SmogRank / History / September 6, 2025

Most polluted cities on September 6, 2025

2,167 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← September 5, 2025September 7, 2025 →
#City µg/m³× WHO
1Calexico California, United States
251.816.8×
2Cuddalore Tamil Nadu, India
113.07.5×
3Chāpra Bihar, India
90.56.0×
4Wenatchee Washington, United States
83.35.6×
5Singrauli Madhya Pradesh, India
75.75.0×
6Gummidipundi Tamil Nadu, India
74.95.0×
7Beitbridge low-cost sensors Matabeleland South Province, Zimbabwe
69.74.6×
8Faisalabad low-cost sensors Punjab, Pakistan
66.54.4×
9Santa Lucía Canary Islands, Spain
64.04.3×
10Gujranwala low-cost sensors Punjab, Pakistan
61.64.1×
11Dushanbe Dushanbe, Tajikistan
56.93.8×
12Istanbul low-cost sensors Istanbul, Turkey
52.73.5×
13Tirupati Andhra Pradesh, India
50.83.4×
14Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
50.73.4×
15Multan low-cost sensors Punjab, Pakistan
49.33.3×
15Squamish British Columbia, Canada
49.33.3×
17Serilingampalle Telangana, India
47.93.2×
18Grants Pass Oregon, United States
47.33.2×
19Bānswāra Rajasthan, India
46.63.1×
20Kadapa Andhra Pradesh, India
44.22.9×
21Rasapūdipalem Andhra Pradesh, India
43.32.9×
22Bhiwadi Rajasthan, India
42.62.8×
23Surat Gujarat, India
41.52.8×
24Ellensburg Washington, United States
41.32.8×
25Vereeniging low-cost sensors Gauteng, South Africa
40.52.7×
26Dhaulpur Rajasthan, India
40.42.7×
27Spokane Washington, United States
40.32.7×
28Sialkot low-cost sensors Punjab, Pakistan
40.22.7×
28Tri-Cities Washington, United States
40.22.7×
30Sunnyside Washington, United States
39.82.7×
31Cranbrook British Columbia, Canada
39.32.6×
32Spokane Valley Washington, United States
39.02.6×
33Ashaiman low-cost sensors Greater Accra, Ghana
38.72.6×
34Vernon British Columbia, Canada
38.42.6×
35Yakima Washington, United States
37.72.5×
36Buxar Bihar, India
37.52.5×
37Ashland Oregon, United States
37.02.5×
38Coeur d'Alene Idaho, United States
36.82.5×
39Cholula Puebla, Mexico
36.32.4×
40Quthbullapur Telangana, India
35.42.4×
41Kelowna British Columbia, Canada
35.02.3×
42Lewiston Idaho, United States
34.82.3×
43Lagos low-cost sensors Lagos, Nigeria
34.72.3×
44Joda Odisha, India
34.62.3×
45Rourkela Odisha, India
34.42.3×
46Vijayawada Andhra Pradesh, India
33.72.2×
46Narela Delhi, India
33.72.2×
46Anantapur Andhra Pradesh, India
33.72.2×
49Missoula Montana, United States
33.42.2×
49Kamloops British Columbia, Canada
33.42.2×
51Ajmer Rajasthan, India
33.32.2×
52Lahore low-cost sensors Punjab, Pakistan
32.82.2×
52Saharsa Bihar, India
32.82.2×
52Kanpur Uttar Pradesh, India
32.82.2×
55Fort McMurray Alberta, Canada
32.72.2×
56Angul Odisha, India
32.62.2×
57Medford Oregon, United States
32.02.1×
58Butte Montana, United States
31.92.1×
59Prince George British Columbia, Canada
31.42.1×
60Calgary Alberta, Canada
31.22.1×
61Bahawalpur low-cost sensors Punjab, Pakistan
31.02.1×
61Iloilo low-cost sensors Western Visayas, Philippines
31.02.1×
63Baripāda Odisha, India
30.92.1×
64Greater Noida Uttar Pradesh, India
30.82.1×
65San Salvador Tizatlalli México, Mexico
30.72.0×
66Karachi low-cost sensors Sindh, Pakistan
30.62.0×
67Chennai Tamil Nadu, India
30.02.0×
68Siwān Bihar, India
29.82.0×
68Tema low-cost sensors Greater Accra, Ghana
29.82.0×
70Nalbāri Assam, India
29.62.0×
71Jalandhar Punjab, India
29.52.0×
72Addis Ababa Addis Ababa, Ethiopia
29.42.0×
72Quetta low-cost sensors Balochistan, Pakistan
29.42.0×
72Hyderabad Telangana, India
29.42.0×
75Hermiston Oregon, United States
29.32.0×
76Moscow Idaho, United States
29.11.9×
77Grande Prairie Alberta, Canada
28.91.9×
78García Nuevo León, Mexico
28.41.9×
79Ciudad Benito Juárez Nuevo León, Mexico
28.31.9×
80Ciudad General Escobedo Nuevo León, Mexico
28.21.9×
81West Vancouver British Columbia, Canada
28.11.9×
82Delhi Delhi, India
27.81.9×
83Rawalpindi low-cost sensors Punjab, Pakistan
27.61.8×
83Kolkata West Bengal, India
27.61.8×
85Kalyān Maharashtra, India
27.11.8×
86Islamabad low-cost sensors Islamabad, Pakistan
26.31.8×
86Walla Walla Washington, United States
26.31.8×
88Monterrey Nuevo León, Mexico
25.71.7×
89Durgapur West Bengal, India
25.61.7×
89Begusarai Bihar, India
25.61.7×
91Muzaffarnagar Uttar Pradesh, India
25.31.7×
91Hāpur Uttar Pradesh, India
25.31.7×
93Shrīrāmpur West Bengal, India
25.21.7×
93Shivamogga Karnataka, India
25.21.7×
93Aya Nagar Delhi, India
25.21.7×
96Rānīganj West Bengal, India
25.01.7×
96Cadereyta Jiménez Nuevo León, Mexico
25.01.7×
98Debrecen low-cost sensors Hajdú-Bihar, Hungary
24.91.7×
99Idaho Falls Idaho, United States
24.71.6×
99Vapi Gujarat, India
24.71.6×
99Noida Uttar Pradesh, India
24.71.6×
102Arvada low-cost sensors Colorado, United States
24.61.6×
103Silchar Assam, India
24.51.6×
104Neelankarai Tamil Nadu, India
24.41.6×
105Ankleshwar Gujarat, India
24.31.6×
105Pocatello Idaho, United States
24.31.6×
105Barbil Odisha, India
24.31.6×
108Kharghar Maharashtra, India
24.21.6×
108Wadgaon Kolhati Maharashtra, India
24.21.6×
110Toufen Taiwan, Taiwan
23.91.6×
111Dubai low-cost sensors Dubai, United Arab Emirates
23.81.6×
111Wake Forest low-cost sensors North Carolina, United States
23.81.6×
113Salamanca Guanajuato, Mexico
23.51.6×
113Thornton Colorado, United States
23.51.6×
115Gwalior Madhya Pradesh, India
23.31.6×
116Nagaon Assam, India
23.01.5×
116Morādābād Uttar Pradesh, India
23.01.5×
116San Francisco Tlalcilalcalpan México, Mexico
23.01.5×
119Byasanagar Odisha, India
22.91.5×
120Sarajevo Federation of B&H, Bosnia and Herzegovina
22.81.5×
120Northglenn low-cost sensors Colorado, United States
22.81.5×
120Red Deer Alberta, Canada
22.81.5×
123Tonk Rajasthan, India
22.61.5×
124Kalaburagi Karnataka, India
22.51.5×
124Dādri Uttar Pradesh, India
22.51.5×
124Longmont Colorado, United States
22.51.5×
127Edmonton Alberta, Canada
22.41.5×
128Ropar Punjab, India
22.31.5×
129Najafgarh Delhi, India
22.21.5×
130Ahmedabad Gujarat, India
22.11.5×
130Vientiane low-cost sensors Vientiane Prefecture, Laos
22.11.5×
130Bozeman Montana, United States
22.11.5×
130Baddi Himachal Pradesh, India
22.11.5×
134Boulder Colorado, United States
22.01.5×
135Boisar Maharashtra, India
21.71.4×
135Vijayapura Karnataka, India
21.71.4×
137Brighton low-cost sensors Colorado, United States
21.61.4×
138Khlong Luang low-cost sensors Pathum Thani, Thailand
21.51.4×
138Daxi Taiwan, Taiwan
21.51.4×
138Fort Collins Colorado, United States
21.51.4×
141Nagpur Maharashtra, India
21.41.4×
141Zhudong Taiwan, Taiwan
21.41.4×
143St. Albert Alberta, Canada
21.31.4×
144Helena Montana, United States
21.21.4×
145Ghāziābād Uttar Pradesh, India
21.11.4×
146Prayagraj Uttar Pradesh, India
20.91.4×
147Fort St. John British Columbia, Canada
20.81.4×
148Santa Catarina Nuevo León, Mexico
20.61.4×
149Accra low-cost sensors Greater Accra, Ghana
20.51.4×
150Haldia West Bengal, India
20.31.4×
150Windsor Colorado, United States
20.31.4×
152Tirumala Andhra Pradesh, India
20.11.3×
152Rājgīr Bihar, India
20.11.3×
152Cuttack Odisha, India
20.11.3×
155Edinburg Texas, United States
20.01.3×
155Sai Mai low-cost sensors Bangkok, Thailand
20.01.3×
157Jhunjhunūn Rajasthan, India
19.81.3×
157Lakewood low-cost sensors Colorado, United States
19.81.3×
157Lethbridge Alberta, Canada
19.81.3×
160Ken Caryl Colorado, United States
19.71.3×
161Thāne Maharashtra, India
19.61.3×
161Puebla Puebla, Mexico
19.61.3×
163Lucknow Uttar Pradesh, India
19.51.3×
163Miaoli Taiwan, Taiwan
19.51.3×
163Greeley Colorado, United States
19.51.3×
166Gaya Bihar, India
19.41.3×
166Bhiwandi Maharashtra, India
19.41.3×
166Hsinchu Taiwan, Taiwan
19.41.3×
169Malegaon Maharashtra, India
19.31.3×
169Latur Maharashtra, India
19.31.3×
169Wan Chai Wan Chai, Hong Kong
19.31.3×
172Parbhani Maharashtra, India
19.21.3×
172Jabalpur Madhya Pradesh, India
19.21.3×
172León de los Aldama Guanajuato, Mexico
19.21.3×
175Denver Colorado, United States
19.11.3×
176Patna Bihar, India
19.01.3×
176Rairangpur Odisha, India
19.01.3×
176Littleton Colorado, United States
19.01.3×
176Boise Idaho, United States
19.01.3×
180Mission Texas, United States
18.91.3×
181Panvel Maharashtra, India
18.81.3×
181Nanaimo British Columbia, Canada
18.81.3×
183Sri Ganganagar Rajasthan, India
18.61.2×
183Chūru Rajasthan, India
18.61.2×
185Yuanlin Taiwan, Taiwan
18.51.2×
185Colorado Springs Colorado, United States
18.51.2×
187Hubballi Karnataka, India
18.41.2×
187Changchun low-cost sensors Jilin, China
18.41.2×
189Nanded Maharashtra, India
18.21.2×
190Gudalur Tamil Nadu, India
18.11.2×
191North Vancouver British Columbia, Canada
18.01.2×
192Bhubaneswar Odisha, India
17.91.2×
192Cañon City Colorado, United States
17.91.2×
194Zhubei Taiwan, Taiwan
17.71.2×
194Inglewood-Finn Hill low-cost sensors Washington, United States
17.71.2×
196Jaén Andalusia, Spain
17.51.2×
196Tulancingo Hidalgo, Mexico
17.51.2×
196Cuernavaca Morelos, Mexico
17.51.2×
196Pendleton Oregon, United States
17.51.2×
200Nantou Taiwan, Taiwan
17.41.2×

Top 200 of 2,167 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