SmogRank / History / week of October 30, 2023

Most polluted cities, week of October 30, 2023

1,841 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	272.9
2	Delhi Delhi, India	258.9
3	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	168.0
4	Calexico California, United States	146.4
5	N'Djamena N’Djaména, Chad	117.1
6	Dhaka low-cost sensors Dhaka Division, Bangladesh	99.4
7	Kolkata West Bengal, India	96.0
8	Beijing Beijing, China	78.4
9	Karachi low-cost sensors Sindh, Pakistan	74.5
10	Ashgabat Ashgabat, Turkmenistan	72.7
11	Mumbai Maharashtra, India	72.2
12	Tlaquepaque Jalisco, Mexico	72.0
13	Islamabad low-cost sensors Islamabad, Pakistan	69.0
14	Hyderabad Telangana, India	64.6
15	Cairo Cairo, Egypt	52.7
16	Shenyang Liaoning, China	52.1
17	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	51.5
18	Jakarta Jakarta, Indonesia	49.4
19	Hanoi Hanoi, Vietnam	46.9
20	Salor Tashkent Region, Uzbekistan	45.3
21	Tha Bo Nong Khai, Thailand	41.9
22	Abuja low-cost sensors FCT, Nigeria	36.1
23	Bangkok low-cost sensors Bangkok, Thailand	32.9
24	Guangzhou Guangdong, China	32.4
25	Pristina Pristina, Kosovo	32.2
26	Antananarivo Analamanga, Madagascar	32.1
27	Guadalajara Jalisco, Mexico	31.8
28	Mexicali Baja California, Mexico	31.5
29	Victoria de Durango Durango, Mexico	29.7
30	Toluca México, Mexico	27.1
31	Kathmandu low-cost sensors Bagmati Province, Nepal	26.8
32	Jeddah Mecca Region, Saudi Arabia	26.4
33	Hanford California, United States	26.3
34	Kurashiki Okayama, Japan	26.2
35	Almaty low-cost sensors Almaty, Kazakhstan	25.3
36	San Francisco Tlalcilalcalpan México, Mexico	24.7
37	Ciudad Benito Juárez Nuevo León, Mexico	24.6
38	Cholula Puebla, Mexico	24.5
38	San Salvador Tizatlalli México, Mexico	24.5
40	Ang Mo Kio New Town Singapore	24.1
41	Chikusei Ibaraki, Japan	24.0
41	Yatomi Aichi, Japan	24.0
43	Coeur d'Alene Idaho, United States	23.5
44	Kigali Kigali, Rwanda	23.4
44	Ulu Bedok Singapore	23.4
46	Kazo Saitama, Japan	23.3
47	Wan Chai Wan Chai, Hong Kong	23.2
47	Tijuana Baja California, Mexico	23.2
49	Fresno California, United States	23.0
50	Kasaoka Okayama, Japan	22.8
50	Handa Aichi, Japan	22.8
52	Baku Baki, Azerbaijan	22.3
52	Youkaichi Shiga, Japan	22.3
52	Corcoran California, United States	22.3
52	Cranbrook British Columbia, Canada	22.3
56	Bakersfield California, United States	22.0
57	Kan’onjichō Kagawa, Japan	21.9
57	Gyōda Saitama, Japan	21.9
59	Ourense Galicia, Spain	21.7
59	Regina Saskatchewan, Canada	21.7
61	Tokoname Aichi, Japan	21.6
61	Hanyū Saitama, Japan	21.6
63	Tahara Aichi, Japan	21.3
64	Tetovo Tetovo, North Macedonia	21.1
64	Sōja Okayama, Japan	21.1
64	Kōnosu Saitama, Japan	21.1
64	Sarajevo Federation of B&H, Bosnia and Herzegovina	21.1
68	Igusa Saitama, Japan	21.0
69	Addis Ababa Addis Ababa, Ethiopia	20.8
69	Nagoya Aichi, Japan	20.8
69	Visalia California, United States	20.8
69	Chikugo Fukuoka, Japan	20.8
73	Asaka Saitama, Japan	20.7
73	Yakima Washington, United States	20.7
75	Ciudad Apodaca Nuevo León, Mexico	20.6
76	Nara-shi Nara, Japan	20.5
76	Menuma Saitama, Japan	20.5
76	Ageo Saitama, Japan	20.5
76	Kaminoma Aichi, Japan	20.5
80	Kampala low-cost sensors Central Region, Uganda	20.4
80	Kasukabe Saitama, Japan	20.4
82	Koshigaya Saitama, Japan	20.2
82	Higashi-Matsuyama Saitama, Japan	20.2
82	Asakuchi Okayama, Japan	20.2
85	Yokkaichi Mie, Japan	20.0
85	Misato, Saitama Saitama, Japan	20.0
85	Tōkai Aichi, Japan	20.0
88	Yawata Kyoto, Japan	19.9
88	Jōsō Ibaraki, Japan	19.9
90	Kameyama Mie, Japan	19.8
91	Kumagaya Saitama, Japan	19.7
91	Chiryū Aichi, Japan	19.7
93	Kukichūō Saitama, Japan	19.6
93	Matsusaka Mie, Japan	19.6
95	Suzuka Mie, Japan	19.5
95	Morohongō Saitama, Japan	19.5
95	Kodamachō-kodamaminami Saitama, Japan	19.5
95	Kakogawachō-honmachi Hyōgo, Japan	19.5
99	Nampa Idaho, United States	19.4
99	Altamont Oregon, United States	19.4
101	Sakai-nakajima Gunma, Japan	19.2
101	Kashihara-shi Nara, Japan	19.2
101	Sunnyside Washington, United States	19.2
104	Tanushimarumachi-toyoki Fukuoka, Japan	19.1
104	Birmingham Alabama, United States	19.1
106	Sano Tochigi, Japan	19.0
107	Chigasaki Kanagawa, Japan	18.9
107	Niiza Saitama, Japan	18.9
107	Bizen Okayama, Japan	18.9
110	Tamano Okayama, Japan	18.8
110	Shimo-tsuma Ibaraki, Japan	18.8
112	Colombo Western Province, Sri Lanka	18.7
112	Sōka Saitama, Japan	18.7
112	Noda Chiba, Japan	18.7
115	Toyohashi Aichi, Japan	18.6
115	Okayama Okayama, Japan	18.6
115	Santa Catarina Nuevo León, Mexico	18.6
118	Tuen Mun Tuen Mun, Hong Kong	18.5
118	Nabari Mie, Japan	18.5
118	Ashikaga Tochigi, Japan	18.5
118	Anjō Aichi, Japan	18.5
118	Edmonton Alberta, Canada	18.5
123	Zentsujichó Kagawa, Japan	18.4
123	Tsu Mie, Japan	18.4
123	Okazaki Aichi, Japan	18.4
123	Kashiwara Nara, Japan	18.4
123	Columbus Georgia, United States	18.4
123	Turlock California, United States	18.4
123	Yachiyo Chiba, Japan	18.4
123	Ama Aichi, Japan	18.4
131	Tsuyama Okayama, Japan	18.3
131	Kawaguchi Saitama, Japan	18.3
131	Kariya Aichi, Japan	18.3
131	Nagai Yamagata, Japan	18.3
131	Bandō Ibaraki, Japan	18.3
131	Arao Kumamoto, Japan	18.3
131	Iga Mie, Japan	18.3
138	Skopje Grad Skopje, North Macedonia	18.2
138	Inuyama Aichi, Japan	18.2
138	Alessandria Piedmont, Italy	18.2
141	Yorii Saitama, Japan	18.1
141	Saitama Saitama, Japan	18.1
141	Higashigō Saga, Japan	18.1
141	Kuwana Mie, Japan	18.1
145	Higashinozoe Hyōgo, Japan	18.0
145	Naka Ibaraki, Japan	18.0
145	Modesto California, United States	18.0
145	Iruma Saitama, Japan	18.0
145	Sugai Kyoto, Japan	18.0
150	Tin Shui Wai Yuen Long, Hong Kong	17.9
150	Gifu Gifu, Japan	17.9
152	Niihama Ehime, Japan	17.8
152	Miyakonojō Miyazaki, Japan	17.8
154	Tamana Kumamoto, Japan	17.7
154	Sakado Saitama, Japan	17.7
154	Kakamigahara Gifu, Japan	17.7
154	Saltillo Coahuila, Mexico	17.7
158	Ono Hyōgo, Japan	17.6
158	Ōmuta Fukuoka, Japan	17.6
158	Ichinomiya Aichi, Japan	17.6
158	Amagasaki Hyōgo, Japan	17.6
158	Salem Oregon, United States	17.6
158	Spokane Washington, United States	17.6
158	Owariasahi Aichi, Japan	17.6
165	Sekimachi Gifu, Japan	17.5
165	Salamanca Guanajuato, Mexico	17.5
165	Grande Prairie Alberta, Canada	17.5
165	Nisshin Aichi, Japan	17.5
165	Nantan Kyoto, Japan	17.5
170	Uji Kyoto, Japan	17.4
170	Tenri Nara, Japan	17.4
170	Seto Aichi, Japan	17.4
170	Oyama Tochigi, Japan	17.4
170	Nishio Aichi, Japan	17.4
170	Kusatsu Shiga, Japan	17.4
170	Kawagoe Saitama, Japan	17.4
170	Ciudad Juárez Chihuahua, Mexico	17.4
170	Stockton California, United States	17.4
170	Tsuchiura Ibaraki, Japan	17.4
180	Kanzakimachi-kanzaki Saga, Japan	17.3
180	Hannō Saitama, Japan	17.3
180	Hermiston Oregon, United States	17.3
180	Spokane Valley Washington, United States	17.3
184	Mong Kok Yau Tsim Mong District, Hong Kong	17.2
184	Iyo Ehime, Japan	17.2
186	Uto Kumamoto, Japan	17.1
186	Honjō Saitama, Japan	17.1
186	Hekinan Aichi, Japan	17.1
186	Parkland Washington, United States	17.1
190	Kurume Fukuoka, Japan	17.0
190	Inabe Mie, Japan	17.0
190	Hashima Gifu, Japan	17.0
193	Saijō Ehime, Japan	16.9
194	Niš Central Serbia, Serbia	16.8
194	Sandachō Hyōgo, Japan	16.8
194	Saikū Mie, Japan	16.8
194	Boise Idaho, United States	16.8
194	Mizuho Gifu, Japan	16.8
199	Takahashi Okayama, Japan	16.7
199	Kyoto Kyoto, Japan	16.7

Top 200 of 1,841 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