābād Agra Dhaulpur Vrindāvan Khurja Bharatpur Bulandshahr Dhaka Nagpur Hāpur Greater Noida Dādri Karauli Mandideep Meerut Bhopal Faridabad Noida Dera Māndi Delhi Aya Nagar Gurugram Bārān Bhiwadi Narela Najafgarh Agartala Bawāna Alwar Dausa Jhālāwār Amravati Kota Charkhi Dādri Tonk Jaipur Būndi Dewas Ujjain Akola Chandigarh Indore Baddi Silchar Pithampur Jhunjhunūn Aizawl Sīkar Ropar Gobindgarh Khanna Ratlām Chūru Bhilwara Ajmer Pratāpgarh Chittorgarh Ludhiana Jalgaon Bānswāra Jalandhar Bathinda Rājsamand Nāgaur Udaipur Dhule Dūngarpur Pāli Malegaon Bikaner Nandri Jodhpur Sirohi Jalor Undera Gandhinagar Ahmedabad Ankleshwar Surat Vapi Hājīpur Āsansol Dehradun Sawai Madhopur Rājgīr Jabalpur Keonjhargarh Katihar Munger Sasarām Sri Ganganagar Baripāda Durgapur Bāghpat Dera Colliery Township Naharlagun Nalbāri Patiāla Mohali Loni Bhelai Purnia Prayagraj Ghāziābād Muzaffarnagar Shillong Jhānsi Rānīganj Shrīrāmpur Mothīhāri Bihār Sharīf Bettiah Samāstipur Hanumāngarh Nagaon Guwahati Kohima Gangtok Rairangpur Rourkela Siliguri Maihar Siwān Aurangābād Rishīkesh 20 Mar 23 26 29 1 Apr 4 7 9 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
Nalbāri Nalbāri, 20 March: 127.0 µg/m³, 2.5× usual Nalbāri, 21 March: 130.0 µg/m³, 2.6× usual Nalbāri, 22 March: 124.0 µg/m³, 2.5× usual Nalbāri, 23 March: 133.0 µg/m³, 2.6× usual Nalbāri, 24 March: no reading Nalbāri, 25 March: 133.0 µg/m³, 2.6× usual Nalbāri, 26 March: no reading Nalbāri, 27 March: 115.0 µg/m³, 2.3× usual Nalbāri, 28 March: 94.5 µg/m³, 1.9× usual Nalbāri, 29 March: no reading Nalbāri, 30 March: no reading Nalbāri, 31 March: no reading Nalbāri, 1 April: 72.0 µg/m³, 1.4× usual Nalbāri, 2 April: no reading Nalbāri, 3 April: no reading Nalbāri, 4 April: 81.2 µg/m³, 1.6× usual Nalbāri, 5 April: 91.8 µg/m³, 1.8× usual Nalbāri, 6 April: 60.8 µg/m³, 1.2× usual Nalbāri, 7 April: 80.0 µg/m³, 1.6× usual Nalbāri, 8 April: 81.2 µg/m³, 1.6× usual Nalbāri, 9 April: no reading Siliguri Siliguri, 20 March: 98.5 µg/m³, 3.1× usual Siliguri, 21 March: 89.2 µg/m³, 2.8× usual Siliguri, 22 March: 65.3 µg/m³, 2.0× usual Siliguri, 23 March: 41.1 µg/m³, 1.3× usual Siliguri, 24 March: 45.1 µg/m³, 1.4× usual Siliguri, 25 March: 73.6 µg/m³, 2.3× usual Siliguri, 26 March: no reading Siliguri, 27 March: 101.0 µg/m³, 3.1× usual Siliguri, 28 March: 88.0 µg/m³, 2.7× usual Siliguri, 29 March: 95.3 µg/m³, 3.0× usual Siliguri, 30 March: 93.8 µg/m³, 2.9× usual Siliguri, 31 March: 125.0 µg/m³, 3.9× usual Siliguri, 1 April: no reading Siliguri, 2 April: 72.2 µg/m³, 2.2× usual Siliguri, 3 April: 99.2 µg/m³, 3.1× usual Siliguri, 4 April: 116.0 µg/m³, 3.6× usual Siliguri, 5 April: 93.7 µg/m³, 2.9× usual Siliguri, 6 April: 81.9 µg/m³, 2.6× usual Siliguri, 7 April: 58.0 µg/m³, 1.8× usual Siliguri, 8 April: 65.2 µg/m³, 2.0× usual Siliguri, 9 April: no reading Shillong Shillong, 20 March: 98.1 µg/m³, 4.9× usual Shillong, 21 March: 74.6 µg/m³, 3.7× usual Shillong, 22 March: 22.3 µg/m³, 1.1× usual Shillong, 23 March: 60.6 µg/m³, 3.0× usual Shillong, 24 March: 37.0 µg/m³, 1.9× usual Shillong, 25 March: 53.3 µg/m³, 2.7× usual Shillong, 26 March: 62.1 µg/m³, 3.1× usual Shillong, 27 March: 51.4 µg/m³, 2.6× usual Shillong, 28 March: 40.7 µg/m³, 2.0× usual Shillong, 29 March: 28.9 µg/m³, 1.5× usual Shillong, 30 March: 52.2 µg/m³, 2.6× usual Shillong, 31 March: 49.4 µg/m³, 2.5× usual Shillong, 1 April: 37.6 µg/m³, 1.9× usual Shillong, 2 April: 34.0 µg/m³, 1.7× usual Shillong, 3 April: 36.1 µg/m³, 1.8× usual Shillong, 4 April: 29.4 µg/m³, 1.5× usual Shillong, 5 April: 29.3 µg/m³, 1.5× usual Shillong, 6 April: 44.2 µg/m³, 2.2× usual Shillong, 7 April: 39.9 µg/m³, 2.0× usual Shillong, 8 April: 38.2 µg/m³, 1.9× usual Shillong, 9 April: no reading Kohima Kohima, 20 March: 82.9 µg/m³, 3.1× usual Kohima, 21 March: 47.6 µg/m³, 1.8× usual Kohima, 22 March: 33.1 µg/m³, 1.2× usual Kohima, 23 March: 31.2 µg/m³, 1.2× usual Kohima, 24 March: 39.4 µg/m³, 1.5× usual Kohima, 25 March: 39.9 µg/m³, 1.5× usual Kohima, 26 March: 55.2 µg/m³, 2.0× usual Kohima, 27 March: 78.7 µg/m³, 2.9× usual Kohima, 28 March: 87.7 µg/m³, 3.2× usual Kohima, 29 March: 79.3 µg/m³, 2.9× usual Kohima, 30 March: 80.0 µg/m³, 3.0× usual Kohima, 31 March: 80.8 µg/m³, 3.0× usual Kohima, 1 April: 68.4 µg/m³, 2.5× usual Kohima, 2 April: 61.9 µg/m³, 2.3× usual Kohima, 3 April: 61.2 µg/m³, 2.3× usual Kohima, 4 April: 65.5 µg/m³, 2.4× usual Kohima, 5 April: 61.7 µg/m³, 2.3× usual Kohima, 6 April: 59.4 µg/m³, 2.2× usual Kohima, 7 April: 2.5 µg/m³, 0.1× usual Kohima, 8 April: 0.1 µg/m³, 0.0× usual Kohima, 9 April: no reading Prayagraj Prayagraj, 20 March: 68.8 µg/m³, 2.7× usual Prayagraj, 21 March: 46.9 µg/m³, 1.9× usual Prayagraj, 22 March: 34.0 µg/m³, 1.4× usual Prayagraj, 23 March: 24.7 µg/m³, 1.0× usual Prayagraj, 24 March: 49.6 µg/m³, 2.0× usual Prayagraj, 25 March: 59.8 µg/m³, 2.4× usual Prayagraj, 26 March: 39.7 µg/m³, 1.6× usual Prayagraj, 27 March: 35.8 µg/m³, 1.4× usual Prayagraj, 28 March: 38.5 µg/m³, 1.5× usual Prayagraj, 29 March: 25.2 µg/m³, 1.0× usual Prayagraj, 30 March: 28.2 µg/m³, 1.1× usual Prayagraj, 31 March: 27.3 µg/m³, 1.1× usual Prayagraj, 1 April: 27.6 µg/m³, 1.1× usual Prayagraj, 2 April: 42.1 µg/m³, 1.7× usual Prayagraj, 3 April: 39.8 µg/m³, 1.6× usual Prayagraj, 4 April: 40.4 µg/m³, 1.6× usual Prayagraj, 5 April: 44.2 µg/m³, 1.8× usual Prayagraj, 6 April: 39.7 µg/m³, 1.6× usual Prayagraj, 7 April: 47.8 µg/m³, 1.9× usual Prayagraj, 8 April: 40.6 µg/m³, 1.6× usual Prayagraj, 9 April: no reading Rishīkesh Rishīkesh, 20 March: 34.2 µg/m³, 6.8× usual Rishīkesh, 21 March: 29.6 µg/m³, 5.9× usual Rishīkesh, 22 March: 35.4 µg/m³, 7.1× usual Rishīkesh, 23 March: 44.3 µg/m³, 8.9× usual Rishīkesh, 24 March: no reading Rishīkesh, 25 March: no reading Rishīkesh, 26 March: 97.6 µg/m³, 20× usual Rishīkesh, 27 March: 38.1 µg/m³, 7.6× usual Rishīkesh, 28 March: 33.3 µg/m³, 6.7× usual Rishīkesh, 29 March: 36.9 µg/m³, 7.4× usual Rishīkesh, 30 March: 25.4 µg/m³, 5.1× usual Rishīkesh, 31 March: 30.7 µg/m³, 6.1× usual Rishīkesh, 1 April: 29.0 µg/m³, 5.8× usual Rishīkesh, 2 April: 43.6 µg/m³, 8.7× usual Rishīkesh, 3 April: 41.0 µg/m³, 8.2× usual Rishīkesh, 4 April: 37.9 µg/m³, 7.6× usual Rishīkesh, 5 April: 42.4 µg/m³, 8.5× usual Rishīkesh, 6 April: 42.6 µg/m³, 8.5× usual Rishīkesh, 7 April: 38.5 µg/m³, 7.7× usual Rishīkesh, 8 April: 63.5 µg/m³, 13× usual Rishīkesh, 9 April: no reading Siwān Siwān, 20 March: no reading Siwān, 21 March: 119.0 µg/m³, 3.4× usual Siwān, 22 March: no reading Siwān, 23 March: no reading Siwān, 24 March: no reading Siwān, 25 March: 144.0 µg/m³, 4.1× usual Siwān, 26 March: 146.0 µg/m³, 4.2× usual Siwān, 27 March: no reading Siwān, 28 March: no reading Siwān, 29 March: 47.2 µg/m³, 1.4× usual Siwān, 30 March: 63.3 µg/m³, 1.8× usual Siwān, 31 March: 85.2 µg/m³, 2.4× usual Siwān, 1 April: 85.8 µg/m³, 2.5× usual Siwān, 2 April: 70.0 µg/m³, 2.0× usual Siwān, 3 April: 85.4 µg/m³, 2.5× usual Siwān, 4 April: 74.2 µg/m³, 2.1× usual Siwān, 5 April: 90.6 µg/m³, 2.6× usual Siwān, 6 April: no reading Siwān, 7 April: no reading Siwān, 8 April: no reading Siwān, 9 April: no reading Guwahati Guwahati, 20 March: 87.8 µg/m³, 2.5× usual Guwahati, 21 March: 113.2 µg/m³, 3.3× usual Guwahati, 22 March: 92.0 µg/m³, 2.6× usual Guwahati, 23 March: 122.0 µg/m³, 3.5× usual Guwahati, 24 March: 92.7 µg/m³, 2.7× usual Guwahati, 25 March: 123.0 µg/m³, 3.5× usual Guwahati, 26 March: 126.0 µg/m³, 3.6× usual Guwahati, 27 March: 112.0 µg/m³, 3.2× usual Guwahati, 28 March: 112.0 µg/m³, 3.2× usual Guwahati, 29 March: 67.9 µg/m³, 2.0× usual Guwahati, 30 March: 83.8 µg/m³, 2.4× usual Guwahati, 31 March: 86.9 µg/m³, 2.5× usual Guwahati, 1 April: 92.6 µg/m³, 2.7× usual Guwahati, 2 April: 82.8 µg/m³, 2.4× usual Guwahati, 3 April: 96.2 µg/m³, 2.8× usual Guwahati, 4 April: 101.0 µg/m³, 2.9× usual Guwahati, 5 April: 98.6 µg/m³, 2.8× usual Guwahati, 6 April: 56.9 µg/m³, 1.6× usual Guwahati, 7 April: 52.9 µg/m³, 1.5× usual Guwahati, 8 April: 90.2 µg/m³, 2.6× usual Guwahati, 9 April: no reading Sri Ganganagar Sri Ganganagar, 20 March: 58.3 µg/m³, 1.9× usual Sri Ganganagar, 21 March: 72.2 µg/m³, 2.3× usual Sri Ganganagar, 22 March: 61.0 µg/m³, 2.0× usual Sri Ganganagar, 23 March: 55.2 µg/m³, 1.8× usual Sri Ganganagar, 24 March: 64.4 µg/m³, 2.1× usual Sri Ganganagar, 25 March: 65.3 µg/m³, 2.1× usual Sri Ganganagar, 26 March: 69.3 µg/m³, 2.3× usual Sri Ganganagar, 27 March: 43.7 µg/m³, 1.4× usual Sri Ganganagar, 28 March: 48.3 µg/m³, 1.6× usual Sri Ganganagar, 29 March: 46.3 µg/m³, 1.5× usual Sri Ganganagar, 30 March: 42.6 µg/m³, 1.4× usual Sri Ganganagar, 31 March: 53.7 µg/m³, 1.7× usual Sri Ganganagar, 1 April: 82.4 µg/m³, 2.7× usual Sri Ganganagar, 2 April: 69.8 µg/m³, 2.3× usual Sri Ganganagar, 3 April: 55.9 µg/m³, 1.8× usual Sri Ganganagar, 4 April: 40.2 µg/m³, 1.3× usual Sri Ganganagar, 5 April: 59.6 µg/m³, 1.9× usual Sri Ganganagar, 6 April: 72.0 µg/m³, 2.3× usual Sri Ganganagar, 7 April: 49.5 µg/m³, 1.6× usual Sri Ganganagar, 8 April: 64.4 µg/m³, 2.1× usual Sri Ganganagar, 9 April: no reading Gangtok Gangtok, 20 March: 57.1 µg/m³, 2.4× usual Gangtok, 21 March: 55.6 µg/m³, 2.3× usual Gangtok, 22 March: no reading Gangtok, 23 March: no reading Gangtok, 24 March: no reading Gangtok, 25 March: 28.0 µg/m³, 1.2× usual Gangtok, 26 March: 51.0 µg/m³, 2.1× usual Gangtok, 27 March: 63.2 µg/m³, 2.6× usual Gangtok, 28 March: 70.6 µg/m³, 2.9× usual Gangtok, 29 March: 70.9 µg/m³, 3.0× usual Gangtok, 30 March: 67.0 µg/m³, 2.8× usual Gangtok, 31 March: 61.1 µg/m³, 2.5× usual Gangtok, 1 April: 62.5 µg/m³, 2.6× usual Gangtok, 2 April: 74.5 µg/m³, 3.1× usual Gangtok, 3 April: 75.5 µg/m³, 3.1× usual Gangtok, 4 April: 79.5 µg/m³, 3.3× usual Gangtok, 5 April: 72.4 µg/m³, 3.0× usual Gangtok, 6 April: 73.8 µg/m³, 3.1× usual Gangtok, 7 April: no reading Gangtok, 8 April: no reading Gangtok, 9 April: no reading Aurangābād Aurangābād, 20 March: no reading Aurangābād, 21 March: 43.0 µg/m³, 2.1× usual Aurangābād, 22 March: 69.4 µg/m³, 3.4× usual Aurangābād, 23 March: 98.4 µg/m³, 4.8× usual Aurangābād, 24 March: 86.0 µg/m³, 4.2× usual Aurangābād, 25 March: 82.0 µg/m³, 4.0× usual Aurangābād, 26 March: 78.5 µg/m³, 3.8× usual Aurangābād, 27 March: 159.0 µg/m³, 7.8× usual Aurangābād, 28 March: 81.2 µg/m³, 4.0× usual Aurangābād, 29 March: 82.8 µg/m³, 4.0× usual Aurangābād, 30 March: 93.7 µg/m³, 4.6× usual Aurangābād, 31 March: 93.1 µg/m³, 4.5× usual Aurangābād, 1 April: 74.1 µg/m³, 3.6× usual Aurangābād, 2 April: 94.1 µg/m³, 4.6× usual Aurangābād, 3 April: 88.7 µg/m³, 4.3× usual Aurangābād, 4 April: 67.4 µg/m³, 3.3× usual Aurangābād, 5 April: 94.7 µg/m³, 4.6× usual Aurangābād, 6 April: 88.4 µg/m³, 4.3× usual Aurangābād, 7 April: 85.2 µg/m³, 4.2× usual Aurangābād, 8 April: 78.0 µg/m³, 3.8× usual Aurangābād, 9 April: no reading Hanumāngarh Hanumāngarh, 20 March: 48.2 µg/m³, 1.8× usual Hanumāngarh, 21 March: no reading Hanumāngarh, 22 March: 79.0 µg/m³, 3.0× usual Hanumāngarh, 23 March: 76.5 µg/m³, 2.9× usual Hanumāngarh, 24 March: 65.7 µg/m³, 2.5× usual Hanumāngarh, 25 March: no reading Hanumāngarh, 26 March: 62.4 µg/m³, 2.4× usual Hanumāngarh, 27 March: 45.8 µg/m³, 1.7× usual Hanumāngarh, 28 March: 53.9 µg/m³, 2.0× usual Hanumāngarh, 29 March: 69.9 µg/m³, 2.6× usual Hanumāngarh, 30 March: 75.3 µg/m³, 2.8× usual Hanumāngarh, 31 March: 61.5 µg/m³, 2.3× usual Hanumāngarh, 1 April: 74.0 µg/m³, 2.8× usual Hanumāngarh, 2 April: 58.4 µg/m³, 2.2× usual Hanumāngarh, 3 April: 48.8 µg/m³, 1.8× usual Hanumāngarh, 4 April: 50.1 µg/m³, 1.9× usual Hanumāngarh, 5 April: 68.0 µg/m³, 2.6× usual Hanumāngarh, 6 April: 51.2 µg/m³, 1.9× usual Hanumāngarh, 7 April: 50.4 µg/m³, 1.9× usual Hanumāngarh, 8 April: 63.4 µg/m³, 2.4× usual Hanumāngarh, 9 April: no reading Loni Loni, 20 March: 161.0 µg/m³, 1.5× usual Loni, 21 March: 158.0 µg/m³, 1.4× usual Loni, 22 March: 199.0 µg/m³, 1.8× usual Loni, 23 March: 255.0 µg/m³, 2.3× usual Loni, 24 March: no reading Loni, 25 March: no reading Loni, 26 March: 287.0 µg/m³, 2.6× usual Loni, 27 March: 326.0 µg/m³, 3.0× usual Loni, 28 March: 219.0 µg/m³, 2.0× usual Loni, 29 March: 166.0 µg/m³, 1.5× usual Loni, 30 March: 159.0 µg/m³, 1.4× usual Loni, 31 March: 172.0 µg/m³, 1.6× usual Loni, 1 April: 188.0 µg/m³, 1.7× usual Loni, 2 April: 271.0 µg/m³, 2.5× usual Loni, 3 April: 263.0 µg/m³, 2.4× usual Loni, 4 April: 248.0 µg/m³, 2.3× usual Loni, 5 April: no reading Loni, 6 April: 198.0 µg/m³, 1.8× usual Loni, 7 April: 121.0 µg/m³, 1.1× usual Loni, 8 April: 115.0 µg/m³, 1.0× usual Loni, 9 April: no reading Muzaffarnagar Muzaffarnagar, 20 March: 84.1 µg/m³, 1.6× usual Muzaffarnagar, 21 March: 57.8 µg/m³, 1.1× usual Muzaffarnagar, 22 March: 78.9 µg/m³, 1.5× usual Muzaffarnagar, 23 March: 131.0 µg/m³, 2.5× usual Muzaffarnagar, 24 March: no reading Muzaffarnagar, 25 March: 116.0 µg/m³, 2.2× usual Muzaffarnagar, 26 March: no reading Muzaffarnagar, 27 March: 74.7 µg/m³, 1.4× usual Muzaffarnagar, 28 March: 66.1 µg/m³, 1.2× usual Muzaffarnagar, 29 March: 53.9 µg/m³, 1.0× usual Muzaffarnagar, 30 March: 40.7 µg/m³, 0.8× usual Muzaffarnagar, 31 March: 43.7 µg/m³, 0.8× usual Muzaffarnagar, 1 April: 48.0 µg/m³, 0.9× usual Muzaffarnagar, 2 April: 48.4 µg/m³, 0.9× usual Muzaffarnagar, 3 April: 60.3 µg/m³, 1.1× usual Muzaffarnagar, 4 April: 50.9 µg/m³, 1.0× usual Muzaffarnagar, 5 April: 38.8 µg/m³, 0.7× usual Muzaffarnagar, 6 April: 60.3 µg/m³, 1.1× usual Muzaffarnagar, 7 April: 78.5 µg/m³, 1.5× usual Muzaffarnagar, 8 April: 73.2 µg/m³, 1.4× usual Muzaffarnagar, 9 April: no reading Bāghpat Bāghpat, 20 March: no reading Bāghpat, 21 March: 65.0 µg/m³, 1.2× usual Bāghpat, 22 March: 86.8 µg/m³, 1.6× usual Bāghpat, 23 March: 119.0 µg/m³, 2.2× usual Bāghpat, 24 March: no reading Bāghpat, 25 March: no reading Bāghpat, 26 March: 130.0 µg/m³, 2.4× usual Bāghpat, 27 March: 121.0 µg/m³, 2.3× usual Bāghpat, 28 March: no reading Bāghpat, 29 March: no reading Bāghpat, 30 March: 44.8 µg/m³, 0.8× usual Bāghpat, 31 March: 58.6 µg/m³, 1.1× usual Bāghpat, 1 April: 67.7 µg/m³, 1.3× usual Bāghpat, 2 April: 82.0 µg/m³, 1.5× usual Bāghpat, 3 April: 89.8 µg/m³, 1.7× usual Bāghpat, 4 April: 78.9 µg/m³, 1.5× usual Bāghpat, 5 April: 58.9 µg/m³, 1.1× usual Bāghpat, 6 April: 77.1 µg/m³, 1.4× usual Bāghpat, 7 April: 97.3 µg/m³, 1.8× usual Bāghpat, 8 April: 98.0 µg/m³, 1.8× usual Bāghpat, 9 April: no reading Mohali Mohali, 20 March: 29.6 µg/m³, 1.1× usual Mohali, 21 March: 30.0 µg/m³, 1.1× usual Mohali, 22 March: 38.0 µg/m³, 1.4× usual Mohali, 23 March: 58.2 µg/m³, 2.1× usual Mohali, 24 March: 62.3 µg/m³, 2.3× usual Mohali, 25 March: no reading Mohali, 26 March: no reading Mohali, 27 March: 43.6 µg/m³, 1.6× usual Mohali, 28 March: 37.7 µg/m³, 1.4× usual Mohali, 29 March: 24.5 µg/m³, 0.9× usual Mohali, 30 March: 33.6 µg/m³, 1.2× usual Mohali, 31 March: 29.3 µg/m³, 1.1× usual Mohali, 1 April: 39.9 µg/m³, 1.5× usual Mohali, 2 April: 49.0 µg/m³, 1.8× usual Mohali, 3 April: 38.6 µg/m³, 1.4× usual Mohali, 4 April: 44.6 µg/m³, 1.6× usual Mohali, 5 April: no reading Mohali, 6 April: no reading Mohali, 7 April: 62.2 µg/m³, 2.3× usual Mohali, 8 April: 68.1 µg/m³, 2.5× usual Mohali, 9 April: no reading Ghāziābād Ghāziābād, 20 March: 98.2 µg/m³, 1.6× usual Ghāziābād, 21 March: 54.7 µg/m³, 0.9× usual Ghāziābād, 22 March: 84.0 µg/m³, 1.4× usual Ghāziābād, 23 March: 106.0 µg/m³, 1.7× usual Ghāziābād, 24 March: 126.0 µg/m³, 2.0× usual Ghāziābād, 25 March: 158.0 µg/m³, 2.5× usual Ghāziābād, 26 March: 116.0 µg/m³, 1.9× usual Ghāziābād, 27 March: 117.0 µg/m³, 1.9× usual Ghāziābād, 28 March: 66.6 µg/m³, 1.1× usual Ghāziābād, 29 March: 32.2 µg/m³, 0.5× usual Ghāziābād, 30 March: 31.6 µg/m³, 0.5× usual Ghāziābād, 31 March: 39.6 µg/m³, 0.6× usual Ghāziābād, 1 April: 51.9 µg/m³, 0.8× usual Ghāziābād, 2 April: 160.0 µg/m³, 2.6× usual Ghāziābād, 3 April: no reading Ghāziābād, 4 April: 136.0 µg/m³, 2.2× usual Ghāziābād, 5 April: 81.9 µg/m³, 1.3× usual Ghāziābād, 6 April: 98.8 µg/m³, 1.6× usual Ghāziābād, 7 April: 128.0 µg/m³, 2.1× usual Ghāziābād, 8 April: no reading Ghāziābād, 9 April: no reading Rourkela Rourkela, 20 March: 58.5 µg/m³, 1.1× usual Rourkela, 21 March: 48.3 µg/m³, 0.9× usual Rourkela, 22 March: 21.5 µg/m³, 0.4× usual Rourkela, 23 March: 26.4 µg/m³, 0.5× usual Rourkela, 24 March: 56.0 µg/m³, 1.1× usual Rourkela, 25 March: 165.0 µg/m³, 3.2× usual Rourkela, 26 March: 103.4 µg/m³, 2.0× usual Rourkela, 27 March: 82.3 µg/m³, 1.6× usual Rourkela, 28 March: 185.0 µg/m³, 3.6× usual Rourkela, 29 March: 116.2 µg/m³, 2.3× usual Rourkela, 30 March: 48.7 µg/m³, 1.0× usual Rourkela, 31 March: 68.5 µg/m³, 1.3× usual Rourkela, 1 April: 113.3 µg/m³, 2.2× usual Rourkela, 2 April: 100.4 µg/m³, 2.0× usual Rourkela, 3 April: 86.2 µg/m³, 1.7× usual Rourkela, 4 April: 85.1 µg/m³, 1.7× usual Rourkela, 5 April: 103.1 µg/m³, 2.0× usual Rourkela, 6 April: 12.7 µg/m³, 0.2× usual Rourkela, 7 April: 76.1 µg/m³, 1.5× usual Rourkela, 8 April: 54.7 µg/m³, 1.1× usual Rourkela, 9 April: no reading Samāstipur Samāstipur, 20 March: no reading Samāstipur, 21 March: no reading Samāstipur, 22 March: no reading Samāstipur, 23 March: no reading Samāstipur, 24 March: no reading Samāstipur, 25 March: 114.0 µg/m³, 2.9× usual Samāstipur, 26 March: 77.8 µg/m³, 2.0× usual Samāstipur, 27 March: 82.7 µg/m³, 2.1× usual Samāstipur, 28 March: 58.7 µg/m³, 1.5× usual Samāstipur, 29 March: 27.3 µg/m³, 0.7× usual Samāstipur, 30 March: 31.1 µg/m³, 0.8× usual Samāstipur, 31 March: 46.4 µg/m³, 1.2× usual Samāstipur, 1 April: 37.2 µg/m³, 1.0× usual Samāstipur, 2 April: 39.9 µg/m³, 1.0× usual Samāstipur, 3 April: 37.0 µg/m³, 1.0× usual Samāstipur, 4 April: 39.1 µg/m³, 1.0× usual Samāstipur, 5 April: 37.4 µg/m³, 1.0× usual Samāstipur, 6 April: 40.7 µg/m³, 1.0× usual Samāstipur, 7 April: no reading Samāstipur, 8 April: 30.5 µg/m³, 0.8× usual Samāstipur, 9 April: no reading Rānīganj Rānīganj, 20 March: 55.7 µg/m³, 1.5× usual Rānīganj, 21 March: 51.1 µg/m³, 1.4× usual Rānīganj, 22 March: 17.7 µg/m³, 0.5× usual Rānīganj, 23 March: 45.1 µg/m³, 1.2× usual Rānīganj, 24 March: 75.0 µg/m³, 2.1× usual Rānīganj, 25 March: 92.9 µg/m³, 2.6× usual Rānīganj, 26 March: 95.7 µg/m³, 2.6× usual Rānīganj, 27 March: 78.2 µg/m³, 2.2× usual Rānīganj, 28 March: 71.1 µg/m³, 2.0× usual Rānīganj, 29 March: 65.6 µg/m³, 1.8× usual Rānīganj, 30 March: 64.0 µg/m³, 1.8× usual Rānīganj, 31 March: 52.3 µg/m³, 1.4× usual Rānīganj, 1 April: 43.2 µg/m³, 1.2× usual Rānīganj, 2 April: 43.6 µg/m³, 1.2× usual Rānīganj, 3 April: 61.3 µg/m³, 1.7× usual Rānīganj, 4 April: 56.4 µg/m³, 1.6× usual Rānīganj, 5 April: 57.4 µg/m³, 1.6× usual Rānīganj, 6 April: 47.9 µg/m³, 1.3× usual Rānīganj, 7 April: 27.4 µg/m³, 0.8× usual Rānīganj, 8 April: 21.1 µg/m³, 0.6× usual Rānīganj, 9 April: no reading Shrīrāmpur Shrīrāmpur, 20 March: 28.1 µg/m³, 0.8× usual Shrīrāmpur, 21 March: 33.8 µg/m³, 1.0× usual Shrīrāmpur, 22 March: 24.8 µg/m³, 0.7× usual Shrīrāmpur, 23 March: 42.4 µg/m³, 1.3× usual Shrīrāmpur, 24 March: 61.1 µg/m³, 1.8× usual Shrīrāmpur, 25 March: 87.5 µg/m³, 2.6× usual Shrīrāmpur, 26 March: 44.4 µg/m³, 1.3× usual Shrīrāmpur, 27 March: 45.6 µg/m³, 1.4× usual Shrīrāmpur, 28 March: 56.5 µg/m³, 1.7× usual Shrīrāmpur, 29 March: 58.8 µg/m³, 1.8× usual Shrīrāmpur, 30 March: 52.6 µg/m³, 1.6× usual Shrīrāmpur, 31 March: 43.9 µg/m³, 1.3× usual Shrīrāmpur, 1 April: 37.2 µg/m³, 1.1× usual Shrīrāmpur, 2 April: 26.8 µg/m³, 0.8× usual Shrīrāmpur, 3 April: 35.5 µg/m³, 1.1× usual Shrīrāmpur, 4 April: 49.8 µg/m³, 1.5× usual Shrīrāmpur, 5 April: 48.4 µg/m³, 1.5× usual Shrīrāmpur, 6 April: 29.1 µg/m³, 0.9× usual Shrīrāmpur, 7 April: 15.4 µg/m³, 0.5× usual Shrīrāmpur, 8 April: 15.8 µg/m³, 0.5× usual Shrīrāmpur, 9 April: no reading Dehradun Dehradun, 20 March: 18.6 µg/m³, 0.6× usual Dehradun, 21 March: 20.5 µg/m³, 0.6× usual Dehradun, 22 March: 23.8 µg/m³, 0.7× usual Dehradun, 23 March: 40.5 µg/m³, 1.2× usual Dehradun, 24 March: 54.2 µg/m³, 1.6× usual Dehradun, 25 March: 68.0 µg/m³, 2.0× usual Dehradun, 26 March: 62.4 µg/m³, 1.9× usual Dehradun, 27 March: 42.2 µg/m³, 1.3× usual Dehradun, 28 March: 38.5 µg/m³, 1.2× usual Dehradun, 29 March: 32.6 µg/m³, 1.0× usual Dehradun, 30 March: 30.4 µg/m³, 0.9× usual Dehradun, 31 March: 29.1 µg/m³, 0.9× usual Dehradun, 1 April: 30.8 µg/m³, 0.9× usual Dehradun, 2 April: 35.2 µg/m³, 1.1× usual Dehradun, 3 April: 35.0 µg/m³, 1.1× usual Dehradun, 4 April: 30.2 µg/m³, 0.9× usual Dehradun, 5 April: 30.9 µg/m³, 0.9× usual Dehradun, 6 April: 47.9 µg/m³, 1.4× usual Dehradun, 7 April: 51.6 µg/m³, 1.6× usual Dehradun, 8 April: 59.2 µg/m³, 1.8× usual Dehradun, 9 April: no reading Patiāla Patiāla, 20 March: 36.0 µg/m³, 1.2× usual Patiāla, 21 March: 33.7 µg/m³, 1.1× usual Patiāla, 22 March: 42.5 µg/m³, 1.4× usual Patiāla, 23 March: 57.6 µg/m³, 1.9× usual Patiāla, 24 March: 56.5 µg/m³, 1.9× usual Patiāla, 25 March: 67.4 µg/m³, 2.3× usual Patiāla, 26 March: no reading Patiāla, 27 March: 68.9 µg/m³, 2.3× usual Patiāla, 28 March: 54.8 µg/m³, 1.8× usual Patiāla, 29 March: 28.6 µg/m³, 1.0× usual Patiāla, 30 March: 25.8 µg/m³, 0.9× usual Patiāla, 31 March: 40.6 µg/m³, 1.4× usual Patiāla, 1 April: 55.7 µg/m³, 1.9× usual Patiāla, 2 April: 64.4 µg/m³, 2.2× usual Patiāla, 3 April: 49.6 µg/m³, 1.7× usual Patiāla, 4 April: 41.0 µg/m³, 1.4× usual Patiāla, 5 April: 31.7 µg/m³, 1.1× usual Patiāla, 6 April: 42.2 µg/m³, 1.4× usual Patiāla, 7 April: 58.1 µg/m³, 1.9× usual Patiāla, 8 April: 61.6 µg/m³, 2.1× usual Patiāla, 9 April: no reading Sawai Madhopur Sawai Madhopur, 20 March: 42.9 µg/m³, 1.6× usual Sawai Madhopur, 21 March: 50.9 µg/m³, 1.9× usual Sawai Madhopur, 22 March: 38.1 µg/m³, 1.4× usual Sawai Madhopur, 23 March: 39.6 µg/m³, 1.5× usual Sawai Madhopur, 24 March: 49.3 µg/m³, 1.9× usual Sawai Madhopur, 25 March: 54.0 µg/m³, 2.0× usual Sawai Madhopur, 26 March: 57.4 µg/m³, 2.2× usual Sawai Madhopur, 27 March: 51.2 µg/m³, 1.9× usual Sawai Madhopur, 28 March: 35.4 µg/m³, 1.3× usual Sawai Madhopur, 29 March: 36.4 µg/m³, 1.4× usual Sawai Madhopur, 30 March: 47.2 µg/m³, 1.8× usual Sawai Madhopur, 31 March: 50.7 µg/m³, 1.9× usual Sawai Madhopur, 1 April: 44.2 µg/m³, 1.7× usual Sawai Madhopur, 2 April: 44.9 µg/m³, 1.7× usual Sawai Madhopur, 3 April: 54.3 µg/m³, 2.1× usual Sawai Madhopur, 4 April: 63.7 µg/m³, 2.4× usual Sawai Madhopur, 5 April: 65.9 µg/m³, 2.5× usual Sawai Madhopur, 6 April: 66.2 µg/m³, 2.5× usual Sawai Madhopur, 7 April: 64.4 µg/m³, 2.4× usual Sawai Madhopur, 8 April: 63.7 µg/m³, 2.4× usual Sawai Madhopur, 9 April: no reading Jhānsi Jhānsi, 20 March: 30.3 µg/m³, 1.7× usual Jhānsi, 21 March: 33.7 µg/m³, 1.9× usual Jhānsi, 22 March: 29.1 µg/m³, 1.6× usual Jhānsi, 23 March: 21.2 µg/m³, 1.2× usual Jhānsi, 24 March: 31.7 µg/m³, 1.8× usual Jhānsi, 25 March: 46.9 µg/m³, 2.6× usual Jhānsi, 26 March: 45.3 µg/m³, 2.5× usual Jhānsi, 27 March: 52.2 µg/m³, 2.9× usual Jhānsi, 28 March: 36.0 µg/m³, 2.0× usual Jhānsi, 29 March: 34.8 µg/m³, 1.9× usual Jhānsi, 30 March: 34.6 µg/m³, 1.9× usual Jhānsi, 31 March: 41.9 µg/m³, 2.3× usual Jhānsi, 1 April: 38.3 µg/m³, 2.1× usual Jhānsi, 2 April: 44.2 µg/m³, 2.5× usual Jhānsi, 3 April: 51.7 µg/m³, 2.9× usual Jhānsi, 4 April: 68.0 µg/m³, 3.8× usual Jhānsi, 5 April: 92.8 µg/m³, 5.2× usual Jhānsi, 6 April: 99.3 µg/m³, 5.5× usual Jhānsi, 7 April: 74.2 µg/m³, 4.1× usual Jhānsi, 8 April: 48.5 µg/m³, 2.7× usual Jhānsi, 9 April: no reading Mothīhāri Mothīhāri, 20 March: 62.8 µg/m³, 1.4× usual Mothīhāri, 21 March: 38.8 µg/m³, 0.9× usual Mothīhāri, 22 March: 37.9 µg/m³, 0.9× usual Mothīhāri, 23 March: 26.5 µg/m³, 0.6× usual Mothīhāri, 24 March: 61.9 µg/m³, 1.4× usual Mothīhāri, 25 March: 82.2 µg/m³, 1.9× usual Mothīhāri, 26 March: 118.0 µg/m³, 2.7× usual Mothīhāri, 27 March: 89.4 µg/m³, 2.0× usual Mothīhāri, 28 March: 28.9 µg/m³, 0.7× usual Mothīhāri, 29 March: 17.0 µg/m³, 0.4× usual Mothīhāri, 30 March: no reading Mothīhāri, 31 March: no reading Mothīhāri, 1 April: no reading Mothīhāri, 2 April: 27.9 µg/m³, 0.6× usual Mothīhāri, 3 April: 16.7 µg/m³, 0.4× usual Mothīhāri, 4 April: 22.1 µg/m³, 0.5× usual Mothīhāri, 5 April: 22.9 µg/m³, 0.5× usual Mothīhāri, 6 April: 28.0 µg/m³, 0.6× usual Mothīhāri, 7 April: 21.5 µg/m³, 0.5× usual Mothīhāri, 8 April: no reading Mothīhāri, 9 April: no reading Āsansol Āsansol, 20 March: 62.4 µg/m³, 1.3× usual Āsansol, 21 March: 49.2 µg/m³, 1.0× usual Āsansol, 22 March: 25.5 µg/m³, 0.5× usual Āsansol, 23 March: 44.3 µg/m³, 0.9× usual Āsansol, 24 March: 67.3 µg/m³, 1.4× usual Āsansol, 25 March: 89.7 µg/m³, 1.9× usual Āsansol, 26 March: 95.4 µg/m³, 2.0× usual Āsansol, 27 March: 78.8 µg/m³, 1.7× usual Āsansol, 28 March: 85.1 µg/m³, 1.8× usual Āsansol, 29 March: 67.1 µg/m³, 1.4× usual Āsansol, 30 March: 77.3 µg/m³, 1.6× usual Āsansol, 31 March: 85.8 µg/m³, 1.8× usual Āsansol, 1 April: 59.6 µg/m³, 1.3× usual Āsansol, 2 April: 51.7 µg/m³, 1.1× usual Āsansol, 3 April: 76.2 µg/m³, 1.6× usual Āsansol, 4 April: 62.1 µg/m³, 1.3× usual Āsansol, 5 April: 69.5 µg/m³, 1.5× usual Āsansol, 6 April: 68.5 µg/m³, 1.5× usual Āsansol, 7 April: 33.4 µg/m³, 0.7× usual Āsansol, 8 April: 17.6 µg/m³, 0.4× usual Āsansol, 9 April: no reading Bettiah Bettiah, 20 March: 44.8 µg/m³, 1.8× usual Bettiah, 21 March: 31.9 µg/m³, 1.3× usual Bettiah, 22 March: 28.4 µg/m³, 1.1× usual Bettiah, 23 March: no reading Bettiah, 24 March: no reading Bettiah, 25 March: 53.7 µg/m³, 2.1× usual Bettiah, 26 March: 72.1 µg/m³, 2.9× usual Bettiah, 27 March: 67.8 µg/m³, 2.7× usual Bettiah, 28 March: 47.9 µg/m³, 1.9× usual Bettiah, 29 March: 26.9 µg/m³, 1.1× usual Bettiah, 30 March: 46.6 µg/m³, 1.8× usual Bettiah, 31 March: no reading Bettiah, 1 April: 48.8 µg/m³, 1.9× usual Bettiah, 2 April: 35.3 µg/m³, 1.4× usual Bettiah, 3 April: 43.0 µg/m³, 1.7× usual Bettiah, 4 April: 33.3 µg/m³, 1.3× usual Bettiah, 5 April: 36.8 µg/m³, 1.5× usual Bettiah, 6 April: 58.0 µg/m³, 2.3× usual Bettiah, 7 April: no reading Bettiah, 8 April: 31.8 µg/m³, 1.3× usual Bettiah, 9 April: no reading Nagaon Nagaon, 20 March: 57.1 µg/m³, 2.0× usual Nagaon, 21 March: 60.0 µg/m³, 2.1× usual Nagaon, 22 March: 65.4 µg/m³, 2.2× usual Nagaon, 23 March: 46.1 µg/m³, 1.6× usual Nagaon, 24 March: 38.5 µg/m³, 1.3× usual Nagaon, 25 March: 46.3 µg/m³, 1.6× usual Nagaon, 26 March: 66.1 µg/m³, 2.3× usual Nagaon, 27 March: 86.9 µg/m³, 3.0× usual Nagaon, 28 March: 83.0 µg/m³, 2.8× usual Nagaon, 29 March: 60.9 µg/m³, 2.1× usual Nagaon, 30 March: 55.2 µg/m³, 1.9× usual Nagaon, 31 March: 53.5 µg/m³, 1.8× usual Nagaon, 1 April: 63.9 µg/m³, 2.2× usual Nagaon, 2 April: 56.5 µg/m³, 1.9× usual Nagaon, 3 April: 57.0 µg/m³, 2.0× usual Nagaon, 4 April: no reading Nagaon, 5 April: 61.9 µg/m³, 2.1× usual Nagaon, 6 April: no reading Nagaon, 7 April: no reading Nagaon, 8 April: no reading Nagaon, 9 April: no reading Rairangpur Rairangpur, 20 March: no reading Rairangpur, 21 March: 38.3 µg/m³, 1.6× usual Rairangpur, 22 March: 19.9 µg/m³, 0.8× usual Rairangpur, 23 March: 27.1 µg/m³, 1.1× usual Rairangpur, 24 March: 39.4 µg/m³, 1.7× usual Rairangpur, 25 March: 48.2 µg/m³, 2.0× usual Rairangpur, 26 March: 60.1 µg/m³, 2.5× usual Rairangpur, 27 March: 58.0 µg/m³, 2.4× usual Rairangpur, 28 March: no reading Rairangpur, 29 March: no reading Rairangpur, 30 March: 86.3 µg/m³, 3.6× usual Rairangpur, 31 March: 68.7 µg/m³, 2.9× usual Rairangpur, 1 April: 57.7 µg/m³, 2.4× usual Rairangpur, 2 April: 50.9 µg/m³, 2.1× usual Rairangpur, 3 April: 54.3 µg/m³, 2.3× usual Rairangpur, 4 April: 60.6 µg/m³, 2.5× usual Rairangpur, 5 April: 63.9 µg/m³, 2.7× usual Rairangpur, 6 April: no reading Rairangpur, 7 April: 49.6 µg/m³, 2.1× usual Rairangpur, 8 April: 23.5 µg/m³, 1.0× usual Rairangpur, 9 April: no reading Hājīpur Hājīpur, 20 March: 103.0 µg/m³, 1.2× usual Hājīpur, 21 March: 78.0 µg/m³, 0.9× usual Hājīpur, 22 March: 68.9 µg/m³, 0.8× usual Hājīpur, 23 March: 70.0 µg/m³, 0.8× usual Hājīpur, 24 March: 109.0 µg/m³, 1.3× usual Hājīpur, 25 March: 122.0 µg/m³, 1.5× usual Hājīpur, 26 March: 149.0 µg/m³, 1.8× usual Hājīpur, 27 March: 169.0 µg/m³, 2.0× usual Hājīpur, 28 March: 92.5 µg/m³, 1.1× usual Hājīpur, 29 March: 92.7 µg/m³, 1.1× usual Hājīpur, 30 March: 69.8 µg/m³, 0.8× usual Hājīpur, 31 March: 95.3 µg/m³, 1.2× usual Hājīpur, 1 April: 89.2 µg/m³, 1.1× usual Hājīpur, 2 April: 85.4 µg/m³, 1.0× usual Hājīpur, 3 April: 85.8 µg/m³, 1.0× usual Hājīpur, 4 April: 102.0 µg/m³, 1.2× usual Hājīpur, 5 April: 108.0 µg/m³, 1.3× usual Hājīpur, 6 April: 96.5 µg/m³, 1.2× usual Hājīpur, 7 April: 72.9 µg/m³, 0.9× usual Hājīpur, 8 April: 39.4 µg/m³, 0.5× usual Hājīpur, 9 April: no reading Sasarām Sasarām, 20 March: 61.0 µg/m³, 1.2× usual Sasarām, 21 March: 38.8 µg/m³, 0.8× usual Sasarām, 22 March: 50.1 µg/m³, 1.0× usual Sasarām, 23 March: 89.4 µg/m³, 1.8× usual Sasarām, 24 March: 75.8 µg/m³, 1.5× usual Sasarām, 25 March: 74.1 µg/m³, 1.5× usual Sasarām, 26 March: 84.5 µg/m³, 1.7× usual Sasarām, 27 March: 104.0 µg/m³, 2.1× usual Sasarām, 28 March: 83.9 µg/m³, 1.7× usual Sasarām, 29 March: 94.8 µg/m³, 1.9× usual Sasarām, 30 March: 69.7 µg/m³, 1.4× usual Sasarām, 31 March: 78.8 µg/m³, 1.6× usual Sasarām, 1 April: 84.1 µg/m³, 1.7× usual Sasarām, 2 April: 101.0 µg/m³, 2.1× usual Sasarām, 3 April: 94.3 µg/m³, 1.9× usual Sasarām, 4 April: 81.4 µg/m³, 1.7× usual Sasarām, 5 April: 84.4 µg/m³, 1.7× usual Sasarām, 6 April: 88.2 µg/m³, 1.8× usual Sasarām, 7 April: 99.0 µg/m³, 2.0× usual Sasarām, 8 April: 78.5 µg/m³, 1.6× usual Sasarām, 9 April: no reading Durgapur Durgapur, 20 March: 40.3 µg/m³, 1.0× usual Durgapur, 21 March: 35.9 µg/m³, 0.9× usual Durgapur, 22 March: 20.6 µg/m³, 0.5× usual Durgapur, 23 March: 36.5 µg/m³, 0.9× usual Durgapur, 24 March: 57.1 µg/m³, 1.4× usual Durgapur, 25 March: 64.0 µg/m³, 1.6× usual Durgapur, 26 March: 61.8 µg/m³, 1.5× usual Durgapur, 27 March: 87.1 µg/m³, 2.2× usual Durgapur, 28 March: 68.8 µg/m³, 1.7× usual Durgapur, 29 March: 65.4 µg/m³, 1.6× usual Durgapur, 30 March: 64.6 µg/m³, 1.6× usual Durgapur, 31 March: 36.9 µg/m³, 0.9× usual Durgapur, 1 April: 32.9 µg/m³, 0.8× usual Durgapur, 2 April: 34.9 µg/m³, 0.9× usual Durgapur, 3 April: 45.6 µg/m³, 1.1× usual Durgapur, 4 April: 54.2 µg/m³, 1.4× usual Durgapur, 5 April: 49.1 µg/m³, 1.2× usual Durgapur, 6 April: 41.7 µg/m³, 1.0× usual Durgapur, 7 April: 29.5 µg/m³, 0.7× usual Durgapur, 8 April: 20.1 µg/m³, 0.5× usual Durgapur, 9 April: no reading Munger Munger, 20 March: no reading Munger, 21 March: no reading Munger, 22 March: 32.3 µg/m³, 1.0× usual Munger, 23 March: 39.0 µg/m³, 1.2× usual Munger, 24 March: 43.4 µg/m³, 1.4× usual Munger, 25 March: 54.1 µg/m³, 1.7× usual Munger, 26 March: 57.0 µg/m³, 1.8× usual Munger, 27 March: 65.1 µg/m³, 2.0× usual Munger, 28 March: 66.8 µg/m³, 2.1× usual Munger, 29 March: 52.8 µg/m³, 1.7× usual Munger, 30 March: 45.4 µg/m³, 1.4× usual Munger, 31 March: 52.5 µg/m³, 1.6× usual Munger, 1 April: 41.0 µg/m³, 1.3× usual Munger, 2 April: 31.4 µg/m³, 1.0× usual Munger, 3 April: 48.5 µg/m³, 1.5× usual Munger, 4 April: 47.9 µg/m³, 1.5× usual Munger, 5 April: 56.5 µg/m³, 1.8× usual Munger, 6 April: 61.9 µg/m³, 1.9× usual Munger, 7 April: 53.9 µg/m³, 1.7× usual Munger, 8 April: no reading Munger, 9 April: no reading Naharlagun Naharlagun, 20 March: no reading Naharlagun, 21 March: 48.8 µg/m³, 1.9× usual Naharlagun, 22 March: no reading Naharlagun, 23 March: no reading Naharlagun, 24 March: no reading Naharlagun, 25 March: no reading Naharlagun, 26 March: 47.9 µg/m³, 1.8× usual Naharlagun, 27 March: 57.7 µg/m³, 2.2× usual Naharlagun, 28 March: 60.6 µg/m³, 2.3× usual Naharlagun, 29 March: 48.9 µg/m³, 1.9× usual Naharlagun, 30 March: no reading Naharlagun, 31 March: 52.1 µg/m³, 2.0× usual Naharlagun, 1 April: no reading Naharlagun, 2 April: 53.9 µg/m³, 2.1× usual Naharlagun, 3 April: 55.3 µg/m³, 2.1× usual Naharlagun, 4 April: 52.7 µg/m³, 2.0× usual Naharlagun, 5 April: 59.7 µg/m³, 2.3× usual Naharlagun, 6 April: no reading Naharlagun, 7 April: no reading Naharlagun, 8 April: no reading Naharlagun, 9 April: no reading Katihar Katihar, 20 March: no reading Katihar, 21 March: no reading Katihar, 22 March: no reading Katihar, 23 March: 16.4 µg/m³, 0.7× usual Katihar, 24 March: 35.3 µg/m³, 1.5× usual Katihar, 25 March: 41.7 µg/m³, 1.7× usual Katihar, 26 March: 46.8 µg/m³, 1.9× usual Katihar, 27 March: 50.0 µg/m³, 2.1× usual Katihar, 28 March: 46.7 µg/m³, 1.9× usual Katihar, 29 March: 37.4 µg/m³, 1.6× usual Katihar, 30 March: 39.0 µg/m³, 1.6× usual Katihar, 31 March: 50.3 µg/m³, 2.1× usual Katihar, 1 April: no reading Katihar, 2 April: no reading Katihar, 3 April: no reading Katihar, 4 April: 35.7 µg/m³, 1.5× usual Katihar, 5 April: 42.7 µg/m³, 1.8× usual Katihar, 6 April: no reading Katihar, 7 April: no reading Katihar, 8 April: no reading Katihar, 9 April: no reading Purnia Purnia, 20 March: 64.0 µg/m³, 1.4× usual Purnia, 21 March: 54.3 µg/m³, 1.2× usual Purnia, 22 March: 51.7 µg/m³, 1.2× usual Purnia, 23 March: no reading Purnia, 24 March: 60.3 µg/m³, 1.4× usual Purnia, 25 March: 86.5 µg/m³, 1.9× usual Purnia, 26 March: 90.3 µg/m³, 2.0× usual Purnia, 27 March: no reading Purnia, 28 March: 107.0 µg/m³, 2.4× usual Purnia, 29 March: 60.6 µg/m³, 1.4× usual Purnia, 30 March: 59.8 µg/m³, 1.3× usual Purnia, 31 March: 87.5 µg/m³, 2.0× usual Purnia, 1 April: 79.0 µg/m³, 1.8× usual Purnia, 2 April: 80.9 µg/m³, 1.8× usual Purnia, 3 April: 73.3 µg/m³, 1.7× usual Purnia, 4 April: 58.4 µg/m³, 1.3× usual Purnia, 5 April: 80.3 µg/m³, 1.8× usual Purnia, 6 April: 77.3 µg/m³, 1.7× usual Purnia, 7 April: no reading Purnia, 8 April: no reading Purnia, 9 April: no reading Dera Colliery Towns… Dera Colliery Township, 20 March: no reading Dera Colliery Township, 21 March: no reading Dera Colliery Township, 22 March: no reading Dera Colliery Township, 23 March: no reading Dera Colliery Township, 24 March: no reading Dera Colliery Township, 25 March: no reading Dera Colliery Township, 26 March: no reading Dera Colliery Township, 27 March: no reading Dera Colliery Township, 28 March: no reading Dera Colliery Township, 29 March: 82.4 µg/m³, 2.2× usual Dera Colliery Township, 30 March: 40.2 µg/m³, 1.1× usual Dera Colliery Township, 31 March: 47.3 µg/m³, 1.3× usual Dera Colliery Township, 1 April: 46.5 µg/m³, 1.3× usual Dera Colliery Township, 2 April: 41.8 µg/m³, 1.1× usual Dera Colliery Township, 3 April: 51.7 µg/m³, 1.4× usual Dera Colliery Township, 4 April: 65.5 µg/m³, 1.8× usual Dera Colliery Township, 5 April: 84.4 µg/m³, 2.3× usual Dera Colliery Township, 6 April: 60.7 µg/m³, 1.6× usual Dera Colliery Township, 7 April: 34.2 µg/m³, 0.9× usual Dera Colliery Township, 8 April: 20.5 µg/m³, 0.6× usual Dera Colliery Township, 9 April: no reading Keonjhargarh Keonjhargarh, 20 March: 69.1 µg/m³, 1.8× usual Keonjhargarh, 21 March: 36.7 µg/m³, 1.0× usual Keonjhargarh, 22 March: 17.1 µg/m³, 0.5× usual Keonjhargarh, 23 March: 29.6 µg/m³, 0.8× usual Keonjhargarh, 24 March: 37.0 µg/m³, 1.0× usual Keonjhargarh, 25 March: 52.6 µg/m³, 1.4× usual Keonjhargarh, 26 March: 52.0 µg/m³, 1.4× usual Keonjhargarh, 27 March: 60.6 µg/m³, 1.6× usual Keonjhargarh, 28 March: 54.2 µg/m³, 1.4× usual Keonjhargarh, 29 March: 77.6 µg/m³, 2.1× usual Keonjhargarh, 30 March: 73.8 µg/m³, 2.0× usual Keonjhargarh, 31 March: 37.2 µg/m³, 1.0× usual Keonjhargarh, 1 April: no reading Keonjhargarh, 2 April: no reading Keonjhargarh, 3 April: no reading Keonjhargarh, 4 April: 9.5 µg/m³, 0.3× usual Keonjhargarh, 5 April: 47.4 µg/m³, 1.3× usual Keonjhargarh, 6 April: 46.1 µg/m³, 1.2× usual Keonjhargarh, 7 April: 35.5 µg/m³, 0.9× usual Keonjhargarh, 8 April: 28.5 µg/m³, 0.8× usual Keonjhargarh, 9 April: no reading Baripāda Baripāda, 20 March: 36.8 µg/m³, 1.0× usual Baripāda, 21 March: 39.5 µg/m³, 1.1× usual Baripāda, 22 March: 12.4 µg/m³, 0.3× usual Baripāda, 23 March: 19.7 µg/m³, 0.5× usual Baripāda, 24 March: 25.1 µg/m³, 0.7× usual Baripāda, 25 March: 35.4 µg/m³, 1.0× usual Baripāda, 26 March: 45.1 µg/m³, 1.2× usual Baripāda, 27 March: 43.3 µg/m³, 1.2× usual Baripāda, 28 March: 43.9 µg/m³, 1.2× usual Baripāda, 29 March: 64.1 µg/m³, 1.8× usual Baripāda, 30 March: 80.4 µg/m³, 2.2× usual Baripāda, 31 March: 52.8 µg/m³, 1.4× usual Baripāda, 1 April: 51.4 µg/m³, 1.4× usual Baripāda, 2 April: no reading Baripāda, 3 April: 40.8 µg/m³, 1.1× usual Baripāda, 4 April: 46.6 µg/m³, 1.3× usual Baripāda, 5 April: 56.4 µg/m³, 1.5× usual Baripāda, 6 April: 45.5 µg/m³, 1.2× usual Baripāda, 7 April: 17.2 µg/m³, 0.5× usual Baripāda, 8 April: 8.4 µg/m³, 0.2× usual Baripāda, 9 April: no reading Jabalpur Jabalpur, 20 March: 21.6 µg/m³, 0.8× usual Jabalpur, 21 March: 25.0 µg/m³, 0.9× usual Jabalpur, 22 March: 23.2 µg/m³, 0.8× usual Jabalpur, 23 March: 21.4 µg/m³, 0.8× usual Jabalpur, 24 March: 23.1 µg/m³, 0.8× usual Jabalpur, 25 March: 25.4 µg/m³, 0.9× usual Jabalpur, 26 March: 31.7 µg/m³, 1.1× usual Jabalpur, 27 March: 40.4 µg/m³, 1.4× usual Jabalpur, 28 March: 40.5 µg/m³, 1.4× usual Jabalpur, 29 March: 30.5 µg/m³, 1.1× usual Jabalpur, 30 March: 36.4 µg/m³, 1.3× usual Jabalpur, 31 March: 41.8 µg/m³, 1.5× usual Jabalpur, 1 April: 68.7 µg/m³, 2.5× usual Jabalpur, 2 April: 57.5 µg/m³, 2.1× usual Jabalpur, 3 April: 43.7 µg/m³, 1.6× usual Jabalpur, 4 April: 33.9 µg/m³, 1.2× usual Jabalpur, 5 April: 38.8 µg/m³, 1.4× usual Jabalpur, 6 April: 33.9 µg/m³, 1.2× usual Jabalpur, 7 April: 40.0 µg/m³, 1.4× usual Jabalpur, 8 April: 41.3 µg/m³, 1.5× usual Jabalpur, 9 April: no reading Maihar Maihar, 20 March: 14.9 µg/m³, 1.1× usual Maihar, 21 March: 14.1 µg/m³, 1.0× usual Maihar, 22 March: 11.0 µg/m³, 0.8× usual Maihar, 23 March: 15.0 µg/m³, 1.1× usual Maihar, 24 March: 14.5 µg/m³, 1.1× usual Maihar, 25 March: 15.8 µg/m³, 1.1× usual Maihar, 26 March: 13.5 µg/m³, 1.0× usual Maihar, 27 March: 3.9 µg/m³, 0.3× usual Maihar, 28 March: 16.9 µg/m³, 1.2× usual Maihar, 29 March: 11.2 µg/m³, 0.8× usual Maihar, 30 March: 13.8 µg/m³, 1.0× usual Maihar, 31 March: 11.3 µg/m³, 0.8× usual Maihar, 1 April: 11.4 µg/m³, 0.8× usual Maihar, 2 April: 55.1 µg/m³, 4.0× usual Maihar, 3 April: 16.6 µg/m³, 1.2× usual Maihar, 4 April: 15.4 µg/m³, 1.1× usual Maihar, 5 April: 23.3 µg/m³, 1.7× usual Maihar, 6 April: 18.6 µg/m³, 1.3× usual Maihar, 7 April: 21.3 µg/m³, 1.5× usual Maihar, 8 April: 27.0 µg/m³, 2.0× usual Maihar, 9 April: no reading Bihār Sharīf Bihār Sharīf, 20 March: no reading Bihār Sharīf, 21 March: no reading Bihār Sharīf, 22 March: no reading Bihār Sharīf, 23 March: no reading Bihār Sharīf, 24 March: 43.0 µg/m³, 1.5× usual Bihār Sharīf, 25 March: 43.5 µg/m³, 1.5× usual Bihār Sharīf, 26 March: no reading Bihār Sharīf, 27 March: 34.5 µg/m³, 1.2× usual Bihār Sharīf, 28 March: 30.3 µg/m³, 1.0× usual Bihār Sharīf, 29 March: no reading Bihār Sharīf, 30 March: no reading Bihār Sharīf, 31 March: no reading Bihār Sharīf, 1 April: no reading Bihār Sharīf, 2 April: no reading Bihār Sharīf, 3 April: 65.9 µg/m³, 2.3× usual Bihār Sharīf, 4 April: 80.6 µg/m³, 2.8× usual Bihār Sharīf, 5 April: no reading Bihār Sharīf, 6 April: no reading Bihār Sharīf, 7 April: no reading Bihār Sharīf, 8 April: no reading Bihār Sharīf, 9 April: no reading Bhelai Bhelai, 20 March: 48.6 µg/m³, 1.2× usual Bhelai, 21 March: 36.9 µg/m³, 0.9× usual Bhelai, 22 March: 30.9 µg/m³, 0.8× usual Bhelai, 23 March: 38.0 µg/m³, 0.9× usual Bhelai, 24 March: 41.0 µg/m³, 1.0× usual Bhelai, 25 March: 39.0 µg/m³, 1.0× usual Bhelai, 26 March: 45.7 µg/m³, 1.1× usual Bhelai, 27 March: 53.4 µg/m³, 1.3× usual Bhelai, 28 March: 54.1 µg/m³, 1.3× usual Bhelai, 29 March: 39.2 µg/m³, 1.0× usual Bhelai, 30 March: 42.3 µg/m³, 1.0× usual Bhelai, 31 March: 53.7 µg/m³, 1.3× usual Bhelai, 1 April: 49.0 µg/m³, 1.2× usual Bhelai, 2 April: 48.1 µg/m³, 1.2× usual Bhelai, 3 April: 46.9 µg/m³, 1.1× usual Bhelai, 4 April: 43.3 µg/m³, 1.1× usual Bhelai, 5 April: 83.4 µg/m³, 2.0× usual Bhelai, 6 April: 98.0 µg/m³, 2.4× usual Bhelai, 7 April: 95.1 µg/m³, 2.3× usual Bhelai, 8 April: 65.5 µg/m³, 1.6× usual Bhelai, 9 April: no reading Rājgīr Rājgīr, 20 March: no reading Rājgīr, 21 March: no reading Rājgīr, 22 March: no reading Rājgīr, 23 March: no reading Rājgīr, 24 March: 44.4 µg/m³, 1.5× usual Rājgīr, 25 March: 33.6 µg/m³, 1.1× usual Rājgīr, 26 March: 29.6 µg/m³, 1.0× usual Rājgīr, 27 March: 23.3 µg/m³, 0.8× usual Rājgīr, 28 March: 25.3 µg/m³, 0.8× usual Rājgīr, 29 March: no reading Rājgīr, 30 March: no reading Rājgīr, 31 March: 22.7 µg/m³, 0.8× usual Rājgīr, 1 April: no reading Rājgīr, 2 April: 21.3 µg/m³, 0.7× usual Rājgīr, 3 April: 41.0 µg/m³, 1.4× usual Rājgīr, 4 April: 56.6 µg/m³, 1.9× usual Rājgīr, 5 April: 50.0 µg/m³, 1.7× usual Rājgīr, 6 April: 62.1 µg/m³, 2.1× usual Rājgīr, 7 April: no reading Rājgīr, 8 April: 128.0 µg/m³, 4.3× usual Rājgīr, 9 April: no reading 20 Mar 23 26 29 1 Apr 4 7 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 26 March 1.2 20× Aurangābād Bihar, India 13 27 March 20.5 7.8× Jhānsi Uttar Pradesh, India 2 6 April 17.9 5.5× Shillong Meghalaya, India 5 20 March 19.9 4.9× Rājgīr Bihar, India 1 8 April 29.9 4.3× Siwān Bihar, India 8 26 March 34.8 4.2× Maihar Madhya Pradesh, India 1 2 April 13.8 4.0× Siliguri West Bengal, India 8 31 March 32.1 3.9× Rourkela Odisha, India 6 28 March 51.0 3.6× Rairangpur Odisha, India 8 30 March 23.8 3.6× Guwahati Assam, India 9 26 March 34.8 3.6× Gangtok Sikkim, India 9 4 April 24.0 3.3× Kohima Nagaland, India 9 28 March 27.1 3.2× Hanumāngarh Rajasthan, India 2 22 March 26.5 3.0× Nagaon Assam, India 8 27 March 29.2 3.0× Loni Uttar Pradesh, India 1 27 March 110.0 3.0× Samāstipur Bihar, India 3 25 March 38.9 2.9× Bettiah Bihar, India 7 26 March 25.2 2.9× Bihār Sharīf Bihar, India 2 4 April 29.2 2.8× Prayagraj Uttar Pradesh, India 1 20 March 25.1 2.7× Mothīhāri Bihar, India 2 26 March 44.1 2.7× Sri Ganganagar Rajasthan, India 2 1 April 30.8 2.7× Rānīganj West Bengal, India 4 26 March 36.2 2.6× Shrīrāmpur West Bengal, India 1 25 March 33.2 2.6× Nalbāri Assam, India 2 23 March 50.5 2.6× Ghāziābād Uttar Pradesh, India 2 2 April 62.1 2.6× Sawai Madhopur Rajasthan, India 1 6 April 26.4 2.5× Mohali Punjab, India 2 8 April 27.2 2.5× Jabalpur Madhya Pradesh, India 1 1 April 28.0 2.5× Muzaffarnagar Uttar Pradesh, India 2 23 March 53.4 2.5× Bāghpat Uttar Pradesh, India 1 26 March 53.4 2.4× Purnia Bihar, India 1 28 March 44.4 2.4× Bhelai Chhattisgarh, India 1 6 April 40.9 2.4× Naharlagun Arunachal Pradesh, India 6 28 March 25.9 2.3× Patiāla Punjab, India 1 27 March 29.8 2.3× Dera Colliery Township Odisha, India 2 5 April 37.0 2.3× Baripāda Odisha, India 1 30 March 36.6 2.2× Durgapur West Bengal, India 1 27 March 40.0 2.2× Sasarām Bihar, India 6 27 March 49.1 2.1× Munger Bihar, India 2 28 March 31.9 2.1× Katihar Bihar, India 2 31 March 24.1 2.1× Keonjhargarh Odisha, India 2 29 March 37.8 2.1× Dehradun Uttarakhand, India 1 25 March 33.2 2.0× Hājīpur Bihar, India 1 27 March 82.7 2.0× Āsansol West Bengal, India 1 26 March 47.1 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 5 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 Bars: cities reached; colour: the level of the episode's highest daily reading. All 54 .
Use this page SmogRank, North-eastern India, March and April 2025: 45 cities with PM2.5 at twice their usual or more, 23 March to 6 April 2025, smogrank.com/episodes/2025-03-north-eastern-india (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.
