SmogRank / Episodes / Poland
Poland, January 2026
For 2 days, from 5 to 6 January 2026, 45 cities in Poland had PM2.5 at least twice their usual for the time of year. The worst reading was Łask, Łódź Voivodeship, Poland: 135.0 µg/m³ on 6 January, about 5.7× its usual 23.7.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 45 in 1 country
Days 2 5 to 6 January 2026
Worst day 6 January 44 cities counted
Furthest above usual 5.7× Łask
Day by day
Play 6 January 44 cities at twice their usual or more
Brzeg Racibórz Olsztyn Mielec Dębica Jasło Zielona Góra Lublin Krosno Kołobrzeg Białystok Przemyśl Eisenhüttenstadt Zamość Frankfurt (Oder) Szczecin Cottbus Schwedt (Oder) Říčany Prague Lubnjow Stodůlky Strausberg Neuenhagen Königs Wusterhausen Bernau bei Berlin Blankenfelde-Mahlow Berlin Teltow Kleinmachnow Oranienburg Luckenwalde Neubrandenburg Falkensee Potsdam Nauen Neuruppin Stralsund Wittenberg Brandenburg an der Havel Altenburg Ełk Jarosław Augustów Katowice Żary Starachowice Kraków Żywiec Wrocław Kędzierzyn-Koźle Rzeszów Radom Suwałki Gdynia Tarnów Nisko Jastrzębie Zdrój Łódź Gdańsk Kościerzyna Czechowice-Dziedzice Kielce Opole Otwock Legionowo Gorzów Wielkopolski Płock Pruszków Warsaw Toruń Jelenia Góra Poznań Konstancin-Jeziorna Wawer Ciechanów Zgierz Elbląg Włocławek Kutno Bydgoszcz Żyrardów Kalisz Kłodzko Radomsko Łask 2 Jan 3 4 5 6 7 8 9 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.
How it spread
Żywiec Żywiec, 2 January: 7.4 µg/m³ Żywiec, 3 January: 6.0 µg/m³ Żywiec, 4 January: 9.2 µg/m³ Żywiec, 5 January: 74.6 µg/m³, 2.2× its usual 34.5 Żywiec, 6 January: 71.4 µg/m³, 2.0× its usual 35.1 Żywiec, 7 January: no reading Żywiec, 8 January: no reading Żywiec, 9 January: 91.6 µg/m³ Radomsko Radomsko, 2 January: 9.1 µg/m³ Radomsko, 3 January: 8.7 µg/m³ Radomsko, 4 January: 13.4 µg/m³ Radomsko, 5 January: 70.1 µg/m³, 3.1× its usual 22.5 Radomsko, 6 January: 126.0 µg/m³, 5.6× its usual 22.5 Radomsko, 7 January: no reading Radomsko, 8 January: no reading Radomsko, 9 January: 49.8 µg/m³ Kłodzko Kłodzko, 2 January: 6.6 µg/m³ Kłodzko, 3 January: 7.5 µg/m³ Kłodzko, 4 January: 10.4 µg/m³ Kłodzko, 5 January: 58.6 µg/m³, 2.7× its usual 21.5 Kłodzko, 6 January: 120.0 µg/m³, 5.6× its usual 21.6 Kłodzko, 7 January: no reading Kłodzko, 8 January: no reading Kłodzko, 9 January: 152.0 µg/m³ Otwock Otwock, 2 January: 11.3 µg/m³ Otwock, 3 January: 10.2 µg/m³ Otwock, 4 January: 13.5 µg/m³ Otwock, 5 January: 55.4 µg/m³, 2.2× its usual 24.7 Otwock, 6 January: 82.8 µg/m³, 3.3× its usual 25.4 Otwock, 7 January: no reading Otwock, 8 January: no reading Otwock, 9 January: 34.2 µg/m³ Kutno Kutno, 2 January: 9.5 µg/m³ Kutno, 3 January: 11.2 µg/m³ Kutno, 4 January: 12.2 µg/m³ Kutno, 5 January: 45.0 µg/m³, 2.0× its usual 22.2 Kutno, 6 January: 101.0 µg/m³, 4.5× its usual 22.2 Kutno, 7 January: no reading Kutno, 8 January: no reading Kutno, 9 January: no reading Legionowo Legionowo, 2 January: 7.7 µg/m³ Legionowo, 3 January: 7.3 µg/m³ Legionowo, 4 January: 7.8 µg/m³ Legionowo, 5 January: 43.8 µg/m³, 2.2× its usual 20.0 Legionowo, 6 January: 68.8 µg/m³, 3.4× its usual 20.0 Legionowo, 7 January: no reading Legionowo, 8 January: no reading Legionowo, 9 January: 17.7 µg/m³ Kalisz Kalisz, 2 January: 8.4 µg/m³ Kalisz, 3 January: 8.9 µg/m³ Kalisz, 4 January: 11.0 µg/m³ Kalisz, 5 January: 42.1 µg/m³, 2.1× its usual 20.5 Kalisz, 6 January: 112.0 µg/m³, 5.5× its usual 20.4 Kalisz, 7 January: no reading Kalisz, 8 January: no reading Kalisz, 9 January: 56.2 µg/m³ Jelenia Góra Jelenia Góra, 2 January: 5.4 µg/m³ Jelenia Góra, 3 January: 6.5 µg/m³ Jelenia Góra, 4 January: 8.0 µg/m³ Jelenia Góra, 5 January: 40.0 µg/m³, 2.3× its usual 17.1 Jelenia Góra, 6 January: 64.6 µg/m³, 3.9× its usual 16.6 Jelenia Góra, 7 January: no reading Jelenia Góra, 8 January: no reading Jelenia Góra, 9 January: 50.8 µg/m³ Kędzierzyn-Koźle Kędzierzyn-Koźle, 2 January: 4.7 µg/m³ Kędzierzyn-Koźle, 3 January: 5.1 µg/m³ Kędzierzyn-Koźle, 4 January: 7.1 µg/m³ Kędzierzyn-Koźle, 5 January: 38.4 µg/m³, 2.1× its usual 18.5 Kędzierzyn-Koźle, 6 January: 42.7 µg/m³, 2.3× its usual 18.5 Kędzierzyn-Koźle, 7 January: no reading Kędzierzyn-Koźle, 8 January: no reading Kędzierzyn-Koźle, 9 January: 68.2 µg/m³ Gorzów Wielkopolski Gorzów Wielkopolski, 2 January: 7.3 µg/m³ Gorzów Wielkopolski, 3 January: 8.6 µg/m³ Gorzów Wielkopolski, 4 January: 14.7 µg/m³ Gorzów Wielkopolski, 5 January: 31.4 µg/m³, 2.1× its usual 15.3 Gorzów Wielkopolski, 6 January: 54.7 µg/m³, 3.6× its usual 15.0 Gorzów Wielkopolski, 7 January: no reading Gorzów Wielkopolski, 8 January: no reading Gorzów Wielkopolski, 9 January: 47.3 µg/m³ Suwałki Suwałki, 2 January: 10.6 µg/m³ Suwałki, 3 January: 10.7 µg/m³ Suwałki, 4 January: 12.1 µg/m³ Suwałki, 5 January: 31.2 µg/m³, 2.4× its usual 12.9 Suwałki, 6 January: 25.4 µg/m³ Suwałki, 7 January: no reading Suwałki, 8 January: no reading Suwałki, 9 January: 5.3 µg/m³ Łask Łask, 2 January: 10.2 µg/m³ Łask, 3 January: 14.3 µg/m³ Łask, 4 January: 12.4 µg/m³ Łask, 5 January: 44.6 µg/m³ Łask, 6 January: 135.0 µg/m³, 5.7× its usual 23.7 Łask, 7 January: no reading Łask, 8 January: no reading Łask, 9 January: 44.6 µg/m³ Zgierz Zgierz, 2 January: 17.8 µg/m³ Zgierz, 3 January: 16.9 µg/m³ Zgierz, 4 January: 19.9 µg/m³ Zgierz, 5 January: 51.1 µg/m³ Zgierz, 6 January: 119.0 µg/m³, 4.1× its usual 29.2 Zgierz, 7 January: no reading Zgierz, 8 January: no reading Zgierz, 9 January: 46.3 µg/m³ Włocławek Włocławek, 2 January: 8.7 µg/m³ Włocławek, 3 January: 9.6 µg/m³ Włocławek, 4 January: 14.0 µg/m³ Włocławek, 5 January: 39.6 µg/m³ Włocławek, 6 January: 102.0 µg/m³, 4.4× its usual 23.2 Włocławek, 7 January: no reading Włocławek, 8 January: no reading Włocławek, 9 January: 28.6 µg/m³ Żyrardów Żyrardów, 2 January: no reading Żyrardów, 3 January: 7.3 µg/m³ Żyrardów, 4 January: no reading Żyrardów, 5 January: no reading Żyrardów, 6 January: 97.1 µg/m³, 4.7× its usual 20.8 Żyrardów, 7 January: no reading Żyrardów, 8 January: no reading Żyrardów, 9 January: no reading Ciechanów Ciechanów, 2 January: 7.7 µg/m³ Ciechanów, 3 January: 8.0 µg/m³ Ciechanów, 4 January: 8.2 µg/m³ Ciechanów, 5 January: 39.5 µg/m³ Ciechanów, 6 January: 83.8 µg/m³, 4.1× its usual 20.3 Ciechanów, 7 January: no reading Ciechanów, 8 January: no reading Ciechanów, 9 January: 16.9 µg/m³ Wawer Wawer, 2 January: 7.2 µg/m³ Wawer, 3 January: 4.6 µg/m³ Wawer, 4 January: 5.9 µg/m³ Wawer, 5 January: 22.8 µg/m³ Wawer, 6 January: 76.9 µg/m³, 4.0× its usual 19.2 Wawer, 7 January: no reading Wawer, 8 January: no reading Wawer, 9 January: 14.2 µg/m³ Pruszków Pruszków, 2 January: 9.1 µg/m³ Pruszków, 3 January: 8.7 µg/m³ Pruszków, 4 January: 10.6 µg/m³ Pruszków, 5 January: 28.2 µg/m³ Pruszków, 6 January: 74.0 µg/m³, 3.7× its usual 19.9 Pruszków, 7 January: no reading Pruszków, 8 January: no reading Pruszków, 9 January: 24.4 µg/m³ Konstancin-Jeziorna Konstancin-Jeziorna, 2 January: 7.9 µg/m³ Konstancin-Jeziorna, 3 January: 7.2 µg/m³ Konstancin-Jeziorna, 4 January: 8.5 µg/m³ Konstancin-Jeziorna, 5 January: 29.9 µg/m³ Konstancin-Jeziorna, 6 January: 72.3 µg/m³, 4.0× its usual 18.3 Konstancin-Jeziorna, 7 January: no reading Konstancin-Jeziorna, 8 January: no reading Konstancin-Jeziorna, 9 January: 21.1 µg/m³ Toruń Toruń, 2 January: 7.3 µg/m³ Toruń, 3 January: 8.7 µg/m³ Toruń, 4 January: 9.7 µg/m³ Toruń, 5 January: 34.4 µg/m³ Toruń, 6 January: 72.1 µg/m³, 3.8× its usual 18.9 Toruń, 7 January: no reading Toruń, 8 January: no reading Toruń, 9 January: 29.8 µg/m³ Poznań Poznań, 2 January: 6.5 µg/m³ Poznań, 3 January: 7.6 µg/m³ Poznań, 4 January: 10.0 µg/m³ Poznań, 5 January: 26.7 µg/m³ Poznań, 6 January: 71.3 µg/m³, 3.9× its usual 18.2 Poznań, 7 January: no reading Poznań, 8 January: no reading Poznań, 9 January: 39.7 µg/m³ Warsaw Warsaw, 2 January: 7.4 µg/m³ Warsaw, 3 January: 7.0 µg/m³ Warsaw, 4 January: 8.0 µg/m³ Warsaw, 5 January: 24.9 µg/m³ Warsaw, 6 January: 70.8 µg/m³, 3.8× its usual 18.6 Warsaw, 7 January: no reading Warsaw, 8 January: no reading Warsaw, 9 January: 19.6 µg/m³ Opole Opole, 2 January: 4.3 µg/m³ Opole, 3 January: 7.7 µg/m³ Opole, 4 January: 9.3 µg/m³ Opole, 5 January: 43.7 µg/m³ Opole, 6 January: 70.0 µg/m³, 3.2× its usual 22.1 Opole, 7 January: no reading Opole, 8 January: no reading Opole, 9 January: 85.8 µg/m³ Jastrzębie Zdrój Jastrzębie Zdrój, 2 January: 7.6 µg/m³ Jastrzębie Zdrój, 3 January: 7.8 µg/m³ Jastrzębie Zdrój, 4 January: 10.3 µg/m³ Jastrzębie Zdrój, 5 January: 48.7 µg/m³ Jastrzębie Zdrój, 6 January: 69.5 µg/m³, 2.7× its usual 25.5 Jastrzębie Zdrój, 7 January: no reading Jastrzębie Zdrój, 8 January: no reading Jastrzębie Zdrój, 9 January: 50.5 µg/m³ Bydgoszcz Bydgoszcz, 2 January: 5.0 µg/m³ Bydgoszcz, 3 January: 4.8 µg/m³ Bydgoszcz, 4 January: 5.5 µg/m³ Bydgoszcz, 5 January: 21.6 µg/m³ Bydgoszcz, 6 January: 67.1 µg/m³, 4.6× its usual 14.6 Bydgoszcz, 7 January: no reading Bydgoszcz, 8 January: no reading Bydgoszcz, 9 January: 19.9 µg/m³ Elbląg Elbląg, 2 January: 6.6 µg/m³ Elbląg, 3 January: 7.0 µg/m³ Elbląg, 4 January: 7.9 µg/m³ Elbląg, 5 January: 23.0 µg/m³ Elbląg, 6 January: 66.1 µg/m³, 4.3× its usual 15.2 Elbląg, 7 January: no reading Elbląg, 8 January: no reading Elbląg, 9 January: 19.2 µg/m³ Płock Płock, 2 January: 6.8 µg/m³ Płock, 3 January: 7.2 µg/m³ Płock, 4 January: 7.8 µg/m³ Płock, 5 January: 25.3 µg/m³ Płock, 6 January: 63.6 µg/m³, 3.6× its usual 17.8 Płock, 7 January: no reading Płock, 8 January: no reading Płock, 9 January: 27.2 µg/m³ Kielce Kielce, 2 January: 7.2 µg/m³ Kielce, 3 January: 6.9 µg/m³ Kielce, 4 January: 11.0 µg/m³ Kielce, 5 January: 27.7 µg/m³ Kielce, 6 January: 62.6 µg/m³, 3.2× its usual 19.6 Kielce, 7 January: no reading Kielce, 8 January: no reading Kielce, 9 January: 32.9 µg/m³ Czechowice-Dziedzice Czechowice-Dziedzice, 2 January: 4.9 µg/m³ Czechowice-Dziedzice, 3 January: 5.4 µg/m³ Czechowice-Dziedzice, 4 January: 7.2 µg/m³ Czechowice-Dziedzice, 5 January: 28.4 µg/m³ Czechowice-Dziedzice, 6 January: 61.9 µg/m³, 3.2× its usual 19.6 Czechowice-Dziedzice, 7 January: no reading Czechowice-Dziedzice, 8 January: no reading Czechowice-Dziedzice, 9 January: 40.8 µg/m³ Łódź Łódź, 2 January: 9.8 µg/m³ Łódź, 3 January: 9.4 µg/m³ Łódź, 4 January: 10.9 µg/m³ Łódź, 5 January: 29.7 µg/m³ Łódź, 6 January: 56.8 µg/m³, 3.0× its usual 18.8 Łódź, 7 January: no reading Łódź, 8 January: no reading Łódź, 9 January: 31.0 µg/m³ Kraków Kraków, 2 January: 7.3 µg/m³ Kraków, 3 January: 7.0 µg/m³ Kraków, 4 January: 8.0 µg/m³ Kraków, 5 January: 24.5 µg/m³ Kraków, 6 January: 56.4 µg/m³, 2.2× its usual 25.8 Kraków, 7 January: no reading Kraków, 8 January: no reading Kraków, 9 January: 28.4 µg/m³ Nisko Nisko, 2 January: 13.8 µg/m³ Nisko, 3 January: 9.5 µg/m³ Nisko, 4 January: 12.8 µg/m³ Nisko, 5 January: 31.1 µg/m³ Nisko, 6 January: 52.1 µg/m³, 2.7× its usual 19.5 Nisko, 7 January: no reading Nisko, 8 January: no reading Nisko, 9 January: no reading Radom Radom, 2 January: 9.4 µg/m³ Radom, 3 January: 8.4 µg/m³ Radom, 4 January: 11.8 µg/m³ Radom, 5 January: 28.9 µg/m³ Radom, 6 January: 49.7 µg/m³, 2.3× its usual 21.5 Radom, 7 January: no reading Radom, 8 January: no reading Radom, 9 January: 33.4 µg/m³ Starachowice Starachowice, 2 January: 10.6 µg/m³ Starachowice, 3 January: 9.0 µg/m³ Starachowice, 4 January: 12.6 µg/m³ Starachowice, 5 January: 27.3 µg/m³ Starachowice, 6 January: 48.1 µg/m³, 2.2× its usual 21.4 Starachowice, 7 January: no reading Starachowice, 8 January: no reading Starachowice, 9 January: 34.4 µg/m³ Katowice Katowice, 2 January: 6.4 µg/m³ Katowice, 3 January: 6.4 µg/m³ Katowice, 4 January: 8.1 µg/m³ Katowice, 5 January: 23.8 µg/m³ Katowice, 6 January: 47.7 µg/m³, 2.0× its usual 23.5 Katowice, 7 January: no reading Katowice, 8 January: no reading Katowice, 9 January: 40.0 µg/m³ Rzeszów Rzeszów, 2 January: 13.9 µg/m³ Rzeszów, 3 January: 11.5 µg/m³ Rzeszów, 4 January: 16.9 µg/m³ Rzeszów, 5 January: 34.3 µg/m³ Rzeszów, 6 January: 45.5 µg/m³, 2.3× its usual 19.8 Rzeszów, 7 January: no reading Rzeszów, 8 January: no reading Rzeszów, 9 January: 43.0 µg/m³ Tarnów Tarnów, 2 January: 6.9 µg/m³ Tarnów, 3 January: 9.3 µg/m³ Tarnów, 4 January: 11.9 µg/m³ Tarnów, 5 January: 27.9 µg/m³ Tarnów, 6 January: 44.5 µg/m³, 2.6× its usual 17.0 Tarnów, 7 January: no reading Tarnów, 8 January: no reading Tarnów, 9 January: 68.3 µg/m³ Wrocław Wrocław, 2 January: 8.7 µg/m³ Wrocław, 3 January: 9.2 µg/m³ Wrocław, 4 January: 10.6 µg/m³ Wrocław, 5 January: 30.1 µg/m³ Wrocław, 6 January: 42.1 µg/m³, 2.3× its usual 18.7 Wrocław, 7 January: no reading Wrocław, 8 January: no reading Wrocław, 9 January: 74.0 µg/m³ Augustów Augustów, 2 January: 18.6 µg/m³ Augustów, 3 January: 19.6 µg/m³ Augustów, 4 January: 24.8 µg/m³ Augustów, 5 January: 38.4 µg/m³ Augustów, 6 January: 41.9 µg/m³, 2.0× its usual 20.8 Augustów, 7 January: no reading Augustów, 8 January: no reading Augustów, 9 January: 8.3 µg/m³ Kościerzyna Kościerzyna, 2 January: 5.4 µg/m³ Kościerzyna, 3 January: 6.8 µg/m³ Kościerzyna, 4 January: 10.0 µg/m³ Kościerzyna, 5 January: 15.2 µg/m³ Kościerzyna, 6 January: 38.4 µg/m³, 3.2× its usual 11.9 Kościerzyna, 7 January: no reading Kościerzyna, 8 January: no reading Kościerzyna, 9 January: 24.3 µg/m³ Jarosław Jarosław, 2 January: 12.0 µg/m³ Jarosław, 3 January: 12.0 µg/m³ Jarosław, 4 January: 11.9 µg/m³ Jarosław, 5 January: 22.3 µg/m³ Jarosław, 6 January: 38.0 µg/m³, 2.0× its usual 18.6 Jarosław, 7 January: no reading Jarosław, 8 January: no reading Jarosław, 9 January: 32.8 µg/m³ Gdańsk Gdańsk, 2 January: 5.5 µg/m³ Gdańsk, 3 January: 5.0 µg/m³ Gdańsk, 4 January: 6.7 µg/m³ Gdańsk, 5 January: 16.1 µg/m³ Gdańsk, 6 January: 35.9 µg/m³, 3.1× its usual 11.7 Gdańsk, 7 January: no reading Gdańsk, 8 January: no reading Gdańsk, 9 January: 11.4 µg/m³ Gdynia Gdynia, 2 January: no reading Gdynia, 3 January: 7.0 µg/m³ Gdynia, 4 January: 8.4 µg/m³ Gdynia, 5 January: 18.8 µg/m³ Gdynia, 6 January: 31.4 µg/m³, 2.5× its usual 12.5 Gdynia, 7 January: no reading Gdynia, 8 January: no reading Gdynia, 9 January: no reading Ełk Ełk, 2 January: 8.5 µg/m³ Ełk, 3 January: 8.8 µg/m³ Ełk, 4 January: 8.8 µg/m³ Ełk, 5 January: 26.5 µg/m³ Ełk, 6 January: 27.1 µg/m³, 2.0× its usual 13.5 Ełk, 7 January: no reading Ełk, 8 January: no reading Ełk, 9 January: 6.4 µg/m³ Żary Żary, 2 January: 13.6 µg/m³ Żary, 3 January: 7.2 µg/m³ Żary, 4 January: 7.7 µg/m³ Żary, 5 January: 16.2 µg/m³ Żary, 6 January: 25.8 µg/m³, 2.2× its usual 11.7 Żary, 7 January: no reading Żary, 8 January: no reading Żary, 9 January: 62.7 µg/m³ 2 Jan 3 4 5 6 7 8 9 Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Łask Łódź Voivodeship, Poland 1 6 January 23.7 5.7× Radomsko Łódź Voivodeship, Poland 2 6 January 22.5 5.6× Kłodzko Lower Silesia, Poland 2 6 January 21.6 5.6× Kalisz Greater Poland, Poland 2 6 January 20.4 5.5× Żyrardów Mazovia, Poland 1 6 January 20.8 4.7× Bydgoszcz Kujawsko-Pomorskie, Poland 1 6 January 14.6 4.6× Kutno Łódź Voivodeship, Poland 2 6 January 22.2 4.5× Włocławek Kujawsko-Pomorskie, Poland 1 6 January 23.2 4.4× Elbląg Warmia-Masuria, Poland 1 6 January 15.2 4.3× Zgierz Łódź Voivodeship, Poland 1 6 January 29.2 4.1× Ciechanów Mazovia, Poland 1 6 January 20.3 4.1× Wawer Mazovia, Poland 1 6 January 19.2 4.0× Konstancin-Jeziorna Mazovia, Poland 1 6 January 18.3 4.0× Poznań Greater Poland, Poland 1 6 January 18.2 3.9× Jelenia Góra Lower Silesia, Poland 2 6 January 16.6 3.9× Toruń Kujawsko-Pomorskie, Poland 1 6 January 18.9 3.8× Warsaw Mazovia, Poland 1 6 January 18.6 3.8× Pruszków Mazovia, Poland 1 6 January 19.9 3.7× Płock Mazovia, Poland 1 6 January 17.8 3.6× Gorzów Wielkopolski Lubusz, Poland 2 6 January 15.0 3.6× Legionowo Mazovia, Poland 2 6 January 20.0 3.4× Otwock Mazovia, Poland 2 6 January 25.4 3.3× Opole Opole Voivodeship, Poland 1 6 January 22.1 3.2× Kielce Świętokrzyskie, Poland 1 6 January 19.6 3.2× Czechowice-Dziedzice Silesia, Poland 1 6 January 19.6 3.2× Kościerzyna Pomerania, Poland 1 6 January 11.9 3.2× Gdańsk Pomerania, Poland 1 6 January 11.7 3.1× Łódź Łódź Voivodeship, Poland 1 6 January 18.8 3.0× Jastrzębie Zdrój Silesia, Poland 1 6 January 25.5 2.7× Nisko Subcarpathia, Poland 1 6 January 19.5 2.7× Tarnów Lesser Poland, Poland 1 6 January 17.0 2.6× Gdynia Pomerania, Poland 1 6 January 12.5 2.5× Suwałki Podlasie, Poland 1 5 January 12.9 2.4× Radom Mazovia, Poland 1 6 January 21.5 2.3× Rzeszów Subcarpathia, Poland 1 6 January 19.8 2.3× Kędzierzyn-Koźle Opole Voivodeship, Poland 2 6 January 18.5 2.3× Wrocław Lower Silesia, Poland 1 6 January 18.7 2.3× Żywiec Silesia, Poland 2 5 January 34.5 2.2× Kraków Lesser Poland, Poland 1 6 January 25.8 2.2× Starachowice Świętokrzyskie, Poland 1 6 January 21.4 2.2× Żary Lubusz, Poland 1 6 January 11.7 2.2× Katowice Silesia, Poland 1 6 January 23.5 2.0× Augustów Podlasie, Poland 1 6 January 20.8 2.0× Jarosław Subcarpathia, Poland 1 6 January 18.6 2.0× Ełk Warmia-Masuria, Poland 1 6 January 13.5 2.0×
Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.
Against other episodes in Poland
Number 13 of 36 episodes in Poland since our records began, by cities reached.
Eastern Europe, October and November 2024 141 Europe, 22 to 23 January 2025 123 Eastern Europe, December 2025 118 Europe, 8 to 10 November 2025 73 Eastern Europe, January 2026 70 Eastern Europe, March 2023 59 Germany, Poland and Czechia, February 2026 54 North-eastern Europe, December 2025 54 Eastern Europe, 30 November to 8 December 2024 53 Eastern Europe, September 2023 53 Poland, September 2024 51 Europe, 28 to 31 January 2024 50 Poland, January 2026 45 Bars: cities reached; colour: the level of the episode's highest daily reading. All 36 .
Use this page SmogRank, Poland, January 2026: 45 cities with PM2.5 at twice their usual or more, 5 to 6 January 2026, smogrank.com/episodes/2026-01-poland (accessed 4 October 2026).
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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms .
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes . Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.
