SmogRank / History / week of April 22, 2024

Most polluted cities, week of April 22, 2024

1,980 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	N'Djamena N’Djaména, Chad	188.6
2	Kathmandu low-cost sensors Bagmati Province, Nepal	103.0
3	Chiang Mai low-cost sensors Chiang Mai, Thailand	80.1
4	Tlaquepaque Jalisco, Mexico	78.0
5	Dhaka low-cost sensors Dhaka Division, Bangladesh	69.1
6	Beijing Beijing, China	57.4
7	Santa Anita - Los Ficus Lima region, Peru	57.1
8	Tha Bo Nong Khai, Thailand	55.9
9	Hanoi Hanoi, Vietnam	53.6
10	Delhi Delhi, India	52.4
11	Baghdad Baghdad, Iraq	50.8
12	Cairo Cairo, Egypt	49.7
13	Hyderabad Telangana, India	48.8
14	Kolkata West Bengal, India	48.3
15	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	43.0
16	Jakarta Jakarta, Indonesia	41.2
17	Yangon Yangon, Myanmar	37.5
18	Ciudad Juárez Chihuahua, Mexico	36.4
19	Lima Lima Province, Peru	31.4
20	Villa Poeta José Gálvez Barrenechea Lima region, Peru	30.0
21	Shenyang Liaoning, China	29.7
22	Karachi low-cost sensors Sindh, Pakistan	28.7
23	Jacobo Hunter Arequipa, Peru	28.3
24	Guatemala City Guatemala, Guatemala	27.9
25	Rabinal Baja Verapaz, Guatemala	27.4
26	Novi Pazar Central Serbia, Serbia	27.2
27	Sarajevo Federation of B&H, Bosnia and Herzegovina	27.1
28	Bangkok low-cost sensors Bangkok, Thailand	26.4
29	Jeddah Mecca Region, Saudi Arabia	26.2
30	Mumbai Maharashtra, India	26.0
31	Antananarivo Analamanga, Madagascar	25.9
32	Celaya Guanajuato, Mexico	25.8
33	Athens Attica, Greece	25.2
34	Abuja low-cost sensors FCT, Nigeria	25.0
35	Addis Ababa Addis Ababa, Ethiopia	24.1
36	Valjevo Central Serbia, Serbia	23.8
37	Shanghai Shanghai, China	23.7
38	Benevento Campania, Italy	23.6
39	Alessandria Piedmont, Italy	23.5
40	Ciudad Benito Juárez Nuevo León, Mexico	23.0
41	Guangzhou Guangdong, China	22.9
42	Salamanca Guanajuato, Mexico	22.2
43	Islamabad low-cost sensors Islamabad, Pakistan	22.1
43	Kourou Guyane, French Guiana	22.1
45	Acharnés Attica, Greece	21.4
45	Baku Baki, Azerbaijan	21.4
47	Działdowo Warmia-Masuria, Poland	21.0
47	Mission Texas, United States	21.0
47	San Francisco De Borja Lima region, Peru	21.0
50	Wan Chai Wan Chai, Hong Kong	20.9
50	Aguascalientes Aguascalientes, Mexico	20.9
52	Katowice Silesia, Poland	20.6
53	Racibórz Silesia, Poland	20.5
53	Belmopan Cayo District, Belize	20.5
55	Skarżysko-Kamienna Świętokrzyskie, Poland	20.4
55	Astana Astana, Kazakhstan	20.4
55	Shikokuchūō Ehime, Japan	20.4
58	Bielsko-Biala Silesia, Poland	20.1
59	Dushanbe Dushanbe, Tajikistan	19.9
60	León de los Aldama Guanajuato, Mexico	19.7
60	Edinburg Texas, United States	19.7
62	Socorro Texas, United States	19.6
63	Smederevo Central Serbia, Serbia	19.5
64	Saijō Ehime, Japan	19.4
65	Włocławek Kujawsko-Pomorskie, Poland	19.3
66	Colombo Western Province, Sri Lanka	19.2
66	Shulin Taipei, Taiwan	19.2
68	Jastrzębie Zdrój Silesia, Poland	19.1
69	Užice Central Serbia, Serbia	19.0
70	Lazarevac Central Serbia, Serbia	18.8
70	Niihama Ehime, Japan	18.8
70	Santa Catarina Nuevo León, Mexico	18.8
73	Jarosław Subcarpathia, Poland	18.7
74	Ashgabat Ashgabat, Turkmenistan	18.6
74	Piraeus Attica, Greece	18.6
74	Laredo Texas, United States	18.6
77	Łuków Lublin, Poland	18.4
77	Dębica Subcarpathia, Poland	18.4
77	Chocope La Libertad, Peru	18.4
80	Khalándrion Attica, Greece	18.3
80	Tallahassee Florida, United States	18.3
82	Nisko Subcarpathia, Poland	18.2
83	Zgierz Łódź Voivodeship, Poland	18.1
84	Taibao Taiwan, Taiwan	18.0
84	Toruń Kujawsko-Pomorskie, Poland	18.0
84	Irapuato Guanajuato, Mexico	18.0
87	Zhushan Taiwan, Taiwan	17.9
87	Poznań Greater Poland, Poland	17.9
89	Pirot Central Serbia, Serbia	17.8
90	Beigang Taiwan, Taiwan	17.7
90	Gdynia Pomerania, Poland	17.7
92	Yongkang Taiwan, Taiwan	17.6
93	Siedlce Mazovia, Poland	17.5
93	Taipei Taiwan, Taiwan	17.5
93	Wangaratta Victoria, Australia	17.5
93	Taoyuan Taiwan, Taiwan	17.5
97	Lębork Pomerania, Poland	17.4
98	Otwock Mazovia, Poland	17.2
98	Xinying Taiwan, Taiwan	17.2
98	Fengshan Takao, Taiwan	17.2
98	Kutno Łódź Voivodeship, Poland	17.2
102	Erlin Taiwan, Taiwan	17.1
102	Łask Łódź Voivodeship, Poland	17.1
102	Kalisz Greater Poland, Poland	17.1
105	Zamość Lublin, Poland	17.0
105	Erlun Taiwan, Taiwan	17.0
105	Kłodzko Lower Silesia, Poland	17.0
108	Yuanlin Taiwan, Taiwan	16.9
108	Gdańsk Pomerania, Poland	16.9
110	Zhubei Taiwan, Taiwan	16.8
110	Kościan Greater Poland, Poland	16.8
112	Pruszków Mazovia, Poland	16.7
112	Niš Central Serbia, Serbia	16.7
112	Ban Khlong Prawet low-cost sensors Bangkok, Thailand	16.7
112	Kraków Lesser Poland, Poland	16.7
116	Zemun Central Serbia, Serbia	16.6
116	Pančevo Vojvodina, Serbia	16.6
116	Ourense Galicia, Spain	16.6
116	New Taipei City Taipei, Taiwan	16.6
120	Radom Mazovia, Poland	16.5
120	Hsinchu Taiwan, Taiwan	16.5
122	Ćuprija Central Serbia, Serbia	16.4
122	Zielona Góra Lubusz, Poland	16.4
124	Douliu Taiwan, Taiwan	16.3
124	Neili Taiwan, Taiwan	16.3
124	Jincheng Fukien, Taiwan	16.3
127	Tainan Taiwan, Taiwan	16.2
127	São Paulo São Paulo, Brazil	16.2
129	Xizhi Taipei, Taiwan	16.0
130	Starachowice Świętokrzyskie, Poland	15.9
130	Legionowo Mazovia, Poland	15.9
130	Kaohsiung Takao, Taiwan	15.9
130	Kościerzyna Pomerania, Poland	15.9
130	Callao Callao, Peru	15.9
135	Richards Bay low-cost sensors KwaZulu-Natal, South Africa	15.8
135	Kure Hiroshima, Japan	15.8
135	Kan’onjichō Kagawa, Japan	15.8
138	Hualien City Taiwan, Taiwan	15.7
138	Chiayi City Taiwan, Taiwan	15.7
138	Czechowice-Dziedzice Silesia, Poland	15.7
138	Lawrenceville Georgia, United States	15.7
142	Konstancin-Jeziorna Mazovia, Poland	15.6
142	Český Těšín Moravian-Silesian Region, Czechia	15.6
144	Kampala low-cost sensors Central Region, Uganda	15.5
144	Asprópyrgos Attica, Greece	15.5
144	Miaoli Taiwan, Taiwan	15.5
147	Lublin Lublin, Poland	15.4
147	Belgrade Central Serbia, Serbia	15.4
147	Nagai Yamagata, Japan	15.4
147	Indio California, United States	15.4
151	Changhua Taiwan, Taiwan	15.3
151	Corpus Christi Texas, United States	15.3
153	Toufen Taiwan, Taiwan	15.2
153	Birmingham Alabama, United States	15.2
153	Eagle Pass Texas, United States	15.2
156	Koprivnica Koprivnica-Križevci, Croatia	15.1
156	Live Oak Texas, United States	15.1
158	Obrenovac Central Serbia, Serbia	14.9
158	Mong Kok Yau Tsim Mong District, Hong Kong	14.9
160	Mielec Subcarpathia, Poland	14.8
160	Čačak Central Serbia, Serbia	14.8
160	Kędzierzyn-Koźle Opole Voivodeship, Poland	14.8
160	Bydgoszcz Kujawsko-Pomorskie, Poland	14.8
164	Grajewo Podlasie, Poland	14.7
164	Jurong West Singapore	14.7
164	Frýdek-Místek Moravian-Silesian Region, Czechia	14.7
164	Gorzów Wielkopolski Lubusz, Poland	14.7
164	Ciudad General Escobedo Nuevo León, Mexico	14.7
169	Żyrardów Mazovia, Poland	14.6
169	Nakatsu Oita, Japan	14.6
169	Kasaoka Okayama, Japan	14.6
169	Ostrava Moravian-Silesian Region, Czechia	14.6
169	Náchod Hradec Králové Region, Czechia	14.6
174	Przemyśl Subcarpathia, Poland	14.5
174	Taichung Taiwan, Taiwan	14.5
174	Daxi Taiwan, Taiwan	14.5
174	Zhudong Taiwan, Taiwan	14.5
174	Havířov Moravian-Silesian Region, Czechia	14.5
174	Ayase Kanagawa, Japan	14.5
180	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	14.4
180	Matsuyama Ehime, Japan	14.4
180	Sopot Pomerania, Poland	14.4
183	Quezon City low-cost sensors National Capital Region, Philippines	14.3
183	Bohumín Moravian-Silesian Region, Czechia	14.3
185	Rzeszów Subcarpathia, Poland	14.2
185	Buzi Taiwan, Taiwan	14.2
185	Chaozhou Taiwan, Taiwan	14.2
185	Tuen Mun Tuen Mun, Hong Kong	14.2
185	Takehara Hiroshima, Japan	14.2
185	Třinec Moravian-Silesian Region, Czechia	14.2
191	Tsurusaki Oita, Japan	14.1
191	Ōtsuki Yamanashi, Japan	14.1
191	Ang Mo Kio New Town Singapore	14.1
191	Valašské Meziříčí Zlín, Czechia	14.1
191	Szczecin West Pomerania, Poland	14.1
191	Opole Opole Voivodeship, Poland	14.1
197	Liepāja Liepaja, Latvia	14.0
197	Abasolo Guanajuato, Mexico	14.0
197	Augusta Georgia, United States	14.0
200	Kragujevac Central Serbia, Serbia	13.9

Top 200 of 1,980 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