SmogRank / History / week of April 14, 2025

Most polluted cities, week of April 14, 2025

2,207 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	Santa Anita Jalisco, Mexico	90.0
2	Delhi Delhi, India	65.2
3	Dushanbe Dushanbe, Tajikistan	62.1
4	Islamabad low-cost sensors Islamabad, Pakistan	54.0
5	Sunland Park New Mexico, United States	47.5
6	Cuernavaca Morelos, Mexico	42.3
7	El Paso Texas, United States	40.1
8	Guangzhou Guangdong, China	39.5
9	Wan Chai Wan Chai, Hong Kong	37.8
10	Victoria de Durango Durango, Mexico	37.1
11	Hacienda Santa Fe Jalisco, Mexico	35.8
12	Zacatepec de Hidalgo Morelos, Mexico	35.7
13	Ciudad Nezahualcoyotl México, Mexico	35.3
14	Tuen Mun Tuen Mun, Hong Kong	34.8
15	Istanbul low-cost sensors Istanbul, Turkey	34.2
16	Cuautla Morelos, Mexico	34.1
17	Ciudad Juárez Chihuahua, Mexico	34.0
18	Callao Callao, Peru	33.4
19	Mong Kok Yau Tsim Mong District, Hong Kong	32.7
20	Fanling North District, Hong Kong	32.5
21	Tlaquepaque Jalisco, Mexico	32.4
22	Shenyang Liaoning, China	31.7
23	Puebla Puebla, Mexico	31.2
24	Tehuacán Puebla, Mexico	31.0
25	Socorro Texas, United States	30.4
26	Quezon City low-cost sensors National Capital Region, Philippines	30.3
26	Aguascalientes Aguascalientes, Mexico	30.3
28	Lima Lima Province, Peru	30.1
29	Vientiane low-cost sensors Vientiane Prefecture, Laos	29.9
30	Mexico City Mexico City, Mexico	29.5
31	Dubai low-cost sensors Dubai, United Arab Emirates	29.3
32	San Tung Chung Hang Islands, Hong Kong	29.2
33	Hobbs New Mexico, United States	29.0
34	Jakarta Jakarta, Indonesia	28.9
34	Mixquiahuala de Juárez Hidalgo, Mexico	28.9
36	Victoria Central and Western, Hong Kong	28.2
37	Kwai Chung Kwai Tsing District, Hong Kong	28.1
38	Tai Po Tai Po, Hong Kong	27.9
39	Chihuahua Chihuahua, Mexico	27.4
40	Apizaco Tlaxcala, Mexico	26.5
41	Sau Mau Ping Kwun Tong District, Hong Kong	26.1
42	Zapopan Jalisco, Mexico	26.0
43	Tsuen Wan Tsuen Wan, Hong Kong	25.8
43	Tin Shui Wai Yuen Long, Hong Kong	25.8
45	Jincheng Fukien, Taiwan	25.7
46	García Nuevo León, Mexico	25.4
47	Guadalajara Jalisco, Mexico	25.2
48	Sham Shui Po Sham Shui Po District, Hong Kong	24.9
49	Morelia Michoacán, Mexico	24.8
50	Taoyuan Taiwan, Taiwan	24.7
51	San Luis de la Paz Guanajuato, Mexico	24.3
52	Sha Tin Sha Tin, Hong Kong	24.2
53	Irapuato Guanajuato, Mexico	23.6
54	Negotin Central Serbia, Serbia	23.5
54	Sopot Pomerania, Poland	23.5
54	Gdynia Pomerania, Poland	23.5
57	Novi Pazar Central Serbia, Serbia	23.4
58	Vereeniging low-cost sensors Gauteng, South Africa	23.2
58	Buzi Taiwan, Taiwan	23.2
58	Gdańsk Pomerania, Poland	23.2
61	Aberdeen Southern District, Hong Kong	23.0
61	Tulancingo Hidalgo, Mexico	23.0
63	Taibao Taiwan, Taiwan	22.9
63	Xizhou Taiwan, Taiwan	22.9
65	Saltillo Coahuila, Mexico	22.8
65	Chrang Chamreh Muoy low-cost sensors Phnom Penh, Cambodia	22.8
65	San Francisco De Borja Lima region, Peru	22.8
68	Khlong Luang low-cost sensors Pathum Thani, Thailand	22.5
69	Hsinchu Taiwan, Taiwan	22.4
69	Erlun Taiwan, Taiwan	22.4
71	Taipei Taiwan, Taiwan	22.2
72	Chennai Tamil Nadu, India	22.1
73	Yuanlin Taiwan, Taiwan	22.0
74	Taichung Taiwan, Taiwan	21.9
74	New Taipei City Taipei, Taiwan	21.9
76	Neili Taiwan, Taiwan	21.8
76	Erlin Taiwan, Taiwan	21.8
78	Zhubei Taiwan, Taiwan	21.6
78	Monterrey Nuevo León, Mexico	21.6
78	Ciudad Benito Juárez Nuevo León, Mexico	21.6
81	Tepic Nayarit, Mexico	21.5
82	Addis Ababa Addis Ababa, Ethiopia	21.4
82	Nantou Taiwan, Taiwan	21.4
84	Changhua Taiwan, Taiwan	21.3
85	Zaječar Central Serbia, Serbia	21.0
86	Douliu Taiwan, Taiwan	20.9
87	Daxi Taiwan, Taiwan	20.6
87	Xizhi Taipei, Taiwan	20.6
89	Shulin Taipei, Taiwan	20.5
89	Magong Taiwan, Taiwan	20.5
91	Toufen Taiwan, Taiwan	20.4
91	Cadereyta Jiménez Nuevo León, Mexico	20.4
93	Liepāja Liepaja, Latvia	20.3
93	Zhudong Taiwan, Taiwan	20.3
95	Sai Mai low-cost sensors Bangkok, Thailand	20.1
96	Puli Taiwan, Taiwan	19.9
97	Yongkang Taiwan, Taiwan	19.8
97	Tainan Taiwan, Taiwan	19.8
97	Beigang Taiwan, Taiwan	19.8
97	Zhushan Taiwan, Taiwan	19.8
97	Santa Anita - Los Ficus Lima region, Peru	19.8
102	Jardines de la Silla Nuevo León, Mexico	19.7
103	Albany Georgia, United States	19.6
104	Fengshan Takao, Taiwan	19.4
105	Xinying Taiwan, Taiwan	19.3
105	Tula de Allende Hidalgo, Mexico	19.3
107	Kaohsiung Takao, Taiwan	19.1
107	Iloilo low-cost sensors Western Visayas, Philippines	19.1
109	Ciudad General Escobedo Nuevo León, Mexico	19.0
109	La Providencia Siglo XXI Hidalgo, Mexico	19.0
111	San Juan del Río Querétaro, Mexico	18.8
112	Miaoli Taiwan, Taiwan	18.7
112	Chiayi City Taiwan, Taiwan	18.7
112	León de los Aldama Guanajuato, Mexico	18.7
115	Klaipėda Klaipėda County, Lithuania	18.5
115	Salamanca Guanajuato, Mexico	18.5
117	Santa Catarina Nuevo León, Mexico	18.3
117	San Luis Potosí San Luis Potosí, Mexico	18.3
119	Chaozhou Taiwan, Taiwan	18.1
120	Prokuplje Central Serbia, Serbia	18.0
121	Hiratsuka Kanagawa, Japan	17.8
122	Sanzhi Taipei, Taiwan	17.7
123	Columbus Georgia, United States	17.6
124	Bangkok low-cost sensors Bangkok, Thailand	17.4
125	Ventspils Ventspils, Latvia	17.3
125	Leskovac Central Serbia, Serbia	17.3
125	Pachuca de Soto Hidalgo, Mexico	17.3
128	Keelung Taiwan, Taiwan	17.1
128	Kurashiki Okayama, Japan	17.1
128	Tallahassee Florida, United States	17.1
131	Nairobi Nairobi County, Kenya	16.7
132	Yokkaichi Mie, Japan	16.6
133	Accra low-cost sensors Greater Accra, Ghana	16.5
133	Celaya Guanajuato, Mexico	16.5
135	Yilan Taiwan, Taiwan	16.4
135	Kameyama Mie, Japan	16.4
137	San Pawl il-Baħar Saint Paul’s Bay, Malta	16.3
138	Suzuka Mie, Japan	16.1
138	Kofu Yamanashi, Japan	16.1
138	Neubrandenburg Mecklenburg-Vorpommern, Germany	16.1
141	Otwock Mazovia, Poland	16.0
141	Ōtsuki Yamanashi, Japan	16.0
141	Ishinomaki Miyagi, Japan	16.0
141	Elbląg Warmia-Masuria, Poland	16.0
145	Stodůlky low-cost sensors Prague, Czechia	15.9
146	Asakuchi Okayama, Japan	15.8
147	Inabe Mie, Japan	15.7
148	Debrecen low-cost sensors Hajdú-Bihar, Hungary	15.6
148	Olsztyn Warmia-Masuria, Poland	15.6
148	Kraljevo Central Serbia, Serbia	15.6
148	Tamana Kumamoto, Japan	15.6
148	Onoda Yamaguchi, Japan	15.6
148	Igusa Saitama, Japan	15.6
148	Gyōda Saitama, Japan	15.6
148	Włocławek Kujawsko-Pomorskie, Poland	15.6
148	San Miguel de Allende Guanajuato, Mexico	15.6
148	Topeka Kansas, United States	15.6
148	Owariasahi Aichi, Japan	15.6
148	Shikokuchūō Ehime, Japan	15.6
160	Yerevan low-cost sensors Yerevan, Armenia	15.5
160	Tsu Mie, Japan	15.5
160	Saijō Ehime, Japan	15.5
160	Toruń Kujawsko-Pomorskie, Poland	15.5
160	Świecie Kujawsko-Pomorskie, Poland	15.5
165	Tahara Aichi, Japan	15.4
165	Kodamachō-kodamaminami Saitama, Japan	15.4
167	Youkaichi Shiga, Japan	15.3
167	Nabari Mie, Japan	15.3
167	Las Cruces New Mexico, United States	15.3
167	Matsusaka Mie, Japan	15.3
171	Sakado Saitama, Japan	15.2
171	Nyūzen Toyama, Japan	15.2
171	Menuma Saitama, Japan	15.2
171	Kukichūō Saitama, Japan	15.2
171	Užice Central Serbia, Serbia	15.2
171	East Ridge Tennessee, United States	15.2
171	Shirakawa Fukushima, Japan	15.2
178	Ełk Warmia-Masuria, Poland	15.1
178	Yujing Taiwan, Taiwan	15.1
178	Kasaoka Okayama, Japan	15.1
178	Kariya Aichi, Japan	15.1
178	Medina Estates low-cost sensors Greater Accra, Ghana	15.1
178	Stralsund Mecklenburg-Vorpommern, Germany	15.1
178	Kołobrzeg West Pomerania, Poland	15.1
178	Higashi-Matsuyama Saitama, Japan	15.1
186	Tamano Okayama, Japan	15.0
186	Sakai-nakajima Gunma, Japan	15.0
186	Chigasaki Kanagawa, Japan	15.0
186	Kuwana Mie, Japan	15.0
190	Tomaszów Lubelski Lublin, Poland	14.9
190	Yorii Saitama, Japan	14.9
190	Yokota Tokyo, Japan	14.9
190	Ageo Saitama, Japan	14.9
190	Valletta Valletta, Malta	14.9
195	Kaunas Kaunas, Lithuania	14.8
195	Morohongō Saitama, Japan	14.8
195	Marugame Kagawa, Japan	14.8
195	Kōnosu Saitama, Japan	14.8
195	Higashiosaka Osaka, Japan	14.8
195	Asaka Saitama, Japan	14.8

Top 200 of 2,207 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