SmogRank / History / week of December 4, 2023

Most polluted cities, week of December 4, 2023

1,903 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	Ramos Arizpe Coahuila, Mexico	382.0
2	Lahore low-cost sensors Punjab, Pakistan	227.6
3	Delhi Delhi, India	153.4
4	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	110.4
5	Islamabad low-cost sensors Islamabad, Pakistan	108.0
6	Dhaka low-cost sensors Dhaka Division, Bangladesh	102.9
7	Cairo Cairo, Egypt	102.5
8	N'Djamena N’Djaména, Chad	98.1
9	Karachi low-cost sensors Sindh, Pakistan	93.8
10	Kolkata West Bengal, India	89.7
11	Dushanbe Dushanbe, Tajikistan	78.8
12	Banja Luka Srpska, Bosnia and Herzegovina	78.6
13	Kathmandu low-cost sensors Bagmati Province, Nepal	78.5
14	Sarajevo Federation of B&H, Bosnia and Herzegovina	77.6
15	Beijing Beijing, China	75.1
16	Ulan Bator Ulaanbaatar, Mongolia	69.3
17	Mumbai Maharashtra, India	63.2
18	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	62.1
19	Manama Manama, Bahrain	59.4
20	Tetovo Tetovo, North Macedonia	56.9
21	Havířov Moravian-Silesian Region, Czechia	56.3
22	Abuja low-cost sensors FCT, Nigeria	53.9
23	Bohumín Moravian-Silesian Region, Czechia	53.6
24	Český Těšín Moravian-Silesian Region, Czechia	52.3
25	Ostrava Moravian-Silesian Region, Czechia	50.4
26	Frýdek-Místek Moravian-Silesian Region, Czechia	46.8
27	Skopje Grad Skopje, North Macedonia	46.6
28	Jakarta Jakarta, Indonesia	45.5
29	Hyderabad Telangana, India	45.3
30	Bitola Bitola, North Macedonia	42.7
31	Spišská Nová Ves Košice Region, Slovakia	42.2
32	Opava Moravian-Silesian Region, Czechia	41.6
33	Shenyang Liaoning, China	41.5
34	Niš Central Serbia, Serbia	40.4
35	Ciudad Benito Juárez Nuevo León, Mexico	38.4
36	Teplice Ústí nad Labem Region, Czechia	38.2
37	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	37.4
37	Bangkok low-cost sensors Bangkok, Thailand	37.4
39	Žilina Žilina Region, Slovakia	37.3
39	Přerov Olomouc Region, Czechia	37.3
41	Martin Žilina Region, Slovakia	37.2
42	Třinec Moravian-Silesian Region, Czechia	37.1
43	Olomouc Olomouc Region, Czechia	36.4
44	Veles Veles, North Macedonia	36.1
45	Most Ústí nad Labem Region, Czechia	35.9
46	Ilinden Ilinden, North Macedonia	35.4
47	Stralsund Mecklenburg-Vorpommern, Germany	35.3
48	Dej Cluj County, Romania	35.2
49	Belgrade Central Serbia, Serbia	34.7
49	Capannori Tuscany, Italy	34.7
51	Ružomberok Žilina Region, Slovakia	34.3
51	Litvínov Ústí nad Labem Region, Czechia	34.3
53	Kavadarci Kavadarci, North Macedonia	33.9
53	Chiang Mai low-cost sensors Chiang Mai, Thailand	33.9
53	Děčín Ústí nad Labem Region, Czechia	33.9
56	Eisenhüttenstadt Brandenburg, Germany	33.3
57	Graz Styria, Austria	33.0
58	Victoria de Durango Durango, Mexico	32.9
59	Valašské Meziříčí Zlín, Czechia	32.5
60	Beroun Central Bohemia, Czechia	32.3
61	Ústí nad Labem Ústí nad Labem Region, Czechia	32.0
62	Miskolc Borsod-Abaúj-Zemplén, Hungary	31.6
63	Rostock Mecklenburg-Vorpommern, Germany	31.3
64	Wan Chai Wan Chai, Hong Kong	31.0
64	Frankfurt (Oder) Brandenburg, Germany	31.0
66	Kigali Kigali, Rwanda	30.9
67	Benevento Campania, Italy	30.6
68	Prešov Prešov Region, Slovakia	30.5
69	Schwedt (Oder) Brandenburg, Germany	30.4
70	Humenné Prešov Region, Slovakia	30.3
71	Traun Upper Austria, Austria	29.4
72	Botevgrad low-cost sensors Sofia, Bulgaria	29.3
73	Kochani Kochani, North Macedonia	29.2
74	Montemurlo Tuscany, Italy	29.1
74	Alessandria Piedmont, Italy	29.1
76	Jeddah Mecca Region, Saudi Arabia	29.0
77	Guangzhou Guangdong, China	28.9
77	Wismar Mecklenburg-Vorpommern, Germany	28.9
79	Turin Piedmont, Italy	28.8
80	Almaty low-cost sensors Almaty, Kazakhstan	28.6
81	Košice Košice Region, Slovakia	28.3
81	Manlleu Catalonia, Spain	28.3
83	Ansfelden Upper Austria, Austria	27.8
84	Haskovo low-cost sensors Haskovo, Bulgaria	27.7
85	Novi Sad Vojvodina, Serbia	27.6
86	Kiel Schleswig-Holstein, Germany	27.4
87	Güstrow Mecklenburg-Vorpommern, Germany	27.2
88	Tuen Mun Tuen Mun, Hong Kong	27.0
88	Cholula Puebla, Mexico	27.0
90	Znojmo South Moravian, Czechia	26.7
91	Kadaň Ústí nad Labem Region, Czechia	26.6
92	Lübeck Schleswig-Holstein, Germany	26.5
92	Ciudad Apodaca Nuevo León, Mexico	26.5
94	Mladá Boleslav Central Bohemia, Czechia	26.3
95	Yangon Yangon, Myanmar	26.2
96	Zlín Zlín, Czechia	26.0
96	Santa Catarina Nuevo León, Mexico	26.0
98	Mong Kok Yau Tsim Mong District, Hong Kong	25.9
98	Kladno Central Bohemia, Czechia	25.9
100	Eberswalde Brandenburg, Germany	25.8
101	Partizánske Trenčín Region, Slovakia	25.7
102	Kroměříž Zlín, Czechia	25.6
103	Židenice South Moravian, Czechia	25.4
104	Zvolen Banská Bystrica Region, Slovakia	25.2
105	Badger Alaska, United States	25.0
106	Tlaquepaque Jalisco, Mexico	24.8
107	Vranov nad Topľou Prešov Region, Slovakia	24.6
107	Wels Upper Austria, Austria	24.6
107	Passau Bavaria, Germany	24.6
107	Ciudad Juárez Chihuahua, Mexico	24.6
111	Hradec Králové Hradec Králové Region, Czechia	24.2
111	Naples Campania, Italy	24.2
113	Linz Upper Austria, Austria	24.1
114	Addis Ababa Addis Ababa, Ethiopia	24.0
114	Pardubice Pardubice Region, Czechia	24.0
116	Bernau bei Berlin Brandenburg, Germany	23.6
117	Nyíregyháza Szabolcs-Szatmár-Bereg, Hungary	23.5
118	Victoria Central and Western, Hong Kong	23.4
118	České Budějovice South Bohemian Region, Czechia	23.4
120	Ban Khlong Prawet low-cost sensors Bangkok, Thailand	23.2
120	Sankt Pölten Lower Austria, Austria	23.2
120	Brno South Moravian, Czechia	23.2
120	Tijuana Baja California, Mexico	23.2
124	Sham Shui Po Sham Shui Po District, Hong Kong	23.1
124	Mexicali Baja California, Mexico	23.1
126	Itzehoe Schleswig-Holstein, Germany	22.8
126	Berlin State of Berlin, Germany	22.8
126	Trnava Trnava Region, Slovakia	22.8
126	Trenčín Trenčín Region, Slovakia	22.8
130	Antananarivo Analamanga, Madagascar	22.7
130	Banská Bystrica Banská Bystrica Region, Slovakia	22.7
132	Cluj-Napoca Cluj County, Romania	22.6
132	Amstetten Lower Austria, Austria	22.6
134	Klosterneuburg Lower Austria, Austria	22.5
134	Monterrey Nuevo León, Mexico	22.5
136	Prievidza Trenčín Region, Slovakia	22.3
136	Zapopan Jalisco, Mexico	22.3
136	Chikusei Ibaraki, Japan	22.3
136	San Salvador Tizatlalli México, Mexico	22.3
140	Kwai Chung Kwai Tsing District, Hong Kong	22.2
140	Pesaro The Marches, Italy	22.2
142	Tin Shui Wai Yuen Long, Hong Kong	22.1
142	Kasaoka Okayama, Japan	22.1
142	Wolfsberg Carinthia, Austria	22.1
142	Massa Tuscany, Italy	22.1
142	Falconara Marittima The Marches, Italy	22.1
147	Gabrovo low-cost sensors Gabrovo, Bulgaria	22.0
147	Teltow Brandenburg, Germany	22.0
149	Tsuen Wan Tsuen Wan, Hong Kong	21.9
149	Lagos low-cost sensors Lagos, Nigeria	21.9
149	Strausberg Brandenburg, Germany	21.9
149	San Francisco Tlalcilalcalpan México, Mexico	21.9
153	Baku Baki, Azerbaijan	21.8
153	Pilsen Plzeň Region, Czechia	21.8
155	Neuruppin Brandenburg, Germany	21.7
155	Toluca México, Mexico	21.7
157	Prague Prague, Czechia	21.5
158	Kan’onjichō Kagawa, Japan	21.4
158	Cadereyta Jiménez Nuevo León, Mexico	21.4
160	Sau Mau Ping Kwun Tong District, Hong Kong	21.2
160	Hamburg Hamburg, Germany	21.2
162	Fanling North District, Hong Kong	21.1
162	Esztergom Komárom-Esztergom, Hungary	21.1
164	Volos Thessaly, Greece	20.8
164	Pátra West Greece, Greece	20.8
166	Mödling Lower Austria, Austria	20.7
166	Dunaújváros Fejér, Hungary	20.7
166	Nitra Nitra Region, Slovakia	20.7
169	Tai Po Tai Po, Hong Kong	20.6
170	Steyr Upper Austria, Austria	20.5
170	Karlova Ves Bratislava Region, Slovakia	20.5
170	Mollet del Vallès Catalonia, Spain	20.5
173	Murcia Murcia, Spain	20.4
173	Neuenhagen Brandenburg, Germany	20.4
173	Ciudad General Escobedo Nuevo León, Mexico	20.4
176	Kurashiki Okayama, Japan	20.3
177	Perchtoldsdorf Lower Austria, Austria	20.2
177	Bratislava Bratislava Region, Slovakia	20.2
177	Bakersfield California, United States	20.2
180	Sha Tin Sha Tin, Hong Kong	20.0
180	Žiar nad Hronom Banská Bystrica Region, Slovakia	20.0
180	Arezzo Tuscany, Italy	20.0
183	Senica Trnava Region, Slovakia	19.9
183	Handlová Trenčín Region, Slovakia	19.9
183	Liberpolis County of Osijek-Baranja, Croatia	19.9
186	Sōja Okayama, Japan	19.8
187	Klagenfurt am Wörthersee Carinthia, Austria	19.7
188	Prato Tuscany, Italy	19.6
189	Thessaloníki Central Macedonia, Greece	19.5
189	Flensburg Schleswig-Holstein, Germany	19.5
191	Fukuyama Hiroshima, Japan	19.4
192	Klaipėda Klaipėda County, Lithuania	19.3
192	Győr Győr-Moson-Sopron, Hungary	19.3
192	Ceglie Messapica Apulia, Italy	19.3
192	Hanford California, United States	19.3
196	Vienna Vienna, Austria	19.1
197	Asakuchi Okayama, Japan	19.0
198	Ventspils Ventspils, Latvia	18.8
199	Kleinmachnow Brandenburg, Germany	18.7
199	Falkensee Brandenburg, Germany	18.7

Top 200 of 1,903 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