SmogRank / History / week of January 1, 2024

Most polluted cities, week of January 1, 2024

1,860 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	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	314.0
2	Lahore low-cost sensors Punjab, Pakistan	262.1
3	Delhi Delhi, India	212.9
4	Dhaka low-cost sensors Dhaka Division, Bangladesh	189.4
5	Islamabad low-cost sensors Islamabad, Pakistan	177.4
6	Kolkata West Bengal, India	176.9
7	Ulan Bator Ulaanbaatar, Mongolia	128.7
8	Mumbai Maharashtra, India	108.0
9	Salor Tashkent Region, Uzbekistan	100.7
10	Karachi low-cost sensors Sindh, Pakistan	94.1
11	Abuja low-cost sensors FCT, Nigeria	92.3
12	Hyderabad Telangana, India	83.4
13	Kavadarci Kavadarci, North Macedonia	82.3
14	Veles Veles, North Macedonia	82.1
15	Tetovo Tetovo, North Macedonia	78.0
16	Niš Central Serbia, Serbia	69.5
17	Banja Luka Srpska, Bosnia and Herzegovina	68.1
18	Skopje Grad Skopje, North Macedonia	67.7
19	Kathmandu low-cost sensors Bagmati Province, Nepal	66.7
20	Tlaquepaque Jalisco, Mexico	63.2
21	Shenyang Liaoning, China	59.3
22	Kigali Kigali, Rwanda	57.6
23	Chennai Tamil Nadu, India	55.4
24	Dushanbe Dushanbe, Tajikistan	54.7
25	Ilinden Ilinden, North Macedonia	51.7
26	Guangzhou Guangdong, China	51.0
27	Hanoi Hanoi, Vietnam	50.9
28	Yangon Yangon, Myanmar	49.6
29	Ciudad Benito Juárez Nuevo León, Mexico	48.8
30	Almaty low-cost sensors Almaty, Kazakhstan	46.7
31	Thessaloníki Central Macedonia, Greece	42.6
32	Cholula Puebla, Mexico	42.3
33	Bitola Bitola, North Macedonia	41.9
34	Tuen Mun Tuen Mun, Hong Kong	41.1
35	Haskovo low-cost sensors Haskovo, Bulgaria	40.1
36	Volos Thessaly, Greece	39.5
37	Wan Chai Wan Chai, Hong Kong	39.4
38	Dej Cluj County, Romania	38.3
39	Kochani Kochani, North Macedonia	37.2
40	Jakarta Jakarta, Indonesia	36.4
41	Bangkok low-cost sensors Bangkok, Thailand	36.1
42	Chiang Mai low-cost sensors Chiang Mai, Thailand	35.9
43	Tin Shui Wai Yuen Long, Hong Kong	35.0
44	Badger Alaska, United States	34.7
45	Mong Kok Yau Tsim Mong District, Hong Kong	33.9
46	Manlleu Catalonia, Spain	33.8
47	Victoria Central and Western, Hong Kong	33.6
48	Sarajevo Federation of B&H, Bosnia and Herzegovina	33.5
49	Salamanca Guanajuato, Mexico	32.7
50	Celaya Guanajuato, Mexico	32.3
51	Pristina Pristina, Kosovo	32.2
52	Silao de la Victoria Guanajuato, Mexico	31.1
53	Tsuen Wan Tsuen Wan, Hong Kong	31.0
54	Sham Shui Po Sham Shui Po District, Hong Kong	30.6
55	Santa Catarina Nuevo León, Mexico	30.4
56	Cadereyta Jiménez Nuevo León, Mexico	30.1
57	Mexicali Baja California, Mexico	29.9
58	Nogales Arizona, United States	29.8
59	Sau Mau Ping Kwun Tong District, Hong Kong	29.7
59	Ciudad Apodaca Nuevo León, Mexico	29.7
61	Spišská Nová Ves Košice Region, Slovakia	29.5
61	Beijing Beijing, China	29.5
61	Kwai Chung Kwai Tsing District, Hong Kong	29.5
64	Puebla Puebla, Mexico	29.1
65	Tai Po Tai Po, Hong Kong	29.0
66	Bucharest Bucharest, Romania	28.7
67	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	28.4
68	Irapuato Guanajuato, Mexico	28.2
69	Sha Tin Sha Tin, Hong Kong	27.7
70	Cluj-Napoca Cluj County, Romania	27.1
71	Guadalajara Jalisco, Mexico	27.0
72	Ciudad General Escobedo Nuevo León, Mexico	26.8
73	Addis Ababa Addis Ababa, Ethiopia	26.7
74	San Tung Chung Hang Islands, Hong Kong	26.4
75	Callao Callao, Peru	26.3
76	Alessandria Piedmont, Italy	25.9
77	Colombo Western Province, Sri Lanka	25.8
78	Phoenix Arizona, United States	25.4
79	Aberdeen Southern District, Hong Kong	25.3
80	Athens Attica, Greece	24.9
80	Caserta Campania, Italy	24.9
82	Zacatepec de Hidalgo Morelos, Mexico	24.8
82	Lima Lima Province, Peru	24.8
84	Ourense Galicia, Spain	24.6
84	San Andrés Tuxtla Veracruz, Mexico	24.6
84	San Antonio Texas, United States	24.6
87	Turin Piedmont, Italy	24.5
88	Monterrey Nuevo León, Mexico	24.4
89	Mixquiahuala de Juárez Hidalgo, Mexico	24.3
90	Bishkek low-cost sensors Bishkek, Kyrgyzstan	24.1
91	Veracruz Veracruz, Mexico	24.0
92	Toluca México, Mexico	23.8
93	Santa Anita - Los Ficus Lima region, Peru	23.4
94	Fanling North District, Hong Kong	23.2
95	Sofia Sofia-Capital, Bulgaria	22.9
96	Houston Texas, United States	22.8
97	Havířov Moravian-Silesian Region, Czechia	22.6
98	Bastia Corsica, France	21.9
99	San Martin Texmelucan de Labastida Puebla, Mexico	21.8
100	Ruse Ruse, Bulgaria	21.6
101	Lleida Catalonia, Spain	21.4
102	Tehuacán Puebla, Mexico	20.9
103	Bohumín Moravian-Silesian Region, Czechia	20.7
104	Tijuana Baja California, Mexico	20.5
104	San Salvador Tizatlalli México, Mexico	20.5
106	Gabrovo low-cost sensors Gabrovo, Bulgaria	20.4
106	Benevento Campania, Italy	20.4
108	Belgrade Central Serbia, Serbia	19.9
109	Quezon City low-cost sensors National Capital Region, Philippines	19.8
110	Naples Campania, Italy	19.7
111	León de los Aldama Guanajuato, Mexico	19.5
112	Iaşi Iași County, Romania	19.4
112	Murcia Murcia, Spain	19.4
112	Ancona The Marches, Italy	19.4
115	Asprópyrgos Attica, Greece	19.2
115	Monaco Municipality of Monaco, Monaco	19.2
117	Falconara Marittima The Marches, Italy	19.1
118	Capannori Tuscany, Italy	18.8
119	Acharnés Attica, Greece	18.6
119	Bailén Andalusia, Spain	18.6
119	Mollet del Vallès Catalonia, Spain	18.6
122	Děčín Ústí nad Labem Region, Czechia	18.5
122	Pasadena Texas, United States	18.5
124	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	18.4
124	Missouri City Texas, United States	18.4
126	Sevilla Andalusia, Spain	18.3
126	Jesi The Marches, Italy	18.3
128	Craiova Dolj, Romania	18.2
129	Ceglie Messapica Apulia, Italy	17.8
130	Opava Moravian-Silesian Region, Czechia	17.5
130	Most Ústí nad Labem Region, Czechia	17.5
132	Piraeus Attica, Greece	17.2
132	Dimitrovgrad low-cost sensors Haskovo, Bulgaria	17.2
132	Novi Sad Vojvodina, Serbia	17.2
135	Valašské Meziříčí Zlín, Czechia	17.0
136	Botevgrad low-cost sensors Sofia, Bulgaria	16.9
137	Olomouc Olomouc Region, Czechia	16.8
137	Bogotá Bogota D.C., Colombia	16.8
139	Ostrava Moravian-Silesian Region, Czechia	16.7
139	Millcreek Utah, United States	16.7
141	Amora Setúbal, Portugal	16.6
142	Edmonton Alberta, Canada	16.4
143	Montemurlo Tuscany, Italy	16.3
144	Jeddah Mecca Region, Saudi Arabia	16.1
144	Butte Montana, United States	16.1
146	Ústí nad Labem Ústí nad Labem Region, Czechia	16.0
146	Morelia Michoacán, Mexico	16.0
148	San Luis de la Paz Guanajuato, Mexico	15.8
149	West Jordan Utah, United States	15.7
150	Miskolc Borsod-Abaúj-Zemplén, Hungary	15.6
150	Český Těšín Moravian-Silesian Region, Czechia	15.6
150	Vigo Galicia, Spain	15.6
153	Graz Styria, Austria	15.4
153	Columbus Georgia, United States	15.4
155	Klagenfurt am Wörthersee Carinthia, Austria	15.3
156	Banbridge Northern Ireland, United Kingdom	15.2
156	Fairbanks Alaska, United States	15.2
158	Humenné Prešov Region, Slovakia	15.1
158	Glendale Arizona, United States	15.1
158	Visalia California, United States	15.1
161	Pesaro The Marches, Italy	14.9
161	Santiago de Querétaro Querétaro, Mexico	14.9
163	Algiers Algiers, Algeria	14.8
163	Pécs Baranya, Hungary	14.8
163	Edmond Oklahoma, United States	14.8
163	Mission Bend Texas, United States	14.8
163	Fresno California, United States	14.8
168	Žilina Žilina Region, Slovakia	14.7
169	Compton California, United States	14.6
170	Birmingham Alabama, United States	14.5
170	Bakersfield California, United States	14.5
172	Zvolen Banská Bystrica Region, Slovakia	14.4
172	Miami Florida, United States	14.4
174	Villa Poeta José Gálvez Barrenechea Lima region, Peru	14.3
175	Teplice Ústí nad Labem Region, Czechia	14.2
176	Košice Košice Region, Slovakia	13.9
176	Maebaru-chūō Fukuoka, Japan	13.9
176	Wolfsberg Carinthia, Austria	13.9
176	Sallanches Auvergne-Rhône-Alpes, France	13.9
176	Tula de Allende Hidalgo, Mexico	13.9
176	Salt Lake City Utah, United States	13.9
182	Přerov Olomouc Region, Czechia	13.8
182	Dearborn Michigan, United States	13.8
182	Hanford California, United States	13.8
185	Zlín Zlín, Czechia	13.7
185	Grand Rapids Michigan, United States	13.7
187	Redford Michigan, United States	13.6
188	Pardubice Pardubice Region, Czechia	13.5
188	San Miguel de Allende Guanajuato, Mexico	13.5
188	Conroe Texas, United States	13.5
188	Higashigō Saga, Japan	13.5
192	Riga Riga, Latvia	13.4
192	Reykjavík Capital Region, Iceland	13.4
194	Kaunas Kaunas, Lithuania	13.3
194	Teltow Brandenburg, Germany	13.3
194	Avignon Provence-Alpes-Côte d'Azur, France	13.3
194	Ciudad Juárez Chihuahua, Mexico	13.3
194	Helena Montana, United States	13.3
199	Prešov Prešov Region, Slovakia	13.2
199	Obihiro Hokkaido, Japan	13.2

Top 200 of 1,860 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