SmogRank / History / September 30, 2025

Most polluted cities on September 30, 2025

2,478 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

#	City	µg/m³	× WHO
1	Saltillo Coahuila, Mexico	257.0	17.1×
2	Gummidipundi Tamil Nadu, India	137.0	9.1×
3	Gujranwala low-cost sensors Punjab, Pakistan	132.0	8.8×
4	Lahore low-cost sensors Punjab, Pakistan	130.5	8.7×
5	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	113.0	7.5×
6	Sialkot low-cost sensors Punjab, Pakistan	109.5	7.3×
7	Karauli Rajasthan, India	99.4	6.6×
8	Faisalabad low-cost sensors Punjab, Pakistan	95.9	6.4×
9	Cuddalore Tamil Nadu, India	90.1	6.0×
10	Kadapa Andhra Pradesh, India	86.3	5.8×
11	Blantyre low-cost sensors Southern Region, Malawi	77.1	5.1×
12	Multan low-cost sensors Punjab, Pakistan	71.6	4.8×
13	Bhāgalpur Bihar, India	71.0	4.7×
14	Gurugram Haryana, India	67.1	4.5×
15	Dushanbe Dushanbe, Tajikistan	62.5	4.2×
16	Muzaffarnagar Uttar Pradesh, India	57.9	3.9×
17	Narela Delhi, India	56.0	3.7×
17	Hājīpur Bihar, India	56.0	3.7×
19	Jalandhar Punjab, India	55.7	3.7×
20	Chittoor Andhra Pradesh, India	53.4	3.6×
21	Rānipet Tamil Nadu, India	52.7	3.5×
22	Bhiwadi Rajasthan, India	50.9	3.4×
23	Ghāziābād Uttar Pradesh, India	50.7	3.4×
24	Tirupati Andhra Pradesh, India	50.4	3.4×
25	Chāpra Bihar, India	49.4	3.3×
26	Rawalpindi low-cost sensors Punjab, Pakistan	48.7	3.2×
27	Bahawalpur low-cost sensors Punjab, Pakistan	47.9	3.2×
27	Dādri Uttar Pradesh, India	47.9	3.2×
29	Karachi low-cost sensors Sindh, Pakistan	47.8	3.2×
30	Islamabad low-cost sensors Islamabad, Pakistan	46.3	3.1×
31	Hanumāngarh Rajasthan, India	45.1	3.0×
32	Edmonton Alberta, Canada	44.6	3.0×
33	Bānswāra Rajasthan, India	44.1	2.9×
34	Hāpur Uttar Pradesh, India	43.1	2.9×
35	Lucknow Uttar Pradesh, India	42.9	2.9×
36	Noida Uttar Pradesh, India	42.7	2.8×
37	Rānīganj West Bengal, India	42.5	2.8×
38	Fort McMurray Alberta, Canada	42.4	2.8×
39	Delhi Delhi, India	41.4	2.8×
40	Changchun low-cost sensors Jilin, China	41.3	2.8×
41	Morādābād Uttar Pradesh, India	41.0	2.7×
42	Āsansol West Bengal, India	40.5	2.7×
42	Greater Noida Uttar Pradesh, India	40.5	2.7×
44	Dubai low-cost sensors Dubai, United Arab Emirates	40.4	2.7×
45	Aya Nagar Delhi, India	40.2	2.7×
46	Santa Anita - Los Ficus Lima region, Peru	39.0	2.6×
47	Jabalpur Madhya Pradesh, India	38.9	2.6×
48	Gūduvāncheri Tamil Nadu, India	38.2	2.5×
49	Serilingampalle Telangana, India	38.1	2.5×
50	Buxar Bihar, India	38.0	2.5×
51	Bāghpat Uttar Pradesh, India	37.5	2.5×
51	Sherwood Park Alberta, Canada	37.5	2.5×
53	Malegaon Maharashtra, India	37.1	2.5×
54	Neelankarai Tamil Nadu, India	36.3	2.4×
55	Rourkela Odisha, India	34.8	2.3×
56	Patna Bihar, India	34.6	2.3×
57	Coimbatore Tamil Nadu, India	34.4	2.3×
58	Ropar Punjab, India	34.2	2.3×
58	Sri Ganganagar Rajasthan, India	34.2	2.3×
58	St. Albert Alberta, Canada	34.2	2.3×
61	Vereeniging low-cost sensors Gauteng, South Africa	33.7	2.2×
61	Nagaon Assam, India	33.7	2.2×
63	Chennai Tamil Nadu, India	33.5	2.2×
64	Patiāla Punjab, India	33.3	2.2×
65	Quezon City low-cost sensors National Capital Region, Philippines	33.0	2.2×
65	Xonacatlán México, Mexico	33.0	2.2×
67	Arāria Bihar, India	32.7	2.2×
68	Quetta low-cost sensors Balochistan, Pakistan	32.3	2.2×
69	Jakarta Jakarta, Indonesia	32.1	2.1×
70	Rasapūdipalem Andhra Pradesh, India	31.9	2.1×
70	Nalbāri Assam, India	31.9	2.1×
72	Prokuplje Central Serbia, Serbia	31.8	2.1×
73	Chandigarh Chandigarh, India	31.6	2.1×
74	Durgapur West Bengal, India	30.9	2.1×
74	Naharlagun Arunachal Pradesh, India	30.9	2.1×
76	Lima Lima Province, Peru	30.8	2.1×
76	Quthbullapur Telangana, India	30.8	2.1×
78	Srinagar Jammu and Kashmir, India	30.7	2.0×
78	Ashaiman low-cost sensors Greater Accra, Ghana	30.7	2.0×
80	Siwān Bihar, India	30.5	2.0×
81	Gaya Bihar, India	30.3	2.0×
82	Vellore Tamil Nadu, India	30.2	2.0×
83	Düsseldorf North Rhine-Westphalia, Germany	29.9	2.0×
84	San Francisco De Borja Lima region, Peru	29.1	1.9×
85	Dortmund North Rhine-Westphalia, Germany	29.0	1.9×
86	Silchar Assam, India	28.8	1.9×
87	Tuxtla Chiapas, Mexico	28.5	1.9×
88	Salem Tamil Nadu, India	28.1	1.9×
88	Kolkata West Bengal, India	28.1	1.9×
90	Rājgīr Bihar, India	27.9	1.9×
91	Wadgaon Kolhati Maharashtra, India	27.7	1.8×
92	Bengaluru Karnataka, India	27.6	1.8×
93	Angul Odisha, India	27.3	1.8×
94	Krefeld North Rhine-Westphalia, Germany	27.1	1.8×
94	Essen North Rhine-Westphalia, Germany	27.1	1.8×
96	Haldia West Bengal, India	26.9	1.8×
96	Yellowknife low-cost sensors Northwest Territories, Canada	26.9	1.8×
98	Ajmer Rajasthan, India	26.5	1.8×
98	Mohali Punjab, India	26.5	1.8×
100	Barbil Odisha, India	26.4	1.8×
101	Jhālāwār Rajasthan, India	25.8	1.7×
102	Olpe low-cost sensors North Rhine-Westphalia, Germany	25.7	1.7×
103	Agartala Tripura, India	25.5	1.7×
103	Bottrop North Rhine-Westphalia, Germany	25.5	1.7×
105	Obrenovac Central Serbia, Serbia	25.1	1.7×
105	Tonk Rajasthan, India	25.1	1.7×
105	Baripāda Odisha, India	25.1	1.7×
108	Tema low-cost sensors Greater Accra, Ghana	25.0	1.7×
109	Callao Callao, Peru	24.6	1.6×
110	San Salvador Tizatlalli México, Mexico	24.5	1.6×
111	Hagen North Rhine-Westphalia, Germany	24.4	1.6×
112	Sirsa Haryana, India	24.3	1.6×
112	Oberhausen North Rhine-Westphalia, Germany	24.3	1.6×
114	Sāngli Maharashtra, India	24.2	1.6×
115	Leskovac Central Serbia, Serbia	24.1	1.6×
116	Faridabad Haryana, India	23.9	1.6×
116	Dausa Rajasthan, India	23.9	1.6×
118	Jaipur Rajasthan, India	23.8	1.6×
119	Köln North Rhine-Westphalia, Germany	23.7	1.6×
119	Kharghar Maharashtra, India	23.7	1.6×
121	Požarevac Central Serbia, Serbia	23.6	1.6×
122	Pulheim North Rhine-Westphalia, Germany	23.5	1.6×
122	Pavia Lombardy, Italy	23.5	1.6×
124	Bor Central Serbia, Serbia	23.4	1.6×
125	Ćuprija Central Serbia, Serbia	23.3	1.6×
125	Saugor Madhya Pradesh, India	23.3	1.6×
125	Lagos low-cost sensors Lagos, Nigeria	23.3	1.6×
125	Duisburg North Rhine-Westphalia, Germany	23.3	1.6×
129	Wake Forest low-cost sensors North Carolina, United States	23.2	1.5×
130	Pirot Central Serbia, Serbia	23.1	1.5×
131	Karur Tamil Nadu, India	22.9	1.5×
131	Agra Uttar Pradesh, India	22.9	1.5×
133	Ruse Ruse, Bulgaria	22.8	1.5×
133	Hyderabad Telangana, India	22.8	1.5×
135	Istanbul low-cost sensors Istanbul, Turkey	22.7	1.5×
135	Niš Central Serbia, Serbia	22.7	1.5×
135	Perundurai Tamil Nadu, India	22.7	1.5×
135	Madikeri Karnataka, India	22.7	1.5×
135	Naucalpan de Juárez México, Mexico	22.7	1.5×
140	Shenyang Liaoning, China	22.6	1.5×
141	Calgary Alberta, Canada	22.4	1.5×
142	Chānda Maharashtra, India	22.3	1.5×
143	Wheaton low-cost sensors Illinois, United States	22.1	1.5×
144	Mankato Minnesota, United States	21.8	1.5×
145	Ankleshwar Gujarat, India	21.7	1.4×
145	Winterthur low-cost sensors Zurich, Switzerland	21.7	1.4×
145	Hattingen North Rhine-Westphalia, Germany	21.7	1.4×
148	Shivamogga Karnataka, India	21.6	1.4×
149	Rishīkesh Uttarakhand, India	21.5	1.4×
150	Prayagraj Uttar Pradesh, India	21.1	1.4×
150	Taguig low-cost sensors National Capital Region, Philippines	21.1	1.4×
150	Leverkusen North Rhine-Westphalia, Germany	21.1	1.4×
153	Shrīrāmpur West Bengal, India	21.0	1.4×
153	Gwalior Madhya Pradesh, India	21.0	1.4×
153	Wuppertal North Rhine-Westphalia, Germany	21.0	1.4×
153	Mönchengladbach North Rhine-Westphalia, Germany	21.0	1.4×
153	Ciudad Benito Juárez Nuevo León, Mexico	21.0	1.4×
158	Jüchen North Rhine-Westphalia, Germany	20.8	1.4×
159	Kraljevo Central Serbia, Serbia	20.7	1.4×
160	Kalyān Maharashtra, India	20.6	1.4×
160	Iloilo low-cost sensors Western Visayas, Philippines	20.6	1.4×
162	Nagapattinam Tamil Nadu, India	20.5	1.4×
162	Ratingen North Rhine-Westphalia, Germany	20.5	1.4×
164	Smederevo Central Serbia, Serbia	20.4	1.4×
164	Loznica Central Serbia, Serbia	20.4	1.4×
164	Cholula Puebla, Mexico	20.4	1.4×
167	Accra low-cost sensors Greater Accra, Ghana	20.3	1.4×
167	Datteln North Rhine-Westphalia, Germany	20.3	1.4×
169	Kragujevac Central Serbia, Serbia	20.2	1.3×
169	Badlapur Maharashtra, India	20.2	1.3×
171	Thānesar Haryana, India	20.0	1.3×
171	Raipur Chhattisgarh, India	20.0	1.3×
171	Nagpur Maharashtra, India	20.0	1.3×
174	Cuttack Odisha, India	19.9	1.3×
174	Neuwied Rheinland-Pfalz, Germany	19.9	1.3×
176	Kanpur Uttar Pradesh, India	19.8	1.3×
176	Bonn North Rhine-Westphalia, Germany	19.8	1.3×
176	Santa Catarina Nuevo León, Mexico	19.8	1.3×
179	Lazarevac Central Serbia, Serbia	19.7	1.3×
180	Vranje Central Serbia, Serbia	19.6	1.3×
180	Bhilai Chhattisgarh, India	19.6	1.3×
180	Krotoszyn Greater Poland, Poland	19.6	1.3×
183	Milan Lombardy, Italy	19.5	1.3×
184	Wan Chai Wan Chai, Hong Kong	19.4	1.3×
184	Mannheim Baden-Wurttemberg, Germany	19.4	1.3×
184	Sremska Mitrovica Vojvodina, Serbia	19.4	1.3×
187	Mexico City Mexico City, Mexico	19.3	1.3×
188	Bārān Rajasthan, India	19.2	1.3×
189	Medina Estates low-cost sensors Greater Accra, Ghana	19.1	1.3×
189	Schwerte North Rhine-Westphalia, Germany	19.1	1.3×
191	Dhule Maharashtra, India	19.0	1.3×
191	Gelsenkirchen North Rhine-Westphalia, Germany	19.0	1.3×
193	Belgrade Central Serbia, Serbia	18.9	1.3×
193	Sasarām Bihar, India	18.9	1.3×
193	Jülich North Rhine-Westphalia, Germany	18.9	1.3×
193	Bad Kreuznach Rheinland-Pfalz, Germany	18.9	1.3×
197	Chikmagalūr Karnataka, India	18.8	1.3×
197	Bhopal Madhya Pradesh, India	18.8	1.3×
197	Venlo Limburg, The Netherlands	18.8	1.3×
197	Houston Texas, United States	18.8	1.3×

Top 200 of 2,478 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