SmogRank / History / week of January 12, 2026

Most polluted cities, week of January 12, 2026

2,055 cities ranked by their average PM2.5 over the 7 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³
1	Faisalabad low-cost sensors Punjab, Pakistan	323.1
2	Peshawar low-cost sensors Khyber Pakhtunkhwa, Pakistan	258.9
3	Lahore low-cost sensors Punjab, Pakistan	254.7
4	Multan low-cost sensors Punjab, Pakistan	252.4
5	Delhi Delhi, India	251.4
6	Gujranwala low-cost sensors Punjab, Pakistan	243.7
7	Sialkot low-cost sensors Punjab, Pakistan	238.9
8	Srinagar Jammu and Kashmir, India	234.8
9	Bahawalpur low-cost sensors Punjab, Pakistan	226.0
10	Kojomkul low-cost sensors Chuy Region, Kyrgyzstan	187.0
11	Rawalpindi low-cost sensors Punjab, Pakistan	182.3
12	Islamabad low-cost sensors Islamabad, Pakistan	138.4
13	Pljevlja Pljevlja, Montenegro	132.6
14	Hyderabad low-cost sensors Sindh, Pakistan	128.9
15	Bishkek low-cost sensors Bishkek, Kyrgyzstan	125.2
16	Lebedinovka low-cost sensors Chuy Region, Kyrgyzstan	124.1
17	Sarajevo Federation of B&H, Bosnia and Herzegovina	113.9
18	Târgu Mureş low-cost sensors Mureș County, Romania	101.5
19	Karachi low-cost sensors Sindh, Pakistan	100.6
20	Sighetu Marmaţiei Maramureş, Romania	99.4
21	Travnik Federation of B&H, Bosnia and Herzegovina	97.1
22	Vientiane low-cost sensors Vientiane Prefecture, Laos	84.8
23	Bijelo Polje Bijelo Polje, Montenegro	84.1
24	Hyderabad Telangana, India	80.8
25	Dej Cluj County, Romania	73.9
26	Kumanovo Kumanovo, North Macedonia	73.1
27	Strumica Strumica, North Macedonia	72.6
28	Banja Luka Srpska, Bosnia and Herzegovina	71.6
29	Khlong Luang low-cost sensors Pathum Thani, Thailand	70.6
30	Kathmandu low-cost sensors Bagmati Province, Nepal	68.2
31	Târgu Jiu Gorj County, Romania	68.0
32	Bitola Bitola, North Macedonia	67.4
33	Dushanbe Dushanbe, Tajikistan	67.0
34	Gostivar Gostivar, North Macedonia	64.5
35	Wangaratta Victoria, Australia	64.0
36	Żywiec Silesia, Poland	60.9
37	Bang Pakong low-cost sensors Chachoengsao, Thailand	59.2
38	Chrang Chamreh Muoy low-cost sensors Phnom Penh, Cambodia	58.1
39	Sai Mai low-cost sensors Bangkok, Thailand	57.9
40	Kardítsa Thessaly, Greece	57.5
40	Lagos low-cost sensors Lagos, Nigeria	57.5
42	Debrecen low-cost sensors Hajdú-Bihar, Hungary	57.3
43	Talghar low-cost sensors Almaty Region, Kazakhstan	55.9
44	Quetta low-cost sensors Balochistan, Pakistan	55.0
45	Otwock Mazovia, Poland	54.8
46	Otegen Batyra low-cost sensors Almaty Region, Kazakhstan	53.9
47	Gorzów Wielkopolski Lubusz, Poland	52.6
48	Bangkok low-cost sensors Bangkok, Thailand	52.3
48	Tulare low-cost sensors California, United States	52.3
50	Delano low-cost sensors California, United States	52.1
51	Kazincbarcika Borsod-Abaúj-Zemplén, Hungary	51.8
52	Ilinden Ilinden, North Macedonia	51.0
53	Zagreb low-cost sensors Zagreb, Croatia	50.5
54	Zamość Lublin, Poland	50.1
55	Skopje Grad Skopje, North Macedonia	49.9
56	Burunday low-cost sensors Almaty Region, Kazakhstan	48.9
57	Miskolc Borsod-Abaúj-Zemplén, Hungary	48.0
58	Czechowice-Dziedzice Silesia, Poland	47.3
59	Tarnów Lesser Poland, Poland	46.7
60	Changchun low-cost sensors Jilin, China	46.6
61	Kłodzko Lower Silesia, Poland	46.5
62	Prilep Prilep, North Macedonia	46.3
63	Legionowo Mazovia, Poland	45.6
64	Przemyśl Subcarpathia, Poland	45.4
65	Tema low-cost sensors Greater Accra, Ghana	45.2
66	Murree low-cost sensors Punjab, Pakistan	44.9
67	Kraków Lesser Poland, Poland	44.7
68	Kalisz Greater Poland, Poland	44.2
69	Ashaiman low-cost sensors Greater Accra, Ghana	43.9
70	Dębica Subcarpathia, Poland	43.8
71	Almaty low-cost sensors Almaty, Kazakhstan	43.7
72	Opole Opole Voivodeship, Poland	43.5
73	Włocławek Kujawsko-Pomorskie, Poland	43.4
74	Lublin Lublin, Poland	43.1
74	Phuntsholing low-cost sensors Chukha, Bhutan	43.1
76	Buftea Ilfov, Romania	42.9
77	Dubai low-cost sensors Dubai, United Arab Emirates	42.8
77	Stodůlky low-cost sensors Prague, Czechia	42.8
77	Jastrzębie Zdrój Silesia, Poland	42.8
80	Olsztyn Warmia-Masuria, Poland	42.6
81	Poznań Greater Poland, Poland	42.5
82	Quezon City low-cost sensors National Capital Region, Philippines	42.4
83	Suceava Suceava, Romania	42.2
84	Lárisa Thessaly, Greece	42.0
85	Ciechanów Mazovia, Poland	41.8
86	Ptuj Urban Municipality of Ptuj, Slovenia	40.9
87	Esztergom Komárom-Esztergom, Hungary	40.7
88	Tríkala Thessaly, Greece	40.5
88	Říčany low-cost sensors Central Bohemia, Czechia	40.5
90	Ohrid Ohrid, North Macedonia	39.8
91	Nisko Subcarpathia, Poland	39.7
92	Győr Győr-Moson-Sopron, Hungary	39.5
93	Voluntari Ilfov, Romania	39.4
94	Yerevan low-cost sensors Yerevan, Armenia	39.0
94	Konstancin-Jeziorna Mazovia, Poland	39.0
96	Cluj-Napoca Cluj County, Romania	38.9
97	Radomsko Łódź Voivodeship, Poland	38.7
98	Wrocław Lower Silesia, Poland	38.4
99	Starachowice Świętokrzyskie, Poland	38.3
99	Medina Estates low-cost sensors Greater Accra, Ghana	38.3
101	Warsaw Mazovia, Poland	38.2
102	Tuen Mun Tuen Mun, Hong Kong	38.1
103	Graz Styria, Austria	37.9
103	Gdańsk Pomerania, Poland	37.9
105	Iaşi Iași County, Romania	37.8
106	Toruń Kujawsko-Pomorskie, Poland	37.1
106	Nikšić Opština Nikšić, Montenegro	37.1
108	Pruszków Mazovia, Poland	36.6
108	Zgierz Łódź Voivodeship, Poland	36.6
110	Piatra Neamţ Neamț County, Romania	36.3
110	Craiova Dolj, Romania	36.3
112	Tlaquepaque Jalisco, Mexico	36.1
113	Rzeszów Subcarpathia, Poland	36.0
113	Łask Łódź Voivodeship, Poland	36.0
115	Rēzekne Rēzekne, Latvia	35.8
116	Manlleu Catalonia, Spain	35.7
117	Zalău Sălaj County, Romania	35.5
117	Elbląg Warmia-Masuria, Poland	35.5
119	Suwałki Podlasie, Poland	35.4
120	Ełk Warmia-Masuria, Poland	35.3
120	Białystok Podlasie, Poland	35.3
120	Elk Grove low-cost sensors California, United States	35.3
123	Wolfsberg Carinthia, Austria	35.2
123	Pécs Baranya, Hungary	35.2
125	Bakersfield California, United States	35.0
126	Żyrardów Mazovia, Poland	34.8
126	Chiang Mai low-cost sensors Chiang Mai, Thailand	34.8
128	Nyíregyháza Szabolcs-Szatmár-Bereg, Hungary	34.7
128	Wan Chai Wan Chai, Hong Kong	34.7
130	Hacienda Santa Fe Jalisco, Mexico	34.6
131	Ventspils Ventspils, Latvia	34.5
131	Augustów Podlasie, Poland	34.5
131	Maribor Urban Municipality of Maribor, Slovenia	34.5
134	Zielona Góra Lubusz, Poland	34.1
135	Douliu Taiwan, Taiwan	34.0
136	Tin Shui Wai Yuen Long, Hong Kong	33.9
137	Radom Mazovia, Poland	33.7
137	Accra low-cost sensors Greater Accra, Ghana	33.7
137	Gyál Pest County, Hungary	33.7
140	Budapest Budapest, Hungary	33.6
141	Fanling North District, Hong Kong	33.5
141	Fresno California, United States	33.5
143	Jarosław Subcarpathia, Poland	33.4
144	Gorizia Friuli Venezia Giulia, Italy	33.3
145	Guadalajara Jalisco, Mexico	33.1
146	Bydgoszcz Kujawsko-Pomorskie, Poland	33.0
147	Popeşti-Leordeni Ilfov, Romania	32.9
148	Sukuta low-cost sensors Western, Gambia	32.8
149	Koper Urban Municipality of Koper, Slovenia	32.6
150	Bucharest Bucharest, Romania	32.3
150	Xonacatlán México, Mexico	32.3
152	Ziguinchor low-cost sensors Ziguinchor, Senegal	32.0
153	Volos Thessaly, Greece	31.8
154	Gdynia Pomerania, Poland	31.7
155	Sopot Pomerania, Poland	31.6
155	Racibórz Silesia, Poland	31.6
157	Erlun Taiwan, Taiwan	31.0
157	Mong Kok Yau Tsim Mong District, Hong Kong	31.0
159	Sham Shui Po Sham Shui Po District, Hong Kong	30.9
160	Płock Mazovia, Poland	30.8
160	Visalia California, United States	30.8
162	Yongkang Taiwan, Taiwan	30.7
163	Brzeg Opole Voivodeship, Poland	30.6
164	Kochani Kochani, North Macedonia	30.5
164	Modesto California, United States	30.5
166	Jincheng Fukien, Taiwan	30.4
166	Chiayi City Taiwan, Taiwan	30.4
166	San Tung Chung Hang Islands, Hong Kong	30.4
169	Katowice Silesia, Poland	30.3
170	Lilongwe low-cost sensors Central Region, Malawi	30.1
171	Calafat Dolj, Romania	29.9
171	Florin low-cost sensors California, United States	29.9
173	Xinying Taiwan, Taiwan	29.8
174	Łódź Łódź Voivodeship, Poland	29.7
175	Żary Lubusz, Poland	29.6
176	Tainan Taiwan, Taiwan	29.5
177	Kędzierzyn-Koźle Opole Voivodeship, Poland	29.2
178	Fengshan Takao, Taiwan	29.1
179	Veszprém Veszprém, Hungary	29.0
180	Wawer Mazovia, Poland	28.8
181	Novo Mesto Urban Municipality of Novo Mesto, Slovenia	28.6
181	Hanford California, United States	28.6
183	Szczecin West Pomerania, Poland	28.5
184	Haskovo low-cost sensors Haskovo, Bulgaria	28.4
184	Kaohsiung Takao, Taiwan	28.4
186	Beigang Taiwan, Taiwan	28.2
186	Iloilo low-cost sensors Western Visayas, Philippines	28.2
186	Tai Po Tai Po, Hong Kong	28.2
189	Klosterneuburg Lower Austria, Austria	28.0
190	Yuanlin Taiwan, Taiwan	27.9
191	Ruse Ruse, Bulgaria	27.7
191	Ciudad Nezahualcoyotl México, Mexico	27.7
191	Millcreek Utah, United States	27.7
194	Victoria Central and Western, Hong Kong	27.6
194	Jelenia Góra Lower Silesia, Poland	27.6
196	Kwai Chung Kwai Tsing District, Hong Kong	27.5
196	Dunaújváros Fejér, Hungary	27.5
198	Mielec Subcarpathia, Poland	27.4
199	Vienna Vienna, Austria	27.3
200	Stockton California, United States	27.2

Top 200 of 2,055 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