SmogRank / History / week of March 18, 2024

Most polluted cities, week of March 18, 2024

1,351 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	240.0
2	Kampala low-cost sensors Central Region, Uganda	183.6
3	Dhaka low-cost sensors Dhaka Division, Bangladesh	114.1
4	Lahore low-cost sensors Punjab, Pakistan	98.9
5	Chiang Mai low-cost sensors Chiang Mai, Thailand	90.4
6	Delhi Delhi, India	89.9
7	Kathmandu low-cost sensors Bagmati Province, Nepal	86.2
8	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	58.5
9	Beijing Beijing, China	47.1
10	Mumbai Maharashtra, India	46.2
11	Yangon Yangon, Myanmar	45.3
12	Bangkok low-cost sensors Bangkok, Thailand	42.7
13	Hanoi Hanoi, Vietnam	42.0
14	Hyderabad Telangana, India	41.3
15	Islamabad low-cost sensors Islamabad, Pakistan	40.5
16	Astana Astana, Kazakhstan	40.1
17	Kigali Kigali, Rwanda	40.0
18	Karachi low-cost sensors Sindh, Pakistan	37.3
19	Shanghai Shanghai, China	37.1
20	Shenyang Liaoning, China	36.5
21	Tha Bo Nong Khai, Thailand	36.2
22	Ashgabat Ashgabat, Turkmenistan	35.5
23	Działdowo Warmia-Masuria, Poland	34.1
24	Cairo Cairo, Egypt	33.2
25	Baghdad Baghdad, Iraq	33.0
26	Rabinal Baja Verapaz, Guatemala	32.7
27	Zgierz Łódź Voivodeship, Poland	32.4
28	Sarajevo Federation of B&H, Bosnia and Herzegovina	31.3
29	Pančevo Vojvodina, Serbia	31.2
30	Ulan Bator Ulaanbaatar, Mongolia	31.1
30	Łask Łódź Voivodeship, Poland	31.1
32	Colombo Western Province, Sri Lanka	30.3
33	Lazarevac Central Serbia, Serbia	30.0
34	Guatemala City Guatemala, Guatemala	29.9
35	Zemun Central Serbia, Serbia	29.8
36	Accra low-cost sensors Greater Accra, Ghana	29.1
37	Kutno Łódź Voivodeship, Poland	28.6
38	Żywiec Silesia, Poland	28.4
39	Włocławek Kujawsko-Pomorskie, Poland	28.3
40	Banja Luka Srpska, Bosnia and Herzegovina	28.2
41	Bielsko-Biala Silesia, Poland	28.1
42	Kościan Greater Poland, Poland	27.8
43	Racibórz Silesia, Poland	27.0
44	Erlin Taiwan, Taiwan	26.8
44	Katowice Silesia, Poland	26.8
44	Celaya Guanajuato, Mexico	26.8
47	Siedlce Mazovia, Poland	26.6
48	Kraków Lesser Poland, Poland	26.3
49	Lublin Lublin, Poland	26.2
50	Ciudad Juárez Chihuahua, Mexico	26.1
51	Zhushan Taiwan, Taiwan	26.0
52	Jakarta Jakarta, Indonesia	25.9
52	Jastrzębie Zdrój Silesia, Poland	25.9
54	Kłodzko Lower Silesia, Poland	25.5
55	Chennai Tamil Nadu, India	25.4
55	Ban Khlong Prawet low-cost sensors Bangkok, Thailand	25.4
57	Zamość Lublin, Poland	25.3
57	Kalisz Greater Poland, Poland	25.3
57	Czechowice-Dziedzice Silesia, Poland	25.3
60	Łuków Lublin, Poland	25.2
60	Radomsko Łódź Voivodeship, Poland	25.2
62	Algiers Algiers, Algeria	25.0
63	Grajewo Podlasie, Poland	24.9
64	Skarżysko-Kamienna Świętokrzyskie, Poland	24.7
65	Náchod Hradec Králové Region, Czechia	24.6
66	Belgrade Central Serbia, Serbia	24.5
67	Lębork Pomerania, Poland	24.2
68	Beigang Taiwan, Taiwan	23.9
69	Yongkang Taiwan, Taiwan	23.8
69	Jincheng Fukien, Taiwan	23.8
71	Taibao Taiwan, Taiwan	23.6
71	Guangzhou Guangdong, China	23.6
73	Otwock Mazovia, Poland	23.4
73	Erlun Taiwan, Taiwan	23.4
73	Poznań Greater Poland, Poland	23.4
76	Nisko Subcarpathia, Poland	23.1
76	Sremčica Central Serbia, Serbia	23.1
76	Yuanlin Taiwan, Taiwan	23.1
79	Pruszków Mazovia, Poland	23.0
79	Douliu Taiwan, Taiwan	23.0
79	Fengshan Takao, Taiwan	23.0
79	Chiayi City Taiwan, Taiwan	23.0
83	Mielec Subcarpathia, Poland	22.8
84	Żyrardów Mazovia, Poland	22.7
85	Obrenovac Central Serbia, Serbia	22.4
86	Przemyśl Subcarpathia, Poland	22.3
86	Puli Taiwan, Taiwan	22.3
86	Hsinchu Taiwan, Taiwan	22.3
89	Taichung Taiwan, Taiwan	22.2
90	Tainan Taiwan, Taiwan	22.1
91	Starachowice Świętokrzyskie, Poland	21.9
91	Shulin Taipei, Taiwan	21.9
93	Jarosław Subcarpathia, Poland	21.8
94	Legionowo Mazovia, Poland	21.4
94	Nantou Taiwan, Taiwan	21.4
96	Manama Manama, Bahrain	21.2
97	Kaohsiung Takao, Taiwan	21.1
97	Opole Opole Voivodeship, Poland	21.1
99	Zhudong Taiwan, Taiwan	20.7
99	Bydgoszcz Kujawsko-Pomorskie, Poland	20.7
101	Addis Ababa Addis Ababa, Ethiopia	20.6
101	Toufen Taiwan, Taiwan	20.6
103	Rzeszów Subcarpathia, Poland	20.5
103	Xinying Taiwan, Taiwan	20.5
105	Zhubei Taiwan, Taiwan	20.4
106	Chaozhou Taiwan, Taiwan	20.2
107	Kędzierzyn-Koźle Opole Voivodeship, Poland	20.1
108	Strzelce Opolskie Opole Voivodeship, Poland	20.0
108	Kościerzyna Pomerania, Poland	20.0
110	Antananarivo Analamanga, Madagascar	19.9
111	Buzi Taiwan, Taiwan	19.7
111	Wrocław Lower Silesia, Poland	19.7
113	Almaty low-cost sensors Almaty, Kazakhstan	19.5
113	Łódź Łódź Voivodeship, Poland	19.5
115	Elbląg Warmia-Masuria, Poland	19.4
116	Kielce Świętokrzyskie, Poland	19.3
116	Changhua Taiwan, Taiwan	19.3
116	Płock Mazovia, Poland	19.3
119	Radom Mazovia, Poland	19.1
119	Augustów Podlasie, Poland	19.1
121	San Luis de la Paz Guanajuato, Mexico	19.0
122	Neili Taiwan, Taiwan	18.9
122	Szczecin West Pomerania, Poland	18.9
124	Miaoli Taiwan, Taiwan	18.8
124	Xizhou Taiwan, Taiwan	18.8
124	Silao de la Victoria Guanajuato, Mexico	18.8
127	Konstancin-Jeziorna Mazovia, Poland	18.7
128	Tarnów Lesser Poland, Poland	18.5
129	Bytów Pomerania, Poland	18.4
130	Zielona Góra Lubusz, Poland	18.3
131	Birmingham Alabama, United States	18.2
132	Toruń Kujawsko-Pomorskie, Poland	18.1
132	Gdynia Pomerania, Poland	18.1
134	Daxi Taiwan, Taiwan	17.8
135	Belmopan Cayo District, Belize	17.6
135	Taoyuan Taiwan, Taiwan	17.6
137	Yachimata Chiba, Japan	17.5
137	New Taipei City Taipei, Taiwan	17.5
139	Baku Baki, Azerbaijan	17.2
139	Olsztyn Warmia-Masuria, Poland	17.2
139	Taipei Taiwan, Taiwan	17.2
142	Białystok Podlasie, Poland	17.1
143	Pułtusk Mazovia, Poland	17.0
143	Quezon City low-cost sensors National Capital Region, Philippines	17.0
145	Jelenia Góra Lower Silesia, Poland	16.9
146	Gorzów Wielkopolski Lubusz, Poland	16.8
147	Wawer Mazovia, Poland	16.6
148	Warsaw Mazovia, Poland	16.1
148	Świecie Kujawsko-Pomorskie, Poland	16.1
148	Salamanca Guanajuato, Mexico	16.1
148	Ponca City Oklahoma, United States	16.1
152	Sopot Pomerania, Poland	16.0
153	Xizhi Taipei, Taiwan	15.9
154	Jenks Oklahoma, United States	15.8
155	Saijō Ehime, Japan	15.7
156	Ang Mo Kio New Town Singapore	15.6
157	Kansas City Kansas, United States	15.3
158	Salor Tashkent Region, Uzbekistan	15.1
158	Abuja low-cost sensors FCT, Nigeria	15.1
160	Ulu Bedok Singapore	15.0
161	Botevgrad low-cost sensors Sofia, Bulgaria	14.9
162	Dushanbe Dushanbe, Tajikistan	14.8
162	Magong Taiwan, Taiwan	14.8
162	Hualien City Taiwan, Taiwan	14.8
165	Suwałki Podlasie, Poland	14.7
165	Irapuato Guanajuato, Mexico	14.7
167	Ełk Warmia-Masuria, Poland	14.6
167	Niihama Ehime, Japan	14.6
167	Gdańsk Pomerania, Poland	14.6
167	León de los Aldama Guanajuato, Mexico	14.6
171	Columbia low-cost sensors Missouri, United States	14.4
172	Shikokuchūō Ehime, Japan	14.3
173	Sanzhi Taipei, Taiwan	14.1
173	Tulsa Oklahoma, United States	14.1
175	Yotsukaidō Chiba, Japan	14.0
176	Bartlett Tennessee, United States	13.9
177	Forest Park Georgia, United States	13.7
178	Trussville Alabama, United States	13.6
179	Kennesaw Georgia, United States	13.5
180	Keelung Taiwan, Taiwan	13.4
181	Columbus Georgia, United States	13.3
182	Miyakonojō Miyazaki, Japan	13.2
182	Hueytown Alabama, United States	13.2
182	Fort Smith Arkansas, United States	13.2
182	El Paso Texas, United States	13.2
186	Yilan Taiwan, Taiwan	13.1
187	Jeddah Mecca Region, Saudi Arabia	13.0
188	Kołobrzeg West Pomerania, Poland	12.9
189	Charlottesville Virginia, United States	12.8
190	Fukuyama Hiroshima, Japan	12.6
191	Prince George British Columbia, Canada	12.5
192	Kanoya Kagoshima, Japan	12.4
192	Imabari Ehime, Japan	12.4
192	Tōgane Chiba, Japan	12.4
192	Koga Fukuoka, Japan	12.4
196	Kushikino Kagoshima, Japan	12.3
196	Queenstown Estate low-cost sensors Singapore	12.3
196	Tijuana Baja California, Mexico	12.3
196	Guanajuato Guanajuato, Mexico	12.3
200	Kasaoka Okayama, Japan	12.2

Top 200 of 1,351 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