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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 | 4 January 2021 | 149 | AQI bulletin p.1–11, Index Value column: mean of all 122 city rows — every row in the table |
| Andhra Pradesh | 4 January 2021 | 157 | AQI bulletin p.1–10, Index Value column: mean of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.8), Tirupati (p.10), Visakhapatnam (p.10) |
| Assam | 4 January 2021 | 256 | AQI bulletin p.4, Index Value column: mean of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 4 January 2021 | 293 | AQI bulletin p.4–8, Index Value column: mean of 3 city rows placed in Bihar — Gaya (p.4), Muzaffarpur (p.7), Patna (p.8) |
| Chandigarh | 4 January 2021 | 91 | 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, 4 January 2021 (122 cities) (published 4 Jan 2021). Archived by the India Health Observatory on 3 Oct 2026, SHA-256 15455301749b29018e062f95e7fca5c4f78b5330684ca3108aa4aa149a0d70d1. https://indiahealthobservatory.com/sources/cpcb/releases/2136
| Delhi | 4 January 2021 | 151 | AQI bulletin p.3, Index Value column: mean of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 4 January 2021 | 220 | AQI bulletin p.1–10, 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.10), Vatva (p.10) |
| Haryana | 4 January 2021 | 107 | AQI bulletin p.1–11, Index Value column: mean of 20 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Bhiwani (p.2), Dharuhera (p.3), Faridabad (p.3), Fatehabad (p.4), Gurugram (p.4), Hisar (p.4), Jind (p.5), Kaithal (p.5), Karnal (p.6), Kurukshetra (p.6), Manesar (p.7), Narnaul (p.8), Panchkula (p.8), Rohtak (p.9), Sirsa (p.9), Sonipat (p.9), Yamunanagar (p.11) |
| Karnataka | 4 January 2021 | 67 | AQI bulletin p.1–11, Index Value column: mean of 15 city rows placed in Karnataka — Bagalkot (p.1), Bengaluru (p.2), Bidar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Gadag (p.4), Hubballi (p.5), Kalaburgi (p.5), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.7), Shivamogga (p.9), Vijayapura (p.10), Yadgir (p.11) |
| Kerala | 4 January 2021 | 64 | AQI bulletin p.3–10, Index Value column: mean of 7 city rows placed in Kerala — Eloor (p.3), Ernakulam (p.3), Kannur (p.6), Kochi (p.6), Kozhikode (p.6), Thiruvananthapuram (p.10), Thrissur (p.10) |
| Madhya Pradesh | 4 January 2021 | 232 | 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 | 4 January 2021 | 209 | AQI bulletin p.2–10, Index Value column: mean of 8 city rows placed in Maharashtra — Chandrapur (p.2), Kalyan (p.5), Mumbai (p.7), Nashik (p.8), Navi Mumbai (p.8), Pune (p.8), Solapur (p.9), Thane (p.10) |
| Meghalaya | 4 January 2021 | 25 | AQI bulletin p.9, Index Value column: mean of 1 city row placed in Meghalaya — Shillong (p.9) |
| Mizoram | 4 January 2021 | 14 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 4 January 2021 | 54 | AQI bulletin p.6, Index Value column: mean of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 4 January 2021 | 173 | AQI bulletin p.2–9, Index Value column: mean of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.9) |
| Punjab | 4 January 2021 | 89 | AQI bulletin p.1–8, Index Value column: mean of 6 city rows placed in Punjab — Amritsar (p.1), Bathinda (p.2), Jalandhar (p.5), Khanna (p.6), Ludhiana (p.7), Patiala (p.8) |
| Rajasthan | 4 January 2021 | 169 | 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 | 4 January 2021 | 59 | AQI bulletin p.3–10, Index Value column: mean of 3 city rows placed in Tamil Nadu — Chennai (p.3), Coimbatore (p.3), Thoothukudi (p.10) |
| Telangana | 4 January 2021 | 142 | AQI bulletin p.5, Index Value column: mean of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 4 January 2021 | 170 | AQI bulletin p.1, Index Value column: mean of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 4 January 2021 | 162 | AQI bulletin p.1–10, Index Value column: mean of 12 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.2), Ghaziabad (p.4), Greater Noida (p.4), Hapur (p.4), Kanpur (p.6), Lucknow (p.7), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.7), Noida (p.8), Varanasi (p.10) |
| West Bengal | 4 January 2021 | 270 | 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.5), Kolkata (p.6), Siliguri (p.9) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 4 January 2021 | 122 | AQI bulletin p.1–11: count of all 122 city rows — every row in the table |
| Andhra Pradesh | 4 January 2021 | 4 | AQI bulletin p.1–10: count of 4 city rows placed in Andhra Pradesh — Amaravati (p.1), Rajamahendravaram (p.8), Tirupati (p.10), Visakhapatnam (p.10) |
| Assam | 4 January 2021 | 1 | AQI bulletin p.4: count of 1 city row placed in Assam — Guwahati (p.4) |
| Bihar | 4 January 2021 | 3 | AQI bulletin p.4–8: count of 3 city rows placed in Bihar — Gaya (p.4), Muzaffarpur (p.7), Patna (p.8) |
| Chandigarh | 4 January 2021 | 1 | AQI bulletin p.2: count of 1 city row placed in Chandigarh — Chandigarh (p.2) |
| Delhi | 4 January 2021 | 1 | AQI bulletin p.3: count of 1 city row placed in Delhi — Delhi (p.3) |
| Gujarat | 4 January 2021 | 6 | AQI bulletin p.1–10: count of 6 city rows placed in Gujarat — Ahmedabad (p.1), Ankleshwar (p.1), Gandhinagar (p.4), Nandesari (p.8), Vapi (p.10), Vatva (p.10) |
| Haryana | 4 January 2021 | 20 | AQI bulletin p.1–11: count of 20 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Bhiwani (p.2), Dharuhera (p.3), Faridabad (p.3), Fatehabad (p.4), Gurugram (p.4), Hisar (p.4), Jind (p.5), Kaithal (p.5), Karnal (p.6), Kurukshetra (p.6), Manesar (p.7), Narnaul (p.8), Panchkula (p.8), Rohtak (p.9), Sirsa (p.9), Sonipat (p.9), Yamunanagar (p.11) |
| Karnataka | 4 January 2021 | 15 | AQI bulletin p.1–11: count of 15 city rows placed in Karnataka — Bagalkot (p.1), Bengaluru (p.2), Bidar (p.2), Chikkaballapur (p.3), Chikkamagaluru (p.3), Gadag (p.4), Hubballi (p.5), Kalaburgi (p.5), Koppal (p.6), Manglore (p.7), Medikeri (p.7), Mysuru (p.7), Shivamogga (p.9), Vijayapura (p.10), Yadgir (p.11) |
| Kerala | 4 January 2021 | 7 | AQI bulletin p.3–10: count of 7 city rows placed in Kerala — Eloor (p.3), Ernakulam (p.3), Kannur (p.6), Kochi (p.6), Kozhikode (p.6), Thiruvananthapuram (p.10), Thrissur (p.10) |
| Madhya Pradesh | 4 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 | 4 January 2021 | 8 | AQI bulletin p.2–10: count of 8 city rows placed in Maharashtra — Chandrapur (p.2), Kalyan (p.5), Mumbai (p.7), Nashik (p.8), Navi Mumbai (p.8), Pune (p.8), Solapur (p.9), Thane (p.10) |
| Meghalaya | 4 January 2021 | 1 | AQI bulletin p.9: count of 1 city row placed in Meghalaya — Shillong (p.9) |
| Mizoram | 4 January 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Mizoram — Aizawl (p.1) |
| Nagaland | 4 January 2021 | 1 | AQI bulletin p.6: count of 1 city row placed in Nagaland — Kohima (p.6) |
| Odisha | 4 January 2021 | 2 | AQI bulletin p.2–9: count of 2 city rows placed in Odisha — Brajrajnagar (p.2), Talcher (p.9) |
| Punjab | 4 January 2021 | 6 | AQI bulletin p.1–8: count of 6 city rows placed in Punjab — Amritsar (p.1), Bathinda (p.2), Jalandhar (p.5), Khanna (p.6), Ludhiana (p.7), Patiala (p.8) |
| Rajasthan | 4 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 | 4 January 2021 | 3 | AQI bulletin p.3–10: count of 3 city rows placed in Tamil Nadu — Chennai (p.3), Coimbatore (p.3), Thoothukudi (p.10) |
| Telangana | 4 January 2021 | 1 | AQI bulletin p.5: count of 1 city row placed in Telangana — Hyderabad (p.5) |
| Tripura | 4 January 2021 | 1 | AQI bulletin p.1: count of 1 city row placed in Tripura — Agartala (p.1) |
| Uttar Pradesh | 4 January 2021 | 12 | AQI bulletin p.1–10: count of 12 city rows placed in Uttar Pradesh — Agra (p.1), Baghpat (p.2), Ghaziabad (p.4), Greater Noida (p.4), Hapur (p.4), Kanpur (p.6), Lucknow (p.7), Meerut (p.7), Moradabad (p.7), Muzaffarnagar (p.7), Noida (p.8), Varanasi (p.10) |
| West Bengal | 4 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.5), Kolkata (p.6), Siliguri (p.9) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 4 January 2021 | 27% | AQI bulletin p.1–11, Index Value column: 33 of all 122 city rows at 201 or more — Ahmedabad 264 (p.1), Ankleshwar 267 (p.1), Asansol 291 (p.1), Bhopal 329 (p.2), Damoh 263 (p.3), Dewas 268 (p.3), Durgapur 290 (p.3), Guwahati 256 (p.4), Haldia 254 (p.4), Howrah 305 (p.5), Indore 248 (p.5), Jabalpur 252 (p.5), Jodhpur 249 (p.5), Kalyan 305 (p.5), Kanpur 358 (p.6), Katni 306 (p.6), Kolkata 302 (p.6), Kota 218 (p.6), Lucknow 378 (p.7), Mandideep 248 (p.7), Mumbai 226 (p.7) … and 12 more |
| Andhra Pradesh | 4 January 2021 | 25% | AQI bulletin p.1–10, Index Value column: 1 of 4 city rows placed in Andhra Pradesh at 201 or more — Visakhapatnam 211 (p.10) |
| Assam | 4 January 2021 | 100% | AQI bulletin p.4, Index Value column: 1 of 1 city row placed in Assam at 201 or more — Guwahati 256 (p.4) |
| Bihar | 4 January 2021 | 67% | AQI bulletin p.4–8, Index Value column: 2 of 3 city rows placed in Bihar at 201 or more — Muzaffarpur 362 (p.7), Patna 350 (p.8) |
| Chandigarh | 4 January 2021 | 0% | AQI bulletin p.2, Index Value column: none of 1 city row placed in Chandigarh at 201 or more (highest 91) |
| Delhi | 4 January 2021 | 0% | AQI bulletin p.3, Index Value column: none of 1 city row placed in Delhi at 201 or more (highest 151) |
| Gujarat | 4 January 2021 | 67% | AQI bulletin p.1–10, Index Value column: 4 of 6 city rows placed in Gujarat at 201 or more — Ahmedabad 264 (p.1), Ankleshwar 267 (p.1), Vapi 289 (p.10), Vatva 270 (p.10) |
| Haryana | 4 January 2021 | 5% | AQI bulletin p.1–11, Index Value column: 1 of 20 city rows placed in Haryana at 201 or more — Narnaul 214 (p.8) |
| Karnataka | 4 January 2021 | 0% | AQI bulletin p.1–11, Index Value column: none of 15 city rows placed in Karnataka at 201 or more (highest 138) |
| Kerala | 4 January 2021 | 0% | AQI bulletin p.3–10, Index Value column: none of 7 city rows placed in Kerala at 201 or more (highest 83) |
| Madhya Pradesh | 4 January 2021 | 71% | AQI bulletin p.2–10, Index Value column: 10 of 14 city rows placed in Madhya Pradesh at 201 or more — Bhopal 329 (p.2), Damoh 263 (p.3), Dewas 268 (p.3), Indore 248 (p.5), Jabalpur 252 (p.5), Katni 306 (p.6), Mandideep 248 (p.7), Pithampur 250 (p.8), Singrauli 324 (p.9), Ujjain 285 (p.10) |
| Maharashtra | 4 January 2021 | 50% | AQI bulletin p.2–10, Index Value column: 4 of 8 city rows placed in Maharashtra at 201 or more — Kalyan 305 (p.5), Mumbai 226 (p.7), Nashik 202 (p.8), Navi Mumbai 302 (p.8) |
| Meghalaya | 4 January 2021 | 0% | AQI bulletin p.9, Index Value column: none of 1 city row placed in Meghalaya at 201 or more (highest 25) |
| Mizoram | 4 January 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Mizoram at 201 or more (highest 14) |
| Nagaland | 4 January 2021 | 0% | AQI bulletin p.6, Index Value column: none of 1 city row placed in Nagaland at 201 or more (highest 54) |
| Odisha | 4 January 2021 | 0% | AQI bulletin p.2–9, Index Value column: none of 2 city rows placed in Odisha at 201 or more (highest 193) |
| Punjab | 4 January 2021 | 0% | AQI bulletin p.1–8, Index Value column: none of 6 city rows placed in Punjab at 201 or more (highest 130) |
| Rajasthan | 4 January 2021 | 38% | AQI bulletin p.1–10, Index Value column: 3 of 8 city rows placed in Rajasthan at 201 or more — Jodhpur 249 (p.5), Kota 218 (p.6), Pali 239 (p.8) |
| Tamil Nadu | 4 January 2021 | 0% | AQI bulletin p.3–10, Index Value column: none of 3 city rows placed in Tamil Nadu at 201 or more (highest 64) |
| Telangana | 4 January 2021 | 0% | AQI bulletin p.5, Index Value column: none of 1 city row placed in Telangana at 201 or more (highest 142) |
| Tripura | 4 January 2021 | 0% | AQI bulletin p.1, Index Value column: none of 1 city row placed in Tripura at 201 or more (highest 170) |
| Uttar Pradesh | 4 January 2021 | 17% | AQI bulletin p.1–10, Index Value column: 2 of 12 city rows placed in Uttar Pradesh at 201 or more — Kanpur 358 (p.6), Lucknow 378 (p.7) |
| West Bengal | 4 January 2021 | 83% | AQI bulletin p.1–9, Index Value column: 5 of 6 city rows placed in West Bengal at 201 or more — Asansol 291 (p.1), Durgapur 290 (p.3), Haldia 254 (p.4), Howrah 305 (p.5), Kolkata 302 (p.6) |
| Geography | Period | Value | Where in the document |
|---|---|---|---|
| India | 4 January 2021 | 378 | AQI bulletin p.1–11, Index Value column: highest of all 122 city rows — Lucknow, S.No 73 (p.7), Very Poor |
| Andhra Pradesh | 4 January 2021 | 211 | AQI bulletin p.1–10, Index Value column: highest of 4 city rows placed in Andhra Pradesh — Visakhapatnam, S.No 120 (p.10), Poor |
| Assam | 4 January 2021 | 256 | AQI bulletin p.4, Index Value column: highest of 1 city row placed in Assam — Guwahati, S.No 44 (p.4), Poor |
| Bihar | 4 January 2021 | 362 | AQI bulletin p.4–8, Index Value column: highest of 3 city rows placed in Bihar — Muzaffarpur, S.No 83 (p.7), Very Poor |
| Chandigarh | 4 January 2021 | 91 | AQI bulletin p.2, Index Value column: highest of 1 city row placed in Chandigarh — Chandigarh, S.No 23 (p.2), Satisfactory |
| Delhi | 4 January 2021 | 151 | AQI bulletin p.3, Index Value column: highest of 1 city row placed in Delhi — Delhi, S.No 30 (p.3), Moderate |
| Gujarat | 4 January 2021 | 289 | AQI bulletin p.1–10, Index Value column: highest of 6 city rows placed in Gujarat — Vapi, S.No 116 (p.10), Poor |
| Haryana | 4 January 2021 | 214 | AQI bulletin p.1–11, Index Value column: highest of 20 city rows placed in Haryana — Narnaul, S.No 86 (p.8), Poor |
| Karnataka | 4 January 2021 | 138 | AQI bulletin p.1–11, Index Value column: highest of 15 city rows placed in Karnataka — Bidar, S.No 21 (p.2), Moderate |
| Kerala | 4 January 2021 | 83 | AQI bulletin p.3–10, Index Value column: highest of 7 city rows placed in Kerala — Kozhikode, S.No 71 (p.6), Satisfactory |
| Madhya Pradesh | 4 January 2021 | 329 | AQI bulletin p.2–10, Index Value column: highest of 14 city rows placed in Madhya Pradesh — Bhopal, S.No 20 (p.2), Very Poor |
| Maharashtra | 4 January 2021 | 305 | AQI bulletin p.2–10, Index Value column: highest of 8 city rows placed in Maharashtra — Kalyan, S.No 60 (p.5), Very Poor |
| Meghalaya | 4 January 2021 | 25 | AQI bulletin p.9, Index Value column: highest of 1 city row placed in Meghalaya — Shillong, S.No 101 (p.9), Good |
| Mizoram | 4 January 2021 | 14 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Mizoram — Aizawl, S.No 4 (p.1), Good |
| Nagaland | 4 January 2021 | 54 | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Nagaland — Kohima, S.No 67 (p.6), Satisfactory |
| Odisha | 4 January 2021 | 193 | AQI bulletin p.2–9, Index Value column: highest of 2 city rows placed in Odisha — Brajrajnagar, S.No 22 (p.2), Moderate |
| Punjab | 4 January 2021 | 130 | AQI bulletin p.1–8, Index Value column: highest of 6 city rows placed in Punjab — Ludhiana, S.No 74 (p.7), Moderate |
| Rajasthan | 4 January 2021 | 249 | AQI bulletin p.1–10, Index Value column: highest of 8 city rows placed in Rajasthan — Jodhpur, S.No 57 (p.5), Poor |
| Tamil Nadu | 4 January 2021 | 64 | AQI bulletin p.3–10, Index Value column: highest of 3 city rows placed in Tamil Nadu — Chennai, S.No 25 (p.3), Satisfactory |
| Telangana | 4 January 2021 | 142 | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 51 (p.5), Moderate |
| Tripura | 4 January 2021 | 170 | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Tripura — Agartala, S.No 1 (p.1), Moderate |
| Uttar Pradesh | 4 January 2021 | 378 | AQI bulletin p.1–10, Index Value column: highest of 12 city rows placed in Uttar Pradesh — Lucknow, S.No 73 (p.7), Very Poor |
| West Bengal | 4 January 2021 | 305 | AQI bulletin p.1–9, Index Value column: highest of 6 city rows placed in West Bengal — Howrah, S.No 49 (p.5), Very Poor |