SmogRank / History / week of August 28, 2023

Most polluted cities, week of August 28, 2023

1,789 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	Fort McMurray Alberta, Canada	139.5
2	Prince Albert Saskatchewan, Canada	110.3
3	Saskatoon Saskatchewan, Canada	94.2
4	Dhaka low-cost sensors Dhaka Division, Bangladesh	92.5
5	Edmonton Alberta, Canada	86.5
6	Fort St. John British Columbia, Canada	85.2
7	Grande Prairie Alberta, Canada	82.1
8	Kolkata West Bengal, India	67.7
9	Regina Saskatchewan, Canada	66.2
10	Dushanbe Dushanbe, Tajikistan	59.3
11	Roseburg Oregon, United States	57.5
12	Grants Pass Oregon, United States	56.4
13	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	50.8
14	Red Deer Alberta, Canada	47.8
15	Swift Current Saskatchewan, Canada	46.3
16	Sherwood Park Alberta, Canada	45.8
17	Lahore low-cost sensors Punjab, Pakistan	45.7
18	Kampala low-cost sensors Central Region, Uganda	45.4
19	St. Albert Alberta, Canada	44.9
20	Medford Oregon, United States	44.8
21	Ashland Oregon, United States	43.3
21	Bend Oregon, United States	43.3
23	Kigali Kigali, Rwanda	42.6
24	Redmond Oregon, United States	38.1
25	Delhi Delhi, India	37.8
26	Kamloops British Columbia, Canada	36.9
27	Hanoi Hanoi, Vietnam	36.7
28	Hyderabad Telangana, India	36.5
29	Mexicali Baja California, Mexico	35.8
30	Xonacatlán México, Mexico	35.7
31	Islamabad low-cost sensors Islamabad, Pakistan	35.1
32	Addis Ababa Addis Ababa, Ethiopia	34.5
33	Bismarck North Dakota, United States	34.4
34	Victoria de Durango Durango, Mexico	33.4
35	Candelaria Canary Islands, Spain	33.0
36	Lima Lima Province, Peru	31.8
37	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	31.4
38	Cuernavaca Morelos, Mexico	31.2
39	Zapopan Jalisco, Mexico	31.1
40	Nairobi Nairobi County, Kenya	30.9
41	Pristina Pristina, Kosovo	30.0
41	Calgary Alberta, Canada	30.0
43	San Salvador Tizatlalli México, Mexico	29.2
44	Santa Anita - Los Ficus Lima region, Peru	28.7
45	Toluca México, Mexico	28.6
45	San Francisco Tlalcilalcalpan México, Mexico	28.6
47	Altamont Oregon, United States	27.6
48	Tlaquepaque Jalisco, Mexico	26.7
49	Bamako Bamako, Mali	25.6
50	N'Djamena N’Djaména, Chad	25.2
51	West Fargo North Dakota, United States	24.7
52	Ulu Bedok Singapore	24.3
53	Airdrie Alberta, Canada	23.6
54	Kathmandu low-cost sensors Bagmati Province, Nepal	23.2
55	Sarajevo Federation of B&H, Bosnia and Herzegovina	23.0
56	Chennai Tamil Nadu, India	21.9
57	Beijing Beijing, China	21.7
58	Ciudad Nezahualcoyotl México, Mexico	21.6
59	Ciudad Benito Juárez Nuevo León, Mexico	21.5
59	Redding California, United States	21.5
61	Karachi low-cost sensors Sindh, Pakistan	21.4
61	Morelia Michoacán, Mexico	21.4
61	Ciudad Apodaca Nuevo León, Mexico	21.4
64	Ang Mo Kio New Town Singapore	21.2
65	Naucalpan de Juárez México, Mexico	21.0
66	Villa Poeta José Gálvez Barrenechea Lima region, Peru	20.8
67	Guangzhou Guangdong, China	20.3
67	Shenyang Liaoning, China	20.3
69	Watertown South Dakota, United States	20.1
70	Santa Catarina Nuevo León, Mexico	19.7
71	Vernon British Columbia, Canada	19.5
72	Cholula Puebla, Mexico	19.3
73	Baku Baki, Azerbaijan	19.1
73	Tarnów Lesser Poland, Poland	19.1
73	Tijuana Baja California, Mexico	19.1
76	Calexico California, United States	18.3
77	Aberdeen South Dakota, United States	18.2
77	Penticton British Columbia, Canada	18.2
77	San Francisco De Borja Lima region, Peru	18.2
80	Mexico City Mexico City, Mexico	18.1
80	Kelowna British Columbia, Canada	18.1
82	Wan Chai Wan Chai, Hong Kong	18.0
82	Guadalajara Jalisco, Mexico	18.0
82	Ukiah California, United States	18.0
85	Derby Kansas, United States	17.6
86	Wichita Kansas, United States	17.5
87	Port Arthur Texas, United States	17.4
87	Brookings South Dakota, United States	17.4
89	Tepeji del Río de Ocampo Hidalgo, Mexico	17.3
89	Liberty Missouri, United States	17.3
91	Coslada Madrid, Spain	17.1
91	Medicine Hat Alberta, Canada	17.1
93	Turlock California, United States	17.0
94	Queenstown Estate low-cost sensors Singapore	16.9
95	Chihuahua Chihuahua, Mexico	16.6
95	Saint Cloud Minnesota, United States	16.6
97	Jenks Oklahoma, United States	16.4
98	Nagai Yamagata, Japan	16.2
99	Shreveport Louisiana, United States	16.1
100	Antananarivo Analamanga, Madagascar	15.9
100	Ciudad Juárez Chihuahua, Mexico	15.9
100	Celaya Guanajuato, Mexico	15.9
100	Anaheim California, United States	15.9
100	The Dalles Oregon, United States	15.9
105	Arroyo Grande California, United States	15.8
105	Compton California, United States	15.8
107	Sliema Tas-Sliema, Malta	15.7
108	Cuautla Morelos, Mexico	15.6
109	Jeddah Mecca Region, Saudi Arabia	15.5
109	Tha Bo Nong Khai, Thailand	15.5
109	Takasaki Gunma, Japan	15.5
109	Monterrey Nuevo León, Mexico	15.5
109	Yuma Arizona, United States	15.5
109	Madera California, United States	15.5
115	Ilinden Ilinden, North Macedonia	15.4
115	Salor Tashkent Region, Uzbekistan	15.4
117	Moore Oklahoma, United States	15.3
117	Dallas Texas, United States	15.3
119	Edmond Oklahoma, United States	15.2
119	Ponca City Oklahoma, United States	15.2
119	Tulsa Oklahoma, United States	15.2
122	Thessaloníki Central Macedonia, Greece	15.1
122	Yangon Yangon, Myanmar	15.1
124	Shakopee Minnesota, United States	14.9
124	Woodland California, United States	14.9
126	Burnsville Minnesota, United States	14.8
126	Nipomo California, United States	14.8
128	Asprópyrgos Attica, Greece	14.7
129	Saint Michael Minnesota, United States	14.6
129	Riverside California, United States	14.6
131	Chula Vista California, United States	14.5
131	Stockton California, United States	14.5
131	Yuba City California, United States	14.5
134	Los Angeles California, United States	14.4
134	Modesto California, United States	14.4
136	Bakersfield California, United States	14.3
136	Merced California, United States	14.3
138	San Andrés Tuxtla Veracruz, Mexico	14.2
138	Oklahoma City Oklahoma, United States	14.2
138	Lompoc California, United States	14.2
141	Fort Worth Texas, United States	14.1
141	Grand Island Nebraska, United States	14.1
141	Richmond California, United States	14.1
141	San Jose California, United States	14.1
145	San Luis de la Paz Guanajuato, Mexico	14.0
145	Sulphur Louisiana, United States	14.0
145	Galveston Texas, United States	14.0
148	Birmingham Alabama, United States	13.9
148	Lawton Oklahoma, United States	13.9
148	Denton Texas, United States	13.9
148	Pasadena Texas, United States	13.9
148	San Diego California, United States	13.9
148	Santa Barbara California, United States	13.9
148	Great Falls Montana, United States	13.9
155	Athens Attica, Greece	13.8
155	Sioux Falls South Dakota, United States	13.8
155	Oceanside California, United States	13.8
158	Chiang Mai low-cost sensors Chiang Mai, Thailand	13.7
158	São Paulo São Paulo, Brazil	13.7
158	Topeka Kansas, United States	13.7
158	Long Beach California, United States	13.7
162	Minneapolis Minnesota, United States	13.6
162	Chico California, United States	13.6
162	Fontana California, United States	13.6
165	Saltillo Coahuila, Mexico	13.5
165	Apple Valley Minnesota, United States	13.5
165	Jardines de la Silla Nuevo León, Mexico	13.5
168	Tula de Allende Hidalgo, Mexico	13.4
169	Kuala Lumpur low-cost sensors Kuala Lumpur, Malaysia	13.3
169	Baytown Texas, United States	13.3
169	Hanford California, United States	13.3
169	Jurupa Valley California, United States	13.3
169	Sacramento California, United States	13.3
174	Puebla Puebla, Mexico	13.2
174	Lethbridge Alberta, Canada	13.2
176	Acharnés Attica, Greece	13.1
176	Prešov Prešov Region, Slovakia	13.1
176	Ruse Ruse, Bulgaria	13.1
176	Tuen Mun Tuen Mun, Hong Kong	13.1
176	Springdale Arkansas, United States	13.1
176	Burbank California, United States	13.1
176	Fresno California, United States	13.1
183	McAlester Oklahoma, United States	13.0
183	Conroe Texas, United States	13.0
183	Houston Texas, United States	13.0
183	Missouri City Texas, United States	13.0
187	Amman Amman, Jordan	12.9
187	Cadereyta Jiménez Nuevo León, Mexico	12.9
187	Santiago de Querétaro Querétaro, Mexico	12.9
187	Little Rock Arkansas, United States	12.9
187	Texarkana Texas, United States	12.9
187	Corcoran California, United States	12.9
187	Salinas California, United States	12.9
194	Belgrade Central Serbia, Serbia	12.8
194	Saginaw Texas, United States	12.8
196	Woodlands Singapore	12.7
196	Corsicana Texas, United States	12.7
196	Saint Paul Minnesota, United States	12.7
196	Manteca California, United States	12.7
200	Bangkok low-cost sensors Bangkok, Thailand	12.6

Top 200 of 1,789 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