SmogRank / History / week of August 4, 2025

Most polluted cities, week of August 4, 2025

2,254 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	Karur Tamil Nadu, India	985.0
2	Ceglie Messapica Apulia, Italy	169.1
3	Sri Ganganagar Rajasthan, India	111.1
4	Nagapattinam Tamil Nadu, India	67.9
5	Manama Manama, Bahrain	59.6
6	Cuddalore Tamil Nadu, India	52.9
7	Prince Albert Saskatchewan, Canada	50.4
8	Gujranwala low-cost sensors Punjab, Pakistan	47.1
9	Gummidipundi Tamil Nadu, India	45.5
10	Muzaffarnagar Uttar Pradesh, India	45.3
11	Joda Odisha, India	43.7
12	Dhaulpur Rajasthan, India	42.7
13	Tonk Rajasthan, India	42.3
14	Winnipeg low-cost sensors Manitoba, Canada	42.0
15	Chittoor Andhra Pradesh, India	41.2
16	Chāpra Bihar, India	41.1
17	Faisalabad low-cost sensors Punjab, Pakistan	40.8
17	Dushanbe Dushanbe, Tajikistan	40.8
19	Rānipet Tamil Nadu, India	40.7
20	Bānswāra Rajasthan, India	40.2
20	Fort McMurray Alberta, Canada	40.2
22	Lahore low-cost sensors Punjab, Pakistan	39.7
22	Chānda Maharashtra, India	39.7
24	Greater Noida Uttar Pradesh, India	39.4
25	Anantapur Andhra Pradesh, India	38.4
26	Vijayawada Andhra Pradesh, India	38.1
27	Bhiwadi Rajasthan, India	37.8
28	Saharsa Bihar, India	37.5
28	Jakarta Jakarta, Indonesia	37.5
30	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	37.3
31	Rawalpindi low-cost sensors Punjab, Pakistan	36.5
32	Rasapūdipalem Andhra Pradesh, India	36.4
33	Panvel Maharashtra, India	35.8
34	Kadapa Andhra Pradesh, India	35.7
35	Tema low-cost sensors Greater Accra, Ghana	35.5
36	Kalyān Maharashtra, India	35.3
37	Baddi Himachal Pradesh, India	35.1
38	Ghāziābād Uttar Pradesh, India	34.9
39	Nanded Maharashtra, India	34.7
40	Buffalo New York, United States	34.4
41	Iloilo low-cost sensors Western Visayas, Philippines	34.0
42	Islamabad low-cost sensors Islamabad, Pakistan	33.8
43	Sialkot low-cost sensors Punjab, Pakistan	33.7
44	Nagaon Assam, India	33.6
45	Tongaat low-cost sensors KwaZulu-Natal, South Africa	33.5
46	Hājīpur Bihar, India	33.3
47	Singrauli Madhya Pradesh, India	33.2
48	Multan low-cost sensors Punjab, Pakistan	33.1
49	Nalbāri Assam, India	32.9
50	Newmarket Ontario, Canada	32.8
51	Saugor Madhya Pradesh, India	32.4
51	Kanchipuram Tamil Nadu, India	32.4
53	Rochester New York, United States	31.9
54	Tiruchirappalli Tamil Nadu, India	31.7
55	Bhāgalpur Bihar, India	31.0
55	Badlapur Maharashtra, India	31.0
55	Toronto Ontario, Canada	31.0
58	Brantford Ontario, Canada	30.9
59	Saskatoon Saskatchewan, Canada	30.7
59	Vapi Gujarat, India	30.7
61	Bhiwandi Maharashtra, India	30.6
61	San Francisco De Borja Lima region, Peru	30.6
63	Dādri Uttar Pradesh, India	30.5
64	Morādābād Uttar Pradesh, India	30.2
64	Jalandhar Punjab, India	30.2
64	Ajmer Rajasthan, India	30.2
64	Oconomowoc low-cost sensors Wisconsin, United States	30.2
68	Addis Ababa Addis Ababa, Ethiopia	30.1
68	Milton Ontario, Canada	30.1
70	Rourkela Odisha, India	30.0
70	Nepean low-cost sensors Ontario, Canada	30.0
72	Dausa Rajasthan, India	29.9
72	Arāria Bihar, India	29.9
74	Malegaon Maharashtra, India	29.7
75	Kitchener Ontario, Canada	29.6
76	London Ontario, Canada	29.5
77	Syracuse New York, United States	29.3
78	Pratāpgarh Rajasthan, India	29.2
79	Jaipur Rajasthan, India	29.0
80	Barrie Ontario, Canada	28.9
81	Chittorgarh Rajasthan, India	28.6
81	Belleville Ontario, Canada	28.6
81	Hamilton Ontario, Canada	28.6
81	St. Catharines Ontario, Canada	28.6
81	Noida Uttar Pradesh, India	28.6
81	Santa Anita - Los Ficus Lima region, Peru	28.6
87	Sarnia Ontario, Canada	28.5
87	St. Thomas Ontario, Canada	28.5
89	Tirupparangunram Tamil Nadu, India	28.3
89	Barbil Odisha, India	28.3
91	Brampton Ontario, Canada	28.2
92	Oakville Ontario, Canada	28.1
93	Windsor Ontario, Canada	28.0
94	Nagpur Maharashtra, India	27.9
95	Durgapur West Bengal, India	27.7
96	Baripāda Odisha, India	27.6
96	Fuenlabrada Madrid, Spain	27.6
98	Dhule Maharashtra, India	27.5
99	Angul Odisha, India	27.4
99	Superior Wisconsin, United States	27.4
101	Dūngarpur Rajasthan, India	27.3
102	Erie Pennsylvania, United States	27.2
102	Kingston Ontario, Canada	27.2
104	Narela Delhi, India	27.1
104	Jalgaon Maharashtra, India	27.1
104	Port Huron Michigan, United States	27.1
104	Guelph Ontario, Canada	27.1
108	Accra low-cost sensors Greater Accra, Ghana	27.0
108	Alliston Ontario, Canada	27.0
110	Hyderabad Telangana, India	26.9
110	Hāpur Uttar Pradesh, India	26.9
112	Delhi Delhi, India	26.7
113	Waterdown Ontario, Canada	26.6
114	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	26.5
114	Neelankarai Tamil Nadu, India	26.5
116	Albany New York, United States	26.4
117	Ahmedabad Gujarat, India	26.3
117	Peterborough Ontario, Canada	26.3
119	Callao Callao, Peru	26.0
120	Green Bay Wisconsin, United States	25.7
121	Scranton Pennsylvania, United States	25.5
121	Mississauga Ontario, Canada	25.5
123	Kolkata West Bengal, India	25.4
123	Bhelai Chhattisgarh, India	25.4
125	Detroit Michigan, United States	25.2
125	Southfield Michigan, United States	25.2
127	Istanbul low-cost sensors Istanbul, Turkey	25.1
128	Patna Bihar, India	24.9
128	Nashik Maharashtra, India	24.9
128	Jaén Andalusia, Spain	24.9
131	Chandigarh Chandigarh, India	24.8
131	Dearborn Michigan, United States	24.8
133	Rājsamand Rajasthan, India	24.7
134	Kota Rajasthan, India	24.5
135	Ariyalūr Tamil Nadu, India	24.4
135	Aya Nagar Delhi, India	24.4
137	Rānīganj West Bengal, India	24.3
137	Gwalior Madhya Pradesh, India	24.3
139	Gūduvāncheri Tamil Nadu, India	24.2
139	Utica New York, United States	24.2
141	Medina Estates low-cost sensors Greater Accra, Ghana	23.9
142	Pune Maharashtra, India	23.8
142	Ankleshwar Gujarat, India	23.8
144	Jhālāwār Rajasthan, India	23.4
144	Indore Madhya Pradesh, India	23.4
144	Chūru Rajasthan, India	23.4
147	Amravati Maharashtra, India	23.3
147	Ourense Galicia, Spain	23.3
147	Appleton Wisconsin, United States	23.3
147	Milwaukee Wisconsin, United States	23.3
147	Sault Ste. Marie Ontario, Canada	23.3
152	Jhunjhunūn Rajasthan, India	23.2
153	Pittsfield Massachusetts, United States	23.1
154	Sāngli Maharashtra, India	23.0
154	Cleveland Ohio, United States	23.0
154	Rutland Vermont, United States	23.0
157	Bay City Michigan, United States	22.9
158	Gaya Bihar, India	22.8
158	San Francisco Tlalcilalcalpan México, Mexico	22.8
158	Franklin Park Illinois, United States	22.8
161	Lincoln Park Michigan, United States	22.7
161	Marquette Michigan, United States	22.7
161	Steubenville Ohio, United States	22.7
161	Pimpri-Chinchwad Maharashtra, India	22.7
165	Palencia Castille and León, Spain	22.6
166	Manlleu Catalonia, Spain	22.5
166	Serilingampalle Telangana, India	22.5
168	Ann Arbor low-cost sensors Michigan, United States	22.4
168	Chatham Ontario, Canada	22.4
170	Gandhinagar Gujarat, India	22.3
171	Patiāla Punjab, India	22.2
171	Quezon City low-cost sensors National Capital Region, Philippines	22.2
171	Byasanagar Odisha, India	22.2
174	Xonacatlán México, Mexico	22.1
175	Vijayapura Karnataka, India	22.0
176	Āsansol West Bengal, India	21.9
176	Haldia West Bengal, India	21.9
176	Elmwood Park Illinois, United States	21.9
179	Des Plaines Illinois, United States	21.8
179	Eastpointe Michigan, United States	21.8
179	Taylor Michigan, United States	21.8
179	Warren Ohio, United States	21.8
179	Wadgaon Kolhati Maharashtra, India	21.8
184	Sawai Madhopur Rajasthan, India	21.7
184	Wan Chai Wan Chai, Hong Kong	21.7
184	Lansing Michigan, United States	21.7
187	Dubai low-cost sensors Dubai, United Arab Emirates	21.5
187	Karachi low-cost sensors Sindh, Pakistan	21.5
187	Akola Maharashtra, India	21.5
187	Valdemoro Madrid, Spain	21.5
187	Pasadena low-cost sensors California, United States	21.5
192	Hyderabad low-cost sensors Sindh, Pakistan	21.4
192	Redford Michigan, United States	21.4
192	Youngstown Ohio, United States	21.4
192	Granby Quebec, Canada	21.4
196	Sarajevo Federation of B&H, Bosnia and Herzegovina	21.2
196	Wyoming Michigan, United States	21.2
196	Ypsilanti Michigan, United States	21.2
199	Aurangabad Maharashtra, India	21.1
199	Ōtsuki Yamanashi, Japan	21.1

Top 200 of 2,254 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