SmogRank / History / October 2024

Most polluted cities, October 2024

1,561 cities ranked by their average PM2.5 over the 31 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³
1	Lahore low-cost sensors Punjab, Pakistan	151.7
2	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	98.0
3	Kampala low-cost sensors Central Region, Uganda	95.4
4	Delhi Delhi, India	93.6
5	Kinshasa low-cost sensors Kinshasa, Democratic Republic of the Congo	79.3
6	Baghdad Baghdad, Iraq	78.4
7	Dhaka low-cost sensors Dhaka Division, Bangladesh	75.6
8	Beijing Beijing, China	60.4
9	Hanoi Hanoi, Vietnam	55.0
10	Islamabad low-cost sensors Islamabad, Pakistan	54.3
11	Kolkata West Bengal, India	47.3
12	Cairo Cairo, Egypt	43.9
13	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	42.2
14	Mumbai Maharashtra, India	42.0
15	Santa Anita - Los Ficus Lima region, Peru	39.0
16	N'Djamena N’Djaména, Chad	38.7
17	Kathmandu low-cost sensors Bagmati Province, Nepal	38.6
18	Jakarta Jakarta, Indonesia	38.5
18	Banja Luka Srpska, Bosnia and Herzegovina	38.5
20	Novi Pazar Central Serbia, Serbia	37.8
20	Hyderabad Telangana, India	37.8
22	Dushanbe Dushanbe, Tajikistan	37.7
23	Antananarivo Analamanga, Madagascar	35.8
24	Užice Central Serbia, Serbia	34.4
25	Lima Lima Province, Peru	34.3
26	Valjevo Central Serbia, Serbia	33.9
27	Kraljevo Central Serbia, Serbia	33.2
28	Salor Tashkent Region, Uzbekistan	32.6
29	Lazarevac Central Serbia, Serbia	30.9
30	Chennai Tamil Nadu, India	30.8
31	Smederevo Central Serbia, Serbia	30.3
32	Kigali Kigali, Rwanda	29.6
33	Ashgabat Ashgabat, Turkmenistan	29.3
34	Čačak Central Serbia, Serbia	28.0
35	Debrecen low-cost sensors Hajdú-Bihar, Hungary	27.2
35	Obrenovac Central Serbia, Serbia	27.2
37	Niš Central Serbia, Serbia	27.0
38	Guangzhou Guangdong, China	26.9
39	Zemun Central Serbia, Serbia	25.5
39	Bangkok low-cost sensors Bangkok, Thailand	25.5
41	Ćuprija Central Serbia, Serbia	25.2
41	Vereeniging low-cost sensors Gauteng, South Africa	25.2
41	Wan Chai Wan Chai, Hong Kong	25.2
44	Jacobo Hunter Arequipa, Peru	24.9
45	Kragujevac Central Serbia, Serbia	24.7
46	Racibórz Silesia, Poland	24.0
47	Chiang Mai low-cost sensors Chiang Mai, Thailand	23.9
48	Skarżysko-Kamienna Świętokrzyskie, Poland	23.8
49	Tha Bo Nong Khai, Thailand	23.6
50	Jastrzębie Zdrój Silesia, Poland	23.1
51	Zgierz Łódź Voivodeship, Poland	23.0
51	Villa Poeta José Gálvez Barrenechea Lima region, Peru	23.0
53	Sheridan Wyoming, United States	22.9
54	San Francisco De Borja Lima region, Peru	22.8
55	Kotō Kumamoto, Japan	22.6
56	Shanghai Shanghai, China	22.5
56	Ulan Bator Ulaanbaatar, Mongolia	22.5
58	Otwock Mazovia, Poland	22.1
58	Astana Astana, Kazakhstan	22.1
60	Kielce Świętokrzyskie, Poland	21.9
60	Tuen Mun Tuen Mun, Hong Kong	21.9
60	Włocławek Kujawsko-Pomorskie, Poland	21.9
60	Czechowice-Dziedzice Silesia, Poland	21.9
64	Lublin Lublin, Poland	21.8
65	Sarajevo Federation of B&H, Bosnia and Herzegovina	21.7
66	Nyíregyháza Szabolcs-Szatmár-Bereg, Hungary	21.6
66	Istanbul low-cost sensors Istanbul, Turkey	21.6
68	Żywiec Silesia, Poland	21.5
69	Pirot Central Serbia, Serbia	21.3
69	Bielsko-Biala Silesia, Poland	21.3
69	Futog Vojvodina, Serbia	21.3
72	Addis Ababa Addis Ababa, Ethiopia	21.1
73	Novi Sad Vojvodina, Serbia	20.9
74	Belgrade Central Serbia, Serbia	20.5
74	Fengshan Takao, Taiwan	20.5
76	Miskolc Borsod-Abaúj-Zemplén, Hungary	20.4
77	Kutno Łódź Voivodeship, Poland	20.1
77	Kalisz Greater Poland, Poland	20.1
79	Callao Callao, Peru	20.0
80	San Clemente Ica, Peru	19.8
81	Działdowo Warmia-Masuria, Poland	19.7
81	Asunción low-cost sensors Asuncion, Paraguay	19.7
83	Starachowice Świętokrzyskie, Poland	19.5
83	Kościan Greater Poland, Poland	19.5
85	Łuków Lublin, Poland	19.4
85	Pančevo Vojvodina, Serbia	19.4
85	Birmingham Alabama, United States	19.4
88	Nisko Subcarpathia, Poland	19.3
89	Fanling North District, Hong Kong	19.1
89	Katowice Silesia, Poland	19.1
91	Tin Shui Wai Yuen Long, Hong Kong	18.7
92	Pruszków Mazovia, Poland	18.6
92	Sremčica Central Serbia, Serbia	18.6
94	Baku Baki, Azerbaijan	18.4
94	Legionowo Mazovia, Poland	18.4
96	Przemyśl Subcarpathia, Poland	18.3
96	Almaty low-cost sensors Almaty, Kazakhstan	18.3
98	Łask Łódź Voivodeship, Poland	18.2
99	Radom Mazovia, Poland	18.1
99	San Tung Chung Hang Islands, Hong Kong	18.1
101	Jurupa Valley California, United States	18.0
102	Jurong West Singapore	17.9
102	Ang Mo Kio New Town Singapore	17.9
102	Medina Estates low-cost sensors Greater Accra, Ghana	17.9
105	Zamość Lublin, Poland	17.8
105	Mong Kok Yau Tsim Mong District, Hong Kong	17.8
107	Tijuana Baja California, Mexico	17.7
108	Poznań Greater Poland, Poland	17.5
109	Augustów Podlasie, Poland	17.4
109	Radomsko Łódź Voivodeship, Poland	17.4
109	Kraków Lesser Poland, Poland	17.4
112	Tai Po Tai Po, Hong Kong	17.2
112	Bartlett Tennessee, United States	17.2
114	Żyrardów Mazovia, Poland	17.1
115	Konstancin-Jeziorna Mazovia, Poland	17.0
115	Kłodzko Lower Silesia, Poland	17.0
115	Silao de la Victoria Guanajuato, Mexico	17.0
118	Chocope La Libertad, Peru	16.9
118	Los Angeles California, United States	16.9
120	Yongkang Taiwan, Taiwan	16.8
120	Kaohsiung Takao, Taiwan	16.8
122	Xinying Taiwan, Taiwan	16.7
123	Yerevan low-cost sensors Yerevan, Armenia	16.5
124	Kwai Chung Kwai Tsing District, Hong Kong	16.4
124	Bydgoszcz Kujawsko-Pomorskie, Poland	16.4
126	Zhushan Taiwan, Taiwan	16.3
126	Łódź Łódź Voivodeship, Poland	16.3
126	León de los Aldama Guanajuato, Mexico	16.3
129	Wawer Mazovia, Poland	16.2
129	Warsaw Mazovia, Poland	16.2
129	Tainan Taiwan, Taiwan	16.2
129	Erlun Taiwan, Taiwan	16.2
133	Zielona Góra Lubusz, Poland	16.1
133	Kędzierzyn-Koźle Opole Voivodeship, Poland	16.1
135	Jarosław Subcarpathia, Poland	16.0
135	Chaozhou Taiwan, Taiwan	16.0
135	Tsuen Wan Tsuen Wan, Hong Kong	16.0
135	Visalia California, United States	16.0
139	Chiayi City Taiwan, Taiwan	15.9
139	Little Rock Arkansas, United States	15.9
141	Aberdeen Southern District, Hong Kong	15.8
141	Náchod Hradec Králové Region, Czechia	15.8
141	Hernando Mississippi, United States	15.8
144	Dębica Subcarpathia, Poland	15.7
144	Fontana California, United States	15.7
146	Kościerzyna Pomerania, Poland	15.5
147	Grajewo Podlasie, Poland	15.4
147	Szczecin West Pomerania, Poland	15.4
147	Yauri Cuzco Department, Peru	15.4
150	Sham Shui Po Sham Shui Po District, Hong Kong	15.3
150	Opole Opole Voivodeship, Poland	15.3
150	Riverside California, United States	15.3
153	Pułtusk Mazovia, Poland	15.2
154	Douliu Taiwan, Taiwan	15.1
154	Woodlands Singapore	15.1
154	Hawthorne low-cost sensors California, United States	15.1
157	Wrocław Lower Silesia, Poland	14.9
157	Elbląg Warmia-Masuria, Poland	14.9
157	Augusta Georgia, United States	14.9
157	Columbus Ohio, United States	14.9
161	Victoria Central and Western, Hong Kong	14.8
161	Gorzów Wielkopolski Lubusz, Poland	14.8
163	Puli Taiwan, Taiwan	14.7
163	Bogotá Bogota D.C., Colombia	14.7
165	Maputo Maputo City, Mozambique	14.6
165	Sau Mau Ping Kwun Tong District, Hong Kong	14.6
165	Inglewood low-cost sensors California, United States	14.6
168	Rzeszów Subcarpathia, Poland	14.5
169	Płock Mazovia, Poland	14.4
169	Burbank California, United States	14.4
169	El Paso Texas, United States	14.4
172	Olsztyn Warmia-Masuria, Poland	14.3
173	Toruń Kujawsko-Pomorskie, Poland	14.1
173	Carson low-cost sensors California, United States	14.1
173	Fresno California, United States	14.1
176	Jelenia Góra Lower Silesia, Poland	13.9
176	Gdynia Pomerania, Poland	13.9
178	Białystok Podlasie, Poland	13.8
178	Quezon City low-cost sensors National Capital Region, Philippines	13.8
178	Lagos low-cost sensors Lagos, Nigeria	13.8
178	Irapuato Guanajuato, Mexico	13.8
182	Hanford California, United States	13.7
183	Nantou Taiwan, Taiwan	13.6
183	Sha Tin Sha Tin, Hong Kong	13.6
183	Indianapolis Indiana, United States	13.6
183	Hattiesburg Mississippi, United States	13.6
187	Beigang Taiwan, Taiwan	13.5
187	West Memphis Arkansas, United States	13.5
187	Nogales Arizona, United States	13.5
190	Anaheim California, United States	13.4
191	Sunland Park New Mexico, United States	13.3
192	Botevgrad low-cost sensors Sofia, Bulgaria	13.2
192	Strzelce Opolskie Opole Voivodeship, Poland	13.2
194	Yuanlin Taiwan, Taiwan	13.1
194	Helena Montana, United States	13.1
196	Jincheng Fukien, Taiwan	13.0
197	Conakry Conakry, Guinea	12.9
197	Gdańsk Pomerania, Poland	12.9
197	Gulfport Mississippi, United States	12.9
197	Compton California, United States	12.9

Top 200 of 1,561 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