| 2 | Papeete, French Polynesia | Oceania | AQI 15 | PM2.5 2.3 µg/m³ |
| 3 | Avarua, Cook Islands | Oceania | AQI 16 | PM2.5 2.2 µg/m³ |
| 4 | Pago Pago, American Samoa | Oceania | AQI 16 | PM2.5 2.8 µg/m³ |
| 5 | South Tarawa, Kiribati | Oceania | AQI 16 | PM2.5 2.8 µg/m³ |
| 6 | Majuro, Marshall Islands | Oceania | AQI 16 | PM2.5 2.9 µg/m³ |
| 7 | Palikir, Micronesia | Oceania | AQI 16 | PM2.5 2.9 µg/m³ |
| 8 | Alofi, Niue | Oceania | AQI 17 | PM2.5 2.6 µg/m³ |
| 9 | Yaren, Nauru | Oceania | AQI 17 | PM2.5 3 µg/m³ |
| 10 | Kingston, Norfolk Island | Oceania | AQI 18 | PM2.5 2.9 µg/m³ |
| 12 | Saipan, Northern Mariana Islands | Oceania | AQI 18 | PM2.5 3 µg/m³ |
| 13 | Apia, Samoa | Oceania | AQI 18 | PM2.5 3.1 µg/m³ |
| 14 | Funafuti, Tuvalu | Oceania | AQI 18 | PM2.5 3.3 µg/m³ |
| 15 | Hagåtña, Guam | Oceania | AQI 20 | PM2.5 3.4 µg/m³ |
| 16 | Mata-Utu, Wallis and Futuna | Oceania | AQI 20 | PM2.5 3.5 µg/m³ |
| 18 | West Island, Cocos (Keeling) Islands | Oceania | AQI 20 | PM2.5 3.5 µg/m³ |
| 21 | Nukuʻalofa, Tonga | Oceania | AQI 21 | PM2.5 3.7 µg/m³ |
| 22 | Nouméa, New Caledonia | Oceania | AQI 22 | PM2.5 3.7 µg/m³ |
| 23 | Kalgoorlie-Boulder, Australia | Oceania | AQI 23 | PM2.5 3.8 µg/m³ |
| 24 | Mount Gambier, Australia | Oceania | AQI 23 | PM2.5 4.1 µg/m³ |
| 25 | Port Vila, Vanuatu | Oceania | AQI 24 | PM2.5 4.2 µg/m³ |
| 28 | Mildura, Australia | Oceania | AQI 25 | PM2.5 4.5 µg/m³ |
| 29 | Hobart, Australia | Oceania | AQI 26 | PM2.5 4.7 µg/m³ |
| 34 | Bendigo, Australia | Oceania | AQI 28 | PM2.5 5 µg/m³ |
| 36 | Koror, Palau | Oceania | AQI 28 | PM2.5 5.1 µg/m³ |
| 37 | Launceston, Australia | Oceania | AQI 29 | PM2.5 5.2 µg/m³ |
| 38 | New Plymouth, New Zealand | Oceania | AQI 29 | PM2.5 5.2 µg/m³ |
| 39 | Ballarat, Australia | Oceania | AQI 29 | PM2.5 5.3 µg/m³ |
| 44 | Adelaide, Australia | Oceania | AQI 30 | PM2.5 5.3 µg/m³ |
| 45 | Cairns, Australia | Oceania | AQI 30 | PM2.5 5.3 µg/m³ |
| 46 | Gold Coast, Australia | Oceania | AQI 30 | PM2.5 5.3 µg/m³ |
| 48 | Kerikeri, New Zealand | Oceania | AQI 30 | PM2.5 5.4 µg/m³ |
| 50 | Rockhampton, Australia | Oceania | AQI 30 | PM2.5 5.4 µg/m³ |
| 51 | Sunshine Coast, Australia | Oceania | AQI 30 | PM2.5 5.4 µg/m³ |
| 52 | Toowoomba, Australia | Oceania | AQI 30 | PM2.5 5.4 µg/m³ |
| 53 | Invercargill, New Zealand | Oceania | AQI 30 | PM2.5 5.5 µg/m³ |
| 63 | Geelong, Australia | Oceania | AQI 31 | PM2.5 5.6 µg/m³ |
| 64 | Queenstown, New Zealand | Oceania | AQI 31 | PM2.5 5.6 µg/m³ |
| 66 | Whangarei, New Zealand | Oceania | AQI 31 | PM2.5 5.6 µg/m³ |
| 67 | Shepparton, Australia | Oceania | AQI 31 | PM2.5 5.9 µg/m³ |
| 83 | Dunedin, New Zealand | Oceania | AQI 32 | PM2.5 5.8 µg/m³ |
| 84 | Mackay, Australia | Oceania | AQI 32 | PM2.5 5.8 µg/m³ |
| 97 | Lower Hutt, New Zealand | Oceania | AQI 33 | PM2.5 5.9 µg/m³ |
| 100 | Tamworth, Australia | Oceania | AQI 33 | PM2.5 6 µg/m³ |
| 116 | Auckland, New Zealand | Oceania | AQI 34 | PM2.5 6 µg/m³ |
| 117 | Townsville, Australia | Oceania | AQI 34 | PM2.5 6 µg/m³ |
| 119 | Central Coast, Australia | Oceania | AQI 34 | PM2.5 6.1 µg/m³ |
| 120 | Mandurah, Australia | Oceania | AQI 34 | PM2.5 6.1 µg/m³ |
| 123 | Flying Fish Cove, Christmas Island | Oceania | AQI 34 | PM2.5 6.2 µg/m³ |
| 124 | Suva, Fiji | Oceania | AQI 34 | PM2.5 6.2 µg/m³ |
| 125 | Whanganui, New Zealand | Oceania | AQI 34 | PM2.5 6.2 µg/m³ |