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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 | 17 January 2021 | 170 | AQI bulletin p.1–11, Index Value column: mean of all 123 city rows — every row in the table |
| Andhra Pradesh | 17 January 2021 | 101 | AQI bulletin p.1–11, Index Value column: mean of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.9), Tirupati (p.10), Visakhapatnam (p.11) |
| Assam | 17 January 2021 | 351 | AQI bulletin p.4, Index Value column: mean of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 17 January 2021 | 198 | AQI bulletin p.4–8, Index Value column: mean of 4 city rows placed in Bihar — Gaya (p.4), Hajipur (p.4), Muzaffarpur (p.7), Patna (p.8) |
| Chandigarh | 17 January 2021 | 97 | 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, 17 January 2021 (123 cities) (published 17 Jan 2021). Archived by the India Health Observatory on 3 Oct 2026, SHA-256 317533b5f4b743594588422f26240ebab8eefddee4f3346b5d6d53664561083a. https://indiahealthobservatory.com/sources/cpcb/releases/2123
| Delhi | 17 January 2021 | 347 | AQI bulletin p.3, Index Value column: mean of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 17 January 2021 | 202 | AQI bulletin p.1–10, Index Value column: mean of 5 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.4), Vapi (p.10), Vatva (p.10) |
| Haryana | 17 January 2021 | 184 | AQI bulletin p.1–11, Index Value column: mean of 20 city rows placed in Haryana — Ambala (p.1), Ballabgarh (p.2), 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), Kaithal (p.5), Karnal (p.6), Kurukshetra (p.6), Mandikhera (p.7), Manesar (p.7), Palwal (p.8), Rohtak (p.9), Sirsa (p.9), Sonipat (p.9), Yamunanagar (p.11) |
| Jharkhand | 17 January 2021 | 156 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Jharkhand — Jorapokhar (p.5) |
| Karnataka | 17 January 2021 | 79 | AQI bulletin p.2–11, Index Value column: mean of 14 city rows placed in Karnataka — Bengaluru (p.2), Bidar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Hubballi (p.4), Kolar (p.6), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.7), Raichur (p.8), Shivamogga (p.9), Vijayapura (p.10), Yadgir (p.11) |
| Kerala | 17 January 2021 | 59 | AQI bulletin p.3–10, Index Value column: mean of 6 city rows placed in Kerala — Eloor (p.3), Ernakulam (p.3), Kannur (p.5), Kollam (p.6), Thiruvananthapuram (p.10), Thrissur (p.10) |
| Madhya Pradesh | 17 January 2021 | 157 | AQI bulletin p.2–10, Index Value column: mean of 14 city rows placed in Madhya Pradesh — Bhopal (p.2), Damoh (p.3), Dewas (p.3), Gwalior (p.4), Indore (p.5), Jabalpur (p.5), Katni (p.6), Mandideep (p.7), Pithampur (p.8), Ratlam (p.9), Sagar (p.9), Satna (p.9), Singrauli (p.9), Ujjain (p.10) |
| Maharashtra | 17 January 2021 | 159 | AQI bulletin p.1–10, Index Value column: mean of 10 city rows placed in Maharashtra — Aurangabad (p.1), Chandrapur (p.2), Kalyan (p.5), Mumbai (p.7), Nagpur (p.8), Nashik (p.8), Navi Mumbai (p.8), Pune (p.8), Solapur (p.9), Thane (p.10) |
| Mizoram | 17 January 2021 | 158 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 17 January 2021 | 143 | AQI bulletin p.6, Index Value column: mean of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 17 January 2021 | 154 | AQI bulletin p.2–10, Index Value column: mean of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.10) |
| Puducherry | 17 January 2021 | 49 | AQI bulletin p.8, Index Value column: mean of 1 city row placed in Puducherry — Puducherry (p.8) |
| Punjab | 17 January 2021 | 106 | AQI bulletin p.1–9, Index Value column: mean of 8 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), Rupnagar (p.9) |
| Rajasthan | 17 January 2021 | 166 | 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 | 17 January 2021 | 53 | AQI bulletin p.3–10, Index Value column: mean of 2 city rows placed in Tamil Nadu — Chennai (p.3), Thoothukudi (p.10) |
| Telangana | 17 January 2021 | 135 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Telangana — Hyderabad (p.5) |
| Uttar Pradesh | 17 January 2021 | 318 | AQI bulletin p.1–10, Index Value column: mean of 12 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.1), Bulandshahr (p.2), Ghaziabad (p.4), Greater Noida (p.4), Kanpur (p.5), Lucknow (p.6), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.7), Noida (p.8), Varanasi (p.10) |
| West Bengal | 17 January 2021 | 316 | AQI bulletin p.1–9, Index Value column: mean of 6 city rows placed in West Bengal — Asansol (p.1), Durgapur (p.3), Haldia (p.4), Howrah (p.4), Kolkata (p.6), Siliguri (p.9) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 17 January 2021 | 123 | AQI bulletin p.1–11: count of all 123 city rows — every row in the table |
| Andhra Pradesh | 17 January 2021 | 4 | AQI bulletin p.1–11: count of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.9), Tirupati (p.10), Visakhapatnam (p.11) |
| Assam | 17 January 2021 | 1 | AQI bulletin p.4: count of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 17 January 2021 | 4 | AQI bulletin p.4–8: count of 4 city rows placed in Bihar — Gaya (p.4), Hajipur (p.4), Muzaffarpur (p.7), Patna (p.8) |
| Chandigarh | 17 January 2021 | 1 | AQI bulletin p.2: count of 1 city row placed in Chandigarh — Chandigarh (p.2) |
| Delhi | 17 January 2021 | 1 | AQI bulletin p.3: count of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 17 January 2021 | 5 | AQI bulletin p.1–10: count of 5 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.4), Vapi (p.10), Vatva (p.10) |
| Haryana | 17 January 2021 | 20 | AQI bulletin p.1–11: count of 20 city rows placed in Haryana — Ambala (p.1), Ballabgarh (p.2), 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), Kaithal (p.5), Karnal (p.6), Kurukshetra (p.6), Mandikhera (p.7), Manesar (p.7), Palwal (p.8), Rohtak (p.9), Sirsa (p.9), Sonipat (p.9), Yamunanagar (p.11) |
| Jharkhand | 17 January 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Jharkhand — Jorapokhar (p.5) |
| Karnataka | 17 January 2021 | 14 | AQI bulletin p.2–11: count of 14 city rows placed in Karnataka — Bengaluru (p.2), Bidar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Hubballi (p.4), Kolar (p.6), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.7), Raichur (p.8), Shivamogga (p.9), Vijayapura (p.10), Yadgir (p.11) |
| Kerala | 17 January 2021 | 6 | AQI bulletin p.3–10: count of 6 city rows placed in Kerala — Eloor (p.3), Ernakulam (p.3), Kannur (p.5), Kollam (p.6), Thiruvananthapuram (p.10), Thrissur (p.10) |
| Madhya Pradesh | 17 January 2021 | 14 | AQI bulletin p.2–10: count of 14 city rows placed in Madhya Pradesh — Bhopal (p.2), Damoh (p.3), Dewas (p.3), Gwalior (p.4), Indore (p.5), Jabalpur (p.5), Katni (p.6), Mandideep (p.7), Pithampur (p.8), Ratlam (p.9), Sagar (p.9), Satna (p.9), Singrauli (p.9), Ujjain (p.10) |
| Maharashtra | 17 January 2021 | 10 | AQI bulletin p.1–10: count of 10 city rows placed in Maharashtra — Aurangabad (p.1), Chandrapur (p.2), Kalyan (p.5), Mumbai (p.7), Nagpur (p.8), Nashik (p.8), Navi Mumbai (p.8), Pune (p.8), Solapur (p.9), Thane (p.10) |
| Mizoram | 17 January 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 17 January 2021 | 1 | AQI bulletin p.6: count of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 17 January 2021 | 2 | AQI bulletin p.2–10: count of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.10) |
| Puducherry | 17 January 2021 | 1 | AQI bulletin p.8: count of 1 city row placed in Puducherry — Puducherry (p.8) |
| Punjab | 17 January 2021 | 8 | AQI bulletin p.1–9: count of 8 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), Rupnagar (p.9) |
| Rajasthan | 17 January 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 | 17 January 2021 | 2 | AQI bulletin p.3–10: count of 2 city rows placed in Tamil Nadu — Chennai (p.3), Thoothukudi (p.10) |
| Telangana | 17 January 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Telangana — Hyderabad (p.5) |
| Uttar Pradesh | 17 January 2021 | 12 | AQI bulletin p.1–10: count of 12 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.1), Bulandshahr (p.2), Ghaziabad (p.4), Greater Noida (p.4), Kanpur (p.5), Lucknow (p.6), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.7), Noida (p.8), Varanasi (p.10) |
| West Bengal | 17 January 2021 | 6 | AQI bulletin p.1–9: count of 6 city rows placed in West Bengal — Asansol (p.1), Durgapur (p.3), Haldia (p.4), Howrah (p.4), Kolkata (p.6), Siliguri (p.9) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 17 January 2021 | 32% | AQI bulletin p.1–11, Index Value column: 39 of all 123 city rows at 201 or more — Agra 327 (p.1), Ahmedabad 202 (p.1), Ankleshwar 268 (p.1), Asansol 287 (p.1), Baghpat 233 (p.1), Ballabgarh 204 (p.2), Bhiwadi 312 (p.2), Bulandshahr 354 (p.2), Delhi 347 (p.3), Dharuhera 265 (p.3), Durgapur 353 (p.3), Faridabad 297 (p.3), Ghaziabad 368 (p.4), Greater Noida 384 (p.4), Gurugram 330 (p.4), Guwahati 351 (p.4), Gwalior 307 (p.4), Haldia 288 (p.4), Howrah 338 (p.4), Kalyan 295 (p.5) … and 19 more |
| Andhra Pradesh | 17 January 2021 | 0% | AQI bulletin p.1–11, Index Value column: none of 4 city rows placed in Andhra Pradesh at 201 or more (highest 131) |
| Assam | 17 January 2021 | 100% | AQI bulletin p.4, Index Value column: 1 of 1 city row placed in Assam at 201 or more — Guwahati 351 (p.4) |
| Bihar | 17 January 2021 | 25% | AQI bulletin p.4–8, Index Value column: 1 of 4 city rows placed in Bihar at 201 or more — Muzaffarpur 272 (p.7) |
| Chandigarh | 17 January 2021 | 0% | AQI bulletin p.2, Index Value column: none of 1 city row placed in Chandigarh at 201 or more (highest 97) |
| Delhi | 17 January 2021 | 100% | AQI bulletin p.3, Index Value column: 1 of 1 city row placed in Delhi at 201 or more — Delhi 347 (p.3) |
| Gujarat | 17 January 2021 | 60% | AQI bulletin p.1–10, Index Value column: 3 of 5 city rows placed in Gujarat at 201 or more — Ahmedabad 202 (p.1), Ankleshwar 268 (p.1), Vatva 276 (p.10) |
| Haryana | 17 January 2021 | 35% | AQI bulletin p.1–11, Index Value column: 7 of 20 city rows placed in Haryana at 201 or more — Ballabgarh 204 (p.2), Dharuhera 265 (p.3), Faridabad 297 (p.3), Gurugram 330 (p.4), Manesar 219 (p.7), Rohtak 255 (p.9), Yamunanagar 224 (p.11) |
| Jharkhand | 17 January 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Jharkhand at 201 or more (highest 156) |
| Karnataka | 17 January 2021 | 0% | AQI bulletin p.2–11, Index Value column: none of 14 city rows placed in Karnataka at 201 or more (highest 141) |
| Kerala | 17 January 2021 | 0% | AQI bulletin p.3–10, Index Value column: none of 6 city rows placed in Kerala at 201 or more (highest 85) |
| Madhya Pradesh | 17 January 2021 | 21% | AQI bulletin p.2–10, Index Value column: 3 of 14 city rows placed in Madhya Pradesh at 201 or more — Gwalior 307 (p.4), Katni 221 (p.6), Singrauli 351 (p.9) |
| Maharashtra | 17 January 2021 | 30% | AQI bulletin p.1–10, Index Value column: 3 of 10 city rows placed in Maharashtra at 201 or more — Kalyan 295 (p.5), Navi Mumbai 301 (p.8), Thane 229 (p.10) |
| Mizoram | 17 January 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Mizoram at 201 or more (highest 158) |
| Nagaland | 17 January 2021 | 0% | AQI bulletin p.6, Index Value column: none of 1 city row placed in Nagaland at 201 or more (highest 143) |
| Odisha | 17 January 2021 | 0% | AQI bulletin p.2–10, Index Value column: none of 2 city rows placed in Odisha at 201 or more (highest 165) |
| Puducherry | 17 January 2021 | 0% | AQI bulletin p.8, Index Value column: none of 1 city row placed in Puducherry at 201 or more (highest 49) |
| Punjab | 17 January 2021 | 0% | AQI bulletin p.1–9, Index Value column: none of 8 city rows placed in Punjab at 201 or more (highest 189) |
| Rajasthan | 17 January 2021 | 25% | AQI bulletin p.1–10, Index Value column: 2 of 8 city rows placed in Rajasthan at 201 or more — Bhiwadi 312 (p.2), Kota 226 (p.6) |
| Tamil Nadu | 17 January 2021 | 0% | AQI bulletin p.3–10, Index Value column: none of 2 city rows placed in Tamil Nadu at 201 or more (highest 63) |
| Telangana | 17 January 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Telangana at 201 or more (highest 135) |
| Uttar Pradesh | 17 January 2021 | 100% | AQI bulletin p.1–10, Index Value column: 12 of 12 city rows placed in Uttar Pradesh at 201 or more — Agra 327 (p.1), Baghpat 233 (p.1), Bulandshahr 354 (p.2), Ghaziabad 368 (p.4), Greater Noida 384 (p.4), Kanpur 368 (p.5), Lucknow 320 (p.6), Meerut 296 (p.7), Moradabad 332 (p.7), Muzaffarnagar 243 (p.7), Noida 383 (p.8), Varanasi 209 (p.10) |
| West Bengal | 17 January 2021 | 100% | AQI bulletin p.1–9, Index Value column: 6 of 6 city rows placed in West Bengal at 201 or more — Asansol 287 (p.1), Durgapur 353 (p.3), Haldia 288 (p.4), Howrah 338 (p.4), Kolkata 327 (p.6), Siliguri 302 (p.9) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 17 January 2021 | 384 | AQI bulletin p.1–11, Index Value column: highest of all 123 city rows — Greater Noida, S.No 40 (p.4), Very Poor |
| Andhra Pradesh | 17 January 2021 | 131 | AQI bulletin p.1–11, Index Value column: highest of 4 city rows placed in Andhra Pradesh — Visakhapatnam, S.No 121 (p.11), Moderate |
| Assam | 17 January 2021 | 351 | AQI bulletin p.4, Index Value column: highest of 1 city row placed in Assam — Guwahati, S.No 42 (p.4), Very Poor |
| Bihar | 17 January 2021 | 272 | AQI bulletin p.4–8, Index Value column: highest of 4 city rows placed in Bihar — Muzaffarpur, S.No 83 (p.7), Poor |
| Chandigarh | 17 January 2021 | 97 | AQI bulletin p.2, Index Value column: highest of 1 city row placed in Chandigarh — Chandigarh, S.No 22 (p.2), Satisfactory |
| Delhi | 17 January 2021 | 347 | AQI bulletin p.3, Index Value column: highest of 1 city row placed in Delhi — Delhi, S.No 29 (p.3), Very Poor |
| Gujarat | 17 January 2021 | 276 | AQI bulletin p.1–10, Index Value column: highest of 5 city rows placed in Gujarat — Vatva, S.No 119 (p.10), Poor |
| Haryana | 17 January 2021 | 330 | AQI bulletin p.1–11, Index Value column: highest of 20 city rows placed in Haryana — Gurugram, S.No 41 (p.4), Very Poor |
| Jharkhand | 17 January 2021 | 156 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Jharkhand — Jorapokhar, S.No 56 (p.5), Moderate |
| Karnataka | 17 January 2021 | 141 | AQI bulletin p.2–11, Index Value column: highest of 14 city rows placed in Karnataka — Raichur, S.No 96 (p.8), Moderate |
| Kerala | 17 January 2021 | 85 | AQI bulletin p.3–10, Index Value column: highest of 6 city rows placed in Kerala — Eloor, S.No 33 (p.3), Satisfactory |
| Madhya Pradesh | 17 January 2021 | 351 | AQI bulletin p.2–10, Index Value column: highest of 14 city rows placed in Madhya Pradesh — Singrauli, S.No 105 (p.9), Very Poor |
| Maharashtra | 17 January 2021 | 301 | AQI bulletin p.1–10, Index Value column: highest of 10 city rows placed in Maharashtra — Navi Mumbai, S.No 87 (p.8), Very Poor |
| Mizoram | 17 January 2021 | 158 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Mizoram — Aizawl, S.No 3 (p.1), Moderate |
| Nagaland | 17 January 2021 | 143 | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Nagaland — Kohima, S.No 64 (p.6), Moderate |
| Odisha | 17 January 2021 | 165 | AQI bulletin p.2–10, Index Value column: highest of 2 city rows placed in Odisha — Brajrajnagar, S.No 20 (p.2), Moderate |
| Puducherry | 17 January 2021 | 49 | AQI bulletin p.8, Index Value column: highest of 1 city row placed in Puducherry — Puducherry, S.No 94 (p.8), Good |
| Punjab | 17 January 2021 | 189 | AQI bulletin p.1–9, Index Value column: highest of 8 city rows placed in Punjab — Mandi Gobindgarh, S.No 73 (p.7), Moderate |
| Rajasthan | 17 January 2021 | 312 | AQI bulletin p.1–10, Index Value column: highest of 8 city rows placed in Rajasthan — Bhiwadi, S.No 16 (p.2), Very Poor |
| Tamil Nadu | 17 January 2021 | 63 | AQI bulletin p.3–10, Index Value column: highest of 2 city rows placed in Tamil Nadu — Chennai, S.No 25 (p.3), Satisfactory |
| Telangana | 17 January 2021 | 135 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 49 (p.5), Moderate |
| Uttar Pradesh | 17 January 2021 | 384 | AQI bulletin p.1–10, Index Value column: highest of 12 city rows placed in Uttar Pradesh — Greater Noida, S.No 40 (p.4), Very Poor |
| West Bengal | 17 January 2021 | 353 | AQI bulletin p.1–9, Index Value column: highest of 6 city rows placed in West Bengal — Durgapur, S.No 32 (p.3), Very Poor |