SmogRank / History / August 2025

Most polluted cities, August 2025

2,155 cities ranked by their average PM2.5 over the 31 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³
1	Cuddalore Tamil Nadu, India	74.4
2	Gummidipundi Tamil Nadu, India	74.3
3	Singrauli Madhya Pradesh, India	69.0
4	Rourkela Odisha, India	68.7
5	Sri Ganganagar Rajasthan, India	66.9
6	Dhaulpur Rajasthan, India	64.8
7	Faisalabad low-cost sensors Punjab, Pakistan	54.9
8	Vereeniging low-cost sensors Gauteng, South Africa	50.7
9	Gujranwala low-cost sensors Punjab, Pakistan	46.9
10	Ponferrada Castille and León, Spain	44.5
11	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	42.4
12	Lahore low-cost sensors Punjab, Pakistan	41.7
13	Multan low-cost sensors Punjab, Pakistan	41.6
14	Arāria Bihar, India	41.4
15	Dushanbe Dushanbe, Tajikistan	40.4
16	Vijayawada Andhra Pradesh, India	39.1
17	Chāpra Bihar, India	38.2
18	Buxar Bihar, India	37.6
19	Mangaluru Karnataka, India	37.3
20	Bhiwadi Rajasthan, India	36.0
21	Tonk Rajasthan, India	35.8
22	Nalbāri Assam, India	35.7
23	Muzaffarnagar Uttar Pradesh, India	35.4
24	Istanbul low-cost sensors Istanbul, Turkey	35.3
24	Greater Noida Uttar Pradesh, India	35.3
26	Fort McMurray Alberta, Canada	35.0
27	Nagaon Assam, India	34.6
28	Sialkot low-cost sensors Punjab, Pakistan	34.5
29	Rasapūdipalem Andhra Pradesh, India	34.1
30	Anantapur Andhra Pradesh, India	33.5
31	Rawalpindi low-cost sensors Punjab, Pakistan	33.4
32	Saharsa Bihar, India	32.8
33	Ashaiman low-cost sensors Greater Accra, Ghana	32.1
34	Morādābād Uttar Pradesh, India	31.5
35	Noida Uttar Pradesh, India	31.3
36	Dubai low-cost sensors Dubai, United Arab Emirates	31.1
37	Narela Delhi, India	30.8
38	Ajmer Rajasthan, India	30.1
39	Bahawalpur low-cost sensors Punjab, Pakistan	29.8
40	Dādri Uttar Pradesh, India	29.6
41	Bhāgalpur Bihar, India	29.2
42	Kalyān Maharashtra, India	29.0
43	Shakaskraal low-cost sensors KwaZulu-Natal, South Africa	28.9
43	Delhi Delhi, India	28.9
45	Ghāziābād Uttar Pradesh, India	28.3
46	Dausa Rajasthan, India	28.2
47	Hyderabad Telangana, India	28.0
47	Santa Lucía Canary Islands, Spain	28.0
49	Baddi Himachal Pradesh, India	27.2
50	Malegaon Maharashtra, India	27.1
51	Joda Odisha, India	27.0
51	Aya Nagar Delhi, India	27.0
53	Karachi low-cost sensors Sindh, Pakistan	26.8
53	Cholula Puebla, Mexico	26.8
55	Tema low-cost sensors Greater Accra, Ghana	26.7
56	León Castille and León, Spain	26.5
57	Tirupparangunram Tamil Nadu, India	26.2
58	Bānswāra Rajasthan, India	26.1
59	Addis Ababa Addis Ababa, Ethiopia	26.0
59	Islamabad low-cost sensors Islamabad, Pakistan	26.0
61	Chānda Maharashtra, India	25.5
62	Bhiwandi Maharashtra, India	25.1
63	Jalandhar Punjab, India	25.0
63	Hāpur Uttar Pradesh, India	25.0
63	Badlapur Maharashtra, India	25.0
66	Kanpur Uttar Pradesh, India	24.8
67	Jaipur Rajasthan, India	24.6
67	Gaya Bihar, India	24.6
69	Quetta low-cost sensors Balochistan, Pakistan	24.5
69	Wadgaon Kolhati Maharashtra, India	24.5
71	Fuenlabrada Madrid, Spain	24.3
71	Vapi Gujarat, India	24.3
73	Neelankarai Tamil Nadu, India	24.0
74	Baripāda Odisha, India	23.9
75	Begusarai Bihar, India	23.8
75	Iloilo low-cost sensors Western Visayas, Philippines	23.8
75	Tuxtla Chiapas, Mexico	23.8
78	Lucknow Uttar Pradesh, India	23.6
79	Móstoles Madrid, Spain	23.5
80	Ourense Galicia, Spain	23.4
81	Pratāpgarh Rajasthan, India	23.3
81	Patna Bihar, India	23.3
83	Saugor Madhya Pradesh, India	23.1
83	Nagpur Maharashtra, India	23.1
83	Ahmedabad Gujarat, India	23.1
86	Gwalior Madhya Pradesh, India	23.0
87	Najafgarh Delhi, India	22.9
87	Dhule Maharashtra, India	22.9
87	Jaén Andalusia, Spain	22.9
90	Rājsamand Rajasthan, India	22.6
90	Nanded Maharashtra, India	22.6
92	Chūru Rajasthan, India	22.5
93	Silchar Assam, India	22.0
93	Vijayapura Karnataka, India	22.0
95	Chennai Tamil Nadu, India	21.8
95	Kota Rajasthan, India	21.8
97	Durgapur West Bengal, India	21.7
98	Serilingampalle Telangana, India	21.6
99	Surat Gujarat, India	21.2
99	Accra low-cost sensors Greater Accra, Ghana	21.2
99	Manzanares Castille-La Mancha, Spain	21.2
102	San Salvador Tizatlalli México, Mexico	21.1
103	Karauli Rajasthan, India	21.0
103	Kolkata West Bengal, India	21.0
105	Rānīganj West Bengal, India	20.8
105	Panvel Maharashtra, India	20.8
107	Ankleshwar Gujarat, India	20.7
108	Winnipeg low-cost sensors Manitoba, Canada	20.6
109	Chittorgarh Rajasthan, India	20.4
110	Ōtsuki Yamanashi, Japan	20.3
111	Jhunjhunūn Rajasthan, India	20.2
111	Valdemoro Madrid, Spain	20.2
113	Superior Wisconsin, United States	20.1
114	Jumilla Murcia, Spain	19.9
114	Sarajevo Federation of B&H, Bosnia and Herzegovina	19.9
114	Prince Albert Saskatchewan, Canada	19.9
117	Medina Estates low-cost sensors Greater Accra, Ghana	19.7
117	Lorca Murcia, Spain	19.7
119	Angul Odisha, India	19.6
119	Changchun low-cost sensors Jilin, China	19.6
121	Quezon City low-cost sensors National Capital Region, Philippines	19.4
122	Manlleu Catalonia, Spain	19.3
123	Agra Uttar Pradesh, India	19.1
124	Bikaner Rajasthan, India	19.0
124	Bengaluru Karnataka, India	19.0
126	Jalgaon Maharashtra, India	18.9
126	Oconomowoc low-cost sensors Wisconsin, United States	18.9
128	Chandigarh Chandigarh, India	18.8
128	Medina del Campo Castille and León, Spain	18.8
130	Gudalur Tamil Nadu, India	18.7
131	Hubballi Karnataka, India	18.5
131	Mankato Minnesota, United States	18.5
133	Sawai Madhopur Rajasthan, India	18.3
133	Bhilwara Rajasthan, India	18.3
135	Dūngarpur Rajasthan, India	18.2
135	Anan Tokushima, Japan	18.2
135	Barbil Odisha, India	18.2
138	Palencia Castille and León, Spain	18.1
139	Gandhinagar Gujarat, India	18.0
139	Āsansol West Bengal, India	18.0
141	Pune Maharashtra, India	17.9
142	Bettiah Bihar, India	17.8
142	Arrah Bihar, India	17.8
142	Mollet del Vallès Catalonia, Spain	17.8
145	Nāgaur Rajasthan, India	17.6
145	Puebla Puebla, Mexico	17.6
147	Sīkar Rajasthan, India	17.5
148	Shivamogga Karnataka, India	17.4
148	Jhālāwār Rajasthan, India	17.4
148	Wan Chai Wan Chai, Hong Kong	17.4
148	Tepeji del Río de Ocampo Hidalgo, Mexico	17.4
152	Bārān Rajasthan, India	17.3
153	Boisar Maharashtra, India	17.2
153	Bhelai Chhattisgarh, India	17.2
153	Madrid Madrid, Spain	17.2
153	Byasanagar Odisha, India	17.2
157	Ropar Punjab, India	17.0
157	Jalor Rajasthan, India	17.0
157	Taguig low-cost sensors National Capital Region, Philippines	17.0
160	Alcantarilla Murcia, Spain	16.9
161	Nashik Maharashtra, India	16.8
161	Hanumāngarh Rajasthan, India	16.8
161	Aurangabad Maharashtra, India	16.8
161	Kamojimachō-jōgejima Tokushima, Japan	16.8
165	Sāngli Maharashtra, India	16.7
166	Amravati Maharashtra, India	16.5
166	Murcia Murcia, Spain	16.5
168	Tirumala Andhra Pradesh, India	16.4
168	Shrīrāmpur West Bengal, India	16.4
168	Naucalpan de Juárez México, Mexico	16.4
171	Yerevan low-cost sensors Yerevan, Armenia	16.3
171	Valencia Valencia, Spain	16.3
173	Richards Bay low-cost sensors KwaZulu-Natal, South Africa	16.2
173	Burgos Castille and León, Spain	16.2
173	Green Bay Wisconsin, United States	16.2
176	Coslada Madrid, Spain	16.1
176	Duluth Minnesota, United States	16.1
176	Tsuchiura Ibaraki, Japan	16.1
179	Bailén Andalusia, Spain	16.0
180	Perundurai Tamil Nadu, India	15.8
180	Molina de Segura Murcia, Spain	15.8
180	Columbia low-cost sensors Missouri, United States	15.8
180	Bizen Okayama, Japan	15.8
184	Barrio de Peral Murcia, Spain	15.7
184	Windsor Ontario, Canada	15.7
184	Kharghar Maharashtra, India	15.7
184	Mima Tokushima, Japan	15.7
188	Sirohi Rajasthan, India	15.6
188	Chigasaki Kanagawa, Japan	15.6
190	Lleida Catalonia, Spain	15.5
190	Aranda de Duero Castille and León, Spain	15.5
190	Milwaukee Wisconsin, United States	15.5
193	Kofu Yamanashi, Japan	15.4
193	Aihara Kanagawa, Japan	15.4
193	Nepean low-cost sensors Ontario, Canada	15.4
196	Ono Hyōgo, Japan	15.3
196	Wyoming Michigan, United States	15.3
196	Toronto Ontario, Canada	15.3
196	Ayase Kanagawa, Japan	15.3
200	Aioi Hyōgo, Japan	15.2

Top 200 of 2,155 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