SmogRank / History / 2025

Most polluted cities, 2025

2,077 cities ranked by their average PM2.5 over the 365 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³	× WHO
1	Narela Delhi, India	102.8	20.6×
2	Delhi Delhi, India	94.1	18.8×
3	Ghāziābād Uttar Pradesh, India	87.9	17.6×
4	Dādri Uttar Pradesh, India	87.7	17.5×
5	Noida Uttar Pradesh, India	87.1	17.4×
6	Najafgarh Delhi, India	74.2	14.8×
6	Bhiwadi Rajasthan, India	74.2	14.8×
8	Muzaffarnagar Uttar Pradesh, India	70.8	14.2×
9	Greater Noida Uttar Pradesh, India	69.3	13.9×
10	Hāpur Uttar Pradesh, India	68.4	13.7×
11	Gummidipundi Tamil Nadu, India	68.3	13.7×
12	Dushanbe Dushanbe, Tajikistan	66.6	13.3×
13	Hājīpur Bihar, India	65.8	13.2×
14	Lucknow Uttar Pradesh, India	57.6	11.5×
15	Baddi Himachal Pradesh, India	56.5	11.3×
16	Rourkela Odisha, India	56.4	11.3×
17	Sri Ganganagar Rajasthan, India	56.2	11.2×
18	Angul Odisha, India	55.3	11.1×
19	Gwalior Madhya Pradesh, India	55.0	11.0×
20	Stodůlky low-cost sensors Prague, Czechia	53.3	10.7×
21	Tonk Rajasthan, India	51.6	10.3×
22	Jaipur Rajasthan, India	48.6	9.7×
22	Dhaulpur Rajasthan, India	48.6	9.7×
24	Rasapūdipalem Andhra Pradesh, India	48.4	9.7×
24	Kolkata West Bengal, India	48.4	9.7×
26	Hanumāngarh Rajasthan, India	47.8	9.6×
27	Jalandhar Punjab, India	46.7	9.3×
28	Rānīganj West Bengal, India	46.4	9.3×
29	Chandigarh Chandigarh, India	45.8	9.2×
30	Patna Bihar, India	45.6	9.1×
30	Ahmedabad Gujarat, India	45.6	9.1×
32	Sīkar Rajasthan, India	45.3	9.1×
32	Barbil Odisha, India	45.3	9.1×
34	Cuttack Odisha, India	44.7	8.9×
35	Kota Rajasthan, India	43.5	8.7×
36	Kanpur Uttar Pradesh, India	43.3	8.7×
36	Joda Odisha, India	43.3	8.7×
38	Nagpur Maharashtra, India	43.0	8.6×
39	Jalgaon Maharashtra, India	42.9	8.6×
40	Neelankarai Tamil Nadu, India	42.6	8.5×
41	Kalyān Maharashtra, India	42.5	8.5×
42	Chūru Rajasthan, India	42.4	8.5×
43	Ajmer Rajasthan, India	42.2	8.4×
44	Bhilwara Rajasthan, India	41.4	8.3×
45	Karauli Rajasthan, India	41.2	8.2×
46	Saugor Madhya Pradesh, India	41.0	8.2×
46	Ankleshwar Gujarat, India	41.0	8.2×
48	Bhiwandi Maharashtra, India	40.9	8.2×
49	Gandhinagar Gujarat, India	40.8	8.2×
49	Chittorgarh Rajasthan, India	40.8	8.2×
51	Byasanagar Odisha, India	40.6	8.1×
52	Bikaner Rajasthan, India	40.5	8.1×
53	Bhubaneswar Odisha, India	40.4	8.1×
54	Patiāla Punjab, India	40.2	8.0×
55	Badlapur Maharashtra, India	40.1	8.0×
56	Bhelai Chhattisgarh, India	39.8	8.0×
56	Āsansol West Bengal, India	39.8	8.0×
58	Anantapur Andhra Pradesh, India	39.7	7.9×
58	Kharghar Maharashtra, India	39.7	7.9×
60	Baripāda Odisha, India	39.6	7.9×
61	Shrīrāmpur West Bengal, India	39.1	7.8×
62	Nāgaur Rajasthan, India	39.0	7.8×
62	Jhunjhunūn Rajasthan, India	39.0	7.8×
64	Dubai low-cost sensors Dubai, United Arab Emirates	38.8	7.8×
64	Dausa Rajasthan, India	38.8	7.8×
66	Mumbai Maharashtra, India	38.6	7.7×
67	Panvel Maharashtra, India	38.3	7.7×
68	Bānswāra Rajasthan, India	38.1	7.6×
69	Morādābād Uttar Pradesh, India	37.9	7.6×
69	Serilingampalle Telangana, India	37.9	7.6×
71	Jhālāwār Rajasthan, India	37.7	7.5×
72	Gaya Bihar, India	37.4	7.5×
73	Durgapur West Bengal, India	37.3	7.5×
74	Būndi Rajasthan, India	37.2	7.4×
74	Pimpri-Chinchwad Maharashtra, India	37.2	7.4×
76	Pune Maharashtra, India	36.9	7.4×
77	Haldia West Bengal, India	36.8	7.4×
78	Vijayawada Andhra Pradesh, India	36.6	7.3×
79	Dūngarpur Rajasthan, India	36.5	7.3×
80	Nanded Maharashtra, India	36.4	7.3×
81	Nashik Maharashtra, India	36.2	7.2×
82	Bharatpur Rajasthan, India	36.1	7.2×
83	Sawai Madhopur Rajasthan, India	35.7	7.1×
83	Prayagraj Uttar Pradesh, India	35.7	7.1×
83	Agra Uttar Pradesh, India	35.7	7.1×
86	Bhopal Madhya Pradesh, India	35.6	7.1×
87	Hyderabad Telangana, India	35.4	7.1×
88	Mahād Maharashtra, India	35.3	7.1×
89	Jalor Rajasthan, India	35.0	7.0×
90	Aurangabad Maharashtra, India	34.3	6.9×
91	Vereeniging low-cost sensors Gauteng, South Africa	34.2	6.8×
92	Tirumala Andhra Pradesh, India	33.5	6.7×
93	Jodhpur Rajasthan, India	33.4	6.7×
94	Banja Luka Srpska, Bosnia and Herzegovina	33.3	6.7×
95	Akola Maharashtra, India	33.1	6.6×
96	Thāne Maharashtra, India	33.0	6.6×
96	Latur Maharashtra, India	33.0	6.6×
98	Chānda Maharashtra, India	32.6	6.5×
98	Boisar Maharashtra, India	32.6	6.5×
100	Jaisalmer Rajasthan, India	32.4	6.5×
101	Sholapur Maharashtra, India	32.2	6.4×
101	Amravati Maharashtra, India	32.2	6.4×
103	Sarajevo Federation of B&H, Bosnia and Herzegovina	31.9	6.4×
104	Coimbatore Tamil Nadu, India	31.5	6.3×
105	Bārān Rajasthan, India	31.4	6.3×
106	Yerevan low-cost sensors Yerevan, Armenia	31.2	6.2×
106	Rājsamand Rajasthan, India	31.2	6.2×
106	Chennai Tamil Nadu, India	31.2	6.2×
109	Virār Maharashtra, India	31.0	6.2×
110	Pratāpgarh Rajasthan, India	30.9	6.2×
111	Bengaluru Karnataka, India	30.7	6.1×
112	Istanbul low-cost sensors Istanbul, Turkey	30.3	6.1×
112	Kolhāpur Maharashtra, India	30.3	6.1×
114	Amaravati Andhra Pradesh, India	29.5	5.9×
115	Keonjhargarh Odisha, India	29.3	5.9×
116	Nandri Rajasthan, India	29.1	5.8×
117	Jabalpur Madhya Pradesh, India	28.9	5.8×
118	Bhayandar Maharashtra, India	28.4	5.7×
119	Vientiane low-cost sensors Vientiane Prefecture, Laos	27.7	5.5×
120	Guwahati Assam, India	27.5	5.5×
121	Bārmer Rajasthan, India	27.3	5.5×
122	Tlaquepaque Jalisco, Mexico	27.0	5.4×
122	Calexico California, United States	27.0	5.4×
124	Żywiec Silesia, Poland	26.8	5.4×
125	Indore Madhya Pradesh, India	26.6	5.3×
126	Sirohi Rajasthan, India	26.0	5.2×
127	Wan Chai Wan Chai, Hong Kong	23.3	4.7×
128	Chiang Mai low-cost sensors Chiang Mai, Thailand	22.9	4.6×
129	Zagreb low-cost sensors Zagreb, Croatia	22.5	4.5×
130	Debrecen low-cost sensors Hajdú-Bihar, Hungary	22.4	4.5×
131	Accra low-cost sensors Greater Accra, Ghana	22.3	4.5×
131	Bielsko-Biala Silesia, Poland	22.3	4.5×
131	Puebla Puebla, Mexico	22.3	4.5×
134	Belgrade Central Serbia, Serbia	21.9	4.4×
135	Raipur Chhattisgarh, India	21.8	4.4×
136	Ciudad Benito Juárez Nuevo León, Mexico	21.7	4.3×
136	Sai Mai low-cost sensors Bangkok, Thailand	21.7	4.3×
138	Dej Cluj County, Romania	21.6	4.3×
138	Otwock Mazovia, Poland	21.6	4.3×
140	Perundurai Tamil Nadu, India	21.4	4.3×
141	Bangkok low-cost sensors Bangkok, Thailand	21.3	4.3×
141	Fengshan Takao, Taiwan	21.3	4.3×
143	Łask Łódź Voivodeship, Poland	21.2	4.2×
143	Kalisz Greater Poland, Poland	21.2	4.2×
145	Naucalpan de Juárez México, Mexico	21.1	4.2×
146	Hubballi Karnataka, India	21.0	4.2×
147	Aguascalientes Aguascalientes, Mexico	20.1	4.0×
148	Jastrzębie Zdrój Silesia, Poland	19.8	4.0×
149	Kaohsiung Takao, Taiwan	19.3	3.9×
150	Augustów Podlasie, Poland	19.2	3.8×
150	Tuen Mun Tuen Mun, Hong Kong	19.2	3.8×
152	Douliu Taiwan, Taiwan	19.1	3.8×
152	Kłodzko Lower Silesia, Poland	19.1	3.8×
152	Mexico City Mexico City, Mexico	19.1	3.8×
155	Codlea Brașov County, Romania	19.0	3.8×
156	Shivamogga Karnataka, India	18.9	3.8×
157	Włocławek Kujawsko-Pomorskie, Poland	18.8	3.8×
158	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	18.6	3.7×
158	Durg Chhattisgarh, India	18.6	3.7×
158	Erlun Taiwan, Taiwan	18.6	3.7×
158	Iloilo low-cost sensors Western Visayas, Philippines	18.6	3.7×
158	Poznań Greater Poland, Poland	18.6	3.7×
158	Ourense Galicia, Spain	18.6	3.7×
164	Kalaburagi Karnataka, India	18.5	3.7×
165	Madikeri Karnataka, India	18.4	3.7×
165	Radomsko Łódź Voivodeship, Poland	18.4	3.7×
167	Chaozhou Taiwan, Taiwan	18.3	3.7×
167	Czechowice-Dziedzice Silesia, Poland	18.3	3.7×
169	Khlong Luang low-cost sensors Pathum Thani, Thailand	18.2	3.6×
169	Łódź Łódź Voivodeship, Poland	18.2	3.6×
171	Agartala Tripura, India	18.0	3.6×
172	Tainan Taiwan, Taiwan	17.9	3.6×
173	Yongkang Taiwan, Taiwan	17.8	3.6×
174	Wrocław Lower Silesia, Poland	17.7	3.5×
174	León de los Aldama Guanajuato, Mexico	17.7	3.5×
174	Irapuato Guanajuato, Mexico	17.7	3.5×
177	Bang Pakong low-cost sensors Chachoengsao, Thailand	17.6	3.5×
178	Kraków Lesser Poland, Poland	17.5	3.5×
179	Mixquiahuala de Juárez Hidalgo, Mexico	17.4	3.5×
179	Ciudad Juárez Chihuahua, Mexico	17.4	3.5×
181	Nisko Subcarpathia, Poland	17.3	3.5×
181	Yuanlin Taiwan, Taiwan	17.3	3.5×
183	Radom Mazovia, Poland	17.2	3.4×
183	Lublin Lublin, Poland	17.2	3.4×
185	Xinying Taiwan, Taiwan	17.1	3.4×
185	Monterrey Nuevo León, Mexico	17.1	3.4×
187	Toruń Kujawsko-Pomorskie, Poland	17.0	3.4×
188	Beigang Taiwan, Taiwan	16.9	3.4×
189	Zhushan Taiwan, Taiwan	16.8	3.4×
190	San Tung Chung Hang Islands, Hong Kong	16.7	3.3×
191	Tin Shui Wai Yuen Long, Hong Kong	16.6	3.3×
192	Salamanca Guanajuato, Mexico	16.5	3.3×
193	Zamość Lublin, Poland	16.4	3.3×
193	Kielce Świętokrzyskie, Poland	16.4	3.3×
193	Dębica Subcarpathia, Poland	16.4	3.3×
193	Celaya Guanajuato, Mexico	16.4	3.3×
197	Pruszków Mazovia, Poland	16.3	3.3×
197	Shillong Meghalaya, India	16.3	3.3×
197	Manlleu Catalonia, Spain	16.3	3.3×
200	Nyíregyháza Szabolcs-Szatmár-Bereg, Hungary	16.2	3.2×

Top 200 of 2,077 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