SmogRank / History / September 21, 2026

Most polluted cities on September 21, 2026

2,298 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← September 20, 2026September 22, 2026 →
#City µg/m³× WHO
1Saint-Louis low-cost sensors Saint-Louis, Senegal
309.720.6×
2Gurugram Haryana, India
144.09.6×
3Gujranwala low-cost sensors Punjab, Pakistan
130.08.7×
4Dādri Uttar Pradesh, India
113.07.5×
4Greater Noida Uttar Pradesh, India
113.07.5×
6Dera Māndi Delhi, India
102.06.8×
7Yamuna Nagar Haryana, India
94.46.3×
8Bahadurgarh Haryana, India
92.46.2×
9Faisalabad low-cost sensors Punjab, Pakistan
86.25.7×
10Noida Uttar Pradesh, India
83.45.6×
11Narela Delhi, India
83.05.5×
12Hāpur Uttar Pradesh, India
82.15.5×
13Jīnd Haryana, India
81.35.4×
14Lahore low-cost sensors Punjab, Pakistan
80.45.4×
15Multan low-cost sensors Punjab, Pakistan
79.45.3×
16Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
77.35.2×
17Sialkot low-cost sensors Punjab, Pakistan
73.64.9×
18Aya Nagar Delhi, India
73.44.9×
19Delhi Delhi, India
73.24.9×
20Kinshasa low-cost sensors Kinshasa, Democratic Republic of the Congo
71.24.7×
21Zomba low-cost sensors Southern Region, Malawi
69.84.7×
21Kuala Lumpur low-cost sensors Kuala Lumpur, Malaysia
69.84.7×
23Dhāruhera Haryana, India
67.64.5×
24Ghāziābād Uttar Pradesh, India
66.04.4×
25Surat Gujarat, India
65.84.4×
26Bhiwadi Rajasthan, India
65.24.3×
27Lilongwe low-cost sensors Central Region, Malawi
64.14.3×
28Bahawalpur low-cost sensors Punjab, Pakistan
64.04.3×
29Jammu low-cost sensors Jammu and Kashmir, India
62.84.2×
30Najafgarh Delhi, India
60.64.0×
31Rahim Yar Khan low-cost sensors Punjab, Pakistan
59.84.0×
32Muzaffarnagar Uttar Pradesh, India
59.44.0×
32Ankleshwar Gujarat, India
59.44.0×
34Kampala low-cost sensors Central Region, Uganda
59.03.9×
35Kaithal Haryana, India
58.83.9×
36Blantyre low-cost sensors Southern Region, Malawi
58.73.9×
37Jalandhar Punjab, India
56.03.7×
38Meerut Uttar Pradesh, India
55.13.7×
39Dausa Rajasthan, India
54.83.7×
40Ahmedabad Gujarat, India
53.73.6×
41Thānesar Haryana, India
52.03.5×
42Bāghpat Uttar Pradesh, India
51.43.4×
43Ambāla Haryana, India
51.13.4×
44Sonīpat Haryana, India
49.33.3×
45Nalbāri Assam, India
49.23.3×
46Rawalpindi low-cost sensors Punjab, Pakistan
49.03.3×
47Tuxtla Chiapas, Mexico
47.43.2×
48Jhunjhunūn Rajasthan, India
47.33.2×
49Iloilo low-cost sensors Western Visayas, Philippines
46.83.1×
50Morādābād Uttar Pradesh, India
46.03.1×
51Tabanan low-cost sensors Bali, Indonesia
45.33.0×
52Chittoor Andhra Pradesh, India
44.73.0×
53Sri Ganganagar Rajasthan, India
44.02.9×
54Karonga low-cost sensors Northern Region, Malawi
43.32.9×
55Harare low-cost sensors Harare, Zimbabwe
43.12.9×
56Kalyān Maharashtra, India
43.02.9×
57Būndi Rajasthan, India
41.92.8×
58Hanumāngarh Rajasthan, India
41.62.8×
59Kota Rajasthan, India
41.32.8×
60Queenstown Estate low-cost sensors Singapore
41.02.7×
61Faridabad Haryana, India
40.82.7×
62Saharsa Bihar, India
40.72.7×
63Islamabad low-cost sensors Islamabad, Pakistan
40.52.7×
63Gandhinagar Gujarat, India
40.52.7×
63Ubud low-cost sensors Bali, Indonesia
40.52.7×
66Nanded Maharashtra, India
40.42.7×
66Ajmer Rajasthan, India
40.42.7×
68Karauli Rajasthan, India
40.32.7×
69Parbhani Maharashtra, India
40.12.7×
70Singapore low-cost sensors Singapore
39.92.7×
71Dushanbe Dushanbe, Tajikistan
39.62.6×
72Vereeniging low-cost sensors Gauteng, South Africa
39.52.6×
73Baddi Himachal Pradesh, India
39.32.6×
74Raipur Chhattisgarh, India
39.12.6×
75Dhaka low-cost sensors Dhaka Division, Bangladesh
39.02.6×
76Bhilwara Rajasthan, India
38.42.6×
77Tirupati Andhra Pradesh, India
38.02.5×
78Chūru Rajasthan, India
37.82.5×
79Jalgaon Maharashtra, India
37.72.5×
80Gwalior Madhya Pradesh, India
37.52.5×
81Mzuzu low-cost sensors Northern Region, Malawi
37.42.5×
81Pratāpgarh Rajasthan, India
37.42.5×
83Dalung low-cost sensors Bali, Indonesia
37.32.5×
84Kanpur Uttar Pradesh, India
37.12.5×
84Hājīpur Bihar, India
37.12.5×
84Anantapur Andhra Pradesh, India
37.12.5×
87Serilingampalle Telangana, India
36.92.5×
88Bikaner Rajasthan, India
36.82.5×
89Karachi low-cost sensors Sindh, Pakistan
36.52.4×
90Saugor Madhya Pradesh, India
36.42.4×
91Tonk Rajasthan, India
36.32.4×
92Dubai low-cost sensors Dubai, United Arab Emirates
35.72.4×
93Lucknow Uttar Pradesh, India
35.52.4×
93Chittorgarh Rajasthan, India
35.52.4×
93Agra Uttar Pradesh, India
35.52.4×
96Jaipur Rajasthan, India
35.02.3×
97Nagaon Assam, India
34.82.3×
98Dūngarpur Rajasthan, India
34.72.3×
99Aurangabad Maharashtra, India
34.62.3×
100Murree low-cost sensors Punjab, Pakistan
34.32.3×
100Hyderabad low-cost sensors Sindh, Pakistan
34.32.3×
102San Luis Potosí San Luis Potosí, Mexico
34.02.3×
103Arāria Bihar, India
33.82.3×
103Denpasar low-cost sensors Bali, Indonesia
33.82.3×
105Mangaluru Karnataka, India
33.22.2×
106Nagpur Maharashtra, India
33.02.2×
106Butwāl low-cost sensors Lumbini Province, Nepal
33.02.2×
108Vijayawada Andhra Pradesh, India
32.92.2×
108Rasapūdipalem Andhra Pradesh, India
32.92.2×
110Patiāla Punjab, India
32.82.2×
111Bhayandar Maharashtra, India
32.52.2×
112Ibadan low-cost sensors Oyo State, Nigeria
32.32.2×
113Mahād Maharashtra, India
31.72.1×
113Vapi Gujarat, India
31.72.1×
115Dhaulpur Rajasthan, India
30.92.1×
116Obrenovac Central Serbia, Serbia
30.62.0×
117Chānda Maharashtra, India
30.52.0×
118Jodhpur Rajasthan, India
30.42.0×
119Sawai Madhopur Rajasthan, India
30.32.0×
119Amaravati Andhra Pradesh, India
30.32.0×
121Panvel Maharashtra, India
29.52.0×
122Kharghar Maharashtra, India
29.11.9×
123Nāgaur Rajasthan, India
28.71.9×
123Mumbai Maharashtra, India
28.71.9×
125Patna Bihar, India
28.01.9×
126Rājsamand Rajasthan, India
27.91.9×
126Jhālāwār Rajasthan, India
27.91.9×
126Boisar Maharashtra, India
27.91.9×
126Atlixco Puebla, Mexico
27.91.9×
130Istanbul low-cost sensors Istanbul, Turkey
27.61.8×
131Jalor Rajasthan, India
27.51.8×
131Hacienda Santa Fe Jalisco, Mexico
27.51.8×
133Nashik Maharashtra, India
27.31.8×
133Bharatpur Rajasthan, India
27.31.8×
135Quetta low-cost sensors Balochistan, Pakistan
26.91.8×
135Siwān Bihar, India
26.91.8×
137Bhilai Chhattisgarh, India
26.71.8×
137Wan Chai Wan Chai, Hong Kong
26.71.8×
139Hubballi Karnataka, India
26.51.8×
140Jaisalmer Rajasthan, India
26.21.7×
141Kathmandu low-cost sensors Bagmati Province, Nepal
26.01.7×
142Shreveport Louisiana, United States
25.81.7×
143Hyderabad Telangana, India
25.61.7×
144Ahilyanagar Maharashtra, India
25.21.7×
145Angul Odisha, India
25.11.7×
146Shivamogga Karnataka, India
24.51.6×
147Sholapur Maharashtra, India
24.31.6×
148Thāne Maharashtra, India
24.21.6×
148Chandigarh Chandigarh, India
24.21.6×
150Gaya Bihar, India
24.01.6×
151Karnāl Haryana, India
23.71.6×
152Jabalpur Madhya Pradesh, India
23.61.6×
152Bareilly Uttar Pradesh, India
23.61.6×
154Keonjhargarh Odisha, India
23.51.6×
154Begusarai Bihar, India
23.51.6×
156Agartala Tripura, India
23.31.6×
157Lagos low-cost sensors Lagos, Nigeria
23.01.5×
158Pune Maharashtra, India
22.41.5×
158Malegaon Maharashtra, India
22.41.5×
160Haldia West Bengal, India
22.31.5×
161Badlapur Maharashtra, India
22.01.5×
162Tin Shui Wai Yuen Long, Hong Kong
21.81.5×
163Bhopal Madhya Pradesh, India
21.71.4×
164Virār Maharashtra, India
21.61.4×
165Shakaskraal low-cost sensors KwaZulu-Natal, South Africa
21.31.4×
165Santa Anita Jalisco, Mexico
21.31.4×
165Wadgaon Kolhati Maharashtra, India
21.31.4×
168Rourkela Odisha, India
21.11.4×
169Chikmagalūr Karnataka, India
21.01.4×
169Zhushan Taiwan, Taiwan
21.01.4×
171Pimpri-Chinchwad Maharashtra, India
20.71.4×
172Beitbridge low-cost sensors Matabeleland South Province, Zimbabwe
20.51.4×
173Amravati Maharashtra, India
20.31.4×
174Calexico California, United States
20.21.3×
175Guadalajara Jalisco, Mexico
19.91.3×
176Bhāgalpur Bihar, India
19.71.3×
176Fanling North District, Hong Kong
19.71.3×
178Bitola Bitola, North Macedonia
19.31.3×
178Quthbullapur Telangana, India
19.31.3×
180Douliu Taiwan, Taiwan
19.21.3×
181San Tung Chung Hang Islands, Hong Kong
19.01.3×
182Mong Kok Yau Tsim Mong District, Hong Kong
18.81.3×
183Vientiane low-cost sensors Vientiane Prefecture, Laos
18.51.2×
183Erlun Taiwan, Taiwan
18.51.2×
183Aguascalientes Aguascalientes, Mexico
18.51.2×
186Chennai Tamil Nadu, India
18.41.2×
186Naharlagun Arunachal Pradesh, India
18.41.2×
188Yuanlin Taiwan, Taiwan
18.31.2×
188Sham Shui Po Sham Shui Po District, Hong Kong
18.31.2×
190Ashaiman low-cost sensors Greater Accra, Ghana
18.21.2×
191Naucalpan de Juárez México, Mexico
18.01.2×
191Byasanagar Odisha, India
18.01.2×
193Gudalur Tamil Nadu, India
17.91.2×
193Puebla Puebla, Mexico
17.91.2×
195Belgrade Central Serbia, Serbia
17.81.2×
195Kwai Chung Kwai Tsing District, Hong Kong
17.81.2×
197Srinagar Jammu and Kashmir, India
17.51.2×
197Shrīrāmpur West Bengal, India
17.51.2×
197Beigang Taiwan, Taiwan
17.51.2×
200Tsuen Wan Tsuen Wan, Hong Kong
17.41.2×

Top 200 of 2,298 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