SmogRank / History / January 31, 2026

Most polluted cities on January 31, 2026

2,273 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← January 30, 2026February 1, 2026 →
#City µg/m³× WHO
1Kojomkul low-cost sensors Chuy Region, Kyrgyzstan
320.021.3×
2Noida Uttar Pradesh, India
214.014.3×
3Dhāruhera Haryana, India
193.012.9×
4Delhi Delhi, India
189.012.6×
5Bishkek low-cost sensors Bishkek, Kyrgyzstan
188.012.5×
6Yerevan low-cost sensors Yerevan, Armenia
183.512.2×
7Gujranwala low-cost sensors Punjab, Pakistan
180.012.0×
8Faisalabad low-cost sensors Punjab, Pakistan
178.511.9×
9Multan low-cost sensors Punjab, Pakistan
178.011.9×
9Lahore low-cost sensors Punjab, Pakistan
178.011.9×
9Gurugram Haryana, India
178.011.9×
12Lebedinovka low-cost sensors Chuy Region, Kyrgyzstan
170.511.4×
13Bahawalpur low-cost sensors Punjab, Pakistan
165.011.0×
14Sialkot low-cost sensors Punjab, Pakistan
157.010.5×
15Najafgarh Delhi, India
154.010.3×
16Bhiwadi Rajasthan, India
150.010.0×
17Greater Noida Uttar Pradesh, India
147.09.8×
18Aya Nagar Delhi, India
146.09.7×
19Dera Māndi Delhi, India
142.09.5×
20Bāghpat Uttar Pradesh, India
140.09.3×
21Narela Delhi, India
137.09.1×
22Talghar low-cost sensors Almaty Region, Kazakhstan
127.08.5×
23Singrauli Madhya Pradesh, India
117.07.8×
24Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
116.07.7×
25Tumkūr Karnataka, India
114.07.6×
26Faridabad Haryana, India
111.17.4×
27Rawalpindi low-cost sensors Punjab, Pakistan
111.07.4×
28Ankleshwar Gujarat, India
110.07.3×
29Baddi Himachal Pradesh, India
106.07.1×
30Gummidipundi Tamil Nadu, India
105.07.0×
31Naharlagun Arunachal Pradesh, India
102.06.8×
32Hyderabad low-cost sensors Sindh, Pakistan
99.56.6×
33Muzaffarnagar Uttar Pradesh, India
99.26.6×
34Ghāziābād Uttar Pradesh, India
98.76.6×
35Angul Odisha, India
97.16.5×
36Rasapūdipalem Andhra Pradesh, India
95.86.4×
37Gudalur Tamil Nadu, India
91.86.1×
38Baripāda Odisha, India
90.66.0×
39Chūru Rajasthan, India
90.16.0×
40Chittorgarh Rajasthan, India
90.06.0×
41Ahmedabad Gujarat, India
87.65.8×
42Jhālāwār Rajasthan, India
86.05.7×
43Bahadurgarh Haryana, India
85.45.7×
44Phuntsholing low-cost sensors Chukha, Bhutan
85.15.7×
45Jalor Rajasthan, India
83.95.6×
46Amaravati Andhra Pradesh, India
83.65.6×
47Almaty low-cost sensors Almaty, Kazakhstan
82.95.5×
48Kathmandu low-cost sensors Bagmati Province, Nepal
81.45.4×
49Barbil Odisha, India
79.45.3×
50Otegen Batyra low-cost sensors Almaty Region, Kazakhstan
78.85.3×
51Khlong Luang low-cost sensors Pathum Thani, Thailand
78.65.2×
52Dhule Maharashtra, India
78.15.2×
53Byasanagar Odisha, India
77.95.2×
54Bhilwara Rajasthan, India
77.85.2×
55Vapi Gujarat, India
76.75.1×
56Nalbāri Assam, India
76.35.1×
57Tonk Rajasthan, India
75.75.0×
58Rājsamand Rajasthan, India
75.55.0×
59Hājīpur Bihar, India
75.45.0×
59Kolkata West Bengal, India
75.45.0×
61Kampala low-cost sensors Central Region, Uganda
75.25.0×
62Karachi low-cost sensors Sindh, Pakistan
74.95.0×
63Kalyān Maharashtra, India
74.85.0×
64Jhunjhunūn Rajasthan, India
74.65.0×
65Sīkar Rajasthan, India
74.24.9×
65Boisar Maharashtra, India
74.24.9×
67Lucknow Uttar Pradesh, India
73.84.9×
68Cuttack Odisha, India
73.64.9×
69Sholapur Maharashtra, India
72.94.9×
69Bhubaneswar Odisha, India
72.94.9×
71Burunday low-cost sensors Almaty Region, Kazakhstan
72.54.8×
72Islamabad low-cost sensors Islamabad, Pakistan
72.24.8×
73Dūngarpur Rajasthan, India
71.74.8×
74Serilingampalle Telangana, India
71.04.7×
75Kota Rajasthan, India
70.84.7×
76Badlapur Maharashtra, India
70.64.7×
77Nagaon Assam, India
70.54.7×
78Nagpur Maharashtra, India
70.24.7×
78Pljevlja Pljevlja, Montenegro
70.24.7×
80Yadgir Karnataka, India
69.84.7×
81Bikaner Rajasthan, India
68.54.6×
82Pimpri-Chinchwad Maharashtra, India
68.04.5×
83Chandigarh Chandigarh, India
67.94.5×
84Pune Maharashtra, India
67.64.5×
85Hāpur Uttar Pradesh, India
67.44.5×
86Būndi Rajasthan, India
67.24.5×
86Begusarai Bihar, India
67.24.5×
88Gandhinagar Gujarat, India
66.04.4×
89Târgu Mureş low-cost sensors Mureș County, Romania
65.84.4×
89Keonjhargarh Odisha, India
65.84.4×
91Aurangabad Maharashtra, India
65.74.4×
92Rānīganj West Bengal, India
65.34.4×
93Haldia West Bengal, India
65.14.3×
94Pratāpgarh Rajasthan, India
63.94.3×
95Kaithal Haryana, India
63.44.2×
96Parbhani Maharashtra, India
62.64.2×
97Thānesar Haryana, India
62.44.2×
98Rourkela Odisha, India
62.24.1×
99Bhayandar Maharashtra, India
62.14.1×
100Guwahati Assam, India
62.04.1×
101Mahād Maharashtra, India
61.34.1×
102Durgapur West Bengal, India
61.14.1×
103Prayagraj Uttar Pradesh, India
60.94.1×
103Vientiane low-cost sensors Vientiane Prefecture, Laos
60.94.1×
105Latur Maharashtra, India
60.74.0×
105Agra Uttar Pradesh, India
60.74.0×
107Patna Bihar, India
60.64.0×
107Nandri Rajasthan, India
60.64.0×
109Meerut Uttar Pradesh, India
60.14.0×
110Chittoor Andhra Pradesh, India
59.94.0×
111Sri Ganganagar Rajasthan, India
59.13.9×
112Sai Mai low-cost sensors Bangkok, Thailand
59.03.9×
113Kharghar Maharashtra, India
58.93.9×
114Ban Khlong Prawet low-cost sensors Bangkok, Thailand
58.63.9×
115Jaipur Rajasthan, India
58.13.9×
115Bhelai Chhattisgarh, India
58.13.9×
117Nanded Maharashtra, India
57.73.8×
118Changchun low-cost sensors Jilin, China
57.63.8×
119Bānswāra Rajasthan, India
57.53.8×
120Gaya Bihar, India
57.03.8×
121Jalgaon Maharashtra, India
56.53.8×
122Jodhpur Rajasthan, India
55.73.7×
122Stodůlky low-cost sensors Prague, Czechia
55.73.7×
124Tirupati Andhra Pradesh, India
54.63.6×
125Nāgaur Rajasthan, India
54.53.6×
125Morādābād Uttar Pradesh, India
54.53.6×
127Jaisalmer Rajasthan, India
54.33.6×
128Delano low-cost sensors California, United States
54.13.6×
129Ajmer Rajasthan, India
53.83.6×
130Zagreb low-cost sensors Zagreb, Croatia
52.63.5×
131Sāngli Maharashtra, India
52.53.5×
132Mumbai Maharashtra, India
52.33.5×
132Āsansol West Bengal, India
52.33.5×
134Sirsa Haryana, India
51.33.4×
135Chāpra Bihar, India
50.73.4×
136Tulare low-cost sensors California, United States
50.53.4×
137Bhopal Madhya Pradesh, India
49.83.3×
138Yamuna Nagar Haryana, India
49.63.3×
139Hanumāngarh Rajasthan, India
49.23.3×
139Bangkok low-cost sensors Bangkok, Thailand
49.23.3×
141Kavadarci Kavadarci, North Macedonia
49.13.3×
142Dushanbe Dushanbe, Tajikistan
48.93.3×
143Sirohi Rajasthan, India
48.83.3×
144Chānda Maharashtra, India
48.63.2×
145Říčany low-cost sensors Central Bohemia, Czechia
48.43.2×
146Dessau Saxony-Anhalt, Germany
47.73.2×
147Shrīrāmpur West Bengal, India
47.43.2×
148Burg bei Magdeburg Saxony-Anhalt, Germany
47.33.2×
148Bernburg Saxony-Anhalt, Germany
47.33.2×
150Târgu Jiu Gorj County, Romania
46.93.1×
151Ashaiman low-cost sensors Greater Accra, Ghana
46.83.1×
152Lagos low-cost sensors Lagos, Nigeria
46.53.1×
153Korhogo low-cost sensors Savanes District, Ivory Coast
45.73.0×
153Chrang Chamreh Muoy low-cost sensors Phnom Penh, Cambodia
45.73.0×
155Bhiwandi Maharashtra, India
45.63.0×
156Kolhāpur Maharashtra, India
45.43.0×
157Jabalpur Madhya Pradesh, India
45.33.0×
158Magdeburg Saxony-Anhalt, Germany
45.13.0×
159Halberstadt Saxony-Anhalt, Germany
44.93.0×
160Rājgīr Bihar, India
44.83.0×
160Gwalior Madhya Pradesh, India
44.83.0×
160Amravati Maharashtra, India
44.83.0×
163Karnāl Haryana, India
44.63.0×
163Indore Madhya Pradesh, India
44.63.0×
165Joda Odisha, India
44.33.0×
166Ambāla Haryana, India
44.22.9×
167Hyderabad Telangana, India
44.02.9×
168Bakersfield California, United States
43.92.9×
169Tema low-cost sensors Greater Accra, Ghana
43.32.9×
169Wittenberg Saxony-Anhalt, Germany
43.32.9×
171Tirumala Andhra Pradesh, India
43.22.9×
172Jalandhar Punjab, India
43.02.9×
172Visalia California, United States
43.02.9×
175Dej Cluj County, Romania
42.42.8×
175Akola Maharashtra, India
42.42.8×
177Saharsa Bihar, India
42.22.8×
178Żary Lubusz, Poland
42.02.8×
179Zeitz Saxony-Anhalt, Germany
41.82.8×
180Weißenfels Saxony-Anhalt, Germany
41.72.8×
181Patiāla Punjab, India
41.62.8×
182Wolfsburg Lower Saxony, Germany
41.52.8×
183Oldenburg Lower Saxony, Germany
41.32.8×
184Veles Veles, North Macedonia
41.22.7×
184Bettiah Bihar, India
41.22.7×
186Hildesheim Lower Saxony, Germany
41.12.7×
186Hacienda Santa Fe Jalisco, Mexico
41.12.7×
188Fresno California, United States
41.02.7×
189Salzgitter Lower Saxony, Germany
40.82.7×
190Halle (Saale) Saxony-Anhalt, Germany
40.72.7×
191Bitola Bitola, North Macedonia
40.32.7×
192Rairangpur Odisha, India
39.92.7×
193Hannover Lower Saxony, Germany
39.72.6×
194Thāne Maharashtra, India
39.62.6×
194Haarlem low-cost sensors North Holland, The Netherlands
39.62.6×
196Quetta low-cost sensors Balochistan, Pakistan
39.52.6×
197Gangtok Sikkim, India
39.32.6×
197Bharatpur Rajasthan, India
39.32.6×
197Braunschweig Lower Saxony, Germany
39.32.6×
200Friesoythe Lower Saxony, Germany
39.22.6×

Top 200 of 2,273 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