SmogRank / History / March 2025

Most polluted cities, March 2025

2,100 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	Dera Māndi Delhi, India	115.4
2	Hājīpur Bihar, India	105.2
3	Cuddalore Tamil Nadu, India	99.7
4	Angul Odisha, India	90.9
5	Narela Delhi, India	87.2
6	Guwahati Assam, India	85.6
7	Ghāziābād Uttar Pradesh, India	84.2
8	Rourkela Odisha, India	79.1
9	Sasarām Bihar, India	76.2
10	Gurugram Haryana, India	69.0
11	Durgapur West Bengal, India	68.3
12	Delhi Delhi, India	66.9
13	Singrauli Madhya Pradesh, India	66.3
14	Lucknow Uttar Pradesh, India	65.7
15	Barbil Odisha, India	65.6
15	Bhiwadi Rajasthan, India	65.6
17	Rānīganj West Bengal, India	64.9
18	Jalgaon Maharashtra, India	64.6
19	Sri Ganganagar Rajasthan, India	64.2
20	Najafgarh Delhi, India	63.9
21	Chiang Mai low-cost sensors Chiang Mai, Thailand	62.0
21	Tumkūr Karnataka, India	62.0
23	Ahmedabad Gujarat, India	61.3
24	Patna Bihar, India	59.8
24	Nagpur Maharashtra, India	59.8
26	Āsansol West Bengal, India	59.5
27	Begusarai Bihar, India	59.1
28	Gwalior Madhya Pradesh, India	58.4
29	Rairangpur Odisha, India	58.2
30	Gandhinagar Gujarat, India	57.7
31	Muzaffarnagar Uttar Pradesh, India	57.4
32	Hanumāngarh Rajasthan, India	56.6
33	Bhelai Chhattisgarh, India	56.3
34	Joda Odisha, India	56.1
35	Sholapur Maharashtra, India	55.9
35	Ankleshwar Gujarat, India	55.9
37	Dādri Uttar Pradesh, India	55.8
38	Kharghar Maharashtra, India	55.2
39	Hāpur Uttar Pradesh, India	54.6
40	Mahād Maharashtra, India	53.8
40	Latur Maharashtra, India	53.8
40	Badlapur Maharashtra, India	53.8
43	Chānda Maharashtra, India	53.5
43	Kolkata West Bengal, India	53.5
45	Nanded Maharashtra, India	53.3
46	Nashik Maharashtra, India	52.3
46	Baripāda Odisha, India	52.3
48	Kalyān Maharashtra, India	51.9
49	Shrīrāmpur West Bengal, India	50.5
49	Parbhani Maharashtra, India	50.5
51	Byasanagar Odisha, India	50.4
52	Serilingampalle Telangana, India	50.1
53	Thāne Maharashtra, India	49.7
54	Jalandhar Punjab, India	49.5
55	Pimpri-Chinchwad Maharashtra, India	49.1
56	Nagaon Assam, India	48.7
56	Bhiwandi Maharashtra, India	48.7
58	Akola Maharashtra, India	48.6
59	Aurangabad Maharashtra, India	47.1
60	Shillong Meghalaya, India	46.7
60	Bhāgalpur Bihar, India	46.7
60	Bettiah Bihar, India	46.7
63	Gummidipundi Tamil Nadu, India	46.3
64	Saharsa Bihar, India	46.1
65	Bhilai Chhattisgarh, India	46.0
65	Ajmer Rajasthan, India	46.0
67	Kanpur Uttar Pradesh, India	45.9
68	Baddi Himachal Pradesh, India	45.8
69	Boisar Maharashtra, India	45.5
70	Sāngli Maharashtra, India	45.4
71	Pune Maharashtra, India	44.1
71	Chandigarh Chandigarh, India	44.1
73	Buxar Bihar, India	43.9
74	Novi Pazar Central Serbia, Serbia	43.6
75	Noida Uttar Pradesh, India	43.4
76	Sai Mai low-cost sensors Bangkok, Thailand	41.9
77	Chittorgarh Rajasthan, India	41.4
78	Amravati Maharashtra, India	41.3
79	Patiāla Punjab, India	41.1
80	Dushanbe Dushanbe, Tajikistan	40.8
80	Cuttack Odisha, India	40.8
82	Kota Rajasthan, India	40.7
82	Gaya Bihar, India	40.7
84	Dhaulpur Rajasthan, India	40.6
85	Mumbai Maharashtra, India	40.5
86	Keonjhargarh Odisha, India	40.4
86	Bharatpur Rajasthan, India	40.4
86	Arāria Bihar, India	40.4
89	Stodůlky low-cost sensors Prague, Czechia	40.3
90	Closepet Karnataka, India	40.0
91	Dhule Maharashtra, India	39.8
91	Kłodzko Lower Silesia, Poland	39.8
93	Bhubaneswar Odisha, India	39.5
94	Bang Pakong low-cost sensors Chachoengsao, Thailand	39.3
95	Bhilwara Rajasthan, India	39.2
96	Mangaluru Karnataka, India	38.9
97	Coimbatore Tamil Nadu, India	38.7
98	Valjevo Central Serbia, Serbia	38.5
99	Otwock Mazovia, Poland	38.0
100	Virār Maharashtra, India	37.8
101	Wadgaon Kolhati Maharashtra, India	37.7
102	Kikinda Vojvodina, Serbia	37.6
103	Jaipur Rajasthan, India	37.5
103	Faridabad Haryana, India	37.5
105	Vijayawada Andhra Pradesh, India	37.3
105	Dūngarpur Rajasthan, India	37.3
107	Jodhpur Rajasthan, India	37.2
108	Ropar Punjab, India	37.1
108	Mohali Punjab, India	37.1
110	Jhālāwār Rajasthan, India	37.0
111	Dubai low-cost sensors Dubai, United Arab Emirates	36.9
112	Debrecen low-cost sensors Hajdú-Bihar, Hungary	36.6
112	Jhunjhunūn Rajasthan, India	36.6
112	Bangkok low-cost sensors Bangkok, Thailand	36.6
115	Yadgir Karnataka, India	35.8
115	Tirumala Andhra Pradesh, India	35.8
117	Łask Łódź Voivodeship, Poland	35.7
117	Kalisz Greater Poland, Poland	35.7
119	San Salvador Tizatlalli México, Mexico	35.6
120	Poznań Greater Poland, Poland	35.5
121	Kadapa Andhra Pradesh, India	35.4
122	Obrenovac Central Serbia, Serbia	35.2
123	Sawai Madhopur Rajasthan, India	35.1
124	Włocławek Kujawsko-Pomorskie, Poland	35.0
125	Bānswāra Rajasthan, India	34.9
126	Bengaluru Karnataka, India	34.8
126	Užice Central Serbia, Serbia	34.8
128	Hyderabad Telangana, India	34.6
129	Agra Uttar Pradesh, India	34.5
130	Kolhāpur Maharashtra, India	34.2
131	Dausa Rajasthan, India	34.1
131	Anantapur Andhra Pradesh, India	34.1
133	Sunland Park New Mexico, United States	33.6
134	Durg Chhattisgarh, India	33.5
135	Gangtok Sikkim, India	33.4
136	Dej Cluj County, Romania	33.1
137	Augustów Podlasie, Poland	32.6
138	Niš Central Serbia, Serbia	32.2
139	Indore Madhya Pradesh, India	32.1
139	El Paso Texas, United States	32.1
141	Tirupparangunram Tamil Nadu, India	32.0
142	Prayagraj Uttar Pradesh, India	31.9
143	Būndi Rajasthan, India	31.7
143	Żywiec Silesia, Poland	31.7
145	Sīkar Rajasthan, India	31.6
145	Quthbullapur Telangana, India	31.6
147	Istanbul low-cost sensors Istanbul, Turkey	31.4
148	Chūru Rajasthan, India	31.1
149	Tonk Rajasthan, India	31.0
150	Pratāpgarh Rajasthan, India	30.6
150	Ciudad Juárez Chihuahua, Mexico	30.6
152	Nāgaur Rajasthan, India	30.5
153	Czechowice-Dziedzice Silesia, Poland	30.1
153	Greater Noida Uttar Pradesh, India	30.1
155	Rasapūdipalem Andhra Pradesh, India	29.9
155	Morādābād Uttar Pradesh, India	29.9
157	Toruń Kujawsko-Pomorskie, Poland	29.6
158	San Luis de la Paz Guanajuato, Mexico	29.4
159	Ciudad Nezahualcoyotl México, Mexico	29.3
160	Bikaner Rajasthan, India	29.1
160	Bielsko-Biala Silesia, Poland	29.1
162	Lublin Lublin, Poland	29.0
162	Haldia West Bengal, India	29.0
164	Vereeniging low-cost sensors Gauteng, South Africa	28.9
165	Raipur Chhattisgarh, India	28.8
166	Łódź Łódź Voivodeship, Poland	28.6
167	Radom Mazovia, Poland	28.5
168	Wrocław Lower Silesia, Poland	28.3
169	Yerevan low-cost sensors Yerevan, Armenia	28.1
170	Jalor Rajasthan, India	28.0
170	Gorzów Wielkopolski Lubusz, Poland	28.0
172	Żyrardów Mazovia, Poland	27.8
172	Rishīkesh Uttarakhand, India	27.8
174	Smederevo Central Serbia, Serbia	27.6
174	Jastrzębie Zdrój Silesia, Poland	27.6
176	Bydgoszcz Kujawsko-Pomorskie, Poland	27.3
177	Dębica Subcarpathia, Poland	27.1
177	Rājsamand Rajasthan, India	27.1
179	Neelankarai Tamil Nadu, India	26.9
180	Legionowo Mazovia, Poland	26.7
180	Karauli Rajasthan, India	26.7
180	Jelenia Góra Lower Silesia, Poland	26.7
183	Saugor Madhya Pradesh, India	26.6
183	Zagreb low-cost sensors Zagreb, Croatia	26.6
185	Arrah Bihar, India	26.3
186	Zamość Lublin, Poland	26.1
187	Jaisalmer Rajasthan, India	26.0
188	Pruszków Mazovia, Poland	25.9
188	Kalaburagi Karnataka, India	25.9
188	Kraków Lesser Poland, Poland	25.9
191	Warsaw Mazovia, Poland	25.8
191	Belgrade Central Serbia, Serbia	25.8
191	Birmingham low-cost sensors England, United Kingdom	25.8
194	Rzeszów Subcarpathia, Poland	25.6
195	Radomsko Łódź Voivodeship, Poland	25.5
195	Irapuato Guanajuato, Mexico	25.5
197	Opole Opole Voivodeship, Poland	25.4
198	Szczecin West Pomerania, Poland	25.1
199	Miskolc Borsod-Abaúj-Zemplén, Hungary	25.0
199	Ciechanów Mazovia, Poland	25.0

Top 200 of 2,100 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