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Release from Central Pollution Control Board, Ministry of Environment, Forest and Climate Change
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| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 20 October 2021 | 118 | AQI bulletin p.1–11, Index Value column: mean of all 121 city rows — every row in the table |
| Andhra Pradesh | 20 October 2021 | 106 | AQI bulletin p.1–10, Index Value column: mean of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.9), Tirupati (p.10), Visakhapatnam (p.10) |
| Assam | 20 October 2021 | 62 | AQI bulletin p.4, Index Value column: mean of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 20 October 2021 | 49 | AQI bulletin p.3–8, Index Value column: mean of 4 city rows placed in Bihar — Gaya (p.3), Hajipur (p.4), Muzaffarpur (p.7), Patna (p.8) |
| Chandigarh | 20 October 2021 | 142 | AQI bulletin p.2, Index Value column: mean of 1 city row placed in Chandigarh — Chandigarh (p.2) |
Central Pollution Control Board, Ministry of Environment, Forest and Climate Change. CPCB National Air Quality Index bulletin, 20 October 2021 (121 cities) (published 20 Oct 2021). Archived by the India Health Observatory on 3 Oct 2026, SHA-256 360ddb92b4982e21ba22b78ef0de54f3205bdbdeded88e26e33d90312fd92b45. https://indiahealthobservatory.com/sources/cpcb/releases/1847
| Chhattisgarh | 20 October 2021 | 65 | AQI bulletin p.2, Index Value column: mean of 1 city row placed in Chhattisgarh — Bilaspur (p.2) |
| Delhi | 20 October 2021 | 221 | AQI bulletin p.3, Index Value column: mean of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 20 October 2021 | 119 | AQI bulletin p.1–10, Index Value column: mean of 6 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.3), Nandesari (p.8), Vapi (p.10), Vatva (p.10) |
| Haryana | 20 October 2021 | 183 | AQI bulletin p.1–11, Index Value column: mean of 21 city rows placed in Haryana — Bahadurgarh (p.1), Ballabgarh (p.1), Bhiwani (p.2), Charkhi Dadri (p.2), Dharuhera (p.3), Faridabad (p.3), Fatehabad (p.3), Gurugram (p.4), Hisar (p.4), Jind (p.5), Karnal (p.6), Kurukshetra (p.6), Mandikhera (p.7), Manesar (p.7), Palwal (p.8), Panchkula (p.8), Panipat (p.8), Rohtak (p.9), Sirsa (p.9), Sonipat (p.9), Yamunanagar (p.11) |
| Jammu and Kashmir | 20 October 2021 | 46 | AQI bulletin p.9, Index Value column: mean of 1 city row placed in Jammu and Kashmir — Srinagar (p.9) |
| Karnataka | 20 October 2021 | 70 | AQI bulletin p.1–10, Index Value column: mean of 18 city rows placed in Karnataka — Bagalkot (p.1), Bengaluru (p.2), Chamarajanagar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Davanagere (p.3), Hassan (p.4), Hubballi (p.5), Kalaburgi (p.5), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.7), Ramanagara (p.9), Shivamogga (p.9), Udupi (p.10), Vijayapura (p.10), Yadgir (p.10) |
| Kerala | 20 October 2021 | 72 | AQI bulletin p.6–9, Index Value column: mean of 3 city rows placed in Kerala — Kochi (p.6), Kollam (p.6), Thiruvananthapuram (p.9) |
| Madhya Pradesh | 20 October 2021 | 94 | AQI bulletin p.2–10, Index Value column: mean of 12 city rows placed in Madhya Pradesh — Bhopal (p.2), Dewas (p.3), Gwalior (p.4), Indore (p.5), Jabalpur (p.5), Katni (p.6), Mandideep (p.7), Pithampur (p.8), Ratlam (p.9), Satna (p.9), Singrauli (p.9), Ujjain (p.10) |
| Maharashtra | 20 October 2021 | 92 | AQI bulletin p.2–9, Index Value column: mean of 6 city rows placed in Maharashtra — Chandrapur (p.2), Kalyan (p.5), Mumbai (p.7), Nashik (p.8), Navi Mumbai (p.8), Pune (p.9) |
| Nagaland | 20 October 2021 | 37 | AQI bulletin p.6, Index Value column: mean of 1 city row placed in Nagaland — Kohima (p.6) |
| Punjab | 20 October 2021 | 141 | AQI bulletin p.1–8, Index Value column: mean of 7 city rows placed in Punjab — Amritsar (p.1), Bathinda (p.2), Jalandhar (p.5), Khanna (p.6), Ludhiana (p.6), Mandi Gobindgarh (p.7), Patiala (p.8) |
| Rajasthan | 20 October 2021 | 129 | AQI bulletin p.1–10, Index Value column: mean of 8 city rows placed in Rajasthan — Ajmer (p.1), Alwar (p.1), Bhiwadi (p.2), Jaipur (p.5), Jodhpur (p.5), Kota (p.6), Pali (p.8), Udaipur (p.10) |
| Tamil Nadu | 20 October 2021 | 94 | AQI bulletin p.2–10, Index Value column: mean of 3 city rows placed in Tamil Nadu — Chennai (p.2), Gummidipoondi (p.4), Thoothukudi (p.10) |
| Telangana | 20 October 2021 | 128 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 20 October 2021 | 26 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 20 October 2021 | 159 | AQI bulletin p.1–10, Index Value column: mean of 17 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.1), Bulandshahr (p.2), Firozabad (p.3), Ghaziabad (p.4), Gorakhpur (p.4), Greater Noida (p.4), Hapur (p.4), Kanpur (p.5), Lucknow (p.6), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.7), Noida (p.8), Prayagraj (p.8), Varanasi (p.10), Vrindavan (p.10) |
| West Bengal | 20 October 2021 | 51 | AQI bulletin p.3–6, Index Value column: mean of 4 city rows placed in West Bengal — Durgapur (p.3), Haldia (p.4), Howrah (p.5), Kolkata (p.6) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 20 October 2021 | 121 | AQI bulletin p.1–11: count of all 121 city rows — every row in the table |
| Andhra Pradesh | 20 October 2021 | 4 | AQI bulletin p.1–10: count of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.9), Tirupati (p.10), Visakhapatnam (p.10) |
| Assam | 20 October 2021 | 1 | AQI bulletin p.4: count of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 20 October 2021 | 4 | AQI bulletin p.3–8: count of 4 city rows placed in Bihar — Gaya (p.3), Hajipur (p.4), Muzaffarpur (p.7), Patna (p.8) |
| Chandigarh | 20 October 2021 | 1 | AQI bulletin p.2: count of 1 city row placed in Chandigarh — Chandigarh (p.2) |
| Chhattisgarh | 20 October 2021 | 1 | AQI bulletin p.2: count of 1 city row placed in Chhattisgarh — Bilaspur (p.2) |
| Delhi | 20 October 2021 | 1 | AQI bulletin p.3: count of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 20 October 2021 | 6 | AQI bulletin p.1–10: count of 6 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.3), Nandesari (p.8), Vapi (p.10), Vatva (p.10) |
| Haryana | 20 October 2021 | 21 | AQI bulletin p.1–11: count of 21 city rows placed in Haryana — Bahadurgarh (p.1), Ballabgarh (p.1), Bhiwani (p.2), Charkhi Dadri (p.2), Dharuhera (p.3), Faridabad (p.3), Fatehabad (p.3), Gurugram (p.4), Hisar (p.4), Jind (p.5), Karnal (p.6), Kurukshetra (p.6), Mandikhera (p.7), Manesar (p.7), Palwal (p.8), Panchkula (p.8), Panipat (p.8), Rohtak (p.9), Sirsa (p.9), Sonipat (p.9), Yamunanagar (p.11) |
| Jammu and Kashmir | 20 October 2021 | 1 | AQI bulletin p.9: count of 1 city row placed in Jammu and Kashmir — Srinagar (p.9) |
| Karnataka | 20 October 2021 | 18 | AQI bulletin p.1–10: count of 18 city rows placed in Karnataka — Bagalkot (p.1), Bengaluru (p.2), Chamarajanagar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Davanagere (p.3), Hassan (p.4), Hubballi (p.5), Kalaburgi (p.5), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.7), Ramanagara (p.9), Shivamogga (p.9), Udupi (p.10), Vijayapura (p.10), Yadgir (p.10) |
| Kerala | 20 October 2021 | 3 | AQI bulletin p.6–9: count of 3 city rows placed in Kerala — Kochi (p.6), Kollam (p.6), Thiruvananthapuram (p.9) |
| Madhya Pradesh | 20 October 2021 | 12 | AQI bulletin p.2–10: count of 12 city rows placed in Madhya Pradesh — Bhopal (p.2), Dewas (p.3), Gwalior (p.4), Indore (p.5), Jabalpur (p.5), Katni (p.6), Mandideep (p.7), Pithampur (p.8), Ratlam (p.9), Satna (p.9), Singrauli (p.9), Ujjain (p.10) |
| Maharashtra | 20 October 2021 | 6 | AQI bulletin p.2–9: count of 6 city rows placed in Maharashtra — Chandrapur (p.2), Kalyan (p.5), Mumbai (p.7), Nashik (p.8), Navi Mumbai (p.8), Pune (p.9) |
| Nagaland | 20 October 2021 | 1 | AQI bulletin p.6: count of 1 city row placed in Nagaland — Kohima (p.6) |
| Punjab | 20 October 2021 | 7 | AQI bulletin p.1–8: count of 7 city rows placed in Punjab — Amritsar (p.1), Bathinda (p.2), Jalandhar (p.5), Khanna (p.6), Ludhiana (p.6), Mandi Gobindgarh (p.7), Patiala (p.8) |
| Rajasthan | 20 October 2021 | 8 | AQI bulletin p.1–10: count of 8 city rows placed in Rajasthan — Ajmer (p.1), Alwar (p.1), Bhiwadi (p.2), Jaipur (p.5), Jodhpur (p.5), Kota (p.6), Pali (p.8), Udaipur (p.10) |
| Tamil Nadu | 20 October 2021 | 3 | AQI bulletin p.2–10: count of 3 city rows placed in Tamil Nadu — Chennai (p.2), Gummidipoondi (p.4), Thoothukudi (p.10) |
| Telangana | 20 October 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 20 October 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 20 October 2021 | 17 | AQI bulletin p.1–10: count of 17 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.1), Bulandshahr (p.2), Firozabad (p.3), Ghaziabad (p.4), Gorakhpur (p.4), Greater Noida (p.4), Hapur (p.4), Kanpur (p.5), Lucknow (p.6), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.7), Noida (p.8), Prayagraj (p.8), Varanasi (p.10), Vrindavan (p.10) |
| West Bengal | 20 October 2021 | 4 | AQI bulletin p.3–6: count of 4 city rows placed in West Bengal — Durgapur (p.3), Haldia (p.4), Howrah (p.5), Kolkata (p.6) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 20 October 2021 | 16% | AQI bulletin p.1–11, Index Value column: 19 of all 121 city rows at 201 or more — Baghpat 239 (p.1), Bahadurgarh 215 (p.1), Ballabgarh 339 (p.1), Bhiwadi 234 (p.2), Bulandshahr 250 (p.2), Delhi 221 (p.3), Faridabad 224 (p.3), Ghaziabad 278 (p.4), Greater Noida 260 (p.4), Gurugram 235 (p.4), Hapur 253 (p.4), Hisar 202 (p.4), Jind 268 (p.5), Jodhpur 201 (p.5), Karnal 205 (p.6), Manesar 226 (p.7), Meerut 245 (p.7), Noida 240 (p.8), Rohtak 243 (p.9) |
| Andhra Pradesh | 20 October 2021 | 0% | AQI bulletin p.1–10, Index Value column: none of 4 city rows placed in Andhra Pradesh at 201 or more (highest 140) |
| Assam | 20 October 2021 | 0% | AQI bulletin p.4, Index Value column: none of 1 city row placed in Assam at 201 or more (highest 62) |
| Bihar | 20 October 2021 | 0% | AQI bulletin p.3–8, Index Value column: none of 4 city rows placed in Bihar at 201 or more (highest 53) |
| Chandigarh | 20 October 2021 | 0% | AQI bulletin p.2, Index Value column: none of 1 city row placed in Chandigarh at 201 or more (highest 142) |
| Chhattisgarh | 20 October 2021 | 0% | AQI bulletin p.2, Index Value column: none of 1 city row placed in Chhattisgarh at 201 or more (highest 65) |
| Delhi | 20 October 2021 | 100% | AQI bulletin p.3, Index Value column: 1 of 1 city row placed in Delhi at 201 or more — Delhi 221 (p.3) |
| Gujarat | 20 October 2021 | 0% | AQI bulletin p.1–10, Index Value column: none of 6 city rows placed in Gujarat at 201 or more (highest 163) |
| Haryana | 20 October 2021 | 43% | AQI bulletin p.1–11, Index Value column: 9 of 21 city rows placed in Haryana at 201 or more — Bahadurgarh 215 (p.1), Ballabgarh 339 (p.1), Faridabad 224 (p.3), Gurugram 235 (p.4), Hisar 202 (p.4), Jind 268 (p.5), Karnal 205 (p.6), Manesar 226 (p.7), Rohtak 243 (p.9) |
| Jammu and Kashmir | 20 October 2021 | 0% | AQI bulletin p.9, Index Value column: none of 1 city row placed in Jammu and Kashmir at 201 or more (highest 46) |
| Karnataka | 20 October 2021 | 0% | AQI bulletin p.1–10, Index Value column: none of 18 city rows placed in Karnataka at 201 or more (highest 108) |
| Kerala | 20 October 2021 | 0% | AQI bulletin p.6–9, Index Value column: none of 3 city rows placed in Kerala at 201 or more (highest 89) |
| Madhya Pradesh | 20 October 2021 | 0% | AQI bulletin p.2–10, Index Value column: none of 12 city rows placed in Madhya Pradesh at 201 or more (highest 128) |
| Maharashtra | 20 October 2021 | 0% | AQI bulletin p.2–9, Index Value column: none of 6 city rows placed in Maharashtra at 201 or more (highest 121) |
| Nagaland | 20 October 2021 | 0% | AQI bulletin p.6, Index Value column: none of 1 city row placed in Nagaland at 201 or more (highest 37) |
| Punjab | 20 October 2021 | 0% | AQI bulletin p.1–8, Index Value column: none of 7 city rows placed in Punjab at 201 or more (highest 183) |
| Rajasthan | 20 October 2021 | 25% | AQI bulletin p.1–10, Index Value column: 2 of 8 city rows placed in Rajasthan at 201 or more — Bhiwadi 234 (p.2), Jodhpur 201 (p.5) |
| Tamil Nadu | 20 October 2021 | 0% | AQI bulletin p.2–10, Index Value column: none of 3 city rows placed in Tamil Nadu at 201 or more (highest 128) |
| Telangana | 20 October 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Telangana at 201 or more (highest 128) |
| Tripura | 20 October 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Tripura at 201 or more (highest 26) |
| Uttar Pradesh | 20 October 2021 | 41% | AQI bulletin p.1–10, Index Value column: 7 of 17 city rows placed in Uttar Pradesh at 201 or more — Baghpat 239 (p.1), Bulandshahr 250 (p.2), Ghaziabad 278 (p.4), Greater Noida 260 (p.4), Hapur 253 (p.4), Meerut 245 (p.7), Noida 240 (p.8) |
| West Bengal | 20 October 2021 | 0% | AQI bulletin p.3–6, Index Value column: none of 4 city rows placed in West Bengal at 201 or more (highest 88) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 20 October 2021 | 339 | AQI bulletin p.1–11, Index Value column: highest of all 121 city rows — Ballabgarh, S.No 12 (p.1), Very Poor |
| Andhra Pradesh | 20 October 2021 | 140 | AQI bulletin p.1–10, Index Value column: highest of 4 city rows placed in Andhra Pradesh — Visakhapatnam, S.No 118 (p.10), Moderate |
| Assam | 20 October 2021 | 62 | AQI bulletin p.4, Index Value column: highest of 1 city row placed in Assam — Guwahati, S.No 42 (p.4), Satisfactory |
| Bihar | 20 October 2021 | 53 | AQI bulletin p.3–8, Index Value column: highest of 4 city rows placed in Bihar — Gaya, S.No 36 (p.3), Satisfactory |
| Chandigarh | 20 October 2021 | 142 | AQI bulletin p.2, Index Value column: highest of 1 city row placed in Chandigarh — Chandigarh, S.No 21 (p.2), Moderate |
| Chhattisgarh | 20 October 2021 | 65 | AQI bulletin p.2, Index Value column: highest of 1 city row placed in Chhattisgarh — Bilaspur, S.No 18 (p.2), Satisfactory |
| Delhi | 20 October 2021 | 221 | AQI bulletin p.3, Index Value column: highest of 1 city row placed in Delhi — Delhi, S.No 28 (p.3), Poor |
| Gujarat | 20 October 2021 | 163 | AQI bulletin p.1–10, Index Value column: highest of 6 city rows placed in Gujarat — Ankleshwar, S.No 8 (p.1), Moderate |
| Haryana | 20 October 2021 | 339 | AQI bulletin p.1–11, Index Value column: highest of 21 city rows placed in Haryana — Ballabgarh, S.No 12 (p.1), Very Poor |
| Jammu and Kashmir | 20 October 2021 | 46 | AQI bulletin p.9, Index Value column: highest of 1 city row placed in Jammu and Kashmir — Srinagar, S.No 107 (p.9), Good |
| Karnataka | 20 October 2021 | 108 | AQI bulletin p.1–10, Index Value column: highest of 18 city rows placed in Karnataka — Kalaburgi, S.No 58 (p.5), Moderate |
| Kerala | 20 October 2021 | 89 | AQI bulletin p.6–9, Index Value column: highest of 3 city rows placed in Kerala — Kollam, S.No 67 (p.6), Satisfactory |
| Madhya Pradesh | 20 October 2021 | 128 | AQI bulletin p.2–10, Index Value column: highest of 12 city rows placed in Madhya Pradesh — Indore, S.No 52 (p.5), Moderate |
| Maharashtra | 20 October 2021 | 121 | AQI bulletin p.2–9, Index Value column: highest of 6 city rows placed in Maharashtra — Chandrapur, S.No 22 (p.2), Moderate |
| Nagaland | 20 October 2021 | 37 | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Nagaland — Kohima, S.No 65 (p.6), Good |
| Punjab | 20 October 2021 | 183 | AQI bulletin p.1–8, Index Value column: highest of 7 city rows placed in Punjab — Khanna, S.No 63 (p.6), Moderate |
| Rajasthan | 20 October 2021 | 234 | AQI bulletin p.1–10, Index Value column: highest of 8 city rows placed in Rajasthan — Bhiwadi, S.No 15 (p.2), Poor |
| Tamil Nadu | 20 October 2021 | 128 | AQI bulletin p.2–10, Index Value column: highest of 3 city rows placed in Tamil Nadu — Gummidipoondi, S.No 40 (p.4), Moderate |
| Telangana | 20 October 2021 | 128 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 51 (p.5), Moderate |
| Tripura | 20 October 2021 | 26 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Tripura — Agartala, S.No 1 (p.1), Good |
| Uttar Pradesh | 20 October 2021 | 278 | AQI bulletin p.1–10, Index Value column: highest of 17 city rows placed in Uttar Pradesh — Ghaziabad, S.No 37 (p.4), Poor |
| West Bengal | 20 October 2021 | 88 | AQI bulletin p.3–6, Index Value column: highest of 4 city rows placed in West Bengal — Durgapur, S.No 31 (p.3), Satisfactory |