SmogRank / History / May 2024

Most polluted cities, May 2024

2,082 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	N'Djamena N’Djaména, Chad	156.2
2	Lahore low-cost sensors Punjab, Pakistan	85.9
3	Delhi Delhi, India	83.9
4	Santa Anita - Los Ficus Lima region, Peru	78.4
5	Dhaka low-cost sensors Dhaka Division, Bangladesh	68.2
6	Kathmandu low-cost sensors Bagmati Province, Nepal	55.7
7	Jakarta Jakarta, Indonesia	53.1
8	Ceglie Messapica Apulia, Italy	50.6
9	Baghdad Baghdad, Iraq	47.3
10	Cairo Cairo, Egypt	46.7
11	Beijing Beijing, China	45.8
12	Belmopan Cayo District, Belize	44.5
13	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	44.0
14	Chiang Mai low-cost sensors Chiang Mai, Thailand	42.0
15	Mumbai Maharashtra, India	41.5
16	Rabinal Baja Verapaz, Guatemala	38.3
17	Guatemala City Guatemala, Guatemala	37.3
18	Mission Texas, United States	36.3
19	Lima Lima Province, Peru	34.9
20	Hanoi Hanoi, Vietnam	33.7
21	Celaya Guanajuato, Mexico	33.1
22	Hyderabad Telangana, India	33.0
23	Islamabad low-cost sensors Islamabad, Pakistan	32.9
24	Edinburg Texas, United States	30.9
25	Addis Ababa Addis Ababa, Ethiopia	30.7
26	San Luis de la Paz Guanajuato, Mexico	30.0
27	Grande Prairie Alberta, Canada	29.7
28	San Francisco De Borja Lima region, Peru	29.4
29	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	29.2
30	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	28.6
31	Brownsville Texas, United States	28.4
32	Dushanbe Dushanbe, Tajikistan	27.5
33	Corpus Christi Texas, United States	27.1
34	Baku Baki, Azerbaijan	26.8
35	Irapuato Guanajuato, Mexico	26.2
36	Bangkok low-cost sensors Bangkok, Thailand	25.5
37	Laredo Texas, United States	25.2
38	Abuja low-cost sensors FCT, Nigeria	24.8
39	Kolkata West Bengal, India	24.7
39	Shanghai Shanghai, China	24.7
39	León de los Aldama Guanajuato, Mexico	24.7
42	Karachi low-cost sensors Sindh, Pakistan	24.5
43	Live Oak Texas, United States	23.1
44	San Miguel de Allende Guanajuato, Mexico	22.9
45	Sarajevo Federation of B&H, Bosnia and Herzegovina	22.6
46	Tha Bo Nong Khai, Thailand	22.3
46	Jacobo Hunter Arequipa, Peru	22.3
48	Guangzhou Guangdong, China	22.2
49	Richards Bay low-cost sensors KwaZulu-Natal, South Africa	21.6
50	Villa Poeta José Gálvez Barrenechea Lima region, Peru	21.5
50	Guanajuato Guanajuato, Mexico	21.5
50	Eagle Pass Texas, United States	21.5
53	Maputo Maputo City, Mozambique	21.4
54	Callao Callao, Peru	20.9
55	Jeddah Mecca Region, Saudi Arabia	20.8
56	Wan Chai Wan Chai, Hong Kong	20.7
57	Ashgabat Ashgabat, Turkmenistan	20.5
58	Beigang Taiwan, Taiwan	20.3
59	Kampala low-cost sensors Central Region, Uganda	20.2
59	Zhushan Taiwan, Taiwan	20.2
61	Yuanlin Taiwan, Taiwan	20.0
62	Antananarivo Analamanga, Madagascar	19.9
62	Salamanca Guanajuato, Mexico	19.9
64	Abasolo Guanajuato, Mexico	19.8
65	Douliu Taiwan, Taiwan	19.7
66	Yongkang Taiwan, Taiwan	19.6
66	Taibao Taiwan, Taiwan	19.6
68	Rangiora Canterbury, New Zealand	19.5
69	Tainan Taiwan, Taiwan	19.4
69	Erlun Taiwan, Taiwan	19.4
71	Chiayi City Taiwan, Taiwan	18.9
72	Ōyanomachi-noboritate Kumamoto, Japan	18.7
72	Austin Texas, United States	18.7
74	Ban Khlong Prawet low-cost sensors Bangkok, Thailand	18.5
75	Fengshan Takao, Taiwan	18.3
76	San Antonio Texas, United States	18.2
77	Houston Texas, United States	17.6
78	Erlin Taiwan, Taiwan	17.4
78	Missouri City Texas, United States	17.4
80	Acerra Campania, Italy	17.3
81	Mission Bend Texas, United States	17.1
82	Conroe Texas, United States	17.0
83	Puli Taiwan, Taiwan	16.8
84	Kaohsiung Takao, Taiwan	16.7
85	Chocope La Libertad, Peru	16.5
85	San Marcos Texas, United States	16.5
87	Ourense Galicia, Spain	16.3
88	Xinying Taiwan, Taiwan	16.1
89	Užice Central Serbia, Serbia	16.0
90	Shulin Taipei, Taiwan	15.9
90	Saginaw Texas, United States	15.9
92	Tuen Mun Tuen Mun, Hong Kong	15.7
93	Taichung Taiwan, Taiwan	15.6
93	Nantou Taiwan, Taiwan	15.6
95	Yangon Yangon, Myanmar	15.5
95	Chikugo Fukuoka, Japan	15.5
97	Athens Attica, Greece	15.3
97	Chaozhou Taiwan, Taiwan	15.3
97	Baytown Texas, United States	15.3
100	Mong Kok Yau Tsim Mong District, Hong Kong	15.2
100	Żabbar Ħaż-Żabbar, Malta	15.2
102	Ćuprija Central Serbia, Serbia	15.1
103	Fontana California, United States	15.0
104	Buzi Taiwan, Taiwan	14.9
104	Zhubei Taiwan, Taiwan	14.9
104	Falconara Marittima The Marches, Italy	14.9
107	Saijō Ehime, Japan	14.8
108	Jincheng Fukien, Taiwan	14.7
108	College Station Texas, United States	14.7
108	Pasadena Texas, United States	14.7
108	Edmonton Alberta, Canada	14.7
112	Zhudong Taiwan, Taiwan	14.6
112	Ōmuta Fukuoka, Japan	14.6
114	Xizhou Taiwan, Taiwan	14.5
114	Kasaoka Okayama, Japan	14.5
114	Mosta Il-Mosta, Malta	14.5
114	Dallas Texas, United States	14.5
114	Taylor Texas, United States	14.5
119	Miaoli Taiwan, Taiwan	14.4
119	Quezon City low-cost sensors National Capital Region, Philippines	14.4
119	Nakatsu Oita, Japan	14.4
119	Valletta Valletta, Malta	14.4
123	Algiers Algiers, Algeria	14.3
123	Lochristi Flanders, Belgium	14.3
123	La Crescenta-Montrose low-cost sensors California, United States	14.3
123	Shikokuchūō Ehime, Japan	14.3
127	Vilnius Vilnius, Lithuania	14.2
127	Honmachi Kumamoto, Japan	14.2
127	Hita Oita, Japan	14.2
127	Christchurch Canterbury, New Zealand	14.2
127	Evergem Flanders, Belgium	14.2
127	Corsicana Texas, United States	14.2
133	Salor Tashkent Region, Uzbekistan	14.1
134	Novi Pazar Central Serbia, Serbia	14.0
135	Ashburton Canterbury, New Zealand	13.9
136	Tanushimarumachi-toyoki Fukuoka, Japan	13.8
136	Niihama Ehime, Japan	13.8
136	Hondomachi-hondo Kumamoto, Japan	13.8
136	San Pawl il-Baħar Saint Paul’s Bay, Malta	13.8
136	Zielona Góra Lubusz, Poland	13.8
141	Changhua Taiwan, Taiwan	13.7
141	Port Arthur Texas, United States	13.7
143	Roeselare Flanders, Belgium	13.6
143	Mol Flanders, Belgium	13.6
143	Valjevo Central Serbia, Serbia	13.6
143	Texarkana Texas, United States	13.6
147	São Paulo São Paulo, Brazil	13.5
148	Uekimachi-mōno Kumamoto, Japan	13.4
148	Maebaru-chūō Fukuoka, Japan	13.4
148	Arao Kumamoto, Japan	13.4
151	Menen Flanders, Belgium	13.3
151	Alessandria Piedmont, Italy	13.3
151	Chimbote Ancash, Peru	13.3
154	Toufen Taiwan, Taiwan	13.2
154	Wangaratta Victoria, Australia	13.2
156	Minamata Kumamoto, Japan	13.1
156	Włocławek Kujawsko-Pomorskie, Poland	13.1
156	Toruń Kujawsko-Pomorskie, Poland	13.1
159	Taipei Taiwan, Taiwan	12.9
159	Uto Kumamoto, Japan	12.9
159	Fukuyama Hiroshima, Japan	12.9
159	Tilburg North Brabant, The Netherlands	12.9
159	Zwijndrecht Flanders, Belgium	12.9
159	Santa Clarita California, United States	12.9
159	Taoyuan Taiwan, Taiwan	12.9
166	Tamana Kumamoto, Japan	12.8
166	Jastrzębie Zdrój Silesia, Poland	12.8
166	Shreveport Louisiana, United States	12.8
166	Fort Worth Texas, United States	12.8
166	Los Angeles California, United States	12.8
171	Accra low-cost sensors Greater Accra, Ghana	12.7
171	Izegem Flanders, Belgium	12.7
171	Szczecin West Pomerania, Poland	12.7
171	Racibórz Silesia, Poland	12.7
171	Kalisz Greater Poland, Poland	12.7
171	Gdańsk Pomerania, Poland	12.7
171	Fabriano The Marches, Italy	12.7
178	Grajewo Podlasie, Poland	12.6
178	Tetovo Tetovo, North Macedonia	12.6
178	Daxi Taiwan, Taiwan	12.6
178	Hsinchu Taiwan, Taiwan	12.6
178	Sham Shui Po Sham Shui Po District, Hong Kong	12.6
178	Ōzu Kumamoto, Japan	12.6
178	Kanzakimachi-kanzaki Saga, Japan	12.6
178	Bielsko-Biala Silesia, Poland	12.6
186	Prešov Prešov Region, Slovakia	12.5
186	Kikuchi Kumamoto, Japan	12.5
186	Maarssen Utrecht, The Netherlands	12.5
186	Gdynia Pomerania, Poland	12.5
190	Gostivar Gostivar, North Macedonia	12.4
190	Tsuen Wan Tsuen Wan, Hong Kong	12.4
190	Tai Po Tai Po, Hong Kong	12.4
190	Kan’onjichō Kagawa, Japan	12.4
190	Imarichō-kō Saga, Japan	12.4
190	Maldegem Flanders, Belgium	12.4
190	Koksijde Flanders, Belgium	12.4
190	Datteln North Rhine-Westphalia, Germany	12.4
190	La Porte Texas, United States	12.4
190	Indio California, United States	12.4
190	Kotō Kumamoto, Japan	12.4

Top 200 of 2,082 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