SmogRank / History / week of May 6, 2024

Most polluted cities, week of May 6, 2024

2,052 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	170.2
2	Grande Prairie Alberta, Canada	117.8
3	Lahore low-cost sensors Punjab, Pakistan	102.8
4	Tlaquepaque Jalisco, Mexico	92.4
5	Delhi Delhi, India	90.2
6	Dhaka low-cost sensors Dhaka Division, Bangladesh	70.6
7	Santa Anita - Los Ficus Lima region, Peru	66.8
8	Jakarta Jakarta, Indonesia	56.4
9	Chiang Mai low-cost sensors Chiang Mai, Thailand	55.4
10	Cataño Cataño, Puerto Rico	50.3
11	Kathmandu low-cost sensors Bagmati Province, Nepal	47.3
12	Beijing Beijing, China	46.5
13	Baghdad Baghdad, Iraq	46.4
14	Edmonton Alberta, Canada	44.9
15	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	43.7
16	Cairo Cairo, Egypt	43.2
17	Dushanbe Dushanbe, Tajikistan	43.1
18	Guatemala City Guatemala, Guatemala	39.6
19	Ōyanomachi-noboritate Kumamoto, Japan	39.5
20	Mission Texas, United States	39.4
21	Rabinal Baja Verapaz, Guatemala	38.4
22	Celaya Guanajuato, Mexico	37.2
23	Belmopan Cayo District, Belize	37.0
24	Hanoi Hanoi, Vietnam	35.7
25	San Juan del Río Querétaro, Mexico	34.9
26	Santiago de Querétaro Querétaro, Mexico	34.1
27	Edinburg Texas, United States	33.9
28	Lima Lima Province, Peru	32.9
29	San Luis de la Paz Guanajuato, Mexico	31.7
29	Brownsville Texas, United States	31.7
31	Corpus Christi Texas, United States	31.6
32	Islamabad low-cost sensors Islamabad, Pakistan	31.0
33	St. Albert Alberta, Canada	30.7
34	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	30.5
35	Bangkok low-cost sensors Bangkok, Thailand	30.4
36	Shanghai Shanghai, China	29.4
37	Sherwood Park Alberta, Canada	28.6
38	Red Deer Alberta, Canada	27.4
39	Guangzhou Guangdong, China	27.2
40	Šabac Central Serbia, Serbia	27.1
41	Kigali Kigali, Rwanda	26.5
42	Wan Chai Wan Chai, Hong Kong	26.1
43	Irapuato Guanajuato, Mexico	25.7
44	Douliu Taiwan, Taiwan	25.4
45	Acerra Campania, Italy	25.1
45	León de los Aldama Guanajuato, Mexico	25.1
47	Zhushan Taiwan, Taiwan	24.8
48	Yangon Yangon, Myanmar	24.7
49	Jacobo Hunter Arequipa, Peru	24.5
50	Hyderabad Telangana, India	24.4
51	Yuanlin Taiwan, Taiwan	24.1
52	Laredo Texas, United States	24.0
53	Abuja low-cost sensors FCT, Nigeria	23.7
54	Live Oak Texas, United States	23.5
55	San Miguel de Allende Guanajuato, Mexico	23.3
56	Chiayi City Taiwan, Taiwan	23.1
56	Guanajuato Guanajuato, Mexico	23.1
58	Erlun Taiwan, Taiwan	23.0
58	San Francisco De Borja Lima region, Peru	23.0
60	Sarajevo Federation of B&H, Bosnia and Herzegovina	22.9
61	Beigang Taiwan, Taiwan	22.8
62	Tha Bo Nong Khai, Thailand	22.5
63	Erlin Taiwan, Taiwan	22.4
64	Richards Bay low-cost sensors KwaZulu-Natal, South Africa	22.2
65	Villa Poeta José Gálvez Barrenechea Lima region, Peru	21.8
65	Eagle Pass Texas, United States	21.8
67	Şabāḩ as Sālim Mubārak al Kabīr, Kuwait	21.7
68	Kolkata West Bengal, India	21.3
69	Karachi low-cost sensors Sindh, Pakistan	21.1
70	Puli Taiwan, Taiwan	21.0
70	Menen Flanders, Belgium	21.0
72	Yongkang Taiwan, Taiwan	20.9
73	Ban Khlong Prawet low-cost sensors Bangkok, Thailand	20.8
73	Shulin Taipei, Taiwan	20.8
75	Roeselare Flanders, Belgium	20.7
76	Austin Texas, United States	20.1
77	Conroe Texas, United States	19.9
78	Taibao Taiwan, Taiwan	19.8
79	Nantou Taiwan, Taiwan	19.7
79	Užice Central Serbia, Serbia	19.7
79	Abasolo Guanajuato, Mexico	19.7
82	Houston Texas, United States	19.6
82	Mission Bend Texas, United States	19.6
84	Tuen Mun Tuen Mun, Hong Kong	19.5
85	Fengshan Takao, Taiwan	19.4
85	Kourou Guyane, French Guiana	19.4
87	Taichung Taiwan, Taiwan	19.3
87	Evergem Flanders, Belgium	19.3
89	Antananarivo Analamanga, Madagascar	19.2
89	Tainan Taiwan, Taiwan	19.2
89	Koksijde Flanders, Belgium	19.2
92	Jincheng Fukien, Taiwan	18.9
92	Mong Kok Yau Tsim Mong District, Hong Kong	18.9
92	Lochristi Flanders, Belgium	18.9
92	Missouri City Texas, United States	18.9
96	Addis Ababa Addis Ababa, Ethiopia	18.8
97	Kortrijk Flanders, Belgium	18.7
97	San Antonio Texas, United States	18.7
99	Kaohsiung Takao, Taiwan	18.5
99	Zhubei Taiwan, Taiwan	18.5
101	Xinying Taiwan, Taiwan	18.2
101	Callao Callao, Peru	18.2
101	Belton Texas, United States	18.2
101	Port Arthur Texas, United States	18.2
105	Buzi Taiwan, Taiwan	18.1
105	Rangiora Canterbury, New Zealand	18.1
107	Zhudong Taiwan, Taiwan	17.8
108	Maputo Maputo City, Mozambique	17.7
108	Mumbai Maharashtra, India	17.7
110	Xizhou Taiwan, Taiwan	17.6
111	Miaoli Taiwan, Taiwan	17.5
111	Hsinchu Taiwan, Taiwan	17.5
111	Changhua Taiwan, Taiwan	17.5
111	San Marcos Texas, United States	17.5
115	Jeddah Mecca Region, Saudi Arabia	17.3
115	Salamanca Guanajuato, Mexico	17.3
117	Baku Baki, Azerbaijan	17.2
117	Izegem Flanders, Belgium	17.2
117	Baytown Texas, United States	17.2
117	Calgary Alberta, Canada	17.2
121	Gent Flanders, Belgium	17.1
121	Düsseldorf North Rhine-Westphalia, Germany	17.1
123	Taipei Taiwan, Taiwan	17.0
123	New Taipei City Taipei, Taiwan	17.0
125	Zwijndrecht Flanders, Belgium	16.9
126	Chaozhou Taiwan, Taiwan	16.8
126	Maldegem Flanders, Belgium	16.8
128	Taoyuan Taiwan, Taiwan	16.7
129	Christchurch Canterbury, New Zealand	16.6
129	College Station Texas, United States	16.6
131	Tilburg North Brabant, The Netherlands	16.4
132	Tsuen Wan Tsuen Wan, Hong Kong	16.3
133	Daxi Taiwan, Taiwan	16.1
133	Tai Po Tai Po, Hong Kong	16.1
135	Sham Shui Po Sham Shui Po District, Hong Kong	16.0
135	São Paulo São Paulo, Brazil	16.0
137	Xizhi Taipei, Taiwan	15.9
137	Dartford England, United Kingdom	15.9
137	Eindhoven North Brabant, The Netherlands	15.9
140	Toufen Taiwan, Taiwan	15.8
140	Kwai Chung Kwai Tsing District, Hong Kong	15.8
140	Mol Flanders, Belgium	15.8
140	Köln North Rhine-Westphalia, Germany	15.8
140	Bergheim North Rhine-Westphalia, Germany	15.8
145	Neili Taiwan, Taiwan	15.7
145	Tin Shui Wai Yuen Long, Hong Kong	15.7
145	Victoria Central and Western, Hong Kong	15.7
145	Grimbergen Flanders, Belgium	15.7
145	Krefeld North Rhine-Westphalia, Germany	15.7
145	Taylor Texas, United States	15.7
151	London England, United Kingdom	15.6
151	Dortmund North Rhine-Westphalia, Germany	15.6
151	Corsicana Texas, United States	15.6
154	Sau Mau Ping Kwun Tong District, Hong Kong	15.5
154	Antwerp Flanders, Belgium	15.5
156	Brussels Brussels Capital, Belgium	15.2
156	Saginaw Texas, United States	15.2
158	Ashgabat Ashgabat, Turkmenistan	15.1
158	Melbourne low-cost sensors Victoria, Australia	15.1
158	Grays England, United Kingdom	15.1
158	Bexley England, United Kingdom	15.1
162	San Tung Chung Hang Islands, Hong Kong	15.0
162	Datteln North Rhine-Westphalia, Germany	15.0
162	Bonn North Rhine-Westphalia, Germany	15.0
165	Mons Wallonia, Belgium	14.9
165	Beveren Flanders, Belgium	14.9
165	Hagen North Rhine-Westphalia, Germany	14.9
168	Hasselt Flanders, Belgium	14.8
168	Fontana California, United States	14.8
168	Canvey Island England, United Kingdom	14.8
171	Andenne Wallonia, Belgium	14.7
172	Airdrie Alberta, Canada	14.6
173	Stabroek Flanders, Belgium	14.5
173	Jüchen North Rhine-Westphalia, Germany	14.5
175	Nago Okinawa, Japan	14.4
175	Mechelen Flanders, Belgium	14.4
175	Jülich North Rhine-Westphalia, Germany	14.4
175	Tijuana Baja California, Mexico	14.4
179	Colombo Western Province, Sri Lanka	14.3
179	Kapellen Flanders, Belgium	14.3
179	Aarschot Flanders, Belgium	14.3
179	Kladno Central Bohemia, Czechia	14.3
183	Aberdeen Southern District, Hong Kong	14.2
183	Canterbury England, United Kingdom	14.2
183	Houthalen Flanders, Belgium	14.2
183	Duisburg North Rhine-Westphalia, Germany	14.2
183	Sulphur Louisiana, United States	14.2
188	Salor Tashkent Region, Uzbekistan	14.1
188	Wuppertal North Rhine-Westphalia, Germany	14.1
188	Zielona Góra Lubusz, Poland	14.1
191	Hualien City Taiwan, Taiwan	14.0
191	Nijmegen Gelderland, The Netherlands	14.0
191	Ratingen North Rhine-Westphalia, Germany	14.0
191	Borken North Rhine-Westphalia, Germany	14.0
195	Miyakonojō Miyazaki, Japan	13.9
195	Kanoya Kagoshima, Japan	13.9
195	Accra low-cost sensors Greater Accra, Ghana	13.9
195	Venlo Limburg, The Netherlands	13.9
195	Zaventem Flanders, Belgium	13.9
195	Willebroek Flanders, Belgium	13.9

Top 200 of 2,052 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