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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, 20:59 IST. The copy below is byte-for-byte what the publisher served.
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 12 October 2021 | 111 | AQI bulletin p.1–12, Index Value column: mean of all 138 city rows — every row in the table |
| Andhra Pradesh | 12 October 2021 | 110 | AQI bulletin p.1–12, Index Value column: mean of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.10), Tirupati (p.11), Visakhapatnam (p.12) |
| Arunachal Pradesh | 12 October 2021 | 57 | AQI bulletin p.8, Index Value column: mean of 1 city row placed in Arunachal Pradesh — Naharlagun (p.8) |
| Assam | 12 October 2021 | 100 | AQI bulletin p.4, Index Value column: mean of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 12 October 2021 | 145 | AQI bulletin p.4–9, Index Value column: mean of 4 city rows placed in Bihar — Gaya (p.4), Hajipur (p.5), Muzaffarpur (p.8), Patna (p.9) |
Central Pollution Control Board, Ministry of Environment, Forest and Climate Change. CPCB National Air Quality Index bulletin, 12 October 2021 (138 cities) (published 12 Oct 2021). Archived by the India Health Observatory on 3 Oct 2026, SHA-256 4e94e0358331c29d109be52dc2c761a7d54f0391085603efc10783638f7abd5d. https://indiahealthobservatory.com/sources/cpcb/releases/1856
| Chandigarh | 12 October 2021 | 114 | AQI bulletin p.3, Index Value column: mean of 1 city row placed in Chandigarh — Chandigarh (p.3) |
| Chhattisgarh | 12 October 2021 | 93 | AQI bulletin p.2, Index Value column: mean of 1 city row placed in Chhattisgarh — Bilaspur (p.2) |
| Delhi | 12 October 2021 | 179 | AQI bulletin p.3, Index Value column: mean of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 12 October 2021 | 133 | AQI bulletin p.1–12, 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.12) |
| Haryana | 12 October 2021 | 158 | AQI bulletin p.1–12, 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.4), Fatehabad (p.4), Gurugram (p.4), Hisar (p.5), Jind (p.6), Karnal (p.6), Kurukshetra (p.7), Mandikhera (p.7), Narnaul (p.8), Palwal (p.9), Panchkula (p.9), Panipat (p.9), Rohtak (p.10), Sirsa (p.11), Sonipat (p.11), Yamunanagar (p.12) |
| Jammu and Kashmir | 12 October 2021 | 18 | AQI bulletin p.11, Index Value column: mean of 1 city row placed in Jammu and Kashmir — Srinagar (p.11) |
| Karnataka | 12 October 2021 | 54 | AQI bulletin p.1–12, Index Value column: mean of 20 city rows placed in Karnataka — Bagalkot (p.1), Bengaluru (p.2), Bidar (p.2), Chamarajanagar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Davanagere (p.3), Hassan (p.5), Hubballi (p.5), Kalaburgi (p.6), Kolar (p.6), Koppal (p.7), Manglore (p.8), Medikeri (p.8), Mysuru (p.8), Raichur (p.10), Ramanagara (p.10), Shivamogga (p.10), Vijayapura (p.12), Yadgir (p.12) |
| Kerala | 12 October 2021 | 49 | AQI bulletin p.6–11, Index Value column: mean of 6 city rows placed in Kerala — Kannur (p.6), Kochi (p.6), Kollam (p.7), Kozhikode (p.7), Thiruvananthapuram (p.11), Thrissur (p.11) |
| Madhya Pradesh | 12 October 2021 | 109 | 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.10), Sagar (p.10), Satna (p.10), Singrauli (p.10), Ujjain (p.11) |
| Maharashtra | 12 October 2021 | 74 | AQI bulletin p.3–9, Index Value column: mean of 6 city rows placed in Maharashtra — Chandrapur (p.3), Kalyan (p.6), Mumbai (p.8), Nashik (p.8), Navi Mumbai (p.9), Pune (p.9) |
| Meghalaya | 12 October 2021 | 20 | AQI bulletin p.10, Index Value column: mean of 1 city row placed in Meghalaya — Shillong (p.10) |
| Mizoram | 12 October 2021 | 30 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 12 October 2021 | 55 | AQI bulletin p.6, Index Value column: mean of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 12 October 2021 | 89 | AQI bulletin p.2–11, Index Value column: mean of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.11) |
| Puducherry | 12 October 2021 | 52 | AQI bulletin p.9, Index Value column: mean of 1 city row placed in Puducherry — Puducherry (p.9) |
| Punjab | 12 October 2021 | 119 | AQI bulletin p.1–10, 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.10) |
| Rajasthan | 12 October 2021 | 112 | 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.6), Kota (p.7), Pali (p.9), Udaipur (p.11) |
| Tamil Nadu | 12 October 2021 | 53 | AQI bulletin p.3–11, Index Value column: mean of 3 city rows placed in Tamil Nadu — Chennai (p.3), Gummidipoondi (p.4), Thoothukudi (p.11) |
| Telangana | 12 October 2021 | 123 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 12 October 2021 | 89 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 12 October 2021 | 163 | AQI bulletin p.1–12, Index Value column: mean of 17 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.2), Bulandshahr (p.2), Firozabad (p.4), Ghaziabad (p.4), Gorakhpur (p.4), Greater Noida (p.4), Hapur (p.5), Kanpur (p.6), Lucknow (p.7), Meerut (p.8), Moradabad (p.8), Muzaffarnagar (p.8), Noida (p.9), Prayagraj (p.9), Varanasi (p.11), Vrindavan (p.12) |
| West Bengal | 12 October 2021 | 139 | 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.5), Howrah (p.5), Kolkata (p.7), Siliguri (p.10) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 12 October 2021 | 138 | AQI bulletin p.1–12: count of all 138 city rows — every row in the table |
| Andhra Pradesh | 12 October 2021 | 4 | AQI bulletin p.1–12: count of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.10), Tirupati (p.11), Visakhapatnam (p.12) |
| Arunachal Pradesh | 12 October 2021 | 1 | AQI bulletin p.8: count of 1 city row placed in Arunachal Pradesh — Naharlagun (p.8) |
| Assam | 12 October 2021 | 1 | AQI bulletin p.4: count of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 12 October 2021 | 4 | AQI bulletin p.4–9: count of 4 city rows placed in Bihar — Gaya (p.4), Hajipur (p.5), Muzaffarpur (p.8), Patna (p.9) |
| Chandigarh | 12 October 2021 | 1 | AQI bulletin p.3: count of 1 city row placed in Chandigarh — Chandigarh (p.3) |
| Chhattisgarh | 12 October 2021 | 1 | AQI bulletin p.2: count of 1 city row placed in Chhattisgarh — Bilaspur (p.2) |
| Delhi | 12 October 2021 | 1 | AQI bulletin p.3: count of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 12 October 2021 | 6 | AQI bulletin p.1–12: 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.12) |
| Haryana | 12 October 2021 | 22 | AQI bulletin p.1–12: 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.4), Fatehabad (p.4), Gurugram (p.4), Hisar (p.5), Jind (p.6), Karnal (p.6), Kurukshetra (p.7), Mandikhera (p.7), Narnaul (p.8), Palwal (p.9), Panchkula (p.9), Panipat (p.9), Rohtak (p.10), Sirsa (p.11), Sonipat (p.11), Yamunanagar (p.12) |
| Jammu and Kashmir | 12 October 2021 | 1 | AQI bulletin p.11: count of 1 city row placed in Jammu and Kashmir — Srinagar (p.11) |
| Karnataka | 12 October 2021 | 20 | AQI bulletin p.1–12: count of 20 city rows placed in Karnataka — Bagalkot (p.1), Bengaluru (p.2), Bidar (p.2), Chamarajanagar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Davanagere (p.3), Hassan (p.5), Hubballi (p.5), Kalaburgi (p.6), Kolar (p.6), Koppal (p.7), Manglore (p.8), Medikeri (p.8), Mysuru (p.8), Raichur (p.10), Ramanagara (p.10), Shivamogga (p.10), Vijayapura (p.12), Yadgir (p.12) |
| Kerala | 12 October 2021 | 6 | AQI bulletin p.6–11: count of 6 city rows placed in Kerala — Kannur (p.6), Kochi (p.6), Kollam (p.7), Kozhikode (p.7), Thiruvananthapuram (p.11), Thrissur (p.11) |
| Madhya Pradesh | 12 October 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.10), Sagar (p.10), Satna (p.10), Singrauli (p.10), Ujjain (p.11) |
| Maharashtra | 12 October 2021 | 6 | AQI bulletin p.3–9: count of 6 city rows placed in Maharashtra — Chandrapur (p.3), Kalyan (p.6), Mumbai (p.8), Nashik (p.8), Navi Mumbai (p.9), Pune (p.9) |
| Meghalaya | 12 October 2021 | 1 | AQI bulletin p.10: count of 1 city row placed in Meghalaya — Shillong (p.10) |
| Mizoram | 12 October 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 12 October 2021 | 1 | AQI bulletin p.6: count of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 12 October 2021 | 2 | AQI bulletin p.2–11: count of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.11) |
| Puducherry | 12 October 2021 | 1 | AQI bulletin p.9: count of 1 city row placed in Puducherry — Puducherry (p.9) |
| Punjab | 12 October 2021 | 7 | AQI bulletin p.1–10: 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.10) |
| Rajasthan | 12 October 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.6), Kota (p.7), Pali (p.9), Udaipur (p.11) |
| Tamil Nadu | 12 October 2021 | 3 | AQI bulletin p.3–11: count of 3 city rows placed in Tamil Nadu — Chennai (p.3), Gummidipoondi (p.4), Thoothukudi (p.11) |
| Telangana | 12 October 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 12 October 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 12 October 2021 | 17 | AQI bulletin p.1–12: count of 17 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.2), Bulandshahr (p.2), Firozabad (p.4), Ghaziabad (p.4), Gorakhpur (p.4), Greater Noida (p.4), Hapur (p.5), Kanpur (p.6), Lucknow (p.7), Meerut (p.8), Moradabad (p.8), Muzaffarnagar (p.8), Noida (p.9), Prayagraj (p.9), Varanasi (p.11), Vrindavan (p.12) |
| West Bengal | 12 October 2021 | 6 | AQI bulletin p.1–10: count of 6 city rows placed in West Bengal — Asansol (p.1), Durgapur (p.3), Haldia (p.5), Howrah (p.5), Kolkata (p.7), Siliguri (p.10) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 12 October 2021 | 7% | AQI bulletin p.1–12, Index Value column: 10 of all 138 city rows at 201 or more — Bahadurgarh 213 (p.2), Ballabgarh 256 (p.2), Bhiwadi 208 (p.2), Faridabad 224 (p.4), Greater Noida 227 (p.4), Ludhiana 205 (p.7), Singrauli 214 (p.10), Sonipat 221 (p.11), Vatva 252 (p.12), Yamunanagar 213 (p.12) |
| Andhra Pradesh | 12 October 2021 | 0% | AQI bulletin p.1–12, Index Value column: none of 4 city rows placed in Andhra Pradesh at 201 or more (highest 177) |
| Arunachal Pradesh | 12 October 2021 | 0% | AQI bulletin p.8, Index Value column: none of 1 city row placed in Arunachal Pradesh at 201 or more (highest 57) |
| Assam | 12 October 2021 | 0% | AQI bulletin p.4, Index Value column: none of 1 city row placed in Assam at 201 or more (highest 100) |
| Bihar | 12 October 2021 | 0% | AQI bulletin p.4–9, Index Value column: none of 4 city rows placed in Bihar at 201 or more (highest 165) |
| Chandigarh | 12 October 2021 | 0% | AQI bulletin p.3, Index Value column: none of 1 city row placed in Chandigarh at 201 or more (highest 114) |
| Chhattisgarh | 12 October 2021 | 0% | AQI bulletin p.2, Index Value column: none of 1 city row placed in Chhattisgarh at 201 or more (highest 93) |
| Delhi | 12 October 2021 | 0% | AQI bulletin p.3, Index Value column: none of 1 city row placed in Delhi at 201 or more (highest 179) |
| Gujarat | 12 October 2021 | 17% | AQI bulletin p.1–12, Index Value column: 1 of 6 city rows placed in Gujarat at 201 or more — Vatva 252 (p.12) |
| Haryana | 12 October 2021 | 23% | AQI bulletin p.1–12, Index Value column: 5 of 22 city rows placed in Haryana at 201 or more — Bahadurgarh 213 (p.2), Ballabgarh 256 (p.2), Faridabad 224 (p.4), Sonipat 221 (p.11), Yamunanagar 213 (p.12) |
| Jammu and Kashmir | 12 October 2021 | 0% | AQI bulletin p.11, Index Value column: none of 1 city row placed in Jammu and Kashmir at 201 or more (highest 18) |
| Karnataka | 12 October 2021 | 0% | AQI bulletin p.1–12, Index Value column: none of 20 city rows placed in Karnataka at 201 or more (highest 118) |
| Kerala | 12 October 2021 | 0% | AQI bulletin p.6–11, Index Value column: none of 6 city rows placed in Kerala at 201 or more (highest 91) |
| Madhya Pradesh | 12 October 2021 | 7% | AQI bulletin p.2–11, Index Value column: 1 of 15 city rows placed in Madhya Pradesh at 201 or more — Singrauli 214 (p.10) |
| Maharashtra | 12 October 2021 | 0% | AQI bulletin p.3–9, Index Value column: none of 6 city rows placed in Maharashtra at 201 or more (highest 111) |
| Meghalaya | 12 October 2021 | 0% | AQI bulletin p.10, Index Value column: none of 1 city row placed in Meghalaya at 201 or more (highest 20) |
| Mizoram | 12 October 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Mizoram at 201 or more (highest 30) |
| Nagaland | 12 October 2021 | 0% | AQI bulletin p.6, Index Value column: none of 1 city row placed in Nagaland at 201 or more (highest 55) |
| Odisha | 12 October 2021 | 0% | AQI bulletin p.2–11, Index Value column: none of 2 city rows placed in Odisha at 201 or more (highest 91) |
| Puducherry | 12 October 2021 | 0% | AQI bulletin p.9, Index Value column: none of 1 city row placed in Puducherry at 201 or more (highest 52) |
| Punjab | 12 October 2021 | 14% | AQI bulletin p.1–10, Index Value column: 1 of 7 city rows placed in Punjab at 201 or more — Ludhiana 205 (p.7) |
| Rajasthan | 12 October 2021 | 13% | AQI bulletin p.1–11, Index Value column: 1 of 8 city rows placed in Rajasthan at 201 or more — Bhiwadi 208 (p.2) |
| Tamil Nadu | 12 October 2021 | 0% | AQI bulletin p.3–11, Index Value column: none of 3 city rows placed in Tamil Nadu at 201 or more (highest 69) |
| Telangana | 12 October 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Telangana at 201 or more (highest 123) |
| Tripura | 12 October 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Tripura at 201 or more (highest 89) |
| Uttar Pradesh | 12 October 2021 | 6% | AQI bulletin p.1–12, Index Value column: 1 of 17 city rows placed in Uttar Pradesh at 201 or more — Greater Noida 227 (p.4) |
| West Bengal | 12 October 2021 | 0% | AQI bulletin p.1–10, Index Value column: none of 6 city rows placed in West Bengal at 201 or more (highest 172) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 12 October 2021 | 256 | AQI bulletin p.1–12, Index Value column: highest of all 138 city rows — Ballabgarh, S.No 15 (p.2), Poor |
| Andhra Pradesh | 12 October 2021 | 177 | AQI bulletin p.1–12, Index Value column: highest of 4 city rows placed in Andhra Pradesh — Visakhapatnam, S.No 135 (p.12), Moderate |
| Arunachal Pradesh | 12 October 2021 | 57 | AQI bulletin p.8, Index Value column: highest of 1 city row placed in Arunachal Pradesh — Naharlagun, S.No 93 (p.8), Satisfactory |
| Assam | 12 October 2021 | 100 | AQI bulletin p.4, Index Value column: highest of 1 city row placed in Assam — Guwahati, S.No 47 (p.4), Satisfactory |
| Bihar | 12 October 2021 | 165 | AQI bulletin p.4–9, Index Value column: highest of 4 city rows placed in Bihar — Patna, S.No 104 (p.9), Moderate |
| Chandigarh | 12 October 2021 | 114 | AQI bulletin p.3, Index Value column: highest of 1 city row placed in Chandigarh — Chandigarh, S.No 25 (p.3), Moderate |
| Chhattisgarh | 12 October 2021 | 93 | AQI bulletin p.2, Index Value column: highest of 1 city row placed in Chhattisgarh — Bilaspur, S.No 21 (p.2), Satisfactory |
| Delhi | 12 October 2021 | 179 | AQI bulletin p.3, Index Value column: highest of 1 city row placed in Delhi — Delhi, S.No 33 (p.3), Moderate |
| Gujarat | 12 October 2021 | 252 | AQI bulletin p.1–12, Index Value column: highest of 6 city rows placed in Gujarat — Vatva, S.No 133 (p.12), Poor |
| Haryana | 12 October 2021 | 256 | AQI bulletin p.1–12, Index Value column: highest of 22 city rows placed in Haryana — Ballabgarh, S.No 15 (p.2), Poor |
| Jammu and Kashmir | 12 October 2021 | 18 | AQI bulletin p.11, Index Value column: highest of 1 city row placed in Jammu and Kashmir — Srinagar, S.No 123 (p.11), Good |
| Karnataka | 12 October 2021 | 118 | AQI bulletin p.1–12, Index Value column: highest of 20 city rows placed in Karnataka — Kalaburgi, S.No 63 (p.6), Moderate |
| Kerala | 12 October 2021 | 91 | AQI bulletin p.6–11, Index Value column: highest of 6 city rows placed in Kerala — Kollam, S.No 74 (p.7), Satisfactory |
| Madhya Pradesh | 12 October 2021 | 214 | AQI bulletin p.2–11, Index Value column: highest of 15 city rows placed in Madhya Pradesh — Singrauli, S.No 120 (p.10), Poor |
| Maharashtra | 12 October 2021 | 111 | AQI bulletin p.3–9, Index Value column: highest of 6 city rows placed in Maharashtra — Chandrapur, S.No 26 (p.3), Moderate |
| Meghalaya | 12 October 2021 | 20 | AQI bulletin p.10, Index Value column: highest of 1 city row placed in Meghalaya — Shillong, S.No 117 (p.10), Good |
| Mizoram | 12 October 2021 | 30 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Mizoram — Aizawl, S.No 4 (p.1), Good |
| Nagaland | 12 October 2021 | 55 | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Nagaland — Kohima, S.No 71 (p.6), Satisfactory |
| Odisha | 12 October 2021 | 91 | AQI bulletin p.2–11, Index Value column: highest of 2 city rows placed in Odisha — Talcher, S.No 124 (p.11), Satisfactory |
| Puducherry | 12 October 2021 | 52 | AQI bulletin p.9, Index Value column: highest of 1 city row placed in Puducherry — Puducherry, S.No 107 (p.9), Satisfactory |
| Punjab | 12 October 2021 | 205 | AQI bulletin p.1–10, Index Value column: highest of 7 city rows placed in Punjab — Ludhiana, S.No 80 (p.7), Poor |
| Rajasthan | 12 October 2021 | 208 | AQI bulletin p.1–11, Index Value column: highest of 8 city rows placed in Rajasthan — Bhiwadi, S.No 17 (p.2), Poor |
| Tamil Nadu | 12 October 2021 | 69 | AQI bulletin p.3–11, Index Value column: highest of 3 city rows placed in Tamil Nadu — Gummidipoondi, S.No 45 (p.4), Satisfactory |
| Telangana | 12 October 2021 | 123 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 56 (p.5), Moderate |
| Tripura | 12 October 2021 | 89 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Tripura — Agartala, S.No 1 (p.1), Satisfactory |
| Uttar Pradesh | 12 October 2021 | 227 | AQI bulletin p.1–12, Index Value column: highest of 17 city rows placed in Uttar Pradesh — Greater Noida, S.No 44 (p.4), Poor |
| West Bengal | 12 October 2021 | 172 | AQI bulletin p.1–10, Index Value column: highest of 6 city rows placed in West Bengal — Kolkata, S.No 73 (p.7), Moderate |