SmogRank / History / week of September 25, 2023

Most polluted cities, week of September 25, 2023

1,687 cities ranked by their average PM2.5 over the 7 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³
1	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	341.4
2	Karachi low-cost sensors Sindh, Pakistan	81.7
3	Lahore low-cost sensors Punjab, Pakistan	62.3
4	Delhi Delhi, India	56.7
5	Dhaka low-cost sensors Dhaka Division, Bangladesh	49.7
6	Jakarta Jakarta, Indonesia	49.1
7	Manama Manama, Bahrain	48.1
8	Cairo Cairo, Egypt	46.2
9	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	44.8
10	Kampala low-cost sensors Central Region, Uganda	43.8
11	Jeddah Mecca Region, Saudi Arabia	40.9
12	Tlaquepaque Jalisco, Mexico	39.5
13	Hanoi Hanoi, Vietnam	36.9
14	Fort St. John British Columbia, Canada	36.6
15	Beijing Beijing, China	36.2
16	Islamabad low-cost sensors Islamabad, Pakistan	33.2
17	Addis Ababa Addis Ababa, Ethiopia	32.6
18	Żabbar Ħaż-Żabbar, Malta	32.3
19	Dushanbe Dushanbe, Tajikistan	32.1
20	Kolkata West Bengal, India	30.4
21	Ang Mo Kio New Town Singapore	28.8
22	Ulu Bedok Singapore	28.5
23	Guangzhou Guangdong, China	28.1
24	Mumbai Maharashtra, India	27.1
25	Fort McMurray Alberta, Canada	26.8
26	Mexicali Baja California, Mexico	26.4
27	Sarajevo Federation of B&H, Bosnia and Herzegovina	26.2
28	San Francisco Tlalcilalcalpan México, Mexico	26.0
28	San Salvador Tizatlalli México, Mexico	26.0
30	Kuala Lumpur low-cost sensors Kuala Lumpur, Malaysia	25.9
31	Xonacatlán México, Mexico	25.6
32	Hyderabad Telangana, India	25.5
32	Salor Tashkent Region, Uzbekistan	25.5
34	Pristina Pristina, Kosovo	25.2
35	Bamako Bamako, Mali	25.1
36	Baku Baki, Azerbaijan	24.4
37	Toluca México, Mexico	24.2
38	Ashgabat Ashgabat, Turkmenistan	24.0
39	Nairobi Nairobi County, Kenya	22.7
39	Guadalajara Jalisco, Mexico	22.7
41	Queenstown Estate low-cost sensors Singapore	22.5
42	N'Djamena N’Djaména, Chad	22.0
43	Antananarivo Analamanga, Madagascar	21.9
44	Birmingham Alabama, United States	21.6
45	St. John's Newfoundland and Labrador, Canada	21.4
46	Ancona The Marches, Italy	20.7
47	Kathmandu low-cost sensors Bagmati Province, Nepal	20.6
48	Little Rock Arkansas, United States	20.5
49	Alessandria Piedmont, Italy	20.4
50	Cholula Puebla, Mexico	20.0
51	Ruse Ruse, Bulgaria	19.9
52	Wan Chai Wan Chai, Hong Kong	19.6
52	Zapopan Jalisco, Mexico	19.6
54	Shenyang Liaoning, China	19.5
54	Granby Quebec, Canada	19.5
56	Astana Astana, Kazakhstan	19.4
57	Naples Campania, Italy	19.1
58	Falconara Marittima The Marches, Italy	18.6
59	Tijuana Baja California, Mexico	18.4
60	Morelia Michoacán, Mexico	18.2
61	Ciudad Juárez Chihuahua, Mexico	18.1
62	Mount Pearl Newfoundland and Labrador, Canada	17.8
63	Belgrade Central Serbia, Serbia	17.6
63	Sherbrooke Quebec, Canada	17.6
65	Cuernavaca Morelos, Mexico	17.4
66	Děčín Ústí nad Labem Region, Czechia	17.3
66	Cornwall Ontario, Canada	17.3
68	Quezon City low-cost sensors National Capital Region, Philippines	17.2
68	L'Ancienne-Lorette Quebec, Canada	17.2
70	Most Ústí nad Labem Region, Czechia	17.1
70	Brossard Quebec, Canada	17.1
72	Lexington low-cost sensors Massachusetts, United States	17.0
72	Fontana California, United States	17.0
72	Rivière-des-Prairies–Pointe-aux-Trembles Quebec, Canada	17.0
75	Athens Attica, Greece	16.9
76	Drummondville Quebec, Canada	16.8
76	Edmundston New Brunswick, Canada	16.8
78	Miskolc Borsod-Abaúj-Zemplén, Hungary	16.7
78	Montréal Quebec, Canada	16.7
78	Saint-Jean-sur-Richelieu Quebec, Canada	16.7
81	Trnava Trnava Region, Slovakia	16.6
81	Tepeji del Río de Ocampo Hidalgo, Mexico	16.6
83	Puebla Puebla, Mexico	16.5
83	Santa Catarina Nuevo León, Mexico	16.5
83	Salamanca Guanajuato, Mexico	16.5
86	Tetovo Tetovo, North Macedonia	16.4
86	Graz Styria, Austria	16.4
86	Ostrava Moravian-Silesian Region, Czechia	16.4
89	Asprópyrgos Attica, Greece	16.3
89	Burlington Vermont, United States	16.3
89	Edmonton Alberta, Canada	16.3
92	Hueytown Alabama, United States	16.2
93	Sofia Sofia-Capital, Bulgaria	16.1
94	Nagai Yamagata, Japan	16.0
95	Olomouc Olomouc Region, Czechia	15.9
95	Český Těšín Moravian-Silesian Region, Czechia	15.9
97	Woodlands Singapore	15.8
97	Banja Luka Srpska, Bosnia and Herzegovina	15.8
97	Québec Quebec, Canada	15.8
100	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	15.7
100	Přerov Olomouc Region, Czechia	15.7
102	Richards Bay low-cost sensors KwaZulu-Natal, South Africa	15.6
102	Ciudad Apodaca Nuevo León, Mexico	15.6
102	Keene New Hampshire, United States	15.6
102	Calexico California, United States	15.6
106	Znojmo South Moravian, Czechia	15.5
106	Hradec Králové Hradec Králové Region, Czechia	15.5
108	New London Connecticut, United States	15.4
108	Fall River Massachusetts, United States	15.4
110	Iyo Ehime, Japan	15.3
110	Brockton Massachusetts, United States	15.3
112	Hernando Mississippi, United States	15.2
112	Coventry Rhode Island, United States	15.2
112	Rutland Vermont, United States	15.2
115	Celaya Guanajuato, Mexico	15.1
115	Hartford Connecticut, United States	15.1
115	Springfield Massachusetts, United States	15.1
115	Augusta Maine, United States	15.1
119	Teplice Ústí nad Labem Region, Czechia	15.0
119	Mladá Boleslav Central Bohemia, Czechia	15.0
121	Martin Žilina Region, Slovakia	14.9
121	Kladno Central Bohemia, Czechia	14.9
121	Portland Maine, United States	14.9
121	Providence Rhode Island, United States	14.9
125	Pardubice Pardubice Region, Czechia	14.8
125	Worcester Massachusetts, United States	14.8
127	Móstoles Madrid, Spain	14.7
127	Civitanova Marche The Marches, Italy	14.7
127	Quincy Massachusetts, United States	14.7
127	Riverside California, United States	14.7
131	Senica Trnava Region, Slovakia	14.6
131	Pisa Tuscany, Italy	14.6
131	Greenfield Massachusetts, United States	14.6
134	Iaşi Iași County, Romania	14.5
134	Niš Central Serbia, Serbia	14.5
134	Fujinomiya Shizuoka, Japan	14.5
137	Khalándrion Attica, Greece	14.4
138	Boston Massachusetts, United States	14.3
138	Grande Prairie Alberta, Canada	14.3
140	Thessaloníki Central Macedonia, Greece	14.2
140	Sano Tochigi, Japan	14.2
140	Nitra Nitra Region, Slovakia	14.2
140	Valašské Meziříčí Zlín, Czechia	14.2
140	Ottawa Ontario, Canada	14.2
140	Saguenay Quebec, Canada	14.2
146	Prešov Prešov Region, Slovakia	14.1
146	Kasaoka Okayama, Japan	14.1
146	Teltow Brandenburg, Germany	14.1
149	Dorval Quebec, Canada	14.0
150	Bangkok low-cost sensors Bangkok, Thailand	13.9
150	Lowell Massachusetts, United States	13.9
150	Jurupa Valley California, United States	13.9
153	Laconia New Hampshire, United States	13.8
153	Brawley California, United States	13.8
155	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	13.7
155	Berlin State of Berlin, Germany	13.7
155	Saint John New Brunswick, Canada	13.7
155	Trois-Rivières Quebec, Canada	13.7
159	Sliema Tas-Sliema, Malta	13.6
159	Sainte-Geneviève-des-Bois Île-de-France, France	13.6
159	Prague Prague, Czechia	13.6
159	Litvínov Ústí nad Labem Region, Czechia	13.6
159	Kadaň Ústí nad Labem Region, Czechia	13.6
159	Valdemoro Madrid, Spain	13.6
159	Capannori Tuscany, Italy	13.6
159	Bogotá Bogota D.C., Colombia	13.6
159	Ciudad Benito Juárez Nuevo León, Mexico	13.6
159	Anaheim California, United States	13.6
159	Jardines de la Silla Nuevo León, Mexico	13.6
170	Piraeus Attica, Greece	13.5
170	Nyíregyháza Szabolcs-Szatmár-Bereg, Hungary	13.5
170	Bohumín Moravian-Silesian Region, Czechia	13.5
170	Beroun Central Bohemia, Czechia	13.5
170	Ciudad General Escobedo Nuevo León, Mexico	13.5
170	Haverhill Massachusetts, United States	13.5
170	Shikokuchūō Ehime, Japan	13.5
177	Tuen Mun Tuen Mun, Hong Kong	13.4
177	Ōtsuki Yamanashi, Japan	13.4
177	Židenice South Moravian, Czechia	13.4
177	Tula de Allende Hidalgo, Mexico	13.4
177	Bartlett Tennessee, United States	13.4
177	Albany New York, United States	13.4
177	Kingston Ontario, Canada	13.4
184	Niihama Ehime, Japan	13.3
184	Jurong West Singapore	13.3
184	Abuja low-cost sensors FCT, Nigeria	13.3
184	Klagenfurt am Wörthersee Carinthia, Austria	13.3
184	Burghausen Bavaria, Germany	13.3
184	Opava Moravian-Silesian Region, Czechia	13.3
184	La Spezia Liguria, Italy	13.3
184	Ponca City Oklahoma, United States	13.3
184	Moncton New Brunswick, Canada	13.3
184	Yatomi Aichi, Japan	13.3
194	Ústí nad Labem Ústí nad Labem Region, Czechia	13.2
194	Trento Trentino-Alto Adige, Italy	13.2
196	Szeged Csongrád, Hungary	13.1
196	Bernau bei Berlin Brandenburg, Germany	13.1
196	Zlín Zlín, Czechia	13.1
196	Alcalá de Henares Madrid, Spain	13.1
196	Viareggio Tuscany, Italy	13.1

Top 200 of 1,687 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