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Release from Central Pollution Control Board, Ministry of Environment, Forest and Climate Change
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Fetched directly from the publisher on 3 Oct 2026, 21:00 IST. The copy below is byte-for-byte what the publisher served.
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 21 January 2021 | 169 | AQI bulletin p.1–11, Index Value column: mean of all 129 city rows — every row in the table |
| Andhra Pradesh | 21 January 2021 | 128 | 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 | 21 January 2021 | 76 | AQI bulletin p.4, Index Value column: mean of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 21 January 2021 | 283 | AQI bulletin p.4–9, Index Value column: mean of 4 city rows placed in Bihar — Gaya (p.4), Hajipur (p.4), Muzaffarpur (p.8), Patna (p.9) |
| Chandigarh | 21 January 2021 | 144 | 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, 21 January 2021 (129 cities) (published 21 Jan 2021). Archived by the India Health Observatory on 3 Oct 2026, SHA-256 28f2ed37cd6fed2e50a8fbc38321ca75fe74d44a62bd6854b8de5ab2ca350936. https://indiahealthobservatory.com/sources/cpcb/releases/2121
| Delhi | 21 January 2021 | 296 | AQI bulletin p.3, Index Value column: mean of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 21 January 2021 | 199 | AQI bulletin p.1–11, Index Value column: mean of 6 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.4), Nandesari (p.8), Vapi (p.11), Vatva (p.11) |
| Haryana | 21 January 2021 | 182 | AQI bulletin p.1–11, Index Value column: mean of 22 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Bhiwani (p.2), Charkhi Dadri (p.3), Dharuhera (p.3), Faridabad (p.3), Fatehabad (p.4), Gurugram (p.4), Hisar (p.4), Jind (p.5), Karnal (p.6), Kurukshetra (p.7), Mandikhera (p.7), Manesar (p.7), Narnaul (p.8), Palwal (p.8), Panchkula (p.9), Rohtak (p.9), Sirsa (p.10), Sonipat (p.10), Yamunanagar (p.11) |
| Jharkhand | 21 January 2021 | 153 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Jharkhand — Jorapokhar (p.5) |
| Karnataka | 21 January 2021 | 91 | AQI bulletin p.2–11, Index Value column: mean of 17 city rows placed in Karnataka — Bagalkot (p.2), Bengaluru (p.2), Bidar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Gadag (p.4), Hubballi (p.5), Kalaburgi (p.5), Kolar (p.6), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.8), Raichur (p.9), Ramanagara (p.9), Vijayapura (p.11), Yadgir (p.11) |
| Kerala | 21 January 2021 | 129 | AQI bulletin p.3–10, Index Value column: mean of 5 city rows placed in Kerala — Eloor (p.3), Kannur (p.6), Kollam (p.6), Kozhikode (p.6), Thiruvananthapuram (p.10) |
| Madhya Pradesh | 21 January 2021 | 155 | AQI bulletin p.2–11, Index Value column: mean of 15 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), Maihar (p.7), Mandideep (p.7), Pithampur (p.9), Ratlam (p.9), Sagar (p.10), Satna (p.10), Singrauli (p.10), Ujjain (p.11) |
| Maharashtra | 21 January 2021 | 156 | AQI bulletin p.1–10, Index Value column: mean of 9 city rows placed in Maharashtra — Aurangabad (p.1), Chandrapur (p.3), Kalyan (p.5), Mumbai (p.8), Nagpur (p.8), Nashik (p.8), Navi Mumbai (p.8), Pune (p.9), Thane (p.10) |
| Meghalaya | 21 January 2021 | 66 | AQI bulletin p.10, Index Value column: mean of 1 city row placed in Meghalaya — Shillong (p.10) |
| Mizoram | 21 January 2021 | 193 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 21 January 2021 | 225 | AQI bulletin p.6, Index Value column: mean of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 21 January 2021 | 170 | AQI bulletin p.2–10, Index Value column: mean of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.10) |
| Puducherry | 21 January 2021 | 81 | AQI bulletin p.9, Index Value column: mean of 1 city row placed in Puducherry — Puducherry (p.9) |
| Punjab | 21 January 2021 | 126 | AQI bulletin p.1–9, Index Value column: mean of 7 city rows placed in Punjab — Amritsar (p.1), Jalandhar (p.5), Khanna (p.6), Ludhiana (p.7), Mandi Gobindgarh (p.7), Patiala (p.9), Rupnagar (p.9) |
| Rajasthan | 21 January 2021 | 145 | AQI bulletin p.1–11, 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.11) |
| Tamil Nadu | 21 January 2021 | 80 | AQI bulletin p.3–10, Index Value column: mean of 2 city rows placed in Tamil Nadu — Chennai (p.3), Thoothukudi (p.10) |
| Telangana | 21 January 2021 | 114 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 21 January 2021 | 216 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 21 January 2021 | 281 | AQI bulletin p.1–11, Index Value column: mean of 12 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.2), Bulandshahr (p.2), Ghaziabad (p.4), Greater Noida (p.4), Kanpur (p.6), Lucknow (p.7), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.8), Noida (p.8), Varanasi (p.11) |
| West Bengal | 21 January 2021 | 264 | AQI bulletin p.1–10, Index Value column: mean of 6 city rows placed in West Bengal — Asansol (p.1), Durgapur (p.3), Haldia (p.4), Howrah (p.5), Kolkata (p.6), Siliguri (p.10) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 21 January 2021 | 129 | AQI bulletin p.1–11: count of all 129 city rows — every row in the table |
| Andhra Pradesh | 21 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 | 21 January 2021 | 1 | AQI bulletin p.4: count of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 21 January 2021 | 4 | AQI bulletin p.4–9: count of 4 city rows placed in Bihar — Gaya (p.4), Hajipur (p.4), Muzaffarpur (p.8), Patna (p.9) |
| Chandigarh | 21 January 2021 | 1 | AQI bulletin p.2: count of 1 city row placed in Chandigarh — Chandigarh (p.2) |
| Delhi | 21 January 2021 | 1 | AQI bulletin p.3: count of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 21 January 2021 | 6 | AQI bulletin p.1–11: count of 6 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.4), Nandesari (p.8), Vapi (p.11), Vatva (p.11) |
| Haryana | 21 January 2021 | 22 | AQI bulletin p.1–11: count of 22 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Bhiwani (p.2), Charkhi Dadri (p.3), Dharuhera (p.3), Faridabad (p.3), Fatehabad (p.4), Gurugram (p.4), Hisar (p.4), Jind (p.5), Karnal (p.6), Kurukshetra (p.7), Mandikhera (p.7), Manesar (p.7), Narnaul (p.8), Palwal (p.8), Panchkula (p.9), Rohtak (p.9), Sirsa (p.10), Sonipat (p.10), Yamunanagar (p.11) |
| Jharkhand | 21 January 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Jharkhand — Jorapokhar (p.5) |
| Karnataka | 21 January 2021 | 17 | AQI bulletin p.2–11: count of 17 city rows placed in Karnataka — Bagalkot (p.2), Bengaluru (p.2), Bidar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Gadag (p.4), Hubballi (p.5), Kalaburgi (p.5), Kolar (p.6), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.8), Raichur (p.9), Ramanagara (p.9), Vijayapura (p.11), Yadgir (p.11) |
| Kerala | 21 January 2021 | 5 | AQI bulletin p.3–10: count of 5 city rows placed in Kerala — Eloor (p.3), Kannur (p.6), Kollam (p.6), Kozhikode (p.6), Thiruvananthapuram (p.10) |
| Madhya Pradesh | 21 January 2021 | 15 | AQI bulletin p.2–11: count of 15 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), Maihar (p.7), Mandideep (p.7), Pithampur (p.9), Ratlam (p.9), Sagar (p.10), Satna (p.10), Singrauli (p.10), Ujjain (p.11) |
| Maharashtra | 21 January 2021 | 9 | AQI bulletin p.1–10: count of 9 city rows placed in Maharashtra — Aurangabad (p.1), Chandrapur (p.3), Kalyan (p.5), Mumbai (p.8), Nagpur (p.8), Nashik (p.8), Navi Mumbai (p.8), Pune (p.9), Thane (p.10) |
| Meghalaya | 21 January 2021 | 1 | AQI bulletin p.10: count of 1 city row placed in Meghalaya — Shillong (p.10) |
| Mizoram | 21 January 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 21 January 2021 | 1 | AQI bulletin p.6: count of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 21 January 2021 | 2 | AQI bulletin p.2–10: count of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.10) |
| Puducherry | 21 January 2021 | 1 | AQI bulletin p.9: count of 1 city row placed in Puducherry — Puducherry (p.9) |
| Punjab | 21 January 2021 | 7 | AQI bulletin p.1–9: count of 7 city rows placed in Punjab — Amritsar (p.1), Jalandhar (p.5), Khanna (p.6), Ludhiana (p.7), Mandi Gobindgarh (p.7), Patiala (p.9), Rupnagar (p.9) |
| Rajasthan | 21 January 2021 | 8 | AQI bulletin p.1–11: 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.11) |
| Tamil Nadu | 21 January 2021 | 2 | AQI bulletin p.3–10: count of 2 city rows placed in Tamil Nadu — Chennai (p.3), Thoothukudi (p.10) |
| Telangana | 21 January 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 21 January 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 21 January 2021 | 12 | AQI bulletin p.1–11: count of 12 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.2), Bulandshahr (p.2), Ghaziabad (p.4), Greater Noida (p.4), Kanpur (p.6), Lucknow (p.7), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.8), Noida (p.8), Varanasi (p.11) |
| West Bengal | 21 January 2021 | 6 | AQI bulletin p.1–10: count of 6 city rows placed in West Bengal — Asansol (p.1), Durgapur (p.3), Haldia (p.4), Howrah (p.5), Kolkata (p.6), Siliguri (p.10) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 21 January 2021 | 37% | AQI bulletin p.1–11, Index Value column: 48 of all 129 city rows at 201 or more — Agartala 216 (p.1), Ankleshwar 297 (p.1), Asansol 240 (p.1), Baghpat 285 (p.2), Bahadurgarh 218 (p.2), Bhiwadi 247 (p.2), Bhopal 212 (p.2), Bulandshahr 308 (p.2), Delhi 296 (p.3), Durgapur 308 (p.3), Faridabad 208 (p.3), Fatehabad 206 (p.4), Gaya 275 (p.4), Ghaziabad 326 (p.4), Greater Noida 298 (p.4), Gurugram 234 (p.4), Gwalior 229 (p.4), Hajipur 212 (p.4), Hisar 236 (p.4), Howrah 303 (p.5) … and 28 more |
| Andhra Pradesh | 21 January 2021 | 25% | AQI bulletin p.1–11, Index Value column: 1 of 4 city rows placed in Andhra Pradesh at 201 or more — Visakhapatnam 203 (p.11) |
| Assam | 21 January 2021 | 0% | AQI bulletin p.4, Index Value column: none of 1 city row placed in Assam at 201 or more (highest 76) |
| Bihar | 21 January 2021 | 100% | AQI bulletin p.4–9, Index Value column: 4 of 4 city rows placed in Bihar at 201 or more — Gaya 275 (p.4), Hajipur 212 (p.4), Muzaffarpur 366 (p.8), Patna 279 (p.9) |
| Chandigarh | 21 January 2021 | 0% | AQI bulletin p.2, Index Value column: none of 1 city row placed in Chandigarh at 201 or more (highest 144) |
| Delhi | 21 January 2021 | 100% | AQI bulletin p.3, Index Value column: 1 of 1 city row placed in Delhi at 201 or more — Delhi 296 (p.3) |
| Gujarat | 21 January 2021 | 50% | AQI bulletin p.1–11, Index Value column: 3 of 6 city rows placed in Gujarat at 201 or more — Ankleshwar 297 (p.1), Vapi 202 (p.11), Vatva 284 (p.11) |
| Haryana | 21 January 2021 | 45% | AQI bulletin p.1–11, Index Value column: 10 of 22 city rows placed in Haryana at 201 or more — Bahadurgarh 218 (p.2), Faridabad 208 (p.3), Fatehabad 206 (p.4), Gurugram 234 (p.4), Hisar 236 (p.4), Jind 258 (p.5), Kurukshetra 209 (p.7), Panchkula 217 (p.9), Rohtak 323 (p.9), Yamunanagar 273 (p.11) |
| Jharkhand | 21 January 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Jharkhand at 201 or more (highest 153) |
| Karnataka | 21 January 2021 | 6% | AQI bulletin p.2–11, Index Value column: 1 of 17 city rows placed in Karnataka at 201 or more — Raichur 212 (p.9) |
| Kerala | 21 January 2021 | 0% | AQI bulletin p.3–10, Index Value column: none of 5 city rows placed in Kerala at 201 or more (highest 185) |
| Madhya Pradesh | 21 January 2021 | 33% | AQI bulletin p.2–11, Index Value column: 5 of 15 city rows placed in Madhya Pradesh at 201 or more — Bhopal 212 (p.2), Gwalior 229 (p.4), Jabalpur 205 (p.5), Katni 252 (p.6), Ujjain 202 (p.11) |
| Maharashtra | 21 January 2021 | 33% | AQI bulletin p.1–10, Index Value column: 3 of 9 city rows placed in Maharashtra at 201 or more — Kalyan 238 (p.5), Navi Mumbai 254 (p.8), Thane 267 (p.10) |
| Meghalaya | 21 January 2021 | 0% | AQI bulletin p.10, Index Value column: none of 1 city row placed in Meghalaya at 201 or more (highest 66) |
| Mizoram | 21 January 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Mizoram at 201 or more (highest 193) |
| Nagaland | 21 January 2021 | 100% | AQI bulletin p.6, Index Value column: 1 of 1 city row placed in Nagaland at 201 or more — Kohima 225 (p.6) |
| Odisha | 21 January 2021 | 50% | AQI bulletin p.2–10, Index Value column: 1 of 2 city rows placed in Odisha at 201 or more — Talcher 241 (p.10) |
| Puducherry | 21 January 2021 | 0% | AQI bulletin p.9, Index Value column: none of 1 city row placed in Puducherry at 201 or more (highest 81) |
| Punjab | 21 January 2021 | 0% | AQI bulletin p.1–9, Index Value column: none of 7 city rows placed in Punjab at 201 or more (highest 166) |
| Rajasthan | 21 January 2021 | 13% | AQI bulletin p.1–11, Index Value column: 1 of 8 city rows placed in Rajasthan at 201 or more — Bhiwadi 247 (p.2) |
| Tamil Nadu | 21 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 104) |
| Telangana | 21 January 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Telangana at 201 or more (highest 114) |
| Tripura | 21 January 2021 | 100% | AQI bulletin p.1, Index Value column: 1 of 1 city row placed in Tripura at 201 or more — Agartala 216 (p.1) |
| Uttar Pradesh | 21 January 2021 | 92% | AQI bulletin p.1–11, Index Value column: 11 of 12 city rows placed in Uttar Pradesh at 201 or more — Baghpat 285 (p.2), Bulandshahr 308 (p.2), Ghaziabad 326 (p.4), Greater Noida 298 (p.4), Kanpur 288 (p.6), Lucknow 257 (p.7), Meerut 298 (p.7), Moradabad 286 (p.7), Muzaffarnagar 220 (p.8), Noida 306 (p.8), Varanasi 317 (p.11) |
| West Bengal | 21 January 2021 | 83% | AQI bulletin p.1–10, Index Value column: 5 of 6 city rows placed in West Bengal at 201 or more — Asansol 240 (p.1), Durgapur 308 (p.3), Howrah 303 (p.5), Kolkata 295 (p.6), Siliguri 272 (p.10) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 21 January 2021 | 366 | AQI bulletin p.1–11, Index Value column: highest of all 129 city rows — Muzaffarpur, S.No 87 (p.8), Very Poor |
| Andhra Pradesh | 21 January 2021 | 203 | AQI bulletin p.1–11, Index Value column: highest of 4 city rows placed in Andhra Pradesh — Visakhapatnam, S.No 127 (p.11), Poor |
| Assam | 21 January 2021 | 76 | AQI bulletin p.4, Index Value column: highest of 1 city row placed in Assam — Guwahati, S.No 44 (p.4), Satisfactory |
| Bihar | 21 January 2021 | 366 | AQI bulletin p.4–9, Index Value column: highest of 4 city rows placed in Bihar — Muzaffarpur, S.No 87 (p.8), Very Poor |
| Chandigarh | 21 January 2021 | 144 | AQI bulletin p.2, Index Value column: highest of 1 city row placed in Chandigarh — Chandigarh, S.No 24 (p.2), Moderate |
| Delhi | 21 January 2021 | 296 | AQI bulletin p.3, Index Value column: highest of 1 city row placed in Delhi — Delhi, S.No 31 (p.3), Poor |
| Gujarat | 21 January 2021 | 297 | AQI bulletin p.1–11, Index Value column: highest of 6 city rows placed in Gujarat — Ankleshwar, S.No 10 (p.1), Poor |
| Haryana | 21 January 2021 | 323 | AQI bulletin p.1–11, Index Value column: highest of 22 city rows placed in Haryana — Rohtak, S.No 107 (p.9), Very Poor |
| Jharkhand | 21 January 2021 | 153 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Jharkhand — Jorapokhar, S.No 58 (p.5), Moderate |
| Karnataka | 21 January 2021 | 212 | AQI bulletin p.2–11, Index Value column: highest of 17 city rows placed in Karnataka — Raichur, S.No 103 (p.9), Poor |
| Kerala | 21 January 2021 | 185 | AQI bulletin p.3–10, Index Value column: highest of 5 city rows placed in Kerala — Kollam, S.No 69 (p.6), Moderate |
| Madhya Pradesh | 21 January 2021 | 252 | AQI bulletin p.2–11, Index Value column: highest of 15 city rows placed in Madhya Pradesh — Katni, S.No 64 (p.6), Poor |
| Maharashtra | 21 January 2021 | 267 | AQI bulletin p.1–10, Index Value column: highest of 9 city rows placed in Maharashtra — Thane, S.No 117 (p.10), Poor |
| Meghalaya | 21 January 2021 | 66 | AQI bulletin p.10, Index Value column: highest of 1 city row placed in Meghalaya — Shillong, S.No 111 (p.10), Satisfactory |
| Mizoram | 21 January 2021 | 193 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Mizoram — Aizawl, S.No 4 (p.1), Moderate |
| Nagaland | 21 January 2021 | 225 | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Nagaland — Kohima, S.No 66 (p.6), Poor |
| Odisha | 21 January 2021 | 241 | AQI bulletin p.2–10, Index Value column: highest of 2 city rows placed in Odisha — Talcher, S.No 116 (p.10), Poor |
| Puducherry | 21 January 2021 | 81 | AQI bulletin p.9, Index Value column: highest of 1 city row placed in Puducherry — Puducherry, S.No 101 (p.9), Satisfactory |
| Punjab | 21 January 2021 | 166 | AQI bulletin p.1–9, Index Value column: highest of 7 city rows placed in Punjab — Mandi Gobindgarh, S.No 77 (p.7), Moderate |
| Rajasthan | 21 January 2021 | 247 | AQI bulletin p.1–11, Index Value column: highest of 8 city rows placed in Rajasthan — Bhiwadi, S.No 18 (p.2), Poor |
| Tamil Nadu | 21 January 2021 | 104 | AQI bulletin p.3–10, Index Value column: highest of 2 city rows placed in Tamil Nadu — Chennai, S.No 27 (p.3), Moderate |
| Telangana | 21 January 2021 | 114 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 51 (p.5), Moderate |
| Tripura | 21 January 2021 | 216 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Tripura — Agartala, S.No 1 (p.1), Poor |
| Uttar Pradesh | 21 January 2021 | 326 | AQI bulletin p.1–11, Index Value column: highest of 12 city rows placed in Uttar Pradesh — Ghaziabad, S.No 41 (p.4), Very Poor |
| West Bengal | 21 January 2021 | 308 | AQI bulletin p.1–10, Index Value column: highest of 6 city rows placed in West Bengal — Durgapur, S.No 34 (p.3), Very Poor |