SmogRank / History / week of October 23, 2023

Most polluted cities, week of October 23, 2023

1,667 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	Lahore low-cost sensors Punjab, Pakistan	183.9
2	N'Djamena N’Djaména, Chad	129.7
3	Delhi Delhi, India	125.7
4	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	104.3
5	Beijing Beijing, China	87.9
6	Kolkata West Bengal, India	75.9
7	Dhaka low-cost sensors Dhaka Division, Bangladesh	71.5
8	Mumbai Maharashtra, India	70.4
9	Cairo Cairo, Egypt	67.3
10	Shenyang Liaoning, China	66.3
11	Islamabad low-cost sensors Islamabad, Pakistan	59.5
11	Hanoi Hanoi, Vietnam	59.5
13	Hyderabad Telangana, India	54.3
14	Karachi low-cost sensors Sindh, Pakistan	43.0
15	Jakarta Jakarta, Indonesia	41.1
16	Dushanbe Dushanbe, Tajikistan	37.8
17	Guangzhou Guangdong, China	37.7
18	Ulan Bator Ulaanbaatar, Mongolia	36.2
19	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	34.5
20	Bangkok low-cost sensors Bangkok, Thailand	34.3
21	Abuja low-cost sensors FCT, Nigeria	33.4
22	Pristina Pristina, Kosovo	31.9
23	Antananarivo Analamanga, Madagascar	29.6
24	Kampala low-cost sensors Central Region, Uganda	29.0
25	Jeddah Mecca Region, Saudi Arabia	27.6
26	Salor Tashkent Region, Uzbekistan	26.2
27	Baku Baki, Azerbaijan	24.0
28	Athens Attica, Greece	22.9
29	Colombo Western Province, Sri Lanka	22.5
29	Salamanca Guanajuato, Mexico	22.5
31	Sarajevo Federation of B&H, Bosnia and Herzegovina	22.2
32	Chiang Mai low-cost sensors Chiang Mai, Thailand	22.0
32	Tha Bo Nong Khai, Thailand	22.0
34	Ashgabat Ashgabat, Turkmenistan	21.6
35	Asprópyrgos Attica, Greece	21.3
36	Tuen Mun Tuen Mun, Hong Kong	20.9
37	Kathmandu low-cost sensors Bagmati Province, Nepal	20.7
37	Tin Shui Wai Yuen Long, Hong Kong	20.7
39	Mong Kok Yau Tsim Mong District, Hong Kong	19.8
40	Tetovo Tetovo, North Macedonia	19.6
41	Badger Alaska, United States	19.5
42	Żabbar Ħaż-Żabbar, Malta	19.0
43	Ilinden Ilinden, North Macedonia	18.9
44	Addis Ababa Addis Ababa, Ethiopia	18.5
44	Quezon City low-cost sensors National Capital Region, Philippines	18.5
46	Thessaloníki Central Macedonia, Greece	18.3
47	Acharnés Attica, Greece	18.0
48	Pátra West Greece, Greece	17.8
48	Celaya Guanajuato, Mexico	17.8
50	Piraeus Attica, Greece	17.4
50	Tsuen Wan Tsuen Wan, Hong Kong	17.4
50	Sham Shui Po Sham Shui Po District, Hong Kong	17.4
50	Kwai Chung Kwai Tsing District, Hong Kong	17.4
54	Khalándrion Attica, Greece	17.2
54	Fanling North District, Hong Kong	17.2
56	Sliema Tas-Sliema, Malta	16.7
56	Alessandria Piedmont, Italy	16.7
58	Tai Po Tai Po, Hong Kong	16.5
59	Sau Mau Ping Kwun Tong District, Hong Kong	16.3
60	Skopje Grad Skopje, North Macedonia	16.2
60	Almaty low-cost sensors Almaty, Kazakhstan	16.2
62	Nairobi Nairobi County, Kenya	15.4
63	Chikugo Fukuoka, Japan	15.3
64	Bensalem Pennsylvania, United States	15.2
65	Miyakonojō Miyazaki, Japan	15.1
65	Algiers Algiers, Algeria	15.1
67	Yawata Kyoto, Japan	15.0
68	Birmingham Alabama, United States	14.9
69	Kavadarci Kavadarci, North Macedonia	14.7
69	Sha Tin Sha Tin, Hong Kong	14.7
69	Tanushimarumachi-toyoki Fukuoka, Japan	14.7
69	Coslada Madrid, Spain	14.7
73	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	14.4
73	Kan’onjichō Kagawa, Japan	14.4
73	Yachiyo Chiba, Japan	14.4
76	Bizen Okayama, Japan	14.2
77	Tijuana Baja California, Mexico	14.0
78	Nagai Yamagata, Japan	13.9
79	Takanabe Miyazaki, Japan	13.8
79	Děčín Ústí nad Labem Region, Czechia	13.8
79	Port Alberni British Columbia, Canada	13.8
82	Niš Central Serbia, Serbia	13.7
82	Aberdeen Southern District, Hong Kong	13.7
84	Nabari Mie, Japan	13.6
84	Iyo Ehime, Japan	13.6
84	León de los Aldama Guanajuato, Mexico	13.6
84	Koga Fukuoka, Japan	13.6
88	Yangon Yangon, Myanmar	13.5
88	Nara-shi Nara, Japan	13.5
88	Silao de la Victoria Guanajuato, Mexico	13.5
88	Yuma Arizona, United States	13.5
92	Kazo Saitama, Japan	13.3
93	Miskolc Borsod-Abaúj-Zemplén, Hungary	13.2
93	Kurashiki Okayama, Japan	13.2
93	Kasaoka Okayama, Japan	13.2
93	Gyōda Saitama, Japan	13.2
93	Coeur d'Alene Idaho, United States	13.2
98	Ruse Ruse, Bulgaria	13.1
98	Maebaru-chūō Fukuoka, Japan	13.1
98	Kashihara-shi Nara, Japan	13.1
101	Chigasaki Kanagawa, Japan	13.0
101	Granite City Illinois, United States	13.0
101	Cranbrook British Columbia, Canada	13.0
101	Duncan British Columbia, Canada	13.0
101	Prince George British Columbia, Canada	13.0
106	Bitola Bitola, North Macedonia	12.9
106	Amagasaki Hyōgo, Japan	12.9
106	Anchorage Alaska, United States	12.9
109	Tsurusaki Oita, Japan	12.8
109	Tamano Okayama, Japan	12.8
111	Denver Colorado, United States	12.7
111	Candler-McAfee Georgia, United States	12.7
113	Ōmuta Fukuoka, Japan	12.6
113	Higashigō Saga, Japan	12.6
115	Shimonoseki Yamaguchi, Japan	12.5
115	Okayama Okayama, Japan	12.5
115	Fresno California, United States	12.5
115	Spokane Valley Washington, United States	12.5
119	Baton Rouge Louisiana, United States	12.4
119	Chikusei Ibaraki, Japan	12.4
119	Sugai Kyoto, Japan	12.4
122	Zentsujichó Kagawa, Japan	12.3
122	Uji Kyoto, Japan	12.3
122	Sandachō Hyōgo, Japan	12.3
122	Kakegawa Shizuoka, Japan	12.3
122	San Luis de la Paz Guanajuato, Mexico	12.3
122	Misato, Saitama Saitama, Japan	12.3
128	Tsuyama Okayama, Japan	12.2
128	Niihama Ehime, Japan	12.2
128	Marugame Kagawa, Japan	12.2
128	Kakogawachō-honmachi Hyōgo, Japan	12.2
132	Veles Veles, North Macedonia	12.1
132	Honmachi Kumamoto, Japan	12.1
132	Uto Kumamoto, Japan	12.1
132	Tamana Kumamoto, Japan	12.1
132	Sōja Okayama, Japan	12.1
132	Nichinan Miyazaki, Japan	12.1
132	Kumamoto Kumamoto, Japan	12.1
132	Kashiwara Nara, Japan	12.1
132	Irapuato Guanajuato, Mexico	12.1
132	Hattiesburg Mississippi, United States	12.1
132	Iga Mie, Japan	12.1
143	Cluj-Napoca Cluj County, Romania	12.0
143	Minato Wakayama, Japan	12.0
143	Kurume Fukuoka, Japan	12.0
143	Ikedachō Tokushima, Japan	12.0
143	La Línea de la Concepción Andalusia, Spain	12.0
143	Spokane Washington, United States	12.0
149	Kitakyushu Fukuoka, Japan	11.9
149	Kisarazu Chiba, Japan	11.9
149	Saijō Ehime, Japan	11.9
149	Teltow Brandenburg, Germany	11.9
149	New Brunswick New Jersey, United States	11.9
149	Kirishima Kagoshima, Japan	11.9
149	Tatsuno Hyōgo, Japan	11.9
156	Susaki Kochi, Japan	11.8
156	Saiki Oita, Japan	11.8
156	East Saint Louis Illinois, United States	11.8
156	Regina Saskatchewan, Canada	11.8
156	Mima Tokushima, Japan	11.8
161	Hanyū Saitama, Japan	11.7
161	Matsuyama Ehime, Japan	11.7
161	Trenton New Jersey, United States	11.7
161	Brawley California, United States	11.7
161	Fontana California, United States	11.7
161	Asakuchi Okayama, Japan	11.7
167	Tatebayashi Gunma, Japan	11.6
167	Iwade Wakayama, Japan	11.6
167	Bernau bei Berlin Brandenburg, Germany	11.6
167	West Mifflin Pennsylvania, United States	11.6
167	Courtenay British Columbia, Canada	11.6
172	Kochani Kochani, North Macedonia	11.5
172	Ōzu Kumamoto, Japan	11.5
172	Nakatsu Oita, Japan	11.5
172	Kanzakimachi-kanzaki Saga, Japan	11.5
172	Hiratsuka Kanagawa, Japan	11.5
172	Conakry Conakry, Guinea	11.5
172	Hyūga Miyazaki, Japan	11.5
179	Sano Tochigi, Japan	11.4
179	Higashinozoe Hyōgo, Japan	11.4
179	Narutochō-mitsuishi Tokushima, Japan	11.4
179	Menuma Saitama, Japan	11.4
179	Igusa Saitama, Japan	11.4
179	Little Rock Arkansas, United States	11.4
179	Niiza Saitama, Japan	11.4
179	Susono Shizuoka, Japan	11.4
179	Shikokuchūō Ehime, Japan	11.4
179	Harewood British Columbia, Canada	11.4
189	Uekimachi-mōno Kumamoto, Japan	11.3
189	Suzuka Mie, Japan	11.3
189	Sendai Kagoshima, Japan	11.3
189	Kyoto Kyoto, Japan	11.3
189	Kameyama Mie, Japan	11.3
189	Fukuyama Hiroshima, Japan	11.3
189	Berlin State of Berlin, Germany	11.3
189	Bohumín Moravian-Silesian Region, Czechia	11.3
197	Tosu Saga, Japan	11.2
197	Kōnosu Saitama, Japan	11.2
197	Kochi Kochi, Japan	11.2
197	Kasukabe Saitama, Japan	11.2

Top 200 of 1,667 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