SmogRank / History / week of August 25, 2025

Most polluted cities, week of August 25, 2025

2,255 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	Saltillo Coahuila, Mexico	367.3
2	Rourkela Odisha, India	229.0
3	Gummidipundi Tamil Nadu, India	138.7
4	Cuddalore Tamil Nadu, India	92.5
5	Vereeniging low-cost sensors Gauteng, South Africa	72.3
6	Faisalabad low-cost sensors Punjab, Pakistan	60.4
7	Singrauli Madhya Pradesh, India	47.6
8	Multan low-cost sensors Punjab, Pakistan	45.8
9	Istanbul low-cost sensors Istanbul, Turkey	44.5
10	Mangaluru Karnataka, India	43.8
11	Kanpur Uttar Pradesh, India	43.6
12	Tirupati Andhra Pradesh, India	43.3
12	Dhaulpur Rajasthan, India	43.3
14	Sri Ganganagar Rajasthan, India	43.1
15	Bahawalpur low-cost sensors Punjab, Pakistan	42.2
16	Vijayawada Andhra Pradesh, India	42.0
17	Dubai low-cost sensors Dubai, United Arab Emirates	41.9
18	Harare low-cost sensors Harare, Zimbabwe	40.6
19	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	39.0
20	Fort McMurray Alberta, Canada	38.4
21	Buxar Bihar, India	37.7
22	Undera Gujarat, India	37.6
23	Nagaon Assam, India	37.5
24	Tonk Rajasthan, India	37.4
25	Ashaiman low-cost sensors Greater Accra, Ghana	36.8
26	Gujranwala low-cost sensors Punjab, Pakistan	36.6
26	Bhiwadi Rajasthan, India	36.6
28	Lahore low-cost sensors Punjab, Pakistan	35.1
29	Grande Prairie Alberta, Canada	35.0
30	Nalbāri Assam, India	34.9
31	Surat Gujarat, India	34.0
31	Muzaffarnagar Uttar Pradesh, India	34.0
31	Noida Uttar Pradesh, India	34.0
34	Hyderabad Telangana, India	33.0
35	Narela Delhi, India	32.5
36	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	32.3
37	Hyderabad low-cost sensors Sindh, Pakistan	31.5
38	Rasapūdipalem Andhra Pradesh, India	31.3
38	Quthbullapur Telangana, India	31.3
38	Serilingampalle Telangana, India	31.3
41	Dausa Rajasthan, India	31.2
42	Karachi low-cost sensors Sindh, Pakistan	30.7
43	Tirupparangunram Tamil Nadu, India	30.4
44	Morādābād Uttar Pradesh, India	30.3
45	Karauli Rajasthan, India	30.1
46	Richards Bay low-cost sensors KwaZulu-Natal, South Africa	30.0
47	Wadgaon Kolhati Maharashtra, India	29.9
48	Anantapur Andhra Pradesh, India	29.6
49	Lagos low-cost sensors Lagos, Nigeria	29.5
50	Greater Noida Uttar Pradesh, India	29.4
51	Delhi Delhi, India	29.3
52	Cholula Puebla, Mexico	29.2
53	Lucknow Uttar Pradesh, India	28.8
53	Chāpra Bihar, India	28.8
55	Quetta low-cost sensors Balochistan, Pakistan	28.1
56	Tema low-cost sensors Greater Accra, Ghana	28.0
57	Ajmer Rajasthan, India	27.9
58	Edmonton Alberta, Canada	27.7
58	Neelankarai Tamil Nadu, India	27.7
60	Sialkot low-cost sensors Punjab, Pakistan	27.4
60	Agra Uttar Pradesh, India	27.4
62	Dādri Uttar Pradesh, India	26.9
63	Arāria Bihar, India	26.8
64	Ankleshwar Gujarat, India	26.6
65	Kalyān Maharashtra, India	26.4
65	Joda Odisha, India	26.4
67	Patna Bihar, India	26.3
68	Ghāziābād Uttar Pradesh, India	26.2
69	Begusarai Bihar, India	25.6
70	Ahmedabad Gujarat, India	25.5
71	Chennai Tamil Nadu, India	25.4
71	Badlapur Maharashtra, India	25.4
73	Ropar Punjab, India	24.8
73	Anan Tokushima, Japan	24.8
75	Ōtsuki Yamanashi, Japan	24.6
76	Gwalior Madhya Pradesh, India	24.5
77	Najafgarh Delhi, India	24.0
77	Nāgaur Rajasthan, India	24.0
77	San Salvador Tizatlalli México, Mexico	24.0
80	Rawalpindi low-cost sensors Punjab, Pakistan	23.7
81	Rājsamand Rajasthan, India	23.5
82	Bhāgalpur Bihar, India	23.1
83	Baddi Himachal Pradesh, India	22.9
84	Pratāpgarh Rajasthan, India	22.8
85	Hāpur Uttar Pradesh, India	22.6
86	Nanded Maharashtra, India	22.5
86	Boisar Maharashtra, India	22.5
88	Panvel Maharashtra, India	22.3
88	Kota Rajasthan, India	22.3
88	Gandhinagar Gujarat, India	22.3
88	Aya Nagar Delhi, India	22.3
92	Nagpur Maharashtra, India	22.2
93	Bikaner Rajasthan, India	22.1
94	Silchar Assam, India	22.0
94	Vijayapura Karnataka, India	22.0
96	Kamojimachō-jōgejima Tokushima, Japan	21.9
97	Jalandhar Punjab, India	21.6
98	Quezon City low-cost sensors National Capital Region, Philippines	21.5
99	Tuxtla Chiapas, Mexico	21.3
100	Kolkata West Bengal, India	21.1
101	Jabalpur Madhya Pradesh, India	21.0
101	Lewiston Idaho, United States	21.0
103	Prince George British Columbia, Canada	20.9
104	Accra low-cost sensors Greater Accra, Ghana	20.8
105	Hanumāngarh Rajasthan, India	20.5
105	St. Albert Alberta, Canada	20.5
107	Rānīganj West Bengal, India	20.2
107	Taguig low-cost sensors National Capital Region, Philippines	20.2
109	Lorca Murcia, Spain	20.1
110	Bhiwandi Maharashtra, India	20.0
110	Arida Wakayama, Japan	20.0
112	Addis Ababa Addis Ababa, Ethiopia	19.9
112	Durgapur West Bengal, India	19.9
112	Kainan Wakayama, Japan	19.9
115	Higashinozoe Hyōgo, Japan	19.7
115	Jaén Andalusia, Spain	19.7
117	Shivamogga Karnataka, India	19.6
117	Fort St. John British Columbia, Canada	19.6
117	Mima Tokushima, Japan	19.6
120	Aioi Hyōgo, Japan	19.5
120	Bend Oregon, United States	19.5
120	Bizen Okayama, Japan	19.5
123	Ono Hyōgo, Japan	19.4
124	Chigasaki Kanagawa, Japan	19.3
125	Shido Kagawa, Japan	19.2
126	Kofu Yamanashi, Japan	19.1
127	Angul Odisha, India	19.0
127	Akashi Hyōgo, Japan	19.0
127	Kharghar Maharashtra, India	19.0
130	Gaya Bihar, India	18.9
130	Chānda Maharashtra, India	18.9
130	Kariya Hyōgo, Japan	18.9
130	Puebla Puebla, Mexico	18.9
130	Matsusaka Mie, Japan	18.9
135	Narutochō-mitsuishi Tokushima, Japan	18.8
135	Kakogawachō-honmachi Hyōgo, Japan	18.8
137	Islamabad low-cost sensors Islamabad, Pakistan	18.7
137	Sherwood Park Alberta, Canada	18.7
137	Tatsuno Hyōgo, Japan	18.7
140	Tsuchiura Ibaraki, Japan	18.6
141	Sirohi Rajasthan, India	18.5
141	Sandachō Hyōgo, Japan	18.5
141	Odawara Kanagawa, Japan	18.5
141	Kishiwada Osaka, Japan	18.5
141	Kashiwara Nara, Japan	18.5
141	Ikedachō Tokushima, Japan	18.5
147	Saugor Madhya Pradesh, India	18.4
147	Bengaluru Karnataka, India	18.4
147	Atami Shizuoka, Japan	18.4
147	Ayase Kanagawa, Japan	18.4
147	Yoshinogawa Tokushima, Japan	18.4
152	Nishinomiya Hyōgo, Japan	18.3
152	Ikaruga Hyōgo, Japan	18.3
152	Medina Estates low-cost sensors Greater Accra, Ghana	18.3
155	Tokushima Tokushima, Japan	18.2
155	Iwade Wakayama, Japan	18.2
155	Kamisu Ibaraki, Japan	18.2
158	Okayama Okayama, Japan	18.1
158	Amagasaki Hyōgo, Japan	18.1
158	Naka Ibaraki, Japan	18.1
161	Takarazuka Hyōgo, Japan	18.0
162	Aihara Kanagawa, Japan	17.8
162	León de los Aldama Guanajuato, Mexico	17.8
164	Chittorgarh Rajasthan, India	17.7
164	Sakai Osaka, Japan	17.7
166	Minamirinkan Kanagawa, Japan	17.6
166	Gotemba Shizuoka, Japan	17.6
166	Minawa Kanagawa, Japan	17.6
169	Jaisalmer Rajasthan, India	17.5
169	Shingū Wakayama, Japan	17.5
169	Kobe Hyōgo, Japan	17.5
169	Kinokawa Wakayama, Japan	17.5
169	Fujiyoshida Yamanashi, Japan	17.5
174	Chūru Rajasthan, India	17.4
174	Tamano Okayama, Japan	17.4
174	Minato Wakayama, Japan	17.4
174	Saikū Mie, Japan	17.4
178	Jalgaon Maharashtra, India	17.3
178	Jaipur Rajasthan, India	17.3
178	Arrah Bihar, India	17.3
178	Shimo-tsuma Ibaraki, Japan	17.3
178	Osaka Osaka, Japan	17.3
178	Naucalpan de Juárez México, Mexico	17.3
184	Baripāda Odisha, India	17.2
184	Tahara Aichi, Japan	17.2
184	Kakegawa Shizuoka, Japan	17.2
184	Ise Mie, Japan	17.2
184	Hadano Kanagawa, Japan	17.2
184	Chiba Chiba, Japan	17.2
184	Hiragi Kagawa, Japan	17.2
191	Yokkaichi Mie, Japan	17.1
191	Kurashiki Okayama, Japan	17.1
191	Izumisano Osaka, Japan	17.1
191	Izumi Osaka, Japan	17.1
191	Himeji Hyōgo, Japan	17.1
196	Āsansol West Bengal, India	17.0
196	Owase Mie, Japan	17.0
196	Kashihara-shi Nara, Japan	17.0
196	Kariya Aichi, Japan	17.0
196	Ikoma Nara, Japan	17.0

Top 200 of 2,255 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