SmogRank / History / July 31, 2026

Most polluted cities on July 31, 2026

2,280 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← July 30, 2026August 1, 2026 →
#City µg/m³× WHO
1Kamloops British Columbia, Canada
146.09.7×
2Kampala low-cost sensors Central Region, Uganda
73.24.9×
3Vernon British Columbia, Canada
68.94.6×
4Gummidipundi Tamil Nadu, India
67.74.5×
5Nampa Idaho, United States
66.34.4×
6Lilongwe low-cost sensors Central Region, Malawi
65.64.4×
7Santa Rosa California, United States
64.24.3×
8Quetta low-cost sensors Balochistan, Pakistan
60.54.0×
9Ashaiman low-cost sensors Greater Accra, Ghana
60.14.0×
10Undera Gujarat, India
53.13.5×
11Faisalabad low-cost sensors Punjab, Pakistan
51.53.4×
12Karonga low-cost sensors Northern Region, Malawi
49.53.3×
13Dushanbe Dushanbe, Tajikistan
48.93.3×
14Dhāruhera Haryana, India
46.63.1×
15Siwān Bihar, India
46.23.1×
16Calgary Alberta, Canada
45.43.0×
17Lagos low-cost sensors Lagos, Nigeria
42.82.9×
18Antananarivo Analamanga, Madagascar
42.42.8×
19Dubai low-cost sensors Dubai, United Arab Emirates
42.32.8×
20Bhiwadi Rajasthan, India
41.82.8×
21Lethbridge Alberta, Canada
41.52.8×
22Airdrie Alberta, Canada
40.82.7×
23Quezon City low-cost sensors National Capital Region, Philippines
40.72.7×
24Pendleton Oregon, United States
40.02.7×
25Chāpra Bihar, India
39.42.6×
26Gurugram Haryana, India
39.12.6×
26Tema low-cost sensors Greater Accra, Ghana
39.12.6×
28Palembang low-cost sensors South Sumatra, Indonesia
38.82.6×
29Lahore low-cost sensors Punjab, Pakistan
38.32.6×
30Islamabad low-cost sensors Islamabad, Pakistan
37.82.5×
30Jharia Jharkhand, India
37.82.5×
32Gujranwala low-cost sensors Punjab, Pakistan
37.72.5×
33Yamuna Nagar Haryana, India
36.92.5×
34Noida Uttar Pradesh, India
36.82.5×
35Ajmer Rajasthan, India
36.32.4×
36Mzuzu low-cost sensors Northern Region, Malawi
36.22.4×
37Chittoor Andhra Pradesh, India
35.82.4×
38Kadapa Andhra Pradesh, India
35.02.3×
39Iloilo low-cost sensors Western Visayas, Philippines
34.92.3×
40Blantyre low-cost sensors Southern Region, Malawi
34.82.3×
40Karnāl Haryana, India
34.82.3×
42Hyderabad low-cost sensors Sindh, Pakistan
34.62.3×
43Anantapur Andhra Pradesh, India
34.42.3×
44Murree low-cost sensors Punjab, Pakistan
33.92.3×
45Cranbrook British Columbia, Canada
33.72.2×
46Zomba low-cost sensors Southern Region, Malawi
33.62.2×
46Dhaka low-cost sensors Dhaka Division, Bangladesh
33.62.2×
46Lewiston Idaho, United States
33.62.2×
49Begusarai Bihar, India
33.52.2×
50Chittorgarh Rajasthan, India
32.32.2×
50Changchun low-cost sensors Jilin, China
32.32.2×
52Multan low-cost sensors Punjab, Pakistan
31.92.1×
52Vijayawada Andhra Pradesh, India
31.92.1×
52Tirupati Andhra Pradesh, India
31.92.1×
55Lima Lima Province, Peru
31.22.1×
56Bahadurgarh Haryana, India
31.12.1×
57Gandhinagar Gujarat, India
31.02.1×
58Dausa Rajasthan, India
30.42.0×
59San Luis Potosí San Luis Potosí, Mexico
30.32.0×
59Macon Georgia, United States
30.32.0×
61Rawalpindi low-cost sensors Punjab, Pakistan
30.12.0×
61Bhiwāni Haryana, India
30.12.0×
63Beitbridge low-cost sensors Matabeleland South Province, Zimbabwe
29.92.0×
63Boise Idaho, United States
29.92.0×
65Sialkot low-cost sensors Punjab, Pakistan
29.82.0×
66Karachi low-cost sensors Sindh, Pakistan
29.52.0×
67Tulare low-cost sensors California, United States
29.42.0×
68Winterthur low-cost sensors Zurich, Switzerland
29.32.0×
69Jhunjhunūn Rajasthan, India
28.81.9×
70Sonīpat Haryana, India
28.41.9×
71Arāria Bihar, India
28.21.9×
72Gwalior Madhya Pradesh, India
28.11.9×
73Jammu low-cost sensors Jammu and Kashmir, India
27.91.9×
74Tonk Rajasthan, India
27.21.8×
75Faridabad Haryana, India
27.11.8×
76Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
27.01.8×
77Füssen low-cost sensors Bavaria, Germany
26.81.8×
77Warner Robins Georgia, United States
26.81.8×
79Grande Prairie Alberta, Canada
26.51.8×
80Lucknow Uttar Pradesh, India
26.41.8×
81Agartala Tripura, India
26.21.7×
82Hacienda Santa Fe Jalisco, Mexico
25.91.7×
83Hyderabad Telangana, India
25.71.7×
83Sri Ganganagar Rajasthan, India
25.71.7×
85Kalyān Maharashtra, India
25.51.7×
86Perrysburg Ohio, United States
25.41.7×
87Chigasaki Kanagawa, Japan
25.31.7×
88Istanbul low-cost sensors Istanbul, Turkey
25.11.7×
88Santa Anita - Los Ficus Lima region, Peru
25.11.7×
90Thāne Maharashtra, India
24.81.7×
90Medicine Hat Alberta, Canada
24.81.7×
92Ahilyanagar Maharashtra, India
24.71.6×
93Ayase Kanagawa, Japan
24.61.6×
94Jhālāwār Rajasthan, India
24.51.6×
95Dhaulpur Rajasthan, India
24.11.6×
95Heilbronn Baden-Wurttemberg, Germany
24.11.6×
95Great Falls Montana, United States
24.11.6×
98Naucalpan de Juárez México, Mexico
24.01.6×
99Walla Walla Washington, United States
23.91.6×
100Kaithal Haryana, India
23.61.6×
101Thānesar Haryana, India
23.51.6×
101Aalen Baden-Wurttemberg, Germany
23.51.6×
101Pullman Washington, United States
23.51.6×
101Byasanagar Odisha, India
23.51.6×
105Kotli Loharan low-cost sensors Punjab, Pakistan
23.41.6×
105Silchar Assam, India
23.41.6×
105Kanpur Uttar Pradesh, India
23.41.6×
105Speyer Rheinland-Pfalz, Germany
23.41.6×
105Milan Lombardy, Italy
23.41.6×
110Harare low-cost sensors Harare, Zimbabwe
23.31.6×
110Říčany low-cost sensors Central Bohemia, Czechia
23.31.6×
110Missoula Montana, United States
23.31.6×
113Bārmer Rajasthan, India
23.11.5×
113Calexico California, United States
23.11.5×
115Celaya Guanajuato, Mexico
23.01.5×
116Jaisalmer Rajasthan, India
22.91.5×
117Villingen-Schwenningen Baden-Wurttemberg, Germany
22.71.5×
117Lampertheim Hesse, Germany
22.71.5×
117Acerra Campania, Italy
22.71.5×
120Marigliano Campania, Italy
22.61.5×
121Phuntsholing low-cost sensors Chukha, Bhutan
22.51.5×
121Callao Callao, Peru
22.51.5×
123Rasapūdipalem Andhra Pradesh, India
22.41.5×
123Ann Arbor low-cost sensors Michigan, United States
22.41.5×
125Dūngarpur Rajasthan, India
22.31.5×
125Stuttgart Baden-Wurttemberg, Germany
22.31.5×
125Karlsruhe Baden-Wurttemberg, Germany
22.31.5×
125Royal Oak low-cost sensors Michigan, United States
22.31.5×
129Hachiōji Tokyo, Japan
22.01.5×
129Pforzheim Baden-Wurttemberg, Germany
22.01.5×
129Ludwigshafen am Rhein Rheinland-Pfalz, Germany
22.01.5×
132Jaipur Rajasthan, India
21.91.5×
132Ahmedabad Gujarat, India
21.91.5×
132Wenatchee Washington, United States
21.91.5×
135Bahawalpur low-cost sensors Punjab, Pakistan
21.81.5×
135Chennai Tamil Nadu, India
21.81.5×
135Gotemba Shizuoka, Japan
21.81.5×
135Mannheim Baden-Wurttemberg, Germany
21.81.5×
135Ludwigsburg Baden-Wurttemberg, Germany
21.81.5×
135Columbus Georgia, United States
21.81.5×
135Torrance low-cost sensors California, United States
21.81.5×
135Baddi Himachal Pradesh, India
21.81.5×
143Kalisz Greater Poland, Poland
21.71.4×
144Ulm Baden-Wurttemberg, Germany
21.61.4×
144Kaiserslautern Rheinland-Pfalz, Germany
21.61.4×
146Minamirinkan Kanagawa, Japan
21.51.4×
146Isehara Kanagawa, Japan
21.51.4×
146Friedrichshafen Baden-Wurttemberg, Germany
21.51.4×
146Redmond Oregon, United States
21.51.4×
150Eggenstein-Leopoldshafen Baden-Wurttemberg, Germany
21.41.4×
151Kota Rajasthan, India
21.31.4×
151Coimbatore Tamil Nadu, India
21.31.4×
153Jīnd Haryana, India
21.11.4×
153Kolkata West Bengal, India
21.11.4×
153Joda Odisha, India
21.11.4×
156Schwäbisch Hall Baden-Wurttemberg, Germany
21.01.4×
156Biberach an der Riß Baden-Wurttemberg, Germany
21.01.4×
156Atlixco Puebla, Mexico
21.01.4×
156San Francisco De Borja Lima region, Peru
21.01.4×
160Kurihama Kanagawa, Japan
20.91.4×
160Worms Rheinland-Pfalz, Germany
20.91.4×
160Wiesloch Baden-Wurttemberg, Germany
20.91.4×
160Tübingen Baden-Wurttemberg, Germany
20.91.4×
160Landshut Bavaria, Germany
20.91.4×
165Gorzów Wielkopolski Lubusz, Poland
20.81.4×
166Shrīrāmpur West Bengal, India
20.71.4×
166Konstanz Baden-Wurttemberg, Germany
20.71.4×
168Trebišov Košice Region, Slovakia
20.61.4×
168Gaya Bihar, India
20.61.4×
168Würzburg Bavaria, Germany
20.61.4×
168Nice Provence-Alpes-Côte d'Azur, France
20.61.4×
172Nalbāri Assam, India
20.51.4×
172Filderstadt Baden-Wurttemberg, Germany
20.51.4×
172Silao de la Victoria Guanajuato, Mexico
20.51.4×
175Hāpur Uttar Pradesh, India
20.41.4×
175Bhilwara Rajasthan, India
20.41.4×
175Tateyama Chiba, Japan
20.41.4×
175Lauda-Königshofen Baden-Wurttemberg, Germany
20.41.4×
179Reutlingen Baden-Wurttemberg, Germany
20.31.4×
179Spokane Washington, United States
20.31.4×
181Hiratsuka Kanagawa, Japan
20.21.3×
181Basel Basel-City, Switzerland
20.21.3×
181Unna North Rhine-Westphalia, Germany
20.21.3×
181Lörrach Baden-Wurttemberg, Germany
20.21.3×
181Nîmes Occitanie, France
20.21.3×
186Saharsa Bihar, India
20.11.3×
186Aihara Kanagawa, Japan
20.11.3×
186Bern Bern, Switzerland
20.11.3×
186Augsburg Bavaria, Germany
20.11.3×
186Riedstadt Hesse, Germany
20.11.3×
186Westerville Ohio, United States
20.11.3×
192Agra Uttar Pradesh, India
20.01.3×
192Baden-Baden Baden-Wurttemberg, Germany
20.01.3×
192Trnava Trnava Region, Slovakia
20.01.3×
192Salamanca Guanajuato, Mexico
20.01.3×
192Montgomery Alabama, United States
20.01.3×
197Tumkūr Karnataka, India
19.91.3×
197Bydgoszcz Kujawsko-Pomorskie, Poland
19.91.3×
197Columbus Ohio, United States
19.91.3×
197Swift Current Saskatchewan, Canada
19.91.3×

Top 200 of 2,280 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