SmogRank / History / October 1, 2025

Most polluted cities on October 1, 2025

1,700 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← September 30, 2025October 2, 2025 →
#City µg/m³× WHO
1Saltillo Coahuila, Mexico
547.036.5×
2Tirupparangunram Tamil Nadu, India
188.012.5×
3Gujranwala low-cost sensors Punjab, Pakistan
128.08.5×
4Lahore low-cost sensors Punjab, Pakistan
105.07.0×
5Faridabad Haryana, India
103.06.9×
6Sialkot low-cost sensors Punjab, Pakistan
98.06.5×
7Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
96.36.4×
8Faisalabad low-cost sensors Punjab, Pakistan
93.66.2×
9Gummidipundi Tamil Nadu, India
91.96.1×
10Chāpra Bihar, India
64.84.3×
11Gurugram Haryana, India
62.84.2×
12Bānswāra Rajasthan, India
57.03.8×
13Rawalpindi low-cost sensors Punjab, Pakistan
55.83.7×
14Dādri Uttar Pradesh, India
55.33.7×
15Multan low-cost sensors Punjab, Pakistan
53.73.6×
16Muzaffarnagar Uttar Pradesh, India
53.23.5×
17Edmonton Alberta, Canada
53.13.5×
18Narela Delhi, India
52.93.5×
19Dushanbe Dushanbe, Tajikistan
52.83.5×
20Noida Uttar Pradesh, India
51.53.4×
21Dubai low-cost sensors Dubai, United Arab Emirates
51.33.4×
22Ghāziābād Uttar Pradesh, India
49.63.3×
23Chittoor Andhra Pradesh, India
49.23.3×
24Serilingampalle Telangana, India
48.43.2×
25Changchun low-cost sensors Jilin, China
46.03.1×
26Greater Noida Uttar Pradesh, India
45.93.1×
27Cuddalore Tamil Nadu, India
44.73.0×
27Sherwood Park Alberta, Canada
44.73.0×
29Hāpur Uttar Pradesh, India
44.12.9×
30Rānīganj West Bengal, India
43.32.9×
31Morādābād Uttar Pradesh, India
42.22.8×
32Delhi Delhi, India
42.12.8×
33Bhiwadi Rajasthan, India
41.42.8×
34Bhāgalpur Bihar, India
38.42.6×
35Buxar Bihar, India
37.72.5×
36Hyderabad low-cost sensors Sindh, Pakistan
37.52.5×
37Meerut Uttar Pradesh, India
37.32.5×
38Durgapur West Bengal, India
37.02.5×
39Lucknow Uttar Pradesh, India
36.92.5×
40Āsansol West Bengal, India
36.72.4×
40Mohali Punjab, India
36.72.4×
42Hanumāngarh Rajasthan, India
36.02.4×
43St. Albert Alberta, Canada
35.62.4×
44Quetta low-cost sensors Balochistan, Pakistan
35.52.4×
44Bahawalpur low-cost sensors Punjab, Pakistan
35.52.4×
46Aya Nagar Delhi, India
34.92.3×
47Rasapūdipalem Andhra Pradesh, India
34.02.3×
48Nagaon Assam, India
33.32.2×
49Angul Odisha, India
33.02.2×
50Malegaon Maharashtra, India
32.42.2×
50Hājīpur Bihar, India
32.42.2×
50Sri Ganganagar Rajasthan, India
32.42.2×
53Bāghpat Uttar Pradesh, India
32.22.1×
54Jalandhar Punjab, India
31.72.1×
54Quthbullapur Telangana, India
31.72.1×
56Nalbāri Assam, India
31.52.1×
57Najafgarh Delhi, India
31.42.1×
58Tonk Rajasthan, India
31.22.1×
59San Francisco Tlalcilalcalpan México, Mexico
31.12.1×
60Ropar Punjab, India
30.22.0×
60Rourkela Odisha, India
30.22.0×
60Patna Bihar, India
30.22.0×
60Chennai Tamil Nadu, India
30.22.0×
64Porto low-cost sensors Porto, Portugal
30.12.0×
64San Salvador Tizatlalli México, Mexico
30.12.0×
66Obrenovac Central Serbia, Serbia
30.02.0×
67Karachi low-cost sensors Sindh, Pakistan
29.01.9×
68Wadgaon Kolhati Maharashtra, India
28.71.9×
69Ajmer Rajasthan, India
28.61.9×
70Haarlem low-cost sensors North Holland, The Netherlands
28.01.9×
71Chandigarh Chandigarh, India
27.71.8×
72Vereeniging low-cost sensors Gauteng, South Africa
27.51.8×
73Agra Uttar Pradesh, India
26.21.7×
74Kota Rajasthan, India
25.81.7×
75Beersel low-cost sensors Flanders, Belgium
25.71.7×
76Vapi Gujarat, India
25.31.7×
77Overijse low-cost sensors Flanders, Belgium
25.11.7×
78Užice Central Serbia, Serbia
24.91.7×
78Kharghar Maharashtra, India
24.91.7×
80Thānesar Haryana, India
24.51.6×
80Jalgaon Maharashtra, India
24.51.6×
82Chānda Maharashtra, India
24.41.6×
82Barbil Odisha, India
24.41.6×
84Lagos low-cost sensors Lagos, Nigeria
24.31.6×
85Silchar Assam, India
24.21.6×
86Aurangabad Maharashtra, India
24.01.6×
86Łask Łódź Voivodeship, Poland
24.01.6×
88Jaipur Rajasthan, India
23.71.6×
88Chrang Chamreh Muoy low-cost sensors Phnom Penh, Cambodia
23.71.6×
90Rājgīr Bihar, India
23.01.5×
90Mankato Minnesota, United States
23.01.5×
92Dhule Maharashtra, India
22.81.5×
93Quezon City low-cost sensors National Capital Region, Philippines
22.61.5×
94Saugor Madhya Pradesh, India
22.51.5×
94Cholula Puebla, Mexico
22.51.5×
94Neelankarai Tamil Nadu, India
22.51.5×
97Winterthur low-cost sensors Zurich, Switzerland
22.31.5×
98Sirsa Haryana, India
22.11.5×
99Ciudad Benito Juárez Nuevo León, Mexico
22.01.5×
100Ahilyanagar Maharashtra, India
21.91.5×
101Coimbatore Tamil Nadu, India
21.81.5×
101Říčany low-cost sensors Central Bohemia, Czechia
21.81.5×
101Mexico City Mexico City, Mexico
21.81.5×
104Sāngli Maharashtra, India
21.61.4×
105Tuxtla Chiapas, Mexico
21.51.4×
106Ankleshwar Gujarat, India
21.31.4×
107Houston Texas, United States
21.01.4×
108Pratāpgarh Rajasthan, India
20.91.4×
109Iloilo low-cost sensors Western Visayas, Philippines
20.61.4×
110Kalisz Greater Poland, Poland
20.51.4×
111Istanbul low-cost sensors Istanbul, Turkey
20.41.4×
111Indore Madhya Pradesh, India
20.41.4×
113Dębica Subcarpathia, Poland
20.31.4×
113Jhālāwār Rajasthan, India
20.31.4×
115Smederevo Central Serbia, Serbia
20.11.3×
115Haldia West Bengal, India
20.11.3×
117Madikeri Karnataka, India
20.01.3×
117Poznań Greater Poland, Poland
20.01.3×
119Shivamogga Karnataka, India
19.81.3×
119Saskatoon Saskatchewan, Canada
19.81.3×
121Niš Central Serbia, Serbia
19.61.3×
121The Hague South Holland, The Netherlands
19.61.3×
121Sulphur Louisiana, United States
19.61.3×
124Yuanlin Taiwan, Taiwan
19.51.3×
125Jhunjhunūn Rajasthan, India
19.41.3×
125Fengshan Takao, Taiwan
19.41.3×
125Rotterdam South Holland, The Netherlands
19.41.3×
125Jastrzębie Zdrój Silesia, Poland
19.41.3×
129Badlapur Maharashtra, India
19.31.3×
129Douliu Taiwan, Taiwan
19.31.3×
131Bengaluru Karnataka, India
19.21.3×
131Amravati Maharashtra, India
19.21.3×
131Ahmedabad Gujarat, India
19.21.3×
134Santa Catarina Nuevo León, Mexico
19.11.3×
135Mahād Maharashtra, India
19.01.3×
135Fort Dodge Iowa, United States
19.01.3×
137Perundurai Tamil Nadu, India
18.71.2×
137Rairangpur Odisha, India
18.71.2×
137Wan Chai Wan Chai, Hong Kong
18.71.2×
140Nagpur Maharashtra, India
18.61.2×
140Kalaburagi Karnataka, India
18.61.2×
142Bhilwara Rajasthan, India
18.41.2×
143Erlun Taiwan, Taiwan
18.21.2×
143Zhushan Taiwan, Taiwan
18.21.2×
145Gdynia Pomerania, Poland
18.01.2×
146Kanpur Uttar Pradesh, India
17.91.2×
147Kalyān Maharashtra, India
17.81.2×
147Akola Maharashtra, India
17.81.2×
147Ciudad Juárez Chihuahua, Mexico
17.81.2×
150Owensboro Kentucky, United States
17.71.2×
151Tula de Allende Hidalgo, Mexico
17.61.2×
151Moore Oklahoma, United States
17.61.2×
153Thāne Maharashtra, India
17.51.2×
153Kolkata West Bengal, India
17.51.2×
153Bārān Rajasthan, India
17.51.2×
153Arrah Bihar, India
17.51.2×
153Ashaiman low-cost sensors Greater Accra, Ghana
17.51.2×
153Bielsko-Biala Silesia, Poland
17.51.2×
153Puebla Puebla, Mexico
17.51.2×
160Virār Maharashtra, India
17.41.2×
160Chūru Rajasthan, India
17.41.2×
160Cadereyta Jiménez Nuevo León, Mexico
17.41.2×
163Lugu Taiwan, Taiwan
17.31.2×
163Cambridge low-cost sensors England, United Kingdom
17.31.2×
165Wawer Mazovia, Poland
17.21.1×
165Gwalior Madhya Pradesh, India
17.21.1×
165Wrocław Lower Silesia, Poland
17.21.1×
168Panvel Maharashtra, India
17.11.1×
168Nantou Taiwan, Taiwan
17.11.1×
168Łódź Łódź Voivodeship, Poland
17.11.1×
171Belgrade Central Serbia, Serbia
17.01.1×
171Banja Luka Srpska, Bosnia and Herzegovina
17.01.1×
173Agartala Tripura, India
16.81.1×
174Toruń Kujawsko-Pomorskie, Poland
16.71.1×
174Pasadena Texas, United States
16.71.1×
176Hubballi Karnataka, India
16.61.1×
176Baytown Texas, United States
16.61.1×
178Chiayi City Taiwan, Taiwan
16.51.1×
178Kansas City Kansas, United States
16.51.1×
180Pune Maharashtra, India
16.41.1×
180Taichung Taiwan, Taiwan
16.41.1×
182Nashik Maharashtra, India
16.31.1×
182Kłodzko Lower Silesia, Poland
16.31.1×
184Radom Mazovia, Poland
16.21.1×
184Jodhpur Rajasthan, India
16.21.1×
184Gaya Bihar, India
16.21.1×
184Breda North Brabant, The Netherlands
16.21.1×
184Radomsko Łódź Voivodeship, Poland
16.21.1×
184Saint Joseph Missouri, United States
16.21.1×
190Mumbai Maharashtra, India
16.01.1×
190Zielona Góra Lubusz, Poland
16.01.1×
190Włocławek Kujawsko-Pomorskie, Poland
16.01.1×
190Salamanca Guanajuato, Mexico
16.01.1×
194Chittorgarh Rajasthan, India
15.91.1×
194Tema low-cost sensors Greater Accra, Ghana
15.91.1×
194Prince Albert Saskatchewan, Canada
15.91.1×
197Parbhani Maharashtra, India
15.81.1×
197Erlin Taiwan, Taiwan
15.81.1×
199Dallas Texas, United States
15.61.0×
199Des Moines Iowa, United States
15.61.0×

Top 200 of 1,700 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