Filter cities by
2021 World air quality report
Download PDF
Rank | City | 2021 | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | 2020 | 2019 | 2018 | 2017 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2101 | ![]() Topolníky, Slovakia | 13.4 | 13.9 | 23 | 16.8 | 11.5 | 6.6 | 13.1 | 11.2 | 7.3 | 10.4 | 15.7 | 16.8 | 14.9 | 11.6 | 14.4 | - | - |
2102 | ![]() Tongyeong, South Korea | 13.4 | 15.9 | 15.6 | 19.4 | 14.1 | 16.1 | 12.5 | 8.2 | 8.2 | 9.1 | 13.2 | 17.7 | 16.1 | - | 19.4 | - | - |
2103 | ![]() Ecublens, Switzerland | 13.4 | 18.1 | 20.6 | 18.2 | 13 | 5.5 | 10.3 | 10.6 | 9.7 | 11.7 | 13.9 | 16.2 | 16.9 | 11 | 11.3 | 14.8 | - |
2104 | ![]() Anaheim, USA | 13.4 | 12.5 | 12.1 | 6.7 | 10.1 | 10.9 | 10.2 | 13.4 | 16.3 | 17.8 | 8.6 | 23.7 | 18.4 | 12.4 | 9.1 | 12 | 13.6 |
2105 | ![]() Arcadia, USA | 13.4 | 10.5 | 11.8 | 6.5 | 9.4 | 10.9 | 10.7 | 15.3 | 14.9 | 16.3 | 10.8 | 24.8 | 18.7 | 17.2 | 12.2 | - | - |
2106 | ![]() Carson, USA | 13.4 | 17.1 | 13.6 | 9 | 10.7 | 9.7 | 10.6 | 13.2 | 13.7 | 13.8 | 8.9 | 22.2 | 18.4 | 15.9 | - | - | - |
2107 | ![]() Coarsegold, USA | 13.4 | 17.3 | 12.7 | 6.9 | 5.8 | 3.3 | 4.9 | 8.8 | 29.2 | 17.5 | 24.5 | 16.7 | 11.6 | 24.5 | 6.6 | - | - |
2108 | ![]() Hermosa Beach, USA | 13.4 | 14.6 | 12.2 | 8 | 10.3 | 9.4 | 10.5 | 13.4 | 16.3 | 17.5 | 11.2 | 22.3 | 15.9 | 14.3 | 11.9 | - | - |
2109 | ![]() Huntington Beach, USA | 13.4 | 17.3 | 12.4 | 8 | 11 | 9.6 | 8.3 | 11.5 | 16 | 16.4 | 10.5 | 21.9 | 19 | - | - | - | - |
2110 | ![]() Imperial Beach, USA | 13.4 | 12.7 | 10.6 | 8.6 | 10.4 | 10.7 | 8.5 | 11.1 | 16.1 | 19.1 | 15.6 | 19.9 | 17.6 | - | - | - | - |
2111 | ![]() Miramonte, USA | 13.4 | 2.3 | 9.4 | 4.6 | 6.8 | 5.2 | 7.1 | 7.9 | 17.4 | 41.8 | 38.7 | 5.4 | 4.7 | 17.1 | - | - | - |
2112 | ![]() Monroe, USA | 13.4 | - | 19.2 | 14.5 | 13.9 | 12.5 | 11 | 14.8 | 15.1 | 14 | 11.6 | 12.7 | 13.3 | - | - | - | - |
2113 | ![]() Chicago, USA | 13.4 | 17.4 | 16.2 | 12.1 | 12.4 | 9 | 10.3 | 19.4 | 16.6 | 9.3 | 12.1 | 12.2 | 13.6 | 11.1 | 12.8 | 9.4 | 6.7 |
2114 | ![]() Waukegan, USA | 13.4 | 18.2 | 16.8 | 11.9 | 13.4 | 10.9 | 10.2 | 17.9 | 16.6 | 8.2 | 11.5 | 11.3 | 13.4 | - | - | - | - |
2115 | ![]() Wheaton, USA | 13.4 | 17.8 | 16.1 | 13.1 | 11.7 | 9.3 | 9.7 | 19.1 | 17.5 | 9.3 | 11.8 | 11.6 | 13.1 | - | 11.9 | - | - |
2116 | ![]() Bigfork, USA | 13.4 | 4.7 | 5.8 | 3.5 | 3.8 | 3.2 | 5.5 | 31.2 | 31.8 | 18.9 | 6.3 | 13.3 | 8.8 | - | 6.7 | - | - |
2117 | ![]() Hardin, USA | 13.4 | - | 12.2 | 7.4 | 4.6 | 2.9 | 4.2 | 28.1 | 27.4 | 15.6 | 10.2 | 7.7 | - | - | - | - | - |
2118 | ![]() Lowell, USA | 13.4 | 11.9 | 10.3 | 11.3 | 13.4 | 13.1 | 9.8 | 19 | 15.4 | 14.5 | 22.8 | - | - | 10.8 | 14.1 | - | - |
2119 | ![]() Broadview Heights, USA | 13.4 | - | - | - | 12.5 | 10.9 | 14.1 | 19.1 | 18 | 10.9 | 10.2 | 11.2 | 13 | - | - | - | - |
2120 | ![]() Jenks, USA | 13.4 | - | - | 15.2 | 13 | 10.1 | 12.7 | 16.9 | 16.2 | 11.9 | 10.6 | - | - | - | - | - | - |
2121 | ![]() Jacksonville, USA | 13.4 | 6.3 | 7.8 | 4.3 | 3.5 | 2.2 | 5 | 10.5 | 52.7 | 39.5 | 3.5 | 9.9 | 6.9 | 17.3 | 9.5 | - | - |
2122 | ![]() McKeesport, USA | 13.4 | 14.3 | 15.7 | 9.9 | 12.2 | 12.3 | 14.9 | 20.7 | 18.2 | 11.4 | 8.9 | 11.7 | 10.5 | 11.2 | 13.3 | 10 | 11.2 |
2123 | ![]() Coulee Dam, USA | 13.4 | 6.5 | 3.6 | 3.1 | 4.7 | 3.4 | 6.1 | 24.4 | 47.9 | 14.6 | 3.6 | 8.1 | 3.6 | 8.9 | 6.7 | - | - |
2124 | ![]() Delafield, USA | 13.4 | - | - | 11.8 | 11.1 | 9.4 | 10.2 | 19.6 | 19.1 | 9.3 | 12.2 | 12.8 | 17.5 | - | - | - | - |
2125 | ![]() Leibnitz, Austria | 13.3 | 21 | 22.5 | 13.9 | 10.7 | 6.1 | 11.1 | 8.4 | 5.4 | 8.8 | 13.1 | 16.5 | 22.9 | 14.2 | - | - | - |
2126 | ![]() Roeselare, Belgium | 13.3 | 13.5 | 15.5 | 17.8 | 15.4 | 9.7 | 13.7 | 11.5 | 8.2 | 16.3 | 11 | 14 | 13.5 | 12.1 | 13.3 | 15.3 | 14.1 |
2127 | ![]() Sena Madureira, Brazil | 13.3 | 3.3 | 3.5 | 1.7 | 4.1 | 7.7 | 9.1 | 15.5 | 35.2 | 28.9 | 15.5 | 2.9 | 2.7 | 15.6 | - | - | - |
2128 | ![]() Piracicaba, Brazil | 13.3 | 8.6 | 8.8 | 11 | 7.4 | 15.8 | 13.7 | 18.9 | 21.2 | 23.1 | 9.8 | 8.4 | 7.8 | 13.7 | 13.4 | 13.6 | 12.5 |
2129 | ![]() Qiongshan, China | 13.3 | - | - | 15.9 | 12.9 | 10.3 | 12.1 | 8.9 | 9.5 | 10.2 | 11.2 | 18.6 | 22.6 | - | - | - | - |
2130 | ![]() Teplice, Czech Republic | 13.3 | 14 | 23.9 | 11.7 | 8.8 | 5.8 | 12 | 9.4 | 8.3 | 11.8 | 16.8 | 17.2 | 20.6 | 13.4 | 14.2 | 19.1 | 18.8 |
2131 | ![]() Lübeck, Germany | 13.3 | 10.4 | 14.1 | 15.3 | 12.2 | 9.5 | 16.2 | 15.6 | 11.3 | 14.3 | 12.3 | 13.3 | 15.5 | 10.3 | 9.7 | 11.4 | 10.6 |
2132 | ![]() Szekesfehervar, Hungary | 13.3 | 18.9 | 25 | 16.7 | 12.5 | 5.8 | 10.2 | 10 | 5.8 | 10.2 | 17 | 20.6 | 18.2 | 14.9 | - | - | - |
2133 | ![]() Acerra, Italy | 13.3 | 21.5 | 36.8 | 12.2 | 8.6 | 3.1 | 8.4 | 8.2 | 5.2 | 7.6 | 6.1 | 12.1 | 32 | - | - | - | - |
2134 | ![]() Cava De Tirreni, Italy | 13.3 | 18.3 | 21 | 15.4 | 8.7 | 6.8 | 16 | 8.5 | 11.2 | 14.2 | 12 | 13.3 | 14.5 | - | - | - | - |
2135 | ![]() Trento, Italy | 13.3 | 19.8 | 23.2 | 15.8 | 10 | 5.9 | 11.7 | 10.7 | 10 | 12.8 | 11.7 | 13.3 | 16.2 | 13.7 | 11.9 | - | - |
2136 | ![]() Hofu, Japan | 13.3 | 8.5 | 11.5 | 14.5 | 11.5 | 14.3 | 18.2 | 15.3 | 11.2 | 14.2 | 12.7 | 13.7 | 11.6 | 12.1 | 12.4 | 12.3 | 13 |
2137 | ![]() Vitina, Kosovo | 13.3 | 21 | 28.8 | 15.2 | 7.4 | 3.2 | 7.6 | 11 | 9 | 8.8 | 22 | 104.9 | 25.5 | 27.2 | 22.8 | - | - |
2138 | ![]() Santiago, Mexico | 13.3 | 12.6 | 18.3 | 15.4 | 19.3 | 14.1 | 12.7 | - | 9.7 | 12.1 | 10.6 | 10.5 | 10.9 | - | - | - | - |
2139 | ![]() Ulaan-Uul, Mongolia | 13.3 | 16.8 | 18 | 16.4 | 12.4 | 19.1 | 9.9 | 8.7 | 17.6 | 8.8 | 9.2 | 12.9 | 10.9 | - | - | - | - |
2140 | ![]() Ilinden, North Macedonia | 13.3 | - | - | - | 11.5 | 5.7 | 9.4 | 10.8 | 9.6 | 8.3 | 18 | 25.3 | 25.2 | - | - | - | - |
2141 | ![]() Borovnica, Slovenia | 13.3 | - | 16.6 | 18 | 11.7 | 5 | 12.7 | 11 | 8.5 | 12 | 18.9 | 17.7 | 15.5 | - | - | - | - |
2142 | ![]() Tha Maka, Thailand | 13.3 | - | - | 39.9 | 17.6 | 10.3 | 6.3 | 5.1 | 6.9 | 6.6 | 11.3 | 21.8 | 38.2 | - | - | - | - |
2143 | ![]() Carmichael, USA | 13.3 | 19.3 | 11.4 | 7.5 | 6 | 3.7 | 4 | 8.7 | 29.5 | 16 | 8.7 | 24.3 | 18.9 | - | - | - | - |
2144 | ![]() Somerset, USA | 13.3 | 10.9 | 7.1 | 4.7 | 4.1 | 2.4 | 3.8 | 6.6 | 64.7 | 16.4 | 8.8 | 10 | 9.4 | 14.7 | 6 | - | - |
2145 | ![]() Stockton, USA | 13.3 | 22.5 | 12.7 | 7.3 | 5.6 | 4.6 | 4.6 | 7.3 | 24.6 | 14.3 | 10.4 | 25.8 | 19.7 | 16.1 | 9.6 | 17.7 | 12.5 |
2146 | ![]() Torrance, USA | 13.3 | 14 | 12.2 | 7.4 | 10 | 9.4 | 9.9 | 13.2 | 16.1 | 16.9 | 10.5 | 23 | 17.8 | 14.4 | 11.6 | - | - |
2147 | ![]() Atlanta, USA | 13.3 | 11.5 | 12.6 | 13.9 | 13.3 | 11.5 | 11.4 | 15.8 | 15.7 | 14.4 | 12.1 | 12.6 | 14.9 | 10 | 11.9 | 10.6 | 11.3 |
2148 | ![]() Evans, USA | 13.3 | 10.2 | 7.2 | 14.8 | 16.6 | - | - | 14.2 | 14.4 | 15 | 13.3 | 12.5 | 13.1 | - | 13.5 | - | - |
2149 | ![]() Flowery Branch, USA | 13.3 | - | 18.2 | 13 | 13.5 | 12.6 | 11.6 | 15.2 | 15.5 | 13.5 | 11.4 | 11.5 | 13.7 | - | - | - | - |
2150 | ![]() Bloomington, USA | 13.3 | 15.3 | 18.6 | 12 | 12.3 | 12 | 11.4 | 19.1 | 16.1 | 10.6 | 10.3 | 11 | 11.1 | - | 8.4 | 9.8 | 6.5 |