SmogRank / History / week of April 10, 2023

Most polluted cities, week of April 10, 2023

1,252 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	San Luis Potosí San Luis Potosí, Mexico	634.2
2	Dhaka low-cost sensors Dhaka Division, Bangladesh	172.6
3	Tha Bo Nong Khai, Thailand	154.4
4	Kathmandu low-cost sensors Bagmati Province, Nepal	114.8
5	Dushanbe Dushanbe, Tajikistan	100.4
6	Beijing Beijing, China	99.1
7	Delhi Delhi, India	88.5
8	Lahore low-cost sensors Punjab, Pakistan	88.0
9	Khartoum Khartoum, Sudan	77.4
10	Bamako Bamako, Mali	65.6
11	Shenyang Liaoning, China	62.0
12	Tlaquepaque Jalisco, Mexico	56.9
13	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	56.6
14	Yangon Yangon, Myanmar	52.5
15	Hyderabad Telangana, India	51.0
16	Hanoi Hanoi, Vietnam	49.4
17	Ashgabat Ashgabat, Turkmenistan	40.3
18	Manama Manama, Bahrain	39.2
18	Islamabad low-cost sensors Islamabad, Pakistan	39.2
20	San Mateo Atenco México, Mexico	38.7
21	Guangzhou Guangdong, China	37.4
22	Baghdad Baghdad, Iraq	36.6
23	Mexicali Baja California, Mexico	36.3
24	Mumbai Maharashtra, India	34.4
25	Celaya Guanajuato, Mexico	33.3
26	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	31.4
27	Kampala low-cost sensors Central Region, Uganda	31.1
28	Rabinal Baja Verapaz, Guatemala	30.9
28	Guatemala City Guatemala, Guatemala	30.9
30	Pristina Pristina, Kosovo	30.6
31	Colombo Western Province, Sri Lanka	30.4
32	Zapopan Jalisco, Mexico	29.9
33	Guadalajara Jalisco, Mexico	28.1
34	Ingenio Canary Islands, Spain	27.7
35	Ciudad Benito Juárez Nuevo León, Mexico	27.6
36	Las Palmas de Gran Canaria Canary Islands, Spain	26.6
37	Xonacatlán México, Mexico	26.5
38	Belmopan Cayo District, Belize	26.1
39	Toluca México, Mexico	25.1
40	San Francisco Tlalcilalcalpan México, Mexico	24.8
41	Karachi low-cost sensors Sindh, Pakistan	24.7
42	Santa Cruz de Tenerife Canary Islands, Spain	24.5
43	Lima Lima Province, Peru	24.4
44	Conakry Conakry, Guinea	23.7
45	San Isidro Canary Islands, Spain	23.6
46	Veracruz Veracruz, Mexico	22.6
47	Niš Central Serbia, Serbia	22.0
47	Arrecife Canary Islands, Spain	22.0
49	Tepeji del Río de Ocampo Hidalgo, Mexico	21.6
50	San Andrés Tuxtla Veracruz, Mexico	21.5
50	Ciudad Nezahualcoyotl México, Mexico	21.5
52	Abuja low-cost sensors FCT, Nigeria	21.2
53	Indianapolis Indiana, United States	21.1
54	Puerto del Rosario Canary Islands, Spain	20.9
55	Tijuana Baja California, Mexico	20.7
56	La Orotava Canary Islands, Spain	20.5
57	Havířov Moravian-Silesian Region, Czechia	20.4
58	Jeddah Mecca Region, Saudi Arabia	20.3
59	Salor Tashkent Region, Uzbekistan	20.1
60	Jakarta Jakarta, Indonesia	19.8
61	Agüimes Canary Islands, Spain	19.7
62	Baku Baki, Azerbaijan	19.6
63	Salamanca Guanajuato, Mexico	19.5
64	Candelaria Canary Islands, Spain	19.0
64	Český Těšín Moravian-Silesian Region, Czechia	19.0
66	Antananarivo Analamanga, Madagascar	18.9
66	Bohumín Moravian-Silesian Region, Czechia	18.9
68	Redford Michigan, United States	18.8
69	Naucalpan de Juárez México, Mexico	18.7
70	Frýdek-Místek Moravian-Silesian Region, Czechia	18.3
71	San Francisco De Borja Lima region, Peru	18.2
72	Puebla Puebla, Mexico	18.1
73	Abidjan low-cost sensors Abidjan Autonomous District, Ivory Coast	18.0
73	Maspalomas Canary Islands, Spain	18.0
73	Ostrava Moravian-Silesian Region, Czechia	18.0
76	Arucas Canary Islands, Spain	17.9
76	Chihuahua Chihuahua, Mexico	17.9
76	Dearborn Michigan, United States	17.9
79	Addis Ababa Addis Ababa, Ethiopia	17.8
79	Granadilla de Abona Canary Islands, Spain	17.8
79	Detroit Michigan, United States	17.8
82	Kitchener Ontario, Canada	17.7
83	Visby Gotland, Sweden	17.6
84	Yerevan low-cost sensors Yerevan, Armenia	17.4
84	Cuernavaca Morelos, Mexico	17.4
86	Ciudad Juárez Chihuahua, Mexico	17.3
87	Valašské Meziříčí Zlín, Czechia	17.2
87	Mexico City Mexico City, Mexico	17.2
89	Ciudad Apodaca Nuevo León, Mexico	17.1
89	Aguascalientes Aguascalientes, Mexico	17.1
91	Santa Cruz de la Palma Canary Islands, Spain	16.9
92	Los Angeles California, United States	16.8
93	Acharnés Attica, Greece	16.7
93	Hamilton Ontario, Canada	16.7
95	Coatzacoalcos Veracruz, Mexico	16.5
95	Victoria de Durango Durango, Mexico	16.5
97	León de los Aldama Guanajuato, Mexico	16.2
98	Port Huron Michigan, United States	16.1
98	Barrie Ontario, Canada	16.1
98	St. Thomas Ontario, Canada	16.1
98	Santa Anita - Los Ficus Lima region, Peru	16.1
102	Buffalo New York, United States	16.0
103	Monterrey Nuevo León, Mexico	15.9
104	Belgrade Central Serbia, Serbia	15.8
104	Arona Canary Islands, Spain	15.8
106	Irapuato Guanajuato, Mexico	15.7
107	Valley Station Kentucky, United States	15.5
107	Cleveland Ohio, United States	15.5
109	Santiago de Querétaro Querétaro, Mexico	15.2
110	Brantford Ontario, Canada	15.1
110	Greater Sudbury Ontario, Canada	15.1
112	Lagos low-cost sensors Lagos, Nigeria	14.9
112	Calexico California, United States	14.9
112	Sarnia Ontario, Canada	14.9
115	Szeged Csongrád, Hungary	14.8
116	Kuala Lumpur low-cost sensors Kuala Lumpur, Malaysia	14.7
116	Alessandria Piedmont, Italy	14.7
116	Grand Rapids Michigan, United States	14.7
116	London Ontario, Canada	14.7
120	Santa Catarina Nuevo León, Mexico	14.6
121	Algiers Algiers, Algeria	14.5
122	Iaşi Iași County, Romania	14.4
122	Prešov Prešov Region, Slovakia	14.4
122	La Línea de la Concepción Andalusia, Spain	14.4
122	Taylor Michigan, United States	14.4
126	Almaty low-cost sensors Almaty, Kazakhstan	14.3
126	Burbank California, United States	14.3
128	García Nuevo León, Mexico	14.2
128	Jeffersonville Indiana, United States	14.2
128	Jurupa Valley California, United States	14.2
128	San Diego California, United States	14.2
132	Athens Attica, Greece	14.1
132	Flint Michigan, United States	14.1
132	Erie Pennsylvania, United States	14.1
135	Guanajuato Guanajuato, Mexico	14.0
135	Lawrenceville Georgia, United States	14.0
135	Ypsilanti Michigan, United States	14.0
138	Děčín Ústí nad Labem Region, Czechia	13.9
139	Castelló de la Plana Valencia, Spain	13.8
140	Riga Riga, Latvia	13.7
140	Birmingham Alabama, United States	13.7
140	Jenison Michigan, United States	13.7
143	Teltow Brandenburg, Germany	13.5
144	Pachuca de Soto Hidalgo, Mexico	13.4
144	Terre Haute Indiana, United States	13.4
144	Oak Lawn Illinois, United States	13.4
144	St. Catharines Ontario, Canada	13.4
148	Ruse Ruse, Bulgaria	13.3
148	Saltillo Coahuila, Mexico	13.3
148	Springfield Massachusetts, United States	13.3
148	El Cajon California, United States	13.3
148	Belleville Ontario, Canada	13.3
153	Olomouc Olomouc Region, Czechia	13.2
153	San Luis de la Paz Guanajuato, Mexico	13.2
153	Elizabeth New Jersey, United States	13.2
156	Kaunas Kaunas, Lithuania	13.1
156	Münster North Rhine-Westphalia, Germany	13.1
156	Canton Ohio, United States	13.1
156	Warren Ohio, United States	13.1
156	Peterborough Ontario, Canada	13.1
161	Bucharest Bucharest, Romania	13.0
162	Ventspils Ventspils, Latvia	12.9
162	Thessaloníki Central Macedonia, Greece	12.9
162	Telde Canary Islands, Spain	12.9
162	East Ridge Tennessee, United States	12.9
162	Brawley California, United States	12.9
167	Dunaújváros Fejér, Hungary	12.8
167	Žilina Žilina Region, Slovakia	12.8
167	Trnava Trnava Region, Slovakia	12.8
170	Humenné Prešov Region, Slovakia	12.7
170	Bailén Andalusia, Spain	12.7
170	Bremen Bremen, Germany	12.7
173	Trenčín Trenčín Region, Slovakia	12.6
173	Louisville Kentucky, United States	12.6
173	Dublin Ohio, United States	12.6
173	Compton California, United States	12.6
177	Myyrmäki Uusimaa, Finland	12.5
177	Huelva Andalusia, Spain	12.5
177	Rostock Mecklenburg-Vorpommern, Germany	12.5
177	Kiel Schleswig-Holstein, Germany	12.5
177	Berlin State of Berlin, Germany	12.5
177	Senica Trnava Region, Slovakia	12.5
177	Norwood Ohio, United States	12.5
177	Glendora California, United States	12.5
185	Asprópyrgos Attica, Greece	12.4
185	Košice Košice Region, Slovakia	12.4
185	Eberswalde Brandenburg, Germany	12.4
185	Callao Callao, Peru	12.4
185	Lansing Michigan, United States	12.4
190	Güstrow Mecklenburg-Vorpommern, Germany	12.3
190	Frankfurt (Oder) Brandenburg, Germany	12.3
190	San Miguel de Allende Guanajuato, Mexico	12.3
193	Fort Smith Arkansas, United States	12.2
193	Santa Clarita California, United States	12.2
195	Alcalá de Henares Madrid, Spain	12.1
195	Cadereyta Jiménez Nuevo León, Mexico	12.1
195	Abasolo Guanajuato, Mexico	12.1
198	West Mifflin Pennsylvania, United States	12.0
199	Stralsund Mecklenburg-Vorpommern, Germany	11.9
199	Burgos Castille and León, Spain	11.9

Top 200 of 1,252 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