SmogRank / History / September 4, 2025

Most polluted cities on September 4, 2025

2,389 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← September 3, 2025September 5, 2025 →
#City µg/m³× WHO
1Chāpra Bihar, India
114.07.6×
2Dushanbe Dushanbe, Tajikistan
80.75.4×
3Faisalabad low-cost sensors Punjab, Pakistan
73.94.9×
4Kigali Kigali, Rwanda
73.34.9×
5Serilingampalle Telangana, India
63.34.2×
6Kanchipuram Tamil Nadu, India
61.64.1×
7Nalbāri Assam, India
59.34.0×
8Yakima Washington, United States
58.03.9×
9Rasapūdipalem Andhra Pradesh, India
57.83.9×
10Istanbul low-cost sensors Istanbul, Turkey
56.03.7×
11Sri Ganganagar Rajasthan, India
55.33.7×
12Squamish British Columbia, Canada
53.13.5×
13Beitbridge low-cost sensors Matabeleland South Province, Zimbabwe
49.83.3×
14Calgary Alberta, Canada
47.83.2×
15Gummidipundi Tamil Nadu, India
46.43.1×
16Chittoor Andhra Pradesh, India
44.33.0×
17Kadapa Andhra Pradesh, India
42.92.9×
18Bahawalpur low-cost sensors Punjab, Pakistan
42.82.9×
19Airdrie Alberta, Canada
41.92.8×
20Morādābād Uttar Pradesh, India
41.32.8×
21Lethbridge Alberta, Canada
40.92.7×
22Harare low-cost sensors Harare, Zimbabwe
39.72.6×
22Multan low-cost sensors Punjab, Pakistan
39.72.6×
24Bhiwadi Rajasthan, India
38.32.6×
25Vereeniging low-cost sensors Gauteng, South Africa
37.82.5×
25Buxar Bihar, India
37.82.5×
27Edmonton Alberta, Canada
36.82.5×
28Ariyalūr Tamil Nadu, India
36.52.4×
28Cholula Puebla, Mexico
36.52.4×
30Siedlce Mazovia, Poland
36.42.4×
30Vijayawada Andhra Pradesh, India
36.42.4×
32Wenatchee Washington, United States
36.22.4×
32Grande Prairie Alberta, Canada
36.22.4×
34Quthbullapur Telangana, India
36.12.4×
35Narela Delhi, India
35.72.4×
35Red Deer Alberta, Canada
35.72.4×
37Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
35.52.4×
38Columbia low-cost sensors Missouri, United States
34.62.3×
39St. Albert Alberta, Canada
33.62.2×
40Prince George British Columbia, Canada
33.52.2×
41Kamloops British Columbia, Canada
33.32.2×
42Malegaon Maharashtra, India
33.02.2×
43Sherwood Park Alberta, Canada
32.72.2×
44Lima Lima Province, Peru
31.62.1×
44Spokane Washington, United States
31.62.1×
46Anantapur Andhra Pradesh, India
31.42.1×
47Muzaffarnagar Uttar Pradesh, India
31.32.1×
47Changchun low-cost sensors Jilin, China
31.32.1×
49Thornton Colorado, United States
30.92.1×
50Vapi Gujarat, India
30.82.1×
51Gujranwala low-cost sensors Punjab, Pakistan
30.62.0×
52Singrauli Madhya Pradesh, India
30.52.0×
53Boisar Maharashtra, India
30.42.0×
54Kalyān Maharashtra, India
30.32.0×
55Lagos low-cost sensors Lagos, Nigeria
30.02.0×
56Ashaiman low-cost sensors Greater Accra, Ghana
29.82.0×
56Coeur d'Alene Idaho, United States
29.82.0×
56Noida Uttar Pradesh, India
29.82.0×
59Great Falls Montana, United States
29.72.0×
60Spokane Valley Washington, United States
29.52.0×
60Cheyenne Wyoming, United States
29.52.0×
62Jakarta Jakarta, Indonesia
29.21.9×
63Quetta low-cost sensors Balochistan, Pakistan
29.11.9×
63Ajmer Rajasthan, India
29.11.9×
65Karachi low-cost sensors Sindh, Pakistan
28.91.9×
66Windsor Colorado, United States
28.61.9×
67Helena Montana, United States
27.91.9×
68Shenyang Liaoning, China
27.71.8×
69Missoula Montana, United States
27.61.8×
70Medicine Hat Alberta, Canada
27.51.8×
70Vernon British Columbia, Canada
27.51.8×
72Topeka Kansas, United States
27.31.8×
73San Francisco Tlalcilalcalpan México, Mexico
27.21.8×
73Callao Callao, Peru
27.21.8×
75Arāria Bihar, India
27.11.8×
76Kansas City Kansas, United States
27.01.8×
77Mission British Columbia, Canada
26.91.8×
78Fort Dodge Iowa, United States
26.81.8×
79Northglenn low-cost sensors Colorado, United States
26.71.8×
80Ropar Punjab, India
26.61.8×
81Zemun Central Serbia, Serbia
26.51.8×
81Moses Lake Washington, United States
26.51.8×
83Tema low-cost sensors Greater Accra, Ghana
26.41.8×
83Sukuta low-cost sensors Western, Gambia
26.41.8×
83Arvada low-cost sensors Colorado, United States
26.41.8×
86Brighton low-cost sensors Colorado, United States
26.31.8×
87Billings Montana, United States
26.21.7×
87Bozeman Montana, United States
26.21.7×
87Swift Current Saskatchewan, Canada
26.21.7×
90Naucalpan de Juárez México, Mexico
26.11.7×
91Longmont Colorado, United States
26.01.7×
91Greater Noida Uttar Pradesh, India
26.01.7×
93Rawalpindi low-cost sensors Punjab, Pakistan
25.81.7×
93Badlapur Maharashtra, India
25.81.7×
95Lahore low-cost sensors Punjab, Pakistan
25.61.7×
95Jalandhar Punjab, India
25.61.7×
95Hyderabad Telangana, India
25.61.7×
98Begusarai Bihar, India
25.51.7×
99Ahmedabad Gujarat, India
25.41.7×
99Cranbrook British Columbia, Canada
25.41.7×
101Olathe Kansas, United States
25.31.7×
102Xonacatlán México, Mexico
25.21.7×
102Chilliwack British Columbia, Canada
25.21.7×
104Ankleshwar Gujarat, India
25.11.7×
105Boulder Colorado, United States
25.01.7×
106Greeley Colorado, United States
24.61.6×
107Nagaon Assam, India
24.41.6×
108Butte Montana, United States
24.31.6×
109Silchar Assam, India
24.21.6×
109San Salvador Tizatlalli México, Mexico
24.21.6×
111Chennai Tamil Nadu, India
24.11.6×
112Ellensburg Washington, United States
23.71.6×
113Dhule Maharashtra, India
23.61.6×
114Delhi Delhi, India
23.51.6×
115Chānda Maharashtra, India
23.41.6×
116Kelowna British Columbia, Canada
23.21.5×
117Des Moines Iowa, United States
23.01.5×
117Gillette Wyoming, United States
23.01.5×
119Jarosław Subcarpathia, Poland
22.91.5×
119Casper Wyoming, United States
22.91.5×
121Nagpur Maharashtra, India
22.81.5×
122Rānīganj West Bengal, India
22.71.5×
123Jincheng Fukien, Taiwan
22.61.5×
123Wichita Kansas, United States
22.61.5×
125Rourkela Odisha, India
22.51.5×
126Dubai low-cost sensors Dubai, United Arab Emirates
22.41.5×
126Belgrade Central Serbia, Serbia
22.41.5×
128Tonk Rajasthan, India
22.31.5×
128Bhiwandi Maharashtra, India
22.31.5×
128Neelankarai Tamil Nadu, India
22.31.5×
131Vijayapura Karnataka, India
22.21.5×
131Fort Collins Colorado, United States
22.21.5×
133Sheridan Wyoming, United States
22.11.5×
134Shakaskraal low-cost sensors KwaZulu-Natal, South Africa
22.01.5×
134Saint Joseph Missouri, United States
22.01.5×
136Tiruchirappalli Tamil Nadu, India
21.91.5×
136Corcoran California, United States
21.91.5×
138West Vancouver British Columbia, Canada
21.81.5×
139Erlun Taiwan, Taiwan
21.51.4×
139Ankeny Iowa, United States
21.51.4×
139Grand Island Nebraska, United States
21.51.4×
139Coquitlam British Columbia, Canada
21.51.4×
143Navalpattu Tamil Nadu, India
21.31.4×
144Parbhani Maharashtra, India
21.21.4×
144Jhunjhunūn Rajasthan, India
21.21.4×
146Tomaszów Lubelski Lublin, Poland
21.11.4×
147Latur Maharashtra, India
21.01.4×
147San Francisco De Borja Lima region, Peru
21.01.4×
149Inglewood-Finn Hill low-cost sensors Washington, United States
20.91.4×
150Vellore Tamil Nadu, India
20.81.4×
150Denver Colorado, United States
20.81.4×
152Lakewood low-cost sensors Colorado, United States
20.61.4×
153Brawley California, United States
20.31.4×
154Rapid City South Dakota, United States
20.11.3×
154Kharghar Maharashtra, India
20.11.3×
156Šabac Central Serbia, Serbia
20.01.3×
156Omaha Nebraska, United States
20.01.3×
156Kirkland low-cost sensors Washington, United States
20.01.3×
159Hājīpur Bihar, India
19.91.3×
160Accra low-cost sensors Greater Accra, Ghana
19.81.3×
160Kansas City Missouri, United States
19.81.3×
160Tri-Cities Washington, United States
19.81.3×
163Dādri Uttar Pradesh, India
19.71.3×
163Douliu Taiwan, Taiwan
19.71.3×
163Mexico City Mexico City, Mexico
19.71.3×
166Thāne Maharashtra, India
19.61.3×
166Kalaburagi Karnataka, India
19.61.3×
166Bengaluru Karnataka, India
19.61.3×
169Sremčica Central Serbia, Serbia
19.51.3×
169Aurangabad Maharashtra, India
19.51.3×
171Sialkot low-cost sensors Punjab, Pakistan
19.41.3×
171Iloilo low-cost sensors Western Visayas, Philippines
19.41.3×
171Sioux Falls South Dakota, United States
19.41.3×
174Przemyśl Subcarpathia, Poland
19.31.3×
174Richards Bay low-cost sensors KwaZulu-Natal, South Africa
19.31.3×
174Nashik Maharashtra, India
19.31.3×
177Smederevo Central Serbia, Serbia
19.11.3×
177Cedar Rapids Iowa, United States
19.11.3×
177Terrace British Columbia, Canada
19.11.3×
180Rājsamand Rajasthan, India
19.01.3×
180Amravati Maharashtra, India
19.01.3×
182Sholapur Maharashtra, India
18.91.3×
182Bellevue Nebraska, United States
18.91.3×
182Ken Caryl Colorado, United States
18.91.3×
185Rairangpur Odisha, India
18.81.3×
185Moscow Idaho, United States
18.81.3×
187Lazarevac Central Serbia, Serbia
18.71.2×
187Derby Kansas, United States
18.71.2×
187La Vista Nebraska, United States
18.71.2×
187Lincoln Nebraska, United States
18.71.2×
191Rzeszów Subcarpathia, Poland
18.61.2×
191Gudalur Tamil Nadu, India
18.61.2×
191Erlin Taiwan, Taiwan
18.61.2×
194Iowa City Iowa, United States
18.51.2×
194Hermiston Oregon, United States
18.51.2×
196Snina Prešov Region, Slovakia
18.41.2×
196Gwalior Madhya Pradesh, India
18.41.2×
196Guwahati Assam, India
18.41.2×
196Kolkata West Bengal, India
18.41.2×
196Yuanlin Taiwan, Taiwan
18.41.2×

Top 200 of 2,389 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