SmogRank / History / January 2023

Most polluted cities, January 2023

849 cities ranked by their average PM2.5 over the 31 days. A city needs measurements on 70% of the days to be ranked.

February 2023 →
#City µg/m³
1Lahore low-cost sensors Punjab, Pakistan
230.3
2Dhaka low-cost sensors Dhaka Division, Bangladesh
225.8
3Delhi Delhi, India
192.0
4N'Djamena N’Djaména, Chad
172.7
5Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
127.3
6Dushanbe Dushanbe, Tajikistan
126.6
7Bishkek low-cost sensors Bishkek, Kyrgyzstan
116.5
8Abuja low-cost sensors FCT, Nigeria
116.4
9Mumbai Maharashtra, India
101.6
10Islamabad low-cost sensors Islamabad, Pakistan
96.6
11Salor Tashkent Region, Uzbekistan
92.4
12Almaty low-cost sensors Almaty, Kazakhstan
84.0
13Kathmandu low-cost sensors Bagmati Province, Nepal
81.7
14Hanoi Hanoi, Vietnam
80.9
15Alexandria Alexandria, Egypt
74.0
16Hyderabad Telangana, India
73.6
17Baghdad Baghdad, Iraq
69.1
18Kampala low-cost sensors Central Region, Uganda
61.2
19Banja Luka Srpska, Bosnia and Herzegovina
59.3
20Bamako Bamako, Mali
59.1
21Accra low-cost sensors Greater Accra, Ghana
59.0
22Kigali Kigali, Rwanda
56.6
23Şabāḩ as Sālim Mubārak al Kabīr, Kuwait
53.2
24Pristina Pristina, Kosovo
48.1
25Shanghai Shanghai, China
43.8
26Ashgabat Ashgabat, Turkmenistan
38.9
27Colombo Western Province, Sri Lanka
36.5
28Volos Thessaly, Greece
35.1
29Celaya Guanajuato, Mexico
34.6
30Villa Poeta José Gálvez Barrenechea Lima region, Peru
34.1
31Botevgrad low-cost sensors Sofia, Bulgaria
31.7
32Baku Baki, Azerbaijan
31.1
33Lima Lima Province, Peru
30.1
34Jastrzębie Zdrój Silesia, Poland
29.7
35Guangzhou Guangdong, China
29.0
36Chisinau Chișinău Municipality, Moldova
28.7
36Wan Chai Wan Chai, Hong Kong
28.7
38Ecatepec de Morelos México, Mexico
27.6
39Badger Alaska, United States
27.1
40Beijing Beijing, China
26.7
41Sevlievo low-cost sensors Gabrovo, Bulgaria
26.6
41Tin Shui Wai Yuen Long, Hong Kong
26.6
41Racibórz Silesia, Poland
26.6
44Haskovo low-cost sensors Haskovo, Bulgaria
26.5
45Lublin Lublin, Poland
26.1
46Dimitrovgrad low-cost sensors Haskovo, Bulgaria
25.7
47Pátra West Greece, Greece
25.3
47Mong Kok Yau Tsim Mong District, Hong Kong
25.3
49Mexico City Mexico City, Mexico
25.0
50Fanling North District, Hong Kong
24.5
51Szamotuły Greater Poland, Poland
24.3
52Łask Łódź Voivodeship, Poland
24.2
53Craiova Dolj, Romania
23.9
54Kazincbarcika Borsod-Abaúj-Zemplén, Hungary
23.8
55Lębork Pomerania, Poland
23.7
55Bielsko-Biala Silesia, Poland
23.7
57Kraków Lesser Poland, Poland
23.3
58Żyrardów Mazovia, Poland
23.1
59Tai Po Tai Po, Hong Kong
23.0
59Toruń Kujawsko-Pomorskie, Poland
23.0
61Thessaloníki Central Macedonia, Greece
22.8
61Kwai Chung Kwai Tsing District, Hong Kong
22.8
61Włocławek Kujawsko-Pomorskie, Poland
22.8
64Ružomberok Žilina Region, Slovakia
22.6
64León de los Aldama Guanajuato, Mexico
22.6
66Katowice Silesia, Poland
22.3
67Radom Mazovia, Poland
21.9
67Kutno Łódź Voivodeship, Poland
21.9
69Khartoum Khartoum, Sudan
21.8
69Starachowice Świętokrzyskie, Poland
21.8
69Otwock Mazovia, Poland
21.8
72Kłodzko Lower Silesia, Poland
21.5
73Spišská Nová Ves Košice Region, Slovakia
21.4
74Sha Tin Sha Tin, Hong Kong
21.3
75Cluj-Napoca Cluj County, Romania
21.2
75Wrocław Lower Silesia, Poland
21.2
77Krapkowice Opole Voivodeship, Poland
21.1
78Sau Mau Ping Kwun Tong District, Hong Kong
21.0
79San Tung Chung Hang Islands, Hong Kong
20.5
80Acharnés Attica, Greece
20.3
81Aberdeen Southern District, Hong Kong
20.0
81Meylan Auvergne-Rhône-Alpes, France
20.0
81Zgierz Łódź Voivodeship, Poland
20.0
81Płock Mazovia, Poland
20.0
85Nisko Subcarpathia, Poland
19.7
86Ciudad Juárez Chihuahua, Mexico
19.6
87Rzeszów Subcarpathia, Poland
19.2
88Poznań Greater Poland, Poland
19.1
89Wawer Mazovia, Poland
18.7
89Tarnów Lesser Poland, Poland
18.7
91Warsaw Mazovia, Poland
18.5
92Abasolo Guanajuato, Mexico
18.4
93Siedlce Mazovia, Poland
18.3
94Asprópyrgos Attica, Greece
18.2
95Gdynia Pomerania, Poland
18.1
96Pruszków Mazovia, Poland
18.0
96Jelenia Góra Lower Silesia, Poland
18.0
98Kętrzyn Warmia-Masuria, Poland
17.9
99Jeddah Mecca Region, Saudi Arabia
17.8
99Augustów Podlasie, Poland
17.8
99Zielona Góra Lubusz, Poland
17.8
102Ostrava Moravian-Silesian Region, Czechia
17.7
103Piraeus Attica, Greece
17.4
103Žilina Žilina Region, Slovakia
17.4
105Ełk Warmia-Masuria, Poland
17.3
105Opole Opole Voivodeship, Poland
17.3
107Kędzierzyn-Koźle Opole Voivodeship, Poland
17.2
108Grenoble Auvergne-Rhône-Alpes, France
17.1
109Nairobi Nairobi County, Kenya
17.0
109Jarosław Subcarpathia, Poland
17.0
109Grajewo Podlasie, Poland
17.0
109Zvolen Banská Bystrica Region, Slovakia
17.0
113Mielec Subcarpathia, Poland
16.8
113Kościerzyna Pomerania, Poland
16.8
115Tijuana Baja California, Mexico
16.7
115San Francisco De Borja Lima region, Peru
16.7
117Iaşi Iași County, Romania
16.5
117Gabrovo low-cost sensors Gabrovo, Bulgaria
16.5
119Calexico California, United States
16.2
119Santa Anita - Los Ficus Lima region, Peru
16.2
121Chambéry Auvergne-Rhône-Alpes, France
15.8
122Zamość Lublin, Poland
15.6
123Fairbanks Alaska, United States
15.5
124Győr Győr-Moson-Sopron, Hungary
15.4
125Drammen Buskerud, Norway
15.3
126Białystok Podlasie, Poland
15.2
126Martin Žilina Region, Slovakia
15.2
128Humenné Prešov Region, Slovakia
15.1
128Senica Trnava Region, Slovakia
15.1
128Gdańsk Pomerania, Poland
15.1
131Antananarivo Analamanga, Madagascar
15.0
131Douai Hauts-de-France, France
15.0
133Suwałki Podlasie, Poland
14.9
133West Fargo North Dakota, United States
14.9
135Eindhoven North Brabant, The Netherlands
14.8
136Ústí nad Labem Ústí nad Labem Region, Czechia
14.7
137Bydgoszcz Kujawsko-Pomorskie, Poland
14.6
137Saint Paul Minnesota, United States
14.6
139Olsztyn Warmia-Masuria, Poland
14.5
139Gorzów Wielkopolski Lubusz, Poland
14.5
139Edmonton Alberta, Canada
14.5
142Łódź Łódź Voivodeship, Poland
14.4
142Yakima Washington, United States
14.4
144Dunaújváros Fejér, Hungary
14.3
145Albertville Auvergne-Rhône-Alpes, France
14.2
145Czechowice-Dziedzice Silesia, Poland
14.2
145Bismarck North Dakota, United States
14.2
148Przemyśl Subcarpathia, Poland
14.1
148Algiers Algiers, Algeria
14.1
148Sunnyside Washington, United States
14.1
151Krosno Subcarpathia, Poland
14.0
151Pécs Baranya, Hungary
14.0
153Annemasse Auvergne-Rhône-Alpes, France
13.9
153Prievidza Trenčín Region, Slovakia
13.9
153Minneapolis Minnesota, United States
13.9
156Banská Bystrica Banská Bystrica Region, Slovakia
13.8
156Sopot Pomerania, Poland
13.8
156Shakopee Minnesota, United States
13.8
156Grande Prairie Alberta, Canada
13.8
160Jasło Subcarpathia, Poland
13.7
160Romans-sur-Isère Auvergne-Rhône-Alpes, France
13.7
160Nitra Nitra Region, Slovakia
13.7
160Szczecin West Pomerania, Poland
13.7
160Phoenix Arizona, United States
13.7
165Trenčín Trenčín Region, Slovakia
13.6
166Trnava Trnava Region, Slovakia
13.4
166Bakersfield California, United States
13.4
166Hanford California, United States
13.4
169Brno South Moravian, Czechia
13.3
170Dax New Aquitaine, France
13.2
170Veszprém Veszprém, Hungary
13.2
170Thornton Colorado, United States
13.2
173Fort Lauderdale Florida, United States
13.1
173Apple Valley Minnesota, United States
13.1
173Fresno California, United States
13.1
176Meyzieu Auvergne-Rhône-Alpes, France
13.0
176Pennsauken New Jersey, United States
13.0
176Dearborn Michigan, United States
13.0
176Kalamazoo Michigan, United States
13.0
180Partizánske Trenčín Region, Slovakia
12.9
181Butte Montana, United States
12.7
182Indianapolis Indiana, United States
12.6
182Nogales Arizona, United States
12.6
184Tilburg North Brabant, The Netherlands
12.5
184Elbląg Warmia-Masuria, Poland
12.5
184Granite City Illinois, United States
12.5
187Paris Île-de-France, France
12.4
187Calumet City Illinois, United States
12.4
189Bratislava Bratislava Region, Slovakia
12.3
189Detroit Michigan, United States
12.3
191Clinton Iowa, United States
12.2
192Derry Northern Ireland, United Kingdom
12.0
192Lyon Auvergne-Rhône-Alpes, France
12.0
192Rochester Minnesota, United States
12.0
192Cleveland Ohio, United States
12.0
192Lancaster Pennsylvania, United States
12.0
192Visalia California, United States
12.0
198Valence Auvergne-Rhône-Alpes, France
11.9
198Pau New Aquitaine, France
11.9
198Grand Rapids Michigan, United States
11.9

Top 200 of 849 shown.

Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data