SmogRank / History / April 2025

Most polluted cities, April 2025

2,133 cities ranked by their average PM2.5 over the 30 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³
1	Santa Anita Jalisco, Mexico	147.2
2	Narela Delhi, India	103.1
3	Dādri Uttar Pradesh, India	98.8
4	Meerut Uttar Pradesh, India	87.7
5	Singrauli Madhya Pradesh, India	83.6
6	Ghāziābād Uttar Pradesh, India	79.8
7	Sasarām Bihar, India	78.0
8	Gandhinagar Gujarat, India	74.0
9	Delhi Delhi, India	72.8
10	Bhiwadi Rajasthan, India	72.0
11	Rourkela Odisha, India	70.9
12	Lucknow Uttar Pradesh, India	70.7
13	Gwalior Madhya Pradesh, India	69.1
14	Najafgarh Delhi, India	68.4
15	Sri Ganganagar Rajasthan, India	64.3
16	Muzaffarnagar Uttar Pradesh, India	63.6
17	Nagpur Maharashtra, India	56.0
18	Bhelai Chhattisgarh, India	55.7
19	Patna Bihar, India	55.4
20	Ahmedabad Gujarat, India	55.3
21	Jaipur Rajasthan, India	54.7
22	Noida Uttar Pradesh, India	52.2
23	Sawai Madhopur Rajasthan, India	52.0
24	Patiāla Punjab, India	51.8
25	Ajmer Rajasthan, India	50.9
26	Jalandhar Punjab, India	50.2
27	Latur Maharashtra, India	48.6
28	Jalgaon Maharashtra, India	47.8
29	Chittorgarh Rajasthan, India	47.5
30	Dausa Rajasthan, India	46.7
31	Angul Odisha, India	46.2
32	Chandigarh Chandigarh, India	45.7
33	Guwahati Assam, India	45.3
34	Vientiane low-cost sensors Vientiane Prefecture, Laos	45.0
35	Badlapur Maharashtra, India	44.7
36	Nashik Maharashtra, India	44.5
37	Mohali Punjab, India	44.0
38	Sholapur Maharashtra, India	43.7
39	Kota Rajasthan, India	43.6
40	Kalyān Maharashtra, India	43.4
41	Chūru Rajasthan, India	43.3
42	Akola Maharashtra, India	42.8
43	Jhālāwār Rajasthan, India	42.4
44	Ankleshwar Gujarat, India	41.4
45	Mahād Maharashtra, India	41.3
45	Bārān Rajasthan, India	41.3
47	Chānda Maharashtra, India	41.2
47	Agra Uttar Pradesh, India	41.2
49	Kanpur Uttar Pradesh, India	40.9
49	Gaya Bihar, India	40.9
51	Bhiwandi Maharashtra, India	40.6
51	Serilingampalle Telangana, India	40.6
51	Kharghar Maharashtra, India	40.6
54	Vijayawada Andhra Pradesh, India	40.5
55	Jhunjhunūn Rajasthan, India	40.3
56	Bānswāra Rajasthan, India	40.2
57	Baddi Himachal Pradesh, India	39.6
58	Hāpur Uttar Pradesh, India	38.8
59	Anantapur Andhra Pradesh, India	38.4
60	Rānīganj West Bengal, India	38.3
61	Aurangabad Maharashtra, India	38.1
62	Thāne Maharashtra, India	37.8
63	Āsansol West Bengal, India	37.7
64	Amravati Maharashtra, India	37.6
65	Vapi Gujarat, India	37.4
66	Rishīkesh Uttarakhand, India	37.3
66	Pune Maharashtra, India	37.3
68	Victoria de Durango Durango, Mexico	37.1
69	Bhilwara Rajasthan, India	37.0
70	Jodhpur Rajasthan, India	36.9
71	Buxar Bihar, India	36.7
72	Sīkar Rajasthan, India	36.6
73	Bharatpur Rajasthan, India	36.5
74	Kolkata West Bengal, India	36.4
75	Panvel Maharashtra, India	35.9
76	Dubai low-cost sensors Dubai, United Arab Emirates	35.8
76	Tonk Rajasthan, India	35.8
76	Pimpri-Chinchwad Maharashtra, India	35.8
79	Indore Madhya Pradesh, India	35.7
79	Wadgaon Kolhati Maharashtra, India	35.7
81	Saugor Madhya Pradesh, India	35.6
81	Keonjhargarh Odisha, India	35.6
83	Dushanbe Dushanbe, Tajikistan	35.5
84	Chiang Mai low-cost sensors Chiang Mai, Thailand	35.4
85	Cholula Puebla, Mexico	35.1
86	Tlaquepaque Jalisco, Mexico	34.8
87	Tirumala Andhra Pradesh, India	34.7
88	Bettiah Bihar, India	34.1
89	Nāgaur Rajasthan, India	33.8
90	Baripāda Odisha, India	33.5
91	Logroño La Rioja, Spain	32.5
92	Hyderabad Telangana, India	32.3
92	Puebla Puebla, Mexico	32.3
94	Gummidipundi Tamil Nadu, India	32.2
95	Pratāpgarh Rajasthan, India	31.7
96	Coimbatore Tamil Nadu, India	30.8
97	Greater Noida Uttar Pradesh, India	30.5
98	Kolhāpur Maharashtra, India	30.3
99	Hacienda Santa Fe Jalisco, Mexico	30.2
100	Ciudad Nezahualcoyotl México, Mexico	30.0
101	Yadgir Karnataka, India	29.9
102	Jalor Rajasthan, India	29.8
102	Ciudad Juárez Chihuahua, Mexico	29.8
104	Byasanagar Odisha, India	29.7
105	Shrīrāmpur West Bengal, India	29.4
105	Nanded Maharashtra, India	29.4
105	Dhaulpur Rajasthan, India	29.4
108	Wan Chai Wan Chai, Hong Kong	29.3
109	Istanbul low-cost sensors Istanbul, Turkey	29.0
109	Morādābād Uttar Pradesh, India	29.0
111	Jaisalmer Rajasthan, India	28.9
112	Cuttack Odisha, India	28.7
113	Dūngarpur Rajasthan, India	28.3
113	Sunland Park New Mexico, United States	28.3
113	El Paso Texas, United States	28.3
116	Cuernavaca Morelos, Mexico	28.0
117	Bengaluru Karnataka, India	27.8
118	Tehuacán Puebla, Mexico	27.4
119	Neelankarai Tamil Nadu, India	27.2
120	Novi Pazar Central Serbia, Serbia	27.0
120	Parbhani Maharashtra, India	27.0
122	Jabalpur Madhya Pradesh, India	26.7
123	Jincheng Fukien, Taiwan	26.6
124	Karauli Rajasthan, India	26.4
124	Durg Chhattisgarh, India	26.4
124	Sai Mai low-cost sensors Bangkok, Thailand	26.4
127	San Luis de la Paz Guanajuato, Mexico	26.1
128	Virār Maharashtra, India	25.9
129	Bārmer Rajasthan, India	25.7
130	Mixquiahuala de Juárez Hidalgo, Mexico	25.6
131	Mumbai Maharashtra, India	25.5
132	Zacatepec de Hidalgo Morelos, Mexico	25.1
133	Durgapur West Bengal, India	25.0
133	Tuen Mun Tuen Mun, Hong Kong	25.0
135	Santa Catarina Nuevo León, Mexico	24.8
136	Raipur Chhattisgarh, India	24.7
137	Bhubaneswar Odisha, India	24.6
138	Cuautla Morelos, Mexico	24.3
138	Mexico City Mexico City, Mexico	24.3
140	Vereeniging low-cost sensors Gauteng, South Africa	24.1
141	Rājsamand Rajasthan, India	24.0
142	Socorro Texas, United States	23.9
143	Mong Kok Yau Tsim Mong District, Hong Kong	23.8
144	Nandri Rajasthan, India	23.7
145	Irapuato Guanajuato, Mexico	23.6
146	Erlun Taiwan, Taiwan	23.2
147	Aguascalientes Aguascalientes, Mexico	23.1
148	Guadalajara Jalisco, Mexico	22.9
149	Fanling North District, Hong Kong	22.2
150	Bangkok low-cost sensors Bangkok, Thailand	22.0
151	Tulancingo Hidalgo, Mexico	21.9
152	Bang Pakong low-cost sensors Chachoengsao, Thailand	21.7
152	Monterrey Nuevo León, Mexico	21.7
154	San Tung Chung Hang Islands, Hong Kong	21.6
155	Douliu Taiwan, Taiwan	21.5
155	Yuanlin Taiwan, Taiwan	21.5
157	Hubballi Karnataka, India	21.3
158	Taibao Taiwan, Taiwan	21.2
159	Buzi Taiwan, Taiwan	21.0
159	Erlin Taiwan, Taiwan	21.0
161	Chennai Tamil Nadu, India	20.8
161	Taoyuan Taiwan, Taiwan	20.8
163	Niš Central Serbia, Serbia	20.7
163	Tai Po Tai Po, Hong Kong	20.7
165	Tin Shui Wai Yuen Long, Hong Kong	20.6
166	Ciudad Benito Juárez Nuevo León, Mexico	20.5
167	Yongkang Taiwan, Taiwan	20.3
167	Taichung Taiwan, Taiwan	20.3
167	Hsinchu Taiwan, Taiwan	20.3
167	Tsuen Wan Tsuen Wan, Hong Kong	20.3
167	Kwai Chung Kwai Tsing District, Hong Kong	20.3
172	Neili Taiwan, Taiwan	20.2
172	Fengshan Takao, Taiwan	20.2
174	Nantou Taiwan, Taiwan	20.1
175	Xinying Taiwan, Taiwan	20.0
175	Beigang Taiwan, Taiwan	20.0
177	Changhua Taiwan, Taiwan	19.9
178	Obrenovac Central Serbia, Serbia	19.8
178	Shivamogga Karnataka, India	19.8
178	Tainan Taiwan, Taiwan	19.8
178	Zhushan Taiwan, Taiwan	19.8
178	Victoria Central and Western, Hong Kong	19.8
178	Tepic Nayarit, Mexico	19.8
184	Xizhou Taiwan, Taiwan	19.7
184	Zhubei Taiwan, Taiwan	19.7
186	Addis Ababa Addis Ababa, Ethiopia	19.6
186	Taipei Taiwan, Taiwan	19.6
188	Silao de la Victoria Guanajuato, Mexico	19.5
189	Chaozhou Taiwan, Taiwan	19.3
189	Sham Shui Po Sham Shui Po District, Hong Kong	19.3
191	Toufen Taiwan, Taiwan	19.2
191	San Juan del Río Querétaro, Mexico	19.2
191	León de los Aldama Guanajuato, Mexico	19.2
194	Kaohsiung Takao, Taiwan	19.1
194	Chiayi City Taiwan, Taiwan	19.1
196	New Taipei City Taipei, Taiwan	19.0
197	Zapopan Jalisco, Mexico	18.9
198	Kalaburagi Karnataka, India	18.8
198	Sau Mau Ping Kwun Tong District, Hong Kong	18.8
198	Celaya Guanajuato, Mexico	18.8

Top 200 of 2,133 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