SmogRank / History / week of October 9, 2023

Most polluted cities, week of October 9, 2023

1,740 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	Dhaka low-cost sensors Dhaka Division, Bangladesh	109.8
2	N'Djamena N’Djaména, Chad	99.8
3	Kolkata West Bengal, India	81.9
4	Delhi Delhi, India	81.5
5	Lahore low-cost sensors Punjab, Pakistan	74.5
6	Hyderabad Telangana, India	70.7
7	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	64.8
8	Antananarivo Analamanga, Madagascar	63.2
9	Jakarta Jakarta, Indonesia	50.3
10	Cairo Cairo, Egypt	49.7
11	Manama Manama, Bahrain	49.0
12	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	47.7
13	Bamako Bamako, Mali	46.8
14	Shenyang Liaoning, China	45.7
15	Mumbai Maharashtra, India	44.4
16	Dushanbe Dushanbe, Tajikistan	43.3
17	Kathmandu low-cost sensors Bagmati Province, Nepal	40.7
18	Kampala low-cost sensors Central Region, Uganda	38.9
19	Santa Anita - Los Ficus Lima region, Peru	37.6
20	Hanoi Hanoi, Vietnam	34.9
21	Islamabad low-cost sensors Islamabad, Pakistan	34.7
22	Pristina Pristina, Kosovo	33.1
23	Salor Tashkent Region, Uzbekistan	31.9
24	Ulu Bedok Singapore	31.4
25	Lima Lima Province, Peru	31.3
26	Ang Mo Kio New Town Singapore	31.2
27	Villa Poeta José Gálvez Barrenechea Lima region, Peru	31.1
28	Beijing Beijing, China	30.7
29	Sarajevo Federation of B&H, Bosnia and Herzegovina	30.3
30	Abuja low-cost sensors FCT, Nigeria	29.6
31	Callao Callao, Peru	29.1
32	Mexicali Baja California, Mexico	29.0
33	Karachi low-cost sensors Sindh, Pakistan	28.8
34	Victoria de Durango Durango, Mexico	27.8
35	Jeddah Mecca Region, Saudi Arabia	27.4
36	Guangzhou Guangdong, China	26.0
37	Queenstown Estate low-cost sensors Singapore	24.7
38	Tetovo Tetovo, North Macedonia	24.3
39	Ashgabat Ashgabat, Turkmenistan	24.0
40	Bangkok low-cost sensors Bangkok, Thailand	23.4
41	Addis Ababa Addis Ababa, Ethiopia	22.4
42	Naples Campania, Italy	22.2
43	Santa Catarina Nuevo León, Mexico	21.7
43	San Francisco De Borja Lima region, Peru	21.7
45	Nairobi Nairobi County, Kenya	20.7
45	Kuala Lumpur low-cost sensors Kuala Lumpur, Malaysia	20.7
45	Żabbar Ħaż-Żabbar, Malta	20.7
48	Tha Bo Nong Khai, Thailand	20.4
49	Falconara Marittima The Marches, Italy	19.9
50	Ciudad Benito Juárez Nuevo León, Mexico	19.7
51	Belgrade Central Serbia, Serbia	19.5
51	Ciudad Apodaca Nuevo León, Mexico	19.5
53	Vigo Galicia, Spain	19.2
54	Algiers Algiers, Algeria	19.0
55	Baku Baki, Azerbaijan	18.8
56	Salamanca Guanajuato, Mexico	18.7
57	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	18.3
57	Skopje Grad Skopje, North Macedonia	18.3
59	Banja Luka Srpska, Bosnia and Herzegovina	18.2
60	Toluca México, Mexico	18.1
61	Athens Attica, Greece	18.0
62	Tijuana Baja California, Mexico	17.8
63	Cuernavaca Morelos, Mexico	17.7
64	Sliema Tas-Sliema, Malta	17.6
65	Granadilla de Abona Canary Islands, Spain	17.5
65	Cardiff Wales, United Kingdom	17.5
65	San Francisco Tlalcilalcalpan México, Mexico	17.5
68	Miskolc Borsod-Abaúj-Zemplén, Hungary	17.4
69	Ilinden Ilinden, North Macedonia	17.3
70	Valdemoro Madrid, Spain	17.2
70	Novi Sad Vojvodina, Serbia	17.2
70	San Salvador Tizatlalli México, Mexico	17.2
73	Alessandria Piedmont, Italy	17.1
74	Asprópyrgos Attica, Greece	17.0
74	Bitola Bitola, North Macedonia	17.0
74	Woodlands Singapore	17.0
74	Trnava Trnava Region, Slovakia	17.0
78	Niš Central Serbia, Serbia	16.9
79	Trento Trentino-Alto Adige, Italy	16.8
80	Móstoles Madrid, Spain	16.7
81	Szeged Csongrád, Hungary	16.5
81	Colombo Western Province, Sri Lanka	16.5
83	Salerno Campania, Italy	16.4
84	Ruse Ruse, Bulgaria	16.3
85	Civitanova Marche The Marches, Italy	16.2
86	Cuenca Castille-La Mancha, Spain	16.1
87	Mosta Il-Mosta, Malta	16.0
87	Monterrey Nuevo León, Mexico	16.0
89	Cholula Puebla, Mexico	15.9
90	Santa Cruz de Tenerife Canary Islands, Spain	15.8
90	Benevento Campania, Italy	15.8
92	Thessaloníki Central Macedonia, Greece	15.7
93	Perpignan Occitanie, France	15.6
94	Funchal Madeira, Portugal	15.5
94	Děčín Ústí nad Labem Region, Czechia	15.5
94	Ciudad General Escobedo Nuevo León, Mexico	15.5
94	Calexico California, United States	15.5
98	Coslada Madrid, Spain	15.4
98	Turin Piedmont, Italy	15.4
100	Oviedo Asturias, Spain	15.3
101	Jurong West Singapore	15.2
101	Alcalá de Henares Madrid, Spain	15.2
101	Birmingham Alabama, United States	15.2
104	Košice Košice Region, Slovakia	15.1
104	Izegem Flanders, Belgium	15.1
104	Rovereto Trentino-Alto Adige, Italy	15.1
107	Humenné Prešov Region, Slovakia	15.0
107	Gyál Pest County, Hungary	15.0
109	Avignon Provence-Alpes-Côte d'Azur, France	14.7
109	Jardines de la Silla Nuevo León, Mexico	14.7
111	Jesi The Marches, Italy	14.6
112	Prešov Prešov Region, Slovakia	14.5
112	Montemurlo Tuscany, Italy	14.5
114	Bolzano Trentino-Alto Adige, Italy	14.4
115	Olomouc Olomouc Region, Czechia	14.3
115	Asunción low-cost sensors Asuncion, Paraguay	14.3
117	Cluj-Napoca Cluj County, Romania	14.2
117	Ancona The Marches, Italy	14.2
117	San Luis Potosí San Luis Potosí, Mexico	14.2
120	Nyíregyháza Szabolcs-Szatmár-Bereg, Hungary	14.1
120	Dunaújváros Fejér, Hungary	14.1
122	Trenčín Trenčín Region, Slovakia	14.0
123	Pátra West Greece, Greece	13.9
123	Amora Setúbal, Portugal	13.9
123	Opava Moravian-Silesian Region, Czechia	13.9
126	Kavadarci Kavadarci, North Macedonia	13.8
127	Veles Veles, North Macedonia	13.7
127	Nitra Nitra Region, Slovakia	13.7
127	Beroun Central Bohemia, Czechia	13.7
127	Caserta Campania, Italy	13.7
127	Anaheim California, United States	13.7
132	San Isidro Canary Islands, Spain	13.6
132	Algete Madrid, Spain	13.6
132	La Spezia Liguria, Italy	13.6
132	Celaya Guanajuato, Mexico	13.6
132	Compton California, United States	13.6
137	Přerov Olomouc Region, Czechia	13.5
137	Fontana California, United States	13.5
139	Sainte-Geneviève-des-Bois Île-de-France, France	13.4
139	Pécs Baranya, Hungary	13.4
139	Prato Tuscany, Italy	13.4
139	Florence Tuscany, Italy	13.4
143	Candelaria Canary Islands, Spain	13.3
143	Nice Provence-Alpes-Côte d'Azur, France	13.3
143	Arles Provence-Alpes-Côte d'Azur, France	13.3
143	Esztergom Komárom-Esztergom, Hungary	13.3
143	Hernando Mississippi, United States	13.3
148	Graz Styria, Austria	13.2
148	Marseille Provence-Alpes-Côte d'Azur, France	13.2
148	Valašské Meziříčí Zlín, Czechia	13.2
151	Spišská Nová Ves Košice Region, Slovakia	13.1
151	Wolfsberg Carinthia, Austria	13.1
151	Pesaro The Marches, Italy	13.1
154	Collado-Villalba Madrid, Spain	13.0
155	Linz Upper Austria, Austria	12.9
155	Martin Žilina Region, Slovakia	12.9
155	Palencia Castille and León, Spain	12.9
155	Medina del Campo Castille and León, Spain	12.9
155	Jurupa Valley California, United States	12.9
160	Brno South Moravian, Czechia	12.8
160	Los Angeles California, United States	12.8
162	Almaty low-cost sensors Almaty, Kazakhstan	12.7
162	Nagai Yamagata, Japan	12.7
162	Torrevieja Valencia, Spain	12.7
162	Senica Trnava Region, Slovakia	12.7
162	Capannori Tuscany, Italy	12.7
167	Lisbon Lisbon, Portugal	12.6
167	Waregem Flanders, Belgium	12.6
167	Ostrava Moravian-Silesian Region, Czechia	12.6
167	Pisa Tuscany, Italy	12.6
171	Piraeus Attica, Greece	12.5
171	Traun Upper Austria, Austria	12.5
171	Ansfelden Upper Austria, Austria	12.5
171	Menen Flanders, Belgium	12.5
171	Valenciennes Hauts-de-France, France	12.5
171	Zvolen Banská Bystrica Region, Slovakia	12.5
171	Madrid Madrid, Spain	12.5
178	Lochristi Flanders, Belgium	12.4
178	Evergem Flanders, Belgium	12.4
178	Durango Basque Country, Spain	12.4
181	Roubaix Hauts-de-France, France	12.3
181	Lunel Occitanie, France	12.3
181	Žilina Žilina Region, Slovakia	12.3
184	Vranov nad Topľou Prešov Region, Slovakia	12.2
184	Cacém Lisbon, Portugal	12.2
184	Klagenfurt am Wörthersee Carinthia, Austria	12.2
184	Stabroek Flanders, Belgium	12.2
184	Valence Auvergne-Rhône-Alpes, France	12.2
184	Romans-sur-Isère Auvergne-Rhône-Alpes, France	12.2
184	Lormont New Aquitaine, France	12.2
191	Znojmo South Moravian, Czechia	12.1
192	Bellinzona Ticino, Switzerland	12.0
192	Weiden Bavaria, Germany	12.0
192	Fos-sur-Mer Provence-Alpes-Côte d'Azur, France	12.0
192	Prievidza Trenčín Region, Slovakia	12.0
192	Židenice South Moravian, Czechia	12.0
197	Kelheim Bavaria, Germany	11.9
197	Montpellier Occitanie, France	11.9
197	Lyon Auvergne-Rhône-Alpes, France	11.9
197	Dunkirk Hauts-de-France, France	11.9

Top 200 of 1,740 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