SmogRank / History / April 21, 2026

Most polluted cities on April 21, 2026

2,234 cities ranked by their average PM2.5 over the day. Each city's own local calendar day.

← April 20, 2026April 22, 2026 →
#City µg/m³× WHO
1Piedras Negras Coahuila, Mexico
986.065.7×
2Wadgaon Kolhati Maharashtra, India
267.017.8×
3Gurugram Haryana, India
121.08.1×
4Chānda Maharashtra, India
108.07.2×
5Tirupati Andhra Pradesh, India
107.07.1×
6Hājīpur Bihar, India
97.86.5×
7Jīnd Haryana, India
92.26.1×
8Baddi Himachal Pradesh, India
86.95.8×
9Rahim Yar Khan low-cost sensors Punjab, Pakistan
86.45.8×
10Faisalabad low-cost sensors Punjab, Pakistan
84.25.6×
11Bhāgalpur Bihar, India
83.75.6×
12Bahadurgarh Haryana, India
83.35.6×
13Chiang Mai low-cost sensors Chiang Mai, Thailand
82.15.5×
14Bāghpat Uttar Pradesh, India
80.85.4×
15Joda Odisha, India
79.35.3×
16Najafgarh Delhi, India
79.15.3×
17Saharsa Bihar, India
77.05.1×
18Yamuna Nagar Haryana, India
76.45.1×
19Narela Delhi, India
75.95.1×
20Uttaradit low-cost sensors Uttaradit, Thailand
73.74.9×
21Undera Gujarat, India
70.94.7×
22Hanumāngarh Rajasthan, India
69.54.6×
23Valdosta Georgia, United States
68.44.6×
24Vientiane low-cost sensors Vientiane Prefecture, Laos
68.24.5×
25Bahawalpur low-cost sensors Punjab, Pakistan
67.54.5×
26Ghāziābād Uttar Pradesh, India
66.34.4×
27Mangaluru Karnataka, India
65.64.4×
28Dhāruhera Haryana, India
65.54.4×
29Patna Bihar, India
64.64.3×
30Dādri Uttar Pradesh, India
63.94.3×
31Delhi Delhi, India
62.64.2×
32Karnāl Haryana, India
62.44.2×
33Lucknow Uttar Pradesh, India
61.94.1×
34Kathmandu low-cost sensors Bagmati Province, Nepal
61.54.1×
35Parbhani Maharashtra, India
60.04.0×
35Faridabad Haryana, India
60.04.0×
37Lahore low-cost sensors Punjab, Pakistan
59.54.0×
38Panchkula Haryana, India
59.03.9×
39Bhiwadi Rajasthan, India
58.43.9×
40Kaithal Haryana, India
56.63.8×
41Jaipur Rajasthan, India
56.13.7×
42Noida Uttar Pradesh, India
55.13.7×
43Greater Noida Uttar Pradesh, India
54.83.7×
44Arrah Bihar, India
54.63.6×
45Begusarai Bihar, India
54.03.6×
46Karauli Rajasthan, India
52.63.5×
47Multan low-cost sensors Punjab, Pakistan
52.53.5×
48Vapi Gujarat, India
52.43.5×
49Thānesar Haryana, India
52.33.5×
49Barbil Odisha, India
52.33.5×
51Bārān Rajasthan, India
51.43.4×
52Malegaon Maharashtra, India
50.83.4×
53Singrauli Madhya Pradesh, India
50.13.3×
54Rourkela Odisha, India
49.73.3×
55Aya Nagar Delhi, India
49.13.3×
56Quezon City low-cost sensors National Capital Region, Philippines
48.33.2×
57Kalyān Maharashtra, India
47.73.2×
58Dhaka low-cost sensors Dhaka Division, Bangladesh
47.23.1×
59Angul Odisha, India
46.13.1×
60Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan
45.83.1×
61Kharghar Maharashtra, India
44.83.0×
62Meerut Uttar Pradesh, India
44.43.0×
63Bhiwandi Maharashtra, India
43.82.9×
64Pimpri-Chinchwad Maharashtra, India
43.52.9×
65Chrang Chamreh Muoy low-cost sensors Phnom Penh, Cambodia
43.42.9×
66Chūru Rajasthan, India
43.02.9×
67Sonīpat Haryana, India
42.72.8×
67Gaya Bihar, India
42.72.8×
69Jalgaon Maharashtra, India
42.02.8×
70Sholapur Maharashtra, India
41.92.8×
71Dhule Maharashtra, India
41.82.8×
71Palembang low-cost sensors South Sumatra, Indonesia
41.82.8×
73Nagaon Assam, India
41.72.8×
74Sialkot low-cost sensors Punjab, Pakistan
41.52.8×
75Keonjhargarh Odisha, India
41.22.7×
76Baripāda Odisha, India
40.92.7×
77Gujranwala low-cost sensors Punjab, Pakistan
40.72.7×
78Burunday low-cost sensors Almaty Region, Kazakhstan
40.62.7×
78Khlong Luang low-cost sensors Pathum Thani, Thailand
40.62.7×
80Gummidipundi Tamil Nadu, India
40.42.7×
81Durgapur West Bengal, India
40.22.7×
82Kanpur Uttar Pradesh, India
39.62.6×
82Sri Ganganagar Rajasthan, India
39.62.6×
84Kampala low-cost sensors Central Region, Uganda
39.22.6×
84Vijayawada Andhra Pradesh, India
39.22.6×
84Mahād Maharashtra, India
39.22.6×
87Nagpur Maharashtra, India
38.92.6×
88Brunswick Georgia, United States
38.82.6×
89Otegen Batyra low-cost sensors Almaty Region, Kazakhstan
38.72.6×
90Dubai low-cost sensors Dubai, United Arab Emirates
38.52.6×
90Tonk Rajasthan, India
38.52.6×
92Siwān Bihar, India
38.42.6×
93Anantapur Andhra Pradesh, India
37.82.5×
94Phuntsholing low-cost sensors Chukha, Bhutan
37.72.5×
95Lilongwe low-cost sensors Central Region, Malawi
37.32.5×
96Jammu low-cost sensors Jammu and Kashmir, India
37.12.5×
97Bang Pakong low-cost sensors Chachoengsao, Thailand
36.72.4×
97Sai Mai low-cost sensors Bangkok, Thailand
36.72.4×
99Jalandhar Punjab, India
36.62.4×
100Ajmer Rajasthan, India
36.52.4×
101Rājgīr Bihar, India
36.32.4×
101Jhunjhunūn Rajasthan, India
36.32.4×
103Bhopal Madhya Pradesh, India
36.12.4×
103Iloilo low-cost sensors Western Visayas, Philippines
36.12.4×
105Haldia West Bengal, India
35.82.4×
106Bikaner Rajasthan, India
35.72.4×
106Aurangabad Maharashtra, India
35.72.4×
108Agartala Tripura, India
35.62.4×
109Surat Gujarat, India
35.42.4×
110Gwalior Madhya Pradesh, India
35.32.4×
111Chandigarh Chandigarh, India
34.72.3×
111Ban Khlong Prawet low-cost sensors Bangkok, Thailand
34.72.3×
113Shrīrāmpur West Bengal, India
34.62.3×
114Saugor Madhya Pradesh, India
34.42.3×
115Bhayandar Maharashtra, India
34.32.3×
116Neelankarai Tamil Nadu, India
34.22.3×
117Latur Maharashtra, India
33.92.3×
118Badlapur Maharashtra, India
33.82.3×
119Buxar Bihar, India
33.52.2×
120Patiāla Punjab, India
33.32.2×
120Serilingampalle Telangana, India
33.32.2×
122Dausa Rajasthan, India
33.22.2×
123Mumbai Maharashtra, India
33.12.2×
123Bangkok low-cost sensors Bangkok, Thailand
33.12.2×
125Rawalpindi low-cost sensors Punjab, Pakistan
32.82.2×
126Kolkata West Bengal, India
32.62.2×
127Pune Maharashtra, India
32.52.2×
128Ibadan low-cost sensors Oyo State, Nigeria
32.22.1×
129Arāria Bihar, India
31.72.1×
130Hyderabad low-cost sensors Sindh, Pakistan
31.62.1×
130Closepet Karnataka, India
31.62.1×
130Jharia Jharkhand, India
31.62.1×
130Sukuta low-cost sensors Western, Gambia
31.62.1×
134Nashik Maharashtra, India
31.52.1×
134San Salvador Tizatlalli México, Mexico
31.52.1×
136Akola Maharashtra, India
31.32.1×
137San Luis Potosí San Luis Potosí, Mexico
31.12.1×
138Kadapa Andhra Pradesh, India
31.02.1×
139Yadgir Karnataka, India
30.92.1×
139Coimbatore Tamil Nadu, India
30.92.1×
139Bānswāra Rajasthan, India
30.92.1×
142Kolhāpur Maharashtra, India
30.52.0×
143Tirumala Andhra Pradesh, India
30.42.0×
143Chittoor Andhra Pradesh, India
30.42.0×
143Byasanagar Odisha, India
30.42.0×
146Jabalpur Madhya Pradesh, India
29.92.0×
147Bareilly Uttar Pradesh, India
29.82.0×
147Agra Uttar Pradesh, India
29.82.0×
149Sīkar Rajasthan, India
29.72.0×
149Beigang Taiwan, Taiwan
29.72.0×
151Amravati Maharashtra, India
29.62.0×
152Calexico California, United States
29.42.0×
153Boisar Maharashtra, India
29.32.0×
154Morādābād Uttar Pradesh, India
28.91.9×
155Jhālāwār Rajasthan, India
28.81.9×
156Ahmedabad Gujarat, India
28.71.9×
157Hacienda Santa Fe Jalisco, Mexico
28.41.9×
158Douliu Taiwan, Taiwan
28.21.9×
158Quthbullapur Telangana, India
28.21.9×
160Hyderabad Telangana, India
28.01.9×
160Deer Park Texas, United States
28.01.9×
162Nanded Maharashtra, India
27.91.9×
163Jincheng Fukien, Taiwan
27.51.8×
164Sāngli Maharashtra, India
27.41.8×
165Virār Maharashtra, India
27.21.8×
166Indore Madhya Pradesh, India
27.01.8×
166Erlun Taiwan, Taiwan
27.01.8×
168Taibao Taiwan, Taiwan
26.41.8×
169Erlin Taiwan, Taiwan
26.01.7×
170Tlaquepaque Jalisco, Mexico
25.91.7×
170Columbus Georgia, United States
25.91.7×
172Yuanlin Taiwan, Taiwan
25.71.7×
173Miaoli Taiwan, Taiwan
25.51.7×
174Bhubaneswar Odisha, India
25.21.7×
175Rairangpur Odisha, India
25.11.7×
175Tuxtla Chiapas, Mexico
25.11.7×
177Pratāpgarh Rajasthan, India
25.01.7×
178Maebaru-chūō Fukuoka, Japan
24.81.7×
179Taichung Taiwan, Taiwan
24.71.6×
180Āsansol West Bengal, India
24.61.6×
181Gangtok Sikkim, India
24.51.6×
182Hubballi Karnataka, India
24.41.6×
183Lagos low-cost sensors Lagos, Nigeria
24.31.6×
184Islamabad low-cost sensors Islamabad, Pakistan
24.21.6×
185Karachi low-cost sensors Sindh, Pakistan
24.01.6×
186Bengaluru Karnataka, India
23.61.6×
186Xinying Taiwan, Taiwan
23.61.6×
188Perundurai Tamil Nadu, India
23.31.6×
189Nāgaur Rajasthan, India
23.21.5×
190Gudalur Tamil Nadu, India
23.11.5×
191Sirsa Haryana, India
23.01.5×
191Rānīganj West Bengal, India
23.01.5×
191Nantou Taiwan, Taiwan
23.01.5×
194Chittorgarh Rajasthan, India
22.91.5×
194Gainesville Florida, United States
22.91.5×
196Changhua Taiwan, Taiwan
22.61.5×
197Gandhinagar Gujarat, India
22.41.5×
197Yongkang Taiwan, Taiwan
22.41.5×
199Toufen Taiwan, Taiwan
22.31.5×
200Rasapūdipalem Andhra Pradesh, India
22.21.5×

Top 200 of 2,234 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