List of most-polluted cities by particulate matter concentration
This list contains the top 499 cities by PM2.5 annual mean concentration measurement whose measurement is greater than or equal to the air quality guideline (AQG) of 10[1] as documented by the World Health Organization covering the period from 2008 to 2016, with the majority of values being more recent than 2013. The 2018 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 2700 towns and cities in 91 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometres, respectively).[2][3][4]
| Position | Country | City/Town | Year | PM2.5 | Temporal coverage | PM10 | Temporal coverage | Database version (year) |
|---|---|---|---|---|---|---|---|---|
| 1 | India | Kanpur | 2016 | 173 | >75% | 319 | NA | 2018 |
| 2 | India | Faridabad | 2016 | 172 | >75% | 316 | NA | 2018 |
| 3 | India | Gaya | 2016 | 149 | 50% -< 75% | 275 | NA | 2018 |
| 4 | India | Varanasi | 2016 | 146 | >75% | 260 | NA | 2018 |
| 5 | India | Patna | 2016 | 144 | >75% | 266 | NA | 2018 |
| 6 | India | Delhi | 2016 | 143 | >75% | 292 | NA | 2018 |
| 7 | India | Lucknow | 2016 | 138 | >75% | 255 | NA | 2018 |
| 8 | Cameroon | Bamenda | 2012 | 132 | NA | 141 | NA | 2016 |
| 9 | India | Agra | 2016 | 131 | >75% | 194 | NA | 2018 |
| 10 | India | Gurgaon | 2016 | 120 | 50% -< 75% | 124 | NA | 2018 |
| 11 | India | Muzaffarpur | 2016 | 120 | >75% | 221 | NA | 2018 |
| 12 | India | Srinagar | 2016 | 113 | NA | 169 | NA | 2018 |
| 13 | Pakistan | Peshawar | 2010 | 111 | NA | 540 | NA | 2016 |
| 14 | Pakistan | Rawalpindi | 2010 | 107 | NA | 448 | NA | 2016 |
| 15 | India | Jaipur | 2016 | 105 | 50% -< 75% | 193 | NA | 2018 |
| 16 | Uganda | Kampala | 2013 | 104 | NA | 170 | NA | 2016 |
| 17 | India | Patiala | 2016 | 101 | NA | 184 | NA | 2018 |
| 18 | India | Jodhpur | 2016 | 98 | >75% | 180 | NA | 2018 |
| 19 | Bangladesh | Narayangonj | 2015 | 94 | >75% | 205 | >75% | 2018 |
| 20 | China | Baoding | 2016 | 93 | NA | 147 | NA | 2018 |
| 21 | Qatar | Doha | 2012 | 93 | NA | 168 | NA | 2016 |
| 22 | Mongolia | Ulaanbaatar | 2016 | 92 | >75% | 197 | NA | 2018 |
| 23 | China | Ji'nan | 2014 | 90 | NA | 192 | NA | 2018 |
| 24 | China | Shijiazhuang | 2015 | 89 | NA | 147 | NA | 2018 |
| 25 | Pakistan | Karachi | 2009 | 88 | NA | 290 | NA | 2016 |
| 26 | China | Hengshui | 2016 | 87 | NA | 143 | NA | 2018 |
| 27 | China | Xingtai | 2016 | 87 | NA | 186 | NA | 2018 |
| 28 | Afghanistan | Kabul | 2009 | 86 | NA | 260 | NA | 2016 |
| 29 | China | Anyang | 2016 | 86 | NA | 155 | NA | 2018 |
| 30 | China | Liaocheng | 2016 | 86 | NA | 151 | NA | 2018 |
| 31 | China | Jiaozuo | 2016 | 85 | NA | 142 | NA | 2018 |
| 32 | Qatar | Al Wakrah | 2012 | 85 | NA | 152 | NA | 2016 |
| 33 | Bangladesh | Khulna | 2015 | 84 | 50% -< 75% | 94 | >75% | 2018 |
| 34 | China | Xinxiang | 2016 | 84 | NA | 144 | NA | 2018 |
| 35 | India | Nagpur | 2016 | 84 | NA | 86 | NA | 2018 |
| 36 | China | Handan | 2016 | 82 | NA | 175 | NA | 2018 |
| 37 | China | Heze | 2016 | 82 | NA | 143 | NA | 2018 |
| 38 | China | Ji'ning | 2015 | 82 | NA | 140 | NA | 2018 |
| 39 | China | Xianyang | 2016 | 82 | NA | 149 | NA | 2018 |
| 40 | Bangladesh | Gazipur | 2015 | 81 | >75% | 143 | >75% | 2018 |
| 41 | China | Dezhou | 2016 | 81 | NA | 141 | NA | 2018 |
| 42 | China | Zaozhuang | 2016 | 81 | NA | 141 | NA | 2018 |
| 43 | Bangladesh | Barisal | 2015 | 80 | >75% | 113 | >75% | 2018 |
| 44 | China | Dongying | 2015 | 79 | NA | 136 | NA | 2018 |
| 45 | China | Luoyang | 2016 | 79 | NA | 130 | NA | 2018 |
| 46 | Kuwait | Al-Ahmadi | 2015 | 79 | >75% | 138 | >75% | 2018 |
| 47 | China | Shouguang | 2014 | 78 | NA | 117 | NA | 2016 |
| 48 | China | Zhengzhou | 2016 | 78 | NA | 143 | NA | 2018 |
| 49 | China | Luohe | 2016 | 77 | NA | 130 | NA | 2018 |
| 50 | China | Shangqiu | 2016 | 77 | NA | 127 | NA | 2018 |
| 51 | China | Wei'nan | 2016 | 76 | NA | 139 | NA | 2018 |
| 52 | China | Pingdingshan | 2016 | 75 | NA | 125 | NA | 2018 |
| 53 | China | Linfen | 2016 | 74 | NA | 158 | NA | 2018 |
| 54 | China | Tangshan | 2016 | 74 | NA | 127 | NA | 2018 |
| 55 | China | Urumqi | 2016 | 74 | NA | 115 | NA | 2018 |
| 56 | India | Kolkata | 2016 | 74 | >75% | 136 | NA | 2018 |
| 57 | China | Beijing | 2016 | 73 | NA | 92 | NA | 2018 |
| 58 | China | Hebi | 2016 | 73 | NA | 128 | NA | 2018 |
| 59 | China | Jinan | 2016 | 73 | NA | 141 | NA | 2018 |
| 60 | China | Laiwu | 2016 | 73 | NA | 127 | NA | 2018 |
| 61 | China | Zigong | 2016 | 73 | NA | 99 | NA | 2018 |
| 62 | Saudi Arabia | Riyadh | 2016 | 73 | NA | 251 | NA | 2018 |
| 63 | China | Anshan | 2015 | 72 | NA | 115 | NA | 2018 |
| 64 | China | Kaifeng | 2016 | 72 | NA | 122 | NA | 2018 |
| 65 | China | Xi'an | 2016 | 71 | NA | 137 | NA | 2018 |
| 66 | China | Binzhou | 2016 | 70 | NA | 123 | NA | 2018 |
| 67 | China | Yangquan | 2014 | 70 | NA | 105 | NA | 2016 |
| 68 | China | Cangzhou | 2016 | 69 | NA | 147 | NA | 2018 |
| 69 | China | Puyang | 2016 | 69 | NA | 137 | NA | 2018 |
| 70 | China | Tianjin | 2016 | 69 | NA | 103 | NA | 2018 |
| 71 | Afghanistan | Mazar-E Sharif | 2009 | 68 | NA | 334 | NA | 2016 |
| 72 | China | Jiangyin | 2014 | 68 | NA | 102 | NA | 2016 |
| 73 | China | Weinan | 2014 | 68 | NA | 102 | NA | 2016 |
| 74 | China | Xuchang | 2016 | 68 | NA | 122 | NA | 2018 |
| 75 | China | Zhoukou | 2016 | 68 | NA | 113 | NA | 2018 |
| 76 | China | Zhumadian | 2016 | 68 | NA | 120 | NA | 2018 |
| 77 | Pakistan | Lahore | 2010 | 68 | NA | 198 | NA | 2016 |
| 78 | Chile | Comuna De Coyhaique | 2016 | 67 | NA | 85 | NA | 2018 |
| 79 | China | Changzhi | 2014 | 67 | NA | 101 | NA | 2016 |
| 80 | Cameroon | Bafoussam | 2012 | 67 | NA | 105 | NA | 2016 |
| 81 | Bangladesh | Chittagong | 2015 | 66 | 50% -< 75% | 91 | >75% | 2018 |
| 82 | Bahrain | Hamad Town | 2012 | 66 | NA | 318 | NA | 2016 |
| 83 | China | Langfang | 2016 | 66 | NA | 112 | NA | 2018 |
| 84 | China | Sanmenxia | 2016 | 66 | NA | 127 | NA | 2018 |
| 85 | China | Taiyuan | 2016 | 66 | NA | 125 | NA | 2018 |
| 86 | Iran (Islamic Republic of) | Hamedan | 2013 | 66 | NA | 149 | NA | 2018 |
| 87 | Pakistan | Islamabad | 2011 | 66 | NA | 217 | NA | 2016 |
| 88 | Bosnia and Herzegovina | Tuzla | 2010 | 65 | NA | 106 | NA | 2016 |
| 89 | India | Ahmedabad | 2015 | 65 | 50% -< 75% | 120 | NA | 2018 |
| 90 | Bahrain | Ma'ameer | 2012 | 64 | NA | 257 | NA | 2016 |
| 91 | Bosnia and Herzegovina | Lukavac | 2016 | 64 | >75% | 84 | NA | 2018 |
| 92 | Chile | Coyhaique | 2014 | 64 | NA | 75 | NA | 2016 |
| 93 | China | Jurong | 2014 | 64 | NA | 97 | NA | 2016 |
| 94 | China | Luzhou | 2016 | 64 | NA | 87 | NA | 2018 |
| 95 | China | Xiangyang | 2016 | 64 | NA | 93 | NA | 2018 |
| 96 | India | Mumbai | 2016 | 64 | >75% | 104 | NA | 2018 |
| 97 | Bahrain | Manama | 2016 | 63 | 50% -< 75% | 154 | NA | 2018 |
| 98 | China | Chengdu | 2016 | 63 | NA | 105 | NA | 2018 |
| 99 | China | Leshan | 2016 | 63 | NA | 93 | NA | 2018 |
| 100 | China | Nanyang | 2016 | 63 | NA | 119 | NA | 2018 |
| 101 | China | Tai'an | 2016 | 63 | NA | 112 | NA | 2018 |
| 102 | China | Xining | 2014 | 63 | NA | 120 | NA | 2018 |
| 103 | China | Jincheng | 2016 | 62 | NA | 111 | NA | 2018 |
| 104 | China | Jinzhong | 2016 | 62 | NA | 109 | NA | 2018 |
| 105 | China | Yichang | 2016 | 62 | NA | 97 | NA | 2018 |
| 106 | Bangladesh | Sylhet | 2015 | 61 | >75% | 111 | >75% | 2018 |
| 107 | Iran (Islamic Republic of) | Shahre Kord | 2016 | 61 | NA | 140 | NA | 2018 |
| 108 | China | Ezhou | 2016 | 60 | NA | 100 | NA | 2018 |
| 109 | China | Fuyang | 2014 | 60 | NA | 90 | NA | 2016 |
| 110 | China | Jingzhou | 2016 | 60 | NA | 100 | NA | 2018 |
| 111 | China | Xuzhou | 2016 | 60 | NA | 118 | NA | 2018 |
| 112 | China | Zhangjiagang | 2014 | 60 | NA | 91 | NA | 2016 |
| 113 | India | Chandrapur | 2016 | 60 | >75% | 109 | NA | 2018 |
| 114 | South Africa | Hartebeespoort | 2014 | 60 | NA | 119 | NA | 2016 |
| 115 | China | Baoji | 2016 | 59 | NA | 111 | NA | 2018 |
| 116 | China | Chuzhou | 2016 | 59 | NA | 77 | NA | 2018 |
| 117 | China | Tongchuan | 2016 | 59 | NA | 104 | NA | 2018 |
| 118 | Bahrain | Nabih Saleh | 2012 | 58 | NA | 244 | NA | 2016 |
| 119 | China | Bozhou | 2016 | 58 | NA | 83 | NA | 2018 |
| 120 | China | Jingmen | 2016 | 58 | NA | 99 | NA | 2018 |
| 121 | China | Korla | 2014 | 58 | NA | 87 | NA | 2016 |
| 122 | China | Lin'an | 2014 | 58 | NA | 87 | NA | 2016 |
| 123 | China | Pingdu | 2014 | 58 | NA | 88 | NA | 2016 |
| 124 | China | Wafangdian | 2014 | 58 | NA | 88 | NA | 2016 |
| 125 | China | Xinyang | 2016 | 58 | NA | 96 | NA | 2018 |
| 126 | China | Yibin | 2015 | 58 | NA | 82 | NA | 2018 |
| 127 | China | Yiwu | 2014 | 58 | NA | 88 | NA | 2016 |
| 128 | China | Zhuji | 2014 | 58 | NA | 88 | NA | 2016 |
| 129 | Iran (Islamic Republic of) | Ahvaz | 2016 | 58 | NA | 132 | NA | 2018 |
| 130 | Saudi Arabia | Jubail | 2016 | 58 | >75% | 129 | >75% | 2018 |
| 131 | Bangladesh | Dhaka | 2016 | 57 | >75% | 104 | NA | 2018 |
| 132 | China | Hefei | 2016 | 57 | NA | 83 | NA | 2018 |
| 133 | China | Huangshi | 2016 | 57 | NA | 89 | NA | 2018 |
| 134 | China | Maanshan | 2014 | 57 | NA | 87 | NA | 2016 |
| 135 | China | Nanchong | 2014 | 57 | NA | 86 | NA | 2016 |
| 136 | China | Wuhan | 2016 | 57 | NA | 92 | NA | 2018 |
| 137 | China | Changde | 2016 | 56 | NA | 80 | NA | 2018 |
| 138 | China | Dazhou | 2016 | 56 | NA | 86 | NA | 2018 |
| 139 | China | Huainan | 2016 | 56 | NA | 85 | NA | 2018 |
| 140 | China | Laixi | 2014 | 56 | NA | 84 | NA | 2016 |
| 141 | China | Laizhou | 2014 | 56 | NA | 84 | NA | 2016 |
| 142 | China | Linyi | 2014 | 56 | NA | 84 | NA | 2016 |
| 143 | China | Suizhou | 2016 | 56 | NA | 88 | NA | 2018 |
| 144 | China | Suqian | 2016 | 56 | NA | 120 | NA | 2018 |
| 145 | China | Wujiang | 2014 | 56 | NA | 85 | NA | 2016 |
| 146 | China | Xinzhou | 2016 | 56 | NA | 103 | NA | 2018 |
| 147 | Iran (Islamic Republic of) | Genaveh | 2016 | 56 | NA | 129 | NA | 2018 |
| 148 | Saudi Arabia | Dammam | 2016 | 56 | NA | 161 | NA | 2018 |
| 149 | China | Deyang | 2016 | 55 | NA | 91 | NA | 2018 |
| 150 | China | Jinzhou | 2016 | 55 | NA | 81 | NA | 2018 |
| 151 | China | Rizhao | 2016 | 55 | NA | 101 | NA | 2018 |
| 152 | China | Taian | 2014 | 55 | NA | 83 | NA | 2016 |
| 153 | China | Yinchuan | 2016 | 55 | NA | 117 | NA | 2018 |
| 154 | India | Panchkula | 2016 | 55 | >75% | 101 | NA | 2018 |
| 155 | Iran (Islamic Republic of) | Asalueih | 2016 | 55 | NA | 126 | NA | 2018 |
| 156 | China | Anqing | 2016 | 54 | NA | 71 | NA | 2018 |
| 157 | China | Chongqing | 2016 | 54 | NA | 77 | NA | 2018 |
| 158 | China | Jining | 2014 | 54 | NA | 81 | NA | 2016 |
| 159 | China | Lanzhou | 2016 | 54 | NA | 132 | NA | 2018 |
| 160 | China | Neijiang | 2016 | 54 | NA | 76 | NA | 2018 |
| 161 | China | Shaoyang | 2016 | 54 | NA | 77 | NA | 2018 |
| 162 | China | Shenyang | 2016 | 54 | NA | 94 | NA | 2018 |
| 163 | China | Taicang | 2014 | 54 | NA | 82 | NA | 2016 |
| 164 | China | Yixing | 2014 | 54 | NA | 81 | NA | 2016 |
| 165 | China | Zhaoyuan | 2014 | 54 | NA | 82 | NA | 2016 |
| 166 | China | Zibo | 2014 | 54 | NA | 82 | NA | 2016 |
| 167 | China | Changsha | 2016 | 53 | NA | 73 | NA | 2018 |
| 168 | China | Huai'an | 2016 | 53 | NA | 92 | NA | 2018 |
| 169 | China | Wuhu | 2016 | 53 | NA | 75 | NA | 2018 |
| 170 | China | Wuxi | 2016 | 53 | NA | 82 | NA | 2018 |
| 171 | China | Harbin | 2016 | 52 | NA | 74 | NA | 2018 |
| 172 | China | Hengyang | 2016 | 52 | NA | 76 | NA | 2018 |
| 173 | China | Jiaonan | 2014 | 52 | NA | 79 | NA | 2016 |
| 174 | China | Jiaozhou | 2014 | 52 | NA | 79 | NA | 2016 |
| 175 | China | Liyang | 2014 | 52 | NA | 78 | NA | 2016 |
| 176 | China | Haimen | 2014 | 51 | NA | 77 | NA | 2016 |
| 177 | China | Huanggang | 2016 | 51 | NA | 75 | NA | 2018 |
| 178 | China | Jimo | 2014 | 51 | NA | 77 | NA | 2016 |
| 179 | China | Shiyan | 2016 | 51 | NA | 81 | NA | 2018 |
| 180 | China | Taizhou(Jiangsu Province) | 2016 | 51 | NA | 87 | NA | 2018 |
| 181 | China | Tongling | 2016 | 51 | NA | 78 | NA | 2018 |
| 182 | China | Xiangtan | 2016 | 51 | NA | 85 | NA | 2018 |
| 183 | China | Xuancheng | 2016 | 51 | NA | 68 | NA | 2018 |
| 184 | China | Yangzhou | 2016 | 51 | NA | 87 | NA | 2018 |
| 185 | China | Zhuzhou | 2016 | 51 | NA | 83 | NA | 2018 |
| 186 | Kuwait | Saad Al-Abdullah | 2016 | 51 | 50% -< 75% | 63 | >75% | 2018 |
| 187 | China | Baishan | 2016 | 50 | NA | 81 | NA | 2018 |
| 188 | China | Jiujiang | 2016 | 50 | NA | 74 | NA | 2018 |
| 189 | China | Zhenjiang | 2016 | 50 | NA | 80 | NA | 2018 |
| 190 | India | Pune | 2016 | 50 | >75% | 89 | NA | 2018 |
| 191 | Iran (Islamic Republic of) | Zabol | 2016 | 50 | NA | 115 | NA | 2018 |
| 192 | Australia | Hobart | 2013 | 49 | NA | 112 | NA | 2018 |
| 193 | Chile | Padre Las Casas | 2016 | 49 | NA | 64 | NA | 2018 |
| 194 | China | Changshu | 2014 | 49 | NA | 74 | NA | 2016 |
| 195 | China | Changzhou | 2016 | 49 | NA | 81 | NA | 2018 |
| 196 | China | Hangzhou | 2016 | 49 | NA | 105 | NA | 2018 |
| 197 | China | Ma'anshan | 2016 | 49 | NA | 75 | NA | 2018 |
| 198 | China | Mianyang | 2016 | 49 | NA | 78 | NA | 2018 |
| 199 | China | Weifang | 2014 | 49 | NA | 73 | NA | 2016 |
| 200 | China | Xi'ning | 2016 | 49 | NA | 113 | NA | 2018 |
| 201 | China | Yueyang | 2016 | 49 | NA | 72 | NA | 2018 |
| 202 | China | Ziyang | 2016 | 49 | NA | 95 | NA | 2018 |
| 203 | Cameroon | Yaounde | 2012 | 49 | NA | 65 | NA | 2016 |
| 204 | India | Chennai | 2016 | 49 | >75% | 80 | NA | 2018 |
| 205 | Nepal | Kathmandu | 2013 | 49 | NA | 88 | NA | 2016 |
| 206 | China | Baicheng | 2016 | 48 | NA | 75 | NA | 2018 |
| 207 | China | Enshi | 2016 | 48 | NA | 69 | NA | 2018 |
| 208 | China | Jintan | 2014 | 48 | NA | 72 | NA | 2016 |
| 209 | China | Nanjing | 2016 | 48 | NA | 85 | NA | 2018 |
| 210 | China | Rushan | 2014 | 48 | NA | 72 | NA | 2016 |
| 211 | China | Tieling | 2016 | 48 | NA | 83 | NA | 2018 |
| 212 | China | Wuzhong | 2016 | 48 | NA | 98 | NA | 2018 |
| 213 | China | Xianning | 2016 | 48 | NA | 77 | NA | 2018 |
| 214 | China | Yan'an | 2014 | 48 | NA | 73 | NA | 2016 |
| 215 | China | Zhangjiajie | 2016 | 48 | NA | 72 | NA | 2018 |
| 216 | Viet Nam | Ha Noi | 2016 | 48 | >75% | 102 | NA | 2018 |
| 217 | Bangladesh | Rajshahi | 2015 | 47 | >75% | 86 | 50% -< 75% | 2018 |
| 218 | China | Baotou | 2016 | 47 | NA | 105 | NA | 2018 |
| 219 | China | Guilin | 2016 | 47 | NA | 64 | NA | 2018 |
| 220 | China | Huludao | 2016 | 47 | NA | 87 | NA | 2018 |
| 221 | China | Huzhou | 2016 | 47 | NA | 100 | NA | 2018 |
| 222 | China | Liaoyang | 2016 | 47 | NA | 83 | NA | 2018 |
| 223 | China | Shizuishan | 2016 | 47 | NA | 114 | NA | 2018 |
| 224 | China | Zhangqiu | 2014 | 47 | NA | 71 | NA | 2016 |
| 225 | China | Changchun | 2016 | 46 | NA | 78 | NA | 2018 |
| 226 | China | Guang'an | 2016 | 46 | NA | 78 | NA | 2018 |
| 227 | China | Haidong | 2016 | 46 | NA | 114 | NA | 2018 |
| 228 | China | Jinhua | 2016 | 46 | NA | 98 | NA | 2018 |
| 229 | China | Kunshan | 2014 | 46 | NA | 69 | NA | 2016 |
| 230 | China | Lianyungang | 2016 | 46 | NA | 87 | NA | 2018 |
| 231 | China | Liaoyuan | 2016 | 46 | NA | 63 | NA | 2018 |
| 232 | China | Loudi | 2016 | 46 | NA | 71 | NA | 2018 |
| 233 | China | Lu'an | 2016 | 46 | NA | 73 | NA | 2018 |
| 234 | China | Nantong | 2016 | 46 | NA | 70 | NA | 2018 |
| 235 | China | Penglai | 2014 | 46 | NA | 69 | NA | 2016 |
| 236 | China | Qinhuangdao | 2016 | 46 | NA | 87 | NA | 2018 |
| 237 | China | Siping | 2016 | 46 | NA | 77 | NA | 2018 |
| 238 | China | Suzhou | 2016 | 46 | NA | 72 | NA | 2018 |
| 239 | China | Wendeng | 2014 | 46 | NA | 69 | NA | 2016 |
| 240 | China | Wuhai | 2016 | 46 | NA | 111 | NA | 2018 |
| 241 | India | Bangalore | 2016 | 46 | >75% | 96 | 50% -< 75% | 2018 |
| 242 | Iran (Islamic Republic of) | Baghershahr | 2016 | 46 | NA | 105 | NA | 2018 |
| 243 | Iran (Islamic Republic of) | Bushehr | 2016 | 46 | NA | 105 | NA | 2018 |
| 244 | Philippines | Nia Road | 2016 | 46 | NA | 98 | NA | 2018 |
| 245 | China | Benxi | 2016 | 45 | NA | 74 | NA | 2018 |
| 246 | China | Daqing | 2015 | 45 | NA | 62 | NA | 2018 |
| 247 | China | Ganzhou | 2016 | 45 | NA | 68 | NA | 2018 |
| 248 | China | Huangnan | 2016 | 45 | NA | 86 | NA | 2018 |
| 249 | China | Qingdao | 2016 | 45 | NA | 85 | NA | 2018 |
| 250 | China | Shanghai | 2016 | 45 | NA | 59 | NA | 2018 |
| 251 | China | Shaoxing | 2016 | 45 | NA | 68 | NA | 2018 |
| 252 | China | Xiaogan | 2016 | 45 | NA | 78 | NA | 2018 |
| 253 | China | Yongzhou | 2016 | 45 | NA | 70 | NA | 2018 |
| 254 | Indonesia | Jakarta | 2016 | 45 | >75% | 82 | NA | 2018 |
| 255 | Philippines | Navotas City | 2016 | 45 | NA | 96 | NA | 2018 |
| 256 | Bahrain | Ras Hayan | 2012 | 44 | NA | 250 | NA | 2016 |
| 257 | Chile | Osorno | 2016 | 44 | NA | 56 | NA | 2018 |
| 258 | China | Fushun | 2016 | 44 | NA | 78 | NA | 2018 |
| 259 | China | Jiaxing | 2016 | 44 | NA | 94 | NA | 2018 |
| 260 | China | Liuzhou | 2016 | 44 | NA | 66 | NA | 2018 |
| 261 | China | Suining | 2016 | 44 | NA | 68 | NA | 2018 |
| 262 | China | Xiangxi | 2016 | 44 | NA | 78 | NA | 2018 |
| 263 | China | Yingkou | 2016 | 44 | NA | 73 | NA | 2018 |
| 264 | China | Yiyang | 2016 | 44 | NA | 82 | NA | 2018 |
| 265 | China | Zunyi | 2016 | 44 | NA | 69 | NA | 2018 |
| 266 | India | Hyderabad | 2016 | 44 | >75% | 84 | NA | 2018 |
| 267 | Iran (Islamic Republic of) | Dehloran | 2016 | 44 | NA | 100 | NA | 2018 |
| 268 | Iran (Islamic Republic of) | Mehran | 2016 | 44 | NA | 102 | NA | 2018 |
| 269 | China | Nanchang | 2016 | 43 | NA | 92 | NA | 2018 |
| 270 | China | Quzhou | 2016 | 43 | NA | 92 | NA | 2018 |
| 271 | China | Taizhou | 2014 | 43 | NA | 71 | NA | 2018 |
| 272 | China | Yancheng | 2016 | 43 | NA | 92 | NA | 2018 |
| 273 | China | Dandong | 2016 | 42 | NA | 71 | NA | 2018 |
| 274 | China | Datong | 2014 | 42 | NA | 63 | NA | 2016 |
| 275 | China | Huaihua | 2016 | 42 | NA | 79 | NA | 2018 |
| 276 | China | Jilin | 2016 | 42 | NA | 69 | NA | 2018 |
| 277 | China | Tianshui | 2016 | 42 | NA | 80 | NA | 2018 |
| 278 | China | Tonghua | 2016 | 42 | NA | 76 | NA | 2018 |
| 279 | China | Ya'an | 2016 | 42 | NA | 68 | NA | 2018 |
| 280 | Iran (Islamic Republic of) | Kangan | 2016 | 42 | NA | 96 | NA | 2018 |
| 281 | Viet Nam | Ho Chi Minh City | 2016 | 42 | >75% | 90 | NA | 2018 |
| 282 | Bahrain | Hidd | 2012 | 41 | NA | 178 | NA | 2016 |
| 283 | Chile | Valdivia | 2016 | 41 | NA | 67 | NA | 2018 |
| 284 | China | Chenzhou | 2016 | 41 | NA | 70 | NA | 2018 |
| 285 | China | Hohhot | 2016 | 41 | NA | 88 | NA | 2018 |
| 286 | China | Pingliang | 2016 | 41 | NA | 80 | NA | 2018 |
| 287 | China | Shangrao | 2016 | 41 | NA | 70 | NA | 2018 |
| 288 | China | Yingtan | 2016 | 41 | NA | 59 | NA | 2018 |
| 289 | Colombia | La Estrella | 2014 | 41 | NA | 47 | NA | 2016 |
| 290 | Guatemala | Guatemala | 2013 | 41 | NA | 56 | NA | 2016 |
| 291 | Croatia | Slavonski Brod | 2016 | 41 | >75% | 63 | NA | 2018 |
| 292 | India | Navi Mumbai | 2016 | 41 | NA | 67 | NA | 2018 |
| 293 | India | Udaipur | 2016 | 41 | NA | 98 | NA | 2018 |
| 294 | South Africa | Johannesburg | 2011 | 41 | NA | 85 | NA | 2016 |
| 295 | China | Chengde | 2016 | 40 | NA | 81 | NA | 2018 |
| 296 | China | Panjin | 2016 | 40 | NA | 67 | NA | 2018 |
| 297 | India | Gauhati | 2016 | 40 | NA | 81 | NA | 2018 |
| 298 | The former Yugoslav Republic of Macedonia | Skopje | 2016 | 40 | >75% | 69 | >75% | 2018 |
| 299 | China | Baiyin | 2016 | 39 | NA | 95 | NA | 2018 |
| 300 | China | Dalian | 2016 | 39 | NA | 67 | NA | 2018 |
| 301 | China | Jieyang | 2016 | 39 | NA | 60 | NA | 2018 |
| 302 | China | Liupanshui | 2016 | 39 | NA | 68 | NA | 2018 |
| 303 | China | Ningbo | 2016 | 39 | NA | 62 | NA | 2018 |
| 304 | China | Shangluo | 2016 | 39 | NA | 72 | NA | 2018 |
| 305 | China | Wuwei | 2016 | 39 | NA | 97 | NA | 2018 |
| 306 | China | Yantai | 2016 | 39 | NA | 76 | NA | 2018 |
| 307 | China | Zhaoyang | 2016 | 39 | NA | 69 | NA | 2018 |
| 308 | India | Solapur | 2016 | 39 | >75% | 71 | NA | 2018 |
| 309 | Iran (Islamic Republic of) | shahinshahr | 2016 | 39 | NA | 89 | NA | 2018 |
| 310 | Peru | Lima | 2016 | 39 | 50% -< 75% | 58 | >75% | 2018 |
| 311 | Turkey | Amasya | 2016 | 39 | >75% | 57 | >75% | 2018 |
| 312 | China | Foshan | 2016 | 38 | NA | 55 | NA | 2018 |
| 313 | China | Gannan | 2016 | 38 | NA | 70 | NA | 2018 |
| 314 | China | Guigang | 2016 | 38 | NA | 55 | NA | 2018 |
| 315 | China | Rongcheng | 2014 | 38 | NA | 57 | NA | 2016 |
| 316 | China | Wenzhou | 2016 | 38 | NA | 81 | NA | 2018 |
| 317 | China | Zhangye | 2016 | 38 | NA | 90 | NA | 2018 |
| 318 | India | Jabalpur | 2016 | 38 | NA | 79 | NA | 2018 |
| 319 | Iran (Islamic Republic of) | Shahre Ghods | 2016 | 38 | NA | 87 | NA | 2018 |
| 320 | Iran (Islamic Republic of) | Shahryar | 2016 | 38 | NA | 87 | NA | 2018 |
| 321 | China | Chifeng | 2016 | 37 | NA | 76 | NA | 2018 |
| 322 | China | Guiyang | 2016 | 37 | NA | 63 | NA | 2018 |
| 323 | China | Guoluo | 2016 | 37 | NA | 72 | NA | 2018 |
| 324 | China | Mudanjiang | 2016 | 37 | NA | 68 | NA | 2018 |
| 325 | China | Qinzhou | 2016 | 37 | NA | 79 | NA | 2018 |
| 326 | China | Zhaoqing | 2016 | 37 | NA | 55 | NA | 2018 |
| 327 | Iran (Islamic Republic of) | Ievan | 2016 | 37 | NA | 85 | NA | 2018 |
| 328 | Iran (Islamic Republic of) | Sari | 2012 | 37 | NA | 90 | NA | 2016 |
| 329 | Madagascar | Antananarivo | 2008 | 37 | NA | 60 | NA | 2016 |
| 330 | China | Dingxi | 2016 | 36 | NA | 75 | NA | 2018 |
| 331 | China | Guangzhou | 2016 | 36 | NA | 56 | NA | 2018 |
| 332 | China | Nanning | 2016 | 36 | NA | 62 | NA | 2018 |
| 333 | China | Qingyuan | 2016 | 36 | NA | 52 | NA | 2018 |
| 334 | China | Qiqihar | 2016 | 36 | NA | 61 | NA | 2018 |
| 335 | China | Taizhou(Zhejiang Province) | 2016 | 36 | NA | 77 | NA | 2018 |
| 336 | Colombia | Medellin | 2015 | 36 | >75% | 60 | >75% | 2018 |
| 337 | Iran (Islamic Republic of) | Varamin | 2016 | 36 | NA | 83 | NA | 2018 |
| 338 | Iran (Islamic Republic of) | Yazd | 2016 | 36 | NA | 83 | NA | 2018 |
| 339 | Mexico | Monterrey | 2011 | 36 | NA | 86 | NA | 2016 |
| 340 | Pakistan | Faisalabad | 2013 | 36 | >75% | 148 | >75% | 2018 |
| 341 | Chile | El Bosque | 2016 | 35 | NA | 67 | NA | 2018 |
| 342 | Chile | Temuco | 2016 | 35 | NA | 52 | NA | 2018 |
| 343 | China | Dongguan | 2016 | 35 | NA | 49 | NA | 2018 |
| 344 | China | Songyuan | 2016 | 35 | NA | 69 | NA | 2018 |
| 345 | China | Weihai | 2016 | 35 | NA | 63 | NA | 2018 |
| 346 | Cuba | La Habana | 2015 | 35 | 50% -< 75% | 75 | NA | 2018 |
| 347 | Guatemala | Guatemala City | 2014 | 35 | NA | 47 | NA | 2018 |
| 348 | India | Trivendrum | 2016 | 35 | NA | 48 | NA | 2018 |
| 349 | Iran (Islamic Republic of) | Ghom | 2016 | 35 | NA | 81 | NA | 2018 |
| 350 | China | Hechi | 2016 | 34 | NA | 55 | NA | 2018 |
| 351 | China | Jiangmen | 2016 | 34 | NA | 55 | NA | 2018 |
| 352 | China | Nantou | 2014 | 34 | NA | 51 | NA | 2016 |
| 353 | China | Shuangyashan | 2016 | 34 | NA | 55 | NA | 2018 |
| 354 | China | Yunfu | 2016 | 34 | NA | 51 | NA | 2018 |
| 355 | India | Vizag | 2016 | 34 | NA | 76 | NA | 2018 |
| 356 | Iran (Islamic Republic of) | Ilam | 2016 | 34 | NA | 79 | NA | 2018 |
| 357 | Philippines | City Of Malabon | 2015 | 34 | NA | 73 | NA | 2018 |
| 358 | Philippines | Pasig | 2016 | 34 | NA | 73 | NA | 2018 |
| 359 | South Africa | Vereeniging | 2014 | 34 | NA | 58 | NA | 2016 |
| 360 | Chile | Cerro Navia | 2016 | 33 | NA | 62 | NA | 2018 |
| 361 | Chile | Los Ángeles | 2016 | 33 | NA | 57 | NA | 2018 |
| 362 | China | Chaozhou | 2016 | 33 | NA | 51 | NA | 2018 |
| 363 | China | Jiayuguan | 2016 | 33 | NA | 98 | NA | 2018 |
| 364 | China | Lishui | 2016 | 33 | NA | 70 | NA | 2018 |
| 365 | China | Shaoguan | 2016 | 33 | NA | 51 | NA | 2018 |
| 366 | China | Zhangzhou | 2016 | 33 | NA | 65 | NA | 2018 |
| 367 | Indonesia | Bandung | 2014 | 33 | NA | 59 | NA | 2016 |
| 368 | India | Tezpur | 2016 | 33 | NA | 52 | NA | 2018 |
| 369 | Iran (Islamic Republic of) | Khoram abad | 2016 | 33 | NA | 75 | NA | 2018 |
| 370 | Iran (Islamic Republic of) | Pakdasht | 2016 | 33 | NA | 75 | NA | 2018 |
| 371 | Lebanon | Zahle | 2014 | 33 | NA | 40 | NA | 2016 |
| 372 | Mexico | Toluca | 2011 | 33 | NA | 80 | NA | 2016 |
| 373 | Poland | Godow | 2016 | 33 | >75% | 43 | >75% | 2018 |
| 374 | Poland | Pleszewski | 2016 | 33 | >75% | 38 | >75% | 2018 |
| 375 | Chile | Linares | 2016 | 32 | NA | 65 | NA | 2018 |
| 376 | Chile | Pudahuel | 2016 | 32 | NA | 69 | NA | 2018 |
| 377 | China | Changhua | 2014 | 32 | NA | 48 | NA | 2016 |
| 378 | China | Haibei | 2016 | 32 | NA | 76 | NA | 2018 |
| 379 | China | Heyuan | 2016 | 32 | NA | 46 | NA | 2018 |
| 380 | China | Jinchang | 2016 | 32 | NA | 104 | NA | 2018 |
| 381 | China | Kinmen | 2014 | 32 | NA | 48 | NA | 2016 |
| 382 | China | Panzhihua | 2016 | 32 | NA | 65 | NA | 2018 |
| 383 | China | Qujing | 2014 | 32 | NA | 48 | NA | 2016 |
| 384 | China | Zhangjiakou | 2016 | 32 | NA | 68 | NA | 2018 |
| 385 | Czech Republic | Dolni Lutyne | 2016 | 32 | >75% | 40 | >75% | 2018 |
| 386 | Czech Republic | Ostrava | 2013 | 32 | NA | 41 | NA | 2016 |
| 387 | Iran (Islamic Republic of) | Abadan | 2016 | 32 | NA | 74 | NA | 2018 |
| 388 | Iran (Islamic Republic of) | Asad abad | 2016 | 32 | NA | 73 | NA | 2018 |
| 389 | Iran (Islamic Republic of) | Eslamshshr | 2016 | 32 | NA | 73 | NA | 2018 |
| 390 | Iran (Islamic Republic of) | Kermanshah | 2016 | 32 | NA | 73 | NA | 2018 |
| 391 | Iran (Islamic Republic of) | Savegbelagh | 2016 | 32 | NA | 72 | NA | 2018 |
| 392 | Republic of Korea | Jeollabuk Do | 2016 | 32 | NA | 51 | NA | 2018 |
| 393 | Lebanon | Beirut | 2014 | 32 | NA | 41 | NA | 2016 |
| 394 | Philippines | Caloocan City | 2015 | 32 | NA | 68 | NA | 2018 |
| 395 | Philippines | Pateros City | 2015 | 32 | NA | 68 | NA | 2018 |
| 396 | Poland | Gliwice | 2016 | 32 | >75% | 46 | >75% | 2018 |
| 397 | Turkey | Sakarya | 2016 | 32 | >75% | 60 | >75% | 2018 |
| 398 | Chile | Cerrillos | 2016 | 31 | NA | 66 | NA | 2018 |
| 399 | China | Chiayi | 2014 | 31 | NA | 46 | NA | 2016 |
| 400 | China | Hainan | 2016 | 31 | NA | 69 | NA | 2018 |
| 401 | China | Yanbian | 2016 | 31 | NA | 49 | NA | 2018 |
| 402 | China | Yangjiang | 2016 | 31 | NA | 44 | NA | 2018 |
| 403 | China | Yunlin | 2014 | 31 | NA | 46 | NA | 2016 |
| 404 | Czech Republic | Trinec | 2013 | 31 | NA | 35 | NA | 2016 |
| 405 | Iran (Islamic Republic of) | Arak | 2016 | 31 | NA | 71 | NA | 2018 |
| 406 | Iran (Islamic Republic of) | Esfahan | 2014 | 31 | NA | 72 | NA | 2018 |
| 407 | Iran (Islamic Republic of) | Nazarabad | 2016 | 31 | NA | 71 | NA | 2018 |
| 408 | Philippines | Marikina City | 2016 | 31 | NA | 66 | NA | 2018 |
| 409 | Poland | Krakow | 2016 | 31 | >75% | 42 | >75% | 2018 |
| 410 | Poland | Nowy Sacz | 2016 | 31 | >75% | 41 | >75% | 2018 |
| 411 | Turkey | Edirne | 2016 | 31 | >75% | 55 | >75% | 2018 |
| 412 | South Africa | Mpumalanga | 2013 | 31 | NA | 61 | NA | 2016 |
| 413 | South Africa | Sebokeng | 2014 | 31 | NA | 42 | NA | 2016 |
| 414 | Chile | Quilicura | 2015 | 30 | NA | 89 | NA | 2018 |
| 415 | China | Bijie | 2016 | 30 | NA | 44 | NA | 2018 |
| 416 | China | Kaohsiung | 2014 | 30 | NA | 46 | NA | 2016 |
| 417 | China | Karamay | 2016 | 30 | NA | 55 | NA | 2018 |
| 418 | China | Maoming | 2016 | 30 | NA | 47 | NA | 2018 |
| 419 | China | Shantou | 2016 | 30 | NA | 48 | NA | 2018 |
| 420 | China | Yuxi | 2014 | 30 | NA | 46 | NA | 2016 |
| 421 | China | Zhongshan | 2016 | 30 | NA | 44 | NA | 2018 |
| 422 | Colombia | Caldas | 2015 | 30 | >75% | 69 | >75% | 2018 |
| 423 | Costa Rica | Belen | 2013 | 30 | NA | 31 | NA | 2016 |
| 424 | Croatia | Velika Gorica | 2016 | 30 | >75% | 46 | NA | 2018 |
| 425 | Iran (Islamic Republic of) | Isfahan | 2016 | 30 | NA | 68 | NA | 2018 |
| 426 | Iran (Islamic Republic of) | Karaj | 2016 | 30 | NA | 68 | NA | 2018 |
| 427 | Iran (Islamic Republic of) | Mashhad | 2016 | 30 | NA | 69 | NA | 2018 |
| 428 | Italy | Padova | 2016 | 30 | >75% | 37 | >75% | 2018 |
| 429 | Lebanon | Saida | 2014 | 30 | NA | 37 | NA | 2016 |
| 430 | Poland | Katowice | 2016 | 30 | >75% | 41 | >75% | 2018 |
| 431 | Turkey | Corum | 2016 | 30 | >75% | 64 | >75% | 2018 |
| 432 | South Africa | Zamdela | 2014 | 30 | NA | 56 | NA | 2016 |
| 433 | Albania | Korce | 2016 | 29 | >75% | 40 | >75% | 2018 |
| 434 | Bulgaria | Pernik | 2014 | 29 | >75% | 44 | >75% | 2018 |
| 435 | Bulgaria | Plovdiv | 2015 | 29 | >75% | 41 | >75% | 2018 |
| 436 | Bosnia and Herzegovina | Gorazde | 2016 | 29 | >75% | 39 | >75% | 2018 |
| 437 | Chile | Independencia | 2016 | 29 | NA | 62 | NA | 2018 |
| 438 | Chile | La Florida | 2016 | 29 | NA | 65 | NA | 2018 |
| 439 | Chile | Santiago | 2016 | 29 | NA | 67 | NA | 2018 |
| 440 | China | Fangchenggang | 2016 | 29 | NA | 45 | NA | 2018 |
| 441 | China | Putian | 2016 | 29 | NA | 43 | NA | 2018 |
| 442 | China | Taichung | 2014 | 29 | NA | 44 | NA | 2016 |
| 443 | China | Tainan | 2014 | 29 | NA | 44 | NA | 2016 |
| 444 | Costa Rica | Heredia | 2013 | 29 | NA | 47 | NA | 2016 |
| 445 | Iran (Islamic Republic of) | Najafabad | 2016 | 29 | NA | 67 | NA | 2018 |
| 446 | Iran (Islamic Republic of) | Yasuj | 2016 | 29 | NA | 66 | NA | 2018 |
| 447 | Israel | Gvar'am | 2015 | 29 | >75% | 69 | NA | 2018 |
| 448 | Italy | Casirate D'adda | 2013 | 29 | NA | 37 | NA | 2016 |
| 449 | Italy | Monza | 2016 | 29 | >75% | 35 | >75% | 2018 |
| 450 | Morocco | Meknes | 2008 | 29 | NA | 47 | NA | 2016 |
| 451 | Philippines | Manila | 2016 | 29 | NA | 118 | NA | 2018 |
| 452 | Poland | Bochnia | 2016 | 29 | >75% | 35 | >75% | 2018 |
| 453 | Poland | Piotrkow Trybunalski | 2016 | 29 | >75% | 38 | >75% | 2018 |
| 454 | Poland | Zory | 2016 | 29 | >75% | 42 | >75% | 2018 |
| 455 | Chile | Curico | 2016 | 28 | NA | 47 | NA | 2018 |
| 456 | Chile | Rancagua | 2016 | 28 | NA | 68 | NA | 2018 |
| 457 | China | Eerduosi | 2014 | 28 | NA | 42 | NA | 2016 |
| 458 | China | Guangyuan | 2016 | 28 | NA | 70 | NA | 2018 |
| 459 | China | Huangshan | 2016 | 28 | NA | 45 | NA | 2018 |
| 460 | China | Jixi | 2016 | 28 | NA | 53 | NA | 2018 |
| 461 | China | Kunming | 2016 | 28 | NA | 55 | NA | 2018 |
| 462 | China | Lincang | 2016 | 28 | NA | 44 | NA | 2018 |
| 463 | China | Meizhou | 2016 | 28 | NA | 46 | NA | 2018 |
| 464 | China | Qiandongnan | 2016 | 28 | NA | 45 | NA | 2018 |
| 465 | China | Quanzhou | 2016 | 28 | NA | 48 | NA | 2018 |
| 466 | China | Xiamen | 2016 | 28 | NA | 47 | NA | 2018 |
| 467 | Iran (Islamic Republic of) | Boujnord | 2016 | 28 | NA | 64 | NA | 2018 |
| 468 | Iran (Islamic Republic of) | KhominShahr | 2016 | 28 | NA | 64 | NA | 2018 |
| 469 | Iran (Islamic Republic of) | Mobarake | 2016 | 28 | NA | 65 | NA | 2018 |
| 470 | Iran (Islamic Republic of) | Robatkarim | 2016 | 28 | NA | 63 | NA | 2018 |
| 471 | Iran (Islamic Republic of) | Sanndaj | 2016 | 28 | NA | 64 | NA | 2018 |
| 472 | Iran (Islamic Republic of) | Tehran | 2016 | 28 | NA | 72 | NA | 2018 |
| 473 | Israel | Jerusalem | 2015 | 28 | >75% | 66 | >75% | 2018 |
| 474 | Italy | Soresina | 2016 | 28 | >75% | 39 | >75% | 2018 |
| 475 | Republic of Korea | Gangwon-Do | 2016 | 28 | NA | 47 | NA | 2018 |
| 476 | Republic of Korea | Gyeonggi-Do | 2016 | 28 | NA | 53 | NA | 2018 |
| 477 | Poland | Bielsko-Biala | 2016 | 28 | >75% | 36 | >75% | 2018 |
| 478 | Poland | Tarnowskie Gory | 2016 | 28 | >75% | 38 | >75% | 2018 |
| 479 | Thailand | Bangkok | 2015 | 28 | NA | 41 | NA | 2018 |
| 480 | Bulgaria | Ruse | 2015 | 27 | >75% | 41 | >75% | 2018 |
| 481 | Chile | Puerto Montt | 2016 | 27 | NA | 55 | NA | 2018 |
| 482 | China | Anshun | 2016 | 27 | NA | 38 | NA | 2018 |
| 483 | China | Fuzhou | 2016 | 27 | NA | 50 | NA | 2018 |
| 484 | China | Haixi | 2016 | 27 | NA | 65 | NA | 2018 |
| 485 | China | Huizhou | 2016 | 27 | NA | 45 | NA | 2018 |
| 486 | China | Ningde | 2016 | 27 | NA | 46 | NA | 2018 |
| 487 | China | Shenzhen | 2016 | 27 | NA | 42 | NA | 2018 |
| 488 | Czech Republic | Karvina | 2016 | 27 | >75% | 34 | >75% | 2018 |
| 489 | India | Aizawl | 2016 | 27 | NA | 44 | NA | 2018 |
| 490 | Iran (Islamic Republic of) | Hamadan | 2016 | 27 | NA | 61 | NA | 2018 |
| 491 | Iran (Islamic Republic of) | Pole Dokhtar | 2016 | 27 | NA | 62 | NA | 2018 |
| 492 | Israel | Bnei Brak | 2015 | 27 | >75% | 65 | NA | 2018 |
| 493 | Italy | Cassino | 2016 | 27 | >75% | 35 | >75% | 2018 |
| 494 | Italy | Dalmine | 2016 | 27 | >75% | 31 | >75% | 2018 |
| 495 | Italy | Milano | 2016 | 27 | >75% | 36 | >75% | 2018 |
| 496 | Republic of Korea | Chungcheongnam-Do | 2016 | 27 | NA | 48 | NA | 2018 |
| 497 | Republic of Korea | Gyeongsangbuk-Do | 2016 | 27 | NA | 40 | NA | 2018 |
| 498 | Poland | Chelm | 2015 | 27 | >75% | 35 | >75% | 2018 |
| 499 | Poland | Kalisz | 2016 | 27 | >75% | 33 | >75% | 2018 |
References
- ↑ WHO – Air Quality Guideline – Page 11
- ↑ WHO Global Ambient Air Quality Database (update 2018)
- ↑ "The most polluted cities in the world, ranked". 2017-02-03. Retrieved 2017-04-22.
- ↑ "The most polluted city in the world isn't Beijing or Delhi". Washington Post. Retrieved 2017-04-22.
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