SmogRank / History / week of September 29, 2025

Most polluted cities, week of September 29, 2025

2,071 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	127.1
2	Gujranwala low-cost sensors Punjab, Pakistan	97.2
3	Lahore low-cost sensors Punjab, Pakistan	96.9
4	Faisalabad low-cost sensors Punjab, Pakistan	92.9
5	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	87.6
6	Gummidipundi Tamil Nadu, India	77.4
7	Multan low-cost sensors Punjab, Pakistan	74.1
8	Sialkot low-cost sensors Punjab, Pakistan	73.0
9	Karauli Rajasthan, India	63.7
10	Dushanbe Dushanbe, Tajikistan	62.3
11	Narela Delhi, India	56.1
12	Bhiwadi Rajasthan, India	55.8
13	Ghāziābād Uttar Pradesh, India	55.6
14	Dādri Uttar Pradesh, India	55.0
15	Faridabad Haryana, India	53.2
16	Noida Uttar Pradesh, India	52.7
17	Hāpur Uttar Pradesh, India	52.1
18	Cuddalore Tamil Nadu, India	51.3
19	Bahawalpur low-cost sensors Punjab, Pakistan	51.1
20	Greater Noida Uttar Pradesh, India	49.1
21	Tirupparangunram Tamil Nadu, India	47.7
22	Rawalpindi low-cost sensors Punjab, Pakistan	47.2
22	Delhi Delhi, India	47.2
24	Salamanca Castille and León, Spain	46.6
25	Blantyre low-cost sensors Southern Region, Malawi	46.0
26	Hanumāngarh Rajasthan, India	45.0
27	Rasapūdipalem Andhra Pradesh, India	44.3
28	Tirupati Andhra Pradesh, India	43.8
29	Dubai low-cost sensors Dubai, United Arab Emirates	43.7
29	Muzaffarnagar Uttar Pradesh, India	43.7
31	Aya Nagar Delhi, India	41.7
32	Serilingampalle Telangana, India	40.8
33	Chāpra Bihar, India	40.7
34	Najafgarh Delhi, India	39.8
35	Meerut Uttar Pradesh, India	39.6
36	Morādābād Uttar Pradesh, India	39.5
37	Kadapa Andhra Pradesh, India	39.0
38	Buxar Bihar, India	37.9
39	Tonk Rajasthan, India	36.9
39	Gurugram Haryana, India	36.9
41	Changchun low-cost sensors Jilin, China	36.7
42	Lucknow Uttar Pradesh, India	35.2
43	Sri Ganganagar Rajasthan, India	34.9
44	Bāghpat Uttar Pradesh, India	34.2
45	Karachi low-cost sensors Sindh, Pakistan	34.0
46	Jalandhar Punjab, India	33.7
47	Mohali Punjab, India	33.5
48	Nagaon Assam, India	33.4
49	Quthbullapur Telangana, India	32.3
50	Quetta low-cost sensors Balochistan, Pakistan	32.2
50	Jaipur Rajasthan, India	32.2
52	Chandigarh Chandigarh, India	31.4
53	Patna Bihar, India	31.1
54	Nalbāri Assam, India	30.6
55	Srinagar Jammu and Kashmir, India	30.3
56	Arāria Bihar, India	30.1
57	Rānīganj West Bengal, India	29.9
58	Kharghar Maharashtra, India	29.8
59	Sirsa Haryana, India	29.7
59	Ropar Punjab, India	29.7
61	Ajmer Rajasthan, India	29.4
62	Rājgīr Bihar, India	28.7
63	Vapi Gujarat, India	28.2
64	Wenatchee Washington, United States	27.9
65	Vereeniging low-cost sensors Gauteng, South Africa	27.7
66	Chennai Tamil Nadu, India	27.4
67	Madikeri Karnataka, India	27.3
68	Patiāla Punjab, India	27.2
69	Coimbatore Tamil Nadu, India	26.8
70	Wadgaon Kolhati Maharashtra, India	26.4
71	Hājīpur Bihar, India	25.8
71	Baripāda Odisha, India	25.8
73	Łask Łódź Voivodeship, Poland	25.6
74	Silchar Assam, India	25.5
75	Bengaluru Karnataka, India	25.3
76	Iloilo low-cost sensors Western Visayas, Philippines	25.0
77	Rourkela Odisha, India	24.1
78	Aurangabad Maharashtra, India	23.9
79	Agra Uttar Pradesh, India	23.8
79	Quezon City low-cost sensors National Capital Region, Philippines	23.8
81	Jhunjhunūn Rajasthan, India	23.5
82	Bhopal Madhya Pradesh, India	23.3
83	Neelankarai Tamil Nadu, India	23.1
84	Gwalior Madhya Pradesh, India	22.9
84	Badlapur Maharashtra, India	22.9
84	Kalisz Greater Poland, Poland	22.9
87	Obrenovac Central Serbia, Serbia	22.7
87	Lagos low-cost sensors Lagos, Nigeria	22.7
87	San Salvador Tizatlalli México, Mexico	22.7
90	Istanbul low-cost sensors Istanbul, Turkey	22.6
91	Edmonton Alberta, Canada	22.3
92	Sāngli Maharashtra, India	22.1
92	Cuttack Odisha, India	22.1
92	Bharatpur Rajasthan, India	22.1
95	Āsansol West Bengal, India	22.0
96	Saugor Madhya Pradesh, India	21.8
97	Jabalpur Madhya Pradesh, India	21.4
98	Dhule Maharashtra, India	21.2
99	Jastrzębie Zdrój Silesia, Poland	21.1
100	Kalyān Maharashtra, India	21.0
101	Panvel Maharashtra, India	20.9
101	Kota Rajasthan, India	20.9
101	Hyderabad Telangana, India	20.9
104	Nagpur Maharashtra, India	20.7
105	Kłodzko Lower Silesia, Poland	20.2
106	Sīkar Rajasthan, India	20.1
106	Chānda Maharashtra, India	20.1
106	Bhilwara Rajasthan, India	20.1
106	Agartala Tripura, India	20.1
110	Durgapur West Bengal, India	20.0
110	Porto low-cost sensors Porto, Portugal	20.0
112	Jalgaon Maharashtra, India	19.9
112	Fengshan Takao, Taiwan	19.9
112	Užice Central Serbia, Serbia	19.9
115	Yuanlin Taiwan, Taiwan	19.7
116	Shivamogga Karnataka, India	19.3
117	Cholula Puebla, Mexico	19.2
118	Ahmedabad Gujarat, India	18.7
119	Jhālāwār Rajasthan, India	18.6
119	Kolkata West Bengal, India	18.6
119	Ashaiman low-cost sensors Greater Accra, Ghana	18.6
122	Beitbridge low-cost sensors Matabeleland South Province, Zimbabwe	18.5
123	Otwock Mazovia, Poland	18.4
123	Barbil Odisha, India	18.4
125	Bhiwandi Maharashtra, India	18.3
125	Angul Odisha, India	18.3
127	Gudalur Tamil Nadu, India	18.2
127	Pljevlja Pljevlja, Montenegro	18.2
129	Poznań Greater Poland, Poland	18.1
130	Rishīkesh Uttarakhand, India	18.0
130	Gaya Bihar, India	18.0
130	Bārān Rajasthan, India	18.0
130	Mankato Minnesota, United States	18.0
134	Bielsko-Biala Silesia, Poland	17.9
134	Royal Oak low-cost sensors Michigan, United States	17.9
136	Mahād Maharashtra, India	17.8
136	Hubballi Karnataka, India	17.8
136	Ciudad Benito Juárez Nuevo León, Mexico	17.8
136	Byasanagar Odisha, India	17.8
140	Niš Central Serbia, Serbia	17.7
140	Erlun Taiwan, Taiwan	17.7
140	Wrocław Lower Silesia, Poland	17.7
143	Virār Maharashtra, India	17.6
143	Perundurai Tamil Nadu, India	17.6
143	Kalaburagi Karnataka, India	17.6
143	Sherwood Park Alberta, Canada	17.6
147	Radomsko Łódź Voivodeship, Poland	17.5
148	Smederevo Central Serbia, Serbia	17.4
148	Douliu Taiwan, Taiwan	17.4
148	Winterthur low-cost sensors Zurich, Switzerland	17.4
151	García Nuevo León, Mexico	17.3
152	Żyrardów Mazovia, Poland	17.2
152	Chūru Rajasthan, India	17.2
152	Akola Maharashtra, India	17.2
155	Pune Maharashtra, India	17.0
156	Parbhani Maharashtra, India	16.7
156	Wan Chai Wan Chai, Hong Kong	16.7
156	Tema low-cost sensors Greater Accra, Ghana	16.7
156	Říčany low-cost sensors Central Bohemia, Czechia	16.7
156	Mexico City Mexico City, Mexico	16.7
161	Beigang Taiwan, Taiwan	16.6
162	Sirohi Rajasthan, India	16.5
162	Amravati Maharashtra, India	16.5
164	Belgrade Central Serbia, Serbia	16.4
165	Haldia West Bengal, India	16.3
165	Nantou Taiwan, Taiwan	16.3
165	Taguig low-cost sensors National Capital Region, Philippines	16.3
165	Santa Catarina Nuevo León, Mexico	16.3
169	Radom Mazovia, Poland	16.2
169	Nashik Maharashtra, India	16.2
169	Kolhāpur Maharashtra, India	16.2
172	Požarevac Central Serbia, Serbia	16.0
172	Bhiwāni Haryana, India	16.0
172	Houston Texas, United States	16.0
172	Hacienda Santa Fe Jalisco, Mexico	16.0
172	Nandri Rajasthan, India	16.0
177	Yerevan low-cost sensors Yerevan, Armenia	15.9
177	Pratāpgarh Rajasthan, India	15.9
177	Erlin Taiwan, Taiwan	15.9
177	Banja Luka Srpska, Bosnia and Herzegovina	15.9
177	Wheaton low-cost sensors Illinois, United States	15.9
182	Mumbai Maharashtra, India	15.8
182	Chaozhou Taiwan, Taiwan	15.8
182	Toruń Kujawsko-Pomorskie, Poland	15.8
185	Kanpur Uttar Pradesh, India	15.7
185	Kathmandu low-cost sensors Bagmati Province, Nepal	15.7
185	Taichung Taiwan, Taiwan	15.7
188	Vientiane low-cost sensors Vientiane Prefecture, Laos	15.6
188	Yongkang Taiwan, Taiwan	15.6
188	Haarlem low-cost sensors North Holland, The Netherlands	15.6
188	St. Albert Alberta, Canada	15.6
192	Jalor Rajasthan, India	15.5
192	Prayagraj Uttar Pradesh, India	15.5
192	Buzi Taiwan, Taiwan	15.5
192	Zhushan Taiwan, Taiwan	15.5
192	Fort Dodge Iowa, United States	15.5
192	Sai Mai low-cost sensors Bangkok, Thailand	15.5
198	Włocławek Kujawsko-Pomorskie, Poland	15.4
198	Baytown Texas, United States	15.4
200	Nisko Subcarpathia, Poland	15.3

Top 200 of 2,071 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