SmogRank / Episodes / Spain
Spain, France and Portugal, January and February 2024
For 7 days, from 27 January to 2 February 2024, 33 cities in Spain, France and Portugal had PM2.5 at least twice their usual for the time of year. The worst reading was Paredes, Porto, Portugal: 43.7 µg/m³ on 30 January, about 3.5× its usual 12.4.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 33 in 3 countries
Days 7 27 January to 2 February 2024
Worst day 1 February 15 cities counted
Furthest above usual 5.9× Tolosa
Day by day
Play 1 February 15 cities at twice their usual or more
Algete Torrejón de Ardoz Alcalá de Henares Coslada Azuqueca de Henares Madrid Valdemoro Fuenlabrada Móstoles Collado-Villalba Toledo Medina del Campo Valladolid Burgos Palencia Puertollano Logroño Albacete Salamanca Tudela Gasteiz / Vitoria Santurtzi Zaragoza Jaén Bermeo Córdoba Zarautz Oria Hernani Donostia / San Sebastián Villena Onda Sagunto Ontinyent Grao de Murviedro Molina de Segura Elda Granada Lorca Burriana Castelló de la Plana Anglet Benicàssim Alicante Avilés Alcalá de Guadaira Sevilla Vila Real Mont-de-Marsan Salou Ourense Lugo Huelva Lalín Viveiro les Escaldes Teo Narón Santiago de Compostela Culleredo Arteixo Toulouse Manlleu Montauban Lisbon Corroios Cacém Palma Marratxí Girona Castres Perpignan Mollet del Vallès Bailén Lleida Tarragona Cuenca Gijón Murcia Amora Sama Tarbes Barrio de Peral Vilanova i la Geltrú León Amorebieta Oviedo A Coruña Cartagena Barcelona Calahorra Paredes Vigo Ciudad Real Ferrol Bilbao Lourdes Pau Torrevieja Laudio / Llodio Valencia Durango Getxo Pontevedra Tolosa 24 Jan 25 26 27 28 29 30 31 1 Feb 2 3 4 5 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
Barcelona Barcelona, 24 January: 25.0 µg/m³ Barcelona, 25 January: 32.9 µg/m³ Barcelona, 26 January: 31.8 µg/m³ Barcelona, 27 January: 37.0 µg/m³, 3.4× its usual 10.8 Barcelona, 28 January: 21.9 µg/m³ Barcelona, 29 January: 12.2 µg/m³ Barcelona, 30 January: 11.5 µg/m³ Barcelona, 31 January: 16.0 µg/m³ Barcelona, 1 February: 26.7 µg/m³, 2.3× its usual 11.5 Barcelona, 2 February: 26.7 µg/m³ Barcelona, 3 February: 20.2 µg/m³ Barcelona, 4 February: 19.8 µg/m³ Barcelona, 5 February: 22.5 µg/m³ Murcia Murcia, 24 January: 20.9 µg/m³ Murcia, 25 January: 21.8 µg/m³ Murcia, 26 January: 25.2 µg/m³ Murcia, 27 January: 35.5 µg/m³, 2.5× its usual 14.3 Murcia, 28 January: 23.6 µg/m³ Murcia, 29 January: 17.5 µg/m³ Murcia, 30 January: 21.0 µg/m³ Murcia, 31 January: 16.9 µg/m³ Murcia, 1 February: 21.5 µg/m³ Murcia, 2 February: 26.3 µg/m³ Murcia, 3 February: 28.6 µg/m³ Murcia, 4 February: 20.8 µg/m³ Murcia, 5 February: 21.4 µg/m³ Lleida Lleida, 24 January: 49.5 µg/m³ Lleida, 25 January: 37.0 µg/m³ Lleida, 26 January: 25.6 µg/m³ Lleida, 27 January: 32.7 µg/m³, 2.1× its usual 15.8 Lleida, 28 January: 32.1 µg/m³, 2.2× its usual 14.7 Lleida, 29 January: 16.0 µg/m³ Lleida, 30 January: 26.2 µg/m³ Lleida, 31 January: 32.7 µg/m³ Lleida, 1 February: no reading Lleida, 2 February: 38.0 µg/m³ Lleida, 3 February: 29.5 µg/m³ Lleida, 4 February: 24.6 µg/m³ Lleida, 5 February: 21.3 µg/m³ Valencia Valencia, 24 January: 14.0 µg/m³ Valencia, 25 January: 25.7 µg/m³ Valencia, 26 January: 20.8 µg/m³ Valencia, 27 January: 31.1 µg/m³, 4.3× its usual 7.3 Valencia, 28 January: 32.6 µg/m³, 4.5× its usual 7.3 Valencia, 29 January: 19.2 µg/m³ Valencia, 30 January: 21.4 µg/m³ Valencia, 31 January: 19.6 µg/m³ Valencia, 1 February: 21.7 µg/m³ Valencia, 2 February: 20.2 µg/m³ Valencia, 3 February: 19.7 µg/m³ Valencia, 4 February: 17.3 µg/m³ Valencia, 5 February: no reading Torrevieja Torrevieja, 24 January: 15.8 µg/m³ Torrevieja, 25 January: 11.5 µg/m³ Torrevieja, 26 January: 22.7 µg/m³ Torrevieja, 27 January: 31.1 µg/m³, 4.1× its usual 7.5 Torrevieja, 28 January: 16.4 µg/m³ Torrevieja, 29 January: 9.3 µg/m³ Torrevieja, 30 January: 8.5 µg/m³ Torrevieja, 31 January: 7.2 µg/m³ Torrevieja, 1 February: 10.9 µg/m³ Torrevieja, 2 February: 21.8 µg/m³ Torrevieja, 3 February: 21.0 µg/m³ Torrevieja, 4 February: 14.3 µg/m³ Torrevieja, 5 February: no reading Cartagena Cartagena, 24 January: 15.0 µg/m³ Cartagena, 25 January: 11.0 µg/m³ Cartagena, 26 January: 19.1 µg/m³ Cartagena, 27 January: 31.1 µg/m³, 3.4× its usual 9.2 Cartagena, 28 January: 15.0 µg/m³ Cartagena, 29 January: 12.2 µg/m³ Cartagena, 30 January: 13.4 µg/m³ Cartagena, 31 January: 9.3 µg/m³ Cartagena, 1 February: 11.2 µg/m³ Cartagena, 2 February: 17.0 µg/m³ Cartagena, 3 February: 15.8 µg/m³ Cartagena, 4 February: 12.3 µg/m³ Cartagena, 5 February: 15.1 µg/m³ Tarbes Tarbes, 24 January: 17.4 µg/m³ Tarbes, 25 January: 17.8 µg/m³ Tarbes, 26 January: 22.5 µg/m³ Tarbes, 27 January: 28.8 µg/m³, 2.4× its usual 12.1 Tarbes, 28 January: 22.2 µg/m³ Tarbes, 29 January: 28.1 µg/m³ Tarbes, 30 January: 33.4 µg/m³ Tarbes, 31 January: 30.7 µg/m³ Tarbes, 1 February: 33.7 µg/m³, 2.8× its usual 12.2 Tarbes, 2 February: 19.4 µg/m³ Tarbes, 3 February: 18.7 µg/m³ Tarbes, 4 February: 27.0 µg/m³ Tarbes, 5 February: 19.3 µg/m³ Vilanova i la Geltrú Vilanova i la Geltrú, 24 January: 16.0 µg/m³ Vilanova i la Geltrú, 25 January: 21.3 µg/m³ Vilanova i la Geltrú, 26 January: 15.2 µg/m³ Vilanova i la Geltrú, 27 January: 28.7 µg/m³, 2.9× its usual 9.8 Vilanova i la Geltrú, 28 January: 25.3 µg/m³, 2.6× its usual 9.8 Vilanova i la Geltrú, 29 January: 13.6 µg/m³ Vilanova i la Geltrú, 30 January: 13.0 µg/m³ Vilanova i la Geltrú, 31 January: 15.2 µg/m³ Vilanova i la Geltrú, 1 February: no reading Vilanova i la Geltrú, 2 February: 19.8 µg/m³ Vilanova i la Geltrú, 3 February: 15.7 µg/m³ Vilanova i la Geltrú, 4 February: 15.5 µg/m³ Vilanova i la Geltrú, 5 February: 14.8 µg/m³ Ciudad Real Ciudad Real, 24 January: 13.0 µg/m³ Ciudad Real, 25 January: 20.4 µg/m³ Ciudad Real, 26 January: 26.8 µg/m³ Ciudad Real, 27 January: 27.7 µg/m³, 3.9× its usual 7.1 Ciudad Real, 28 January: 23.8 µg/m³ Ciudad Real, 29 January: 16.8 µg/m³ Ciudad Real, 30 January: 15.1 µg/m³ Ciudad Real, 31 January: 13.7 µg/m³ Ciudad Real, 1 February: 19.9 µg/m³ Ciudad Real, 2 February: 26.0 µg/m³ Ciudad Real, 3 February: 18.1 µg/m³ Ciudad Real, 4 February: 21.5 µg/m³ Ciudad Real, 5 February: 17.4 µg/m³ Barrio de Peral Barrio de Peral, 24 January: 11.5 µg/m³ Barrio de Peral, 25 January: 9.2 µg/m³ Barrio de Peral, 26 January: 20.7 µg/m³ Barrio de Peral, 27 January: 26.3 µg/m³, 2.9× its usual 9.1 Barrio de Peral, 28 January: 14.4 µg/m³ Barrio de Peral, 29 January: 11.5 µg/m³ Barrio de Peral, 30 January: 15.3 µg/m³ Barrio de Peral, 31 January: 9.5 µg/m³ Barrio de Peral, 1 February: 13.6 µg/m³ Barrio de Peral, 2 February: 17.8 µg/m³ Barrio de Peral, 3 February: 15.4 µg/m³ Barrio de Peral, 4 February: 12.7 µg/m³ Barrio de Peral, 5 February: 12.2 µg/m³ Tarragona Tarragona, 24 January: 17.9 µg/m³ Tarragona, 25 January: 28.4 µg/m³ Tarragona, 26 January: 16.3 µg/m³ Tarragona, 27 January: 25.2 µg/m³, 2.4× its usual 10.4 Tarragona, 28 January: 23.1 µg/m³ Tarragona, 29 January: 12.6 µg/m³ Tarragona, 30 January: 11.4 µg/m³ Tarragona, 31 January: 17.3 µg/m³ Tarragona, 1 February: no reading Tarragona, 2 February: 16.8 µg/m³ Tarragona, 3 February: 16.9 µg/m³ Tarragona, 4 February: 13.5 µg/m³ Tarragona, 5 February: 15.3 µg/m³ Mollet del Vallès Mollet del Vallès, 24 January: 35.9 µg/m³ Mollet del Vallès, 25 January: 40.0 µg/m³ Mollet del Vallès, 26 January: 28.5 µg/m³ Mollet del Vallès, 27 January: 37.4 µg/m³ Mollet del Vallès, 28 January: 41.1 µg/m³, 2.0× its usual 20.5 Mollet del Vallès, 29 January: 22.3 µg/m³ Mollet del Vallès, 30 January: 22.0 µg/m³ Mollet del Vallès, 31 January: 24.9 µg/m³ Mollet del Vallès, 1 February: no reading Mollet del Vallès, 2 February: 34.2 µg/m³ Mollet del Vallès, 3 February: 28.5 µg/m³ Mollet del Vallès, 4 February: 26.2 µg/m³ Mollet del Vallès, 5 February: 26.3 µg/m³ Bailén Bailén, 24 January: 18.8 µg/m³ Bailén, 25 January: 23.4 µg/m³ Bailén, 26 January: 27.1 µg/m³ Bailén, 27 January: 24.7 µg/m³ Bailén, 28 January: 28.3 µg/m³, 2.1× its usual 13.6 Bailén, 29 January: 29.5 µg/m³ Bailén, 30 January: 27.0 µg/m³ Bailén, 31 January: 18.6 µg/m³ Bailén, 1 February: 18.5 µg/m³ Bailén, 2 February: no reading Bailén, 3 February: 22.8 µg/m³ Bailén, 4 February: 34.7 µg/m³ Bailén, 5 February: 31.0 µg/m³ Calahorra Calahorra, 24 January: 8.0 µg/m³ Calahorra, 25 January: 7.8 µg/m³ Calahorra, 26 January: 6.3 µg/m³ Calahorra, 27 January: 23.8 µg/m³ Calahorra, 28 January: 27.3 µg/m³, 3.5× its usual 7.8 Calahorra, 29 January: 18.5 µg/m³ Calahorra, 30 January: 15.7 µg/m³ Calahorra, 31 January: 13.7 µg/m³ Calahorra, 1 February: 14.9 µg/m³ Calahorra, 2 February: 7.4 µg/m³ Calahorra, 3 February: 8.0 µg/m³ Calahorra, 4 February: 11.3 µg/m³ Calahorra, 5 February: 12.6 µg/m³ Paredes Paredes, 24 January: 13.4 µg/m³ Paredes, 25 January: 12.7 µg/m³ Paredes, 26 January: 18.3 µg/m³ Paredes, 27 January: 23.2 µg/m³ Paredes, 28 January: 27.4 µg/m³ Paredes, 29 January: 34.2 µg/m³, 2.8× its usual 12.4 Paredes, 30 January: 43.7 µg/m³, 3.5× its usual 12.4 Paredes, 31 January: 29.3 µg/m³, 2.4× its usual 12.4 Paredes, 1 February: no reading Paredes, 2 February: 29.9 µg/m³, 2.4× its usual 12.4 Paredes, 3 February: 18.9 µg/m³ Paredes, 4 February: 34.1 µg/m³ Paredes, 5 February: 43.6 µg/m³ Oviedo Oviedo, 24 January: 15.4 µg/m³ Oviedo, 25 January: 18.2 µg/m³ Oviedo, 26 January: 21.0 µg/m³ Oviedo, 27 January: 24.6 µg/m³ Oviedo, 28 January: 23.0 µg/m³ Oviedo, 29 January: 34.0 µg/m³, 3.1× its usual 10.8 Oviedo, 30 January: 24.0 µg/m³ Oviedo, 31 January: 22.8 µg/m³ Oviedo, 1 February: 19.8 µg/m³ Oviedo, 2 February: 15.1 µg/m³ Oviedo, 3 February: 17.3 µg/m³ Oviedo, 4 February: 19.6 µg/m³ Oviedo, 5 February: 24.0 µg/m³ Sama Sama, 24 January: no reading Sama, 25 January: 15.6 µg/m³ Sama, 26 January: 16.3 µg/m³ Sama, 27 January: 17.8 µg/m³ Sama, 28 January: 13.9 µg/m³ Sama, 29 January: 27.4 µg/m³, 2.6× its usual 10.7 Sama, 30 January: 21.1 µg/m³ Sama, 31 January: 20.4 µg/m³ Sama, 1 February: 22.6 µg/m³ Sama, 2 February: 15.8 µg/m³ Sama, 3 February: 23.7 µg/m³ Sama, 4 February: 20.7 µg/m³ Sama, 5 February: 22.4 µg/m³ Gijón Gijón, 24 January: 18.0 µg/m³ Gijón, 25 January: 15.9 µg/m³ Gijón, 26 January: 16.4 µg/m³ Gijón, 27 January: 23.0 µg/m³ Gijón, 28 January: 22.0 µg/m³ Gijón, 29 January: 26.9 µg/m³, 2.4× its usual 11.4 Gijón, 30 January: 23.3 µg/m³ Gijón, 31 January: 27.8 µg/m³, 2.4× its usual 11.4 Gijón, 1 February: 26.8 µg/m³, 2.4× its usual 11.4 Gijón, 2 February: 11.3 µg/m³ Gijón, 3 February: 11.2 µg/m³ Gijón, 4 February: 20.9 µg/m³ Gijón, 5 February: 22.5 µg/m³ Vigo Vigo, 24 January: 22.6 µg/m³ Vigo, 25 January: 31.2 µg/m³ Vigo, 26 January: 33.8 µg/m³ Vigo, 27 January: 28.4 µg/m³ Vigo, 28 January: 24.2 µg/m³ Vigo, 29 January: 21.2 µg/m³ Vigo, 30 January: 30.5 µg/m³, 2.7× its usual 11.4 Vigo, 31 January: 32.3 µg/m³, 2.8× its usual 11.5 Vigo, 1 February: 32.7 µg/m³, 2.8× its usual 11.5 Vigo, 2 February: 41.7 µg/m³, 3.6× its usual 11.6 Vigo, 3 February: 26.6 µg/m³ Vigo, 4 February: 30.4 µg/m³ Vigo, 5 February: 36.7 µg/m³ A Coruña A Coruña, 24 January: 11.1 µg/m³ A Coruña, 25 January: 15.0 µg/m³ A Coruña, 26 January: 19.8 µg/m³ A Coruña, 27 January: 16.5 µg/m³ A Coruña, 28 January: 15.9 µg/m³ A Coruña, 29 January: 14.5 µg/m³ A Coruña, 30 January: 28.0 µg/m³, 3.3× its usual 8.4 A Coruña, 31 January: 27.3 µg/m³, 3.3× its usual 8.3 A Coruña, 1 February: 23.8 µg/m³ A Coruña, 2 February: 16.2 µg/m³ A Coruña, 3 February: 14.2 µg/m³ A Coruña, 4 February: 22.0 µg/m³ A Coruña, 5 February: 23.9 µg/m³ Ferrol Ferrol, 24 January: 7.1 µg/m³ Ferrol, 25 January: 14.2 µg/m³ Ferrol, 26 January: 15.4 µg/m³ Ferrol, 27 January: 21.3 µg/m³ Ferrol, 28 January: 14.8 µg/m³ Ferrol, 29 January: 12.0 µg/m³ Ferrol, 30 January: 26.1 µg/m³, 4.0× its usual 6.5 Ferrol, 31 January: 20.5 µg/m³ Ferrol, 1 February: no reading Ferrol, 2 February: 10.8 µg/m³ Ferrol, 3 February: 14.6 µg/m³ Ferrol, 4 February: 19.7 µg/m³ Ferrol, 5 February: 23.5 µg/m³ Pau Pau, 24 January: 7.1 µg/m³ Pau, 25 January: 13.1 µg/m³ Pau, 26 January: 18.2 µg/m³ Pau, 27 January: 17.4 µg/m³ Pau, 28 January: 10.2 µg/m³ Pau, 29 January: 11.9 µg/m³ Pau, 30 January: 18.1 µg/m³ Pau, 31 January: 27.8 µg/m³ Pau, 1 February: 36.7 µg/m³, 4.0× its usual 9.1 Pau, 2 February: 25.5 µg/m³ Pau, 3 February: 16.3 µg/m³ Pau, 4 February: 23.2 µg/m³ Pau, 5 February: 18.4 µg/m³ Durango Durango, 24 January: 14.8 µg/m³ Durango, 25 January: 19.8 µg/m³ Durango, 26 January: 24.3 µg/m³ Durango, 27 January: 17.3 µg/m³ Durango, 28 January: 11.0 µg/m³ Durango, 29 January: 13.2 µg/m³ Durango, 30 January: 17.5 µg/m³ Durango, 31 January: 23.1 µg/m³ Durango, 1 February: 33.8 µg/m³, 4.5× its usual 7.5 Durango, 2 February: 17.5 µg/m³ Durango, 3 February: 13.1 µg/m³ Durango, 4 February: 21.8 µg/m³ Durango, 5 February: no reading Lourdes Lourdes, 24 January: 15.1 µg/m³ Lourdes, 25 January: 14.4 µg/m³ Lourdes, 26 January: 17.7 µg/m³ Lourdes, 27 January: 23.7 µg/m³ Lourdes, 28 January: 13.0 µg/m³ Lourdes, 29 January: 16.1 µg/m³ Lourdes, 30 January: 24.4 µg/m³ Lourdes, 31 January: 30.7 µg/m³ Lourdes, 1 February: 33.6 µg/m³, 4.0× its usual 8.4 Lourdes, 2 February: 25.6 µg/m³ Lourdes, 3 February: 27.7 µg/m³ Lourdes, 4 February: 25.5 µg/m³ Lourdes, 5 February: 21.8 µg/m³ Laudio / Llodio Laudio / Llodio, 24 January: 11.7 µg/m³ Laudio / Llodio, 25 January: 16.7 µg/m³ Laudio / Llodio, 26 January: 23.1 µg/m³ Laudio / Llodio, 27 January: 17.8 µg/m³ Laudio / Llodio, 28 January: 14.5 µg/m³ Laudio / Llodio, 29 January: 13.7 µg/m³ Laudio / Llodio, 30 January: 15.1 µg/m³ Laudio / Llodio, 31 January: 20.5 µg/m³ Laudio / Llodio, 1 February: 30.6 µg/m³, 4.2× its usual 7.3 Laudio / Llodio, 2 February: 13.3 µg/m³ Laudio / Llodio, 3 February: 11.6 µg/m³ Laudio / Llodio, 4 February: 20.4 µg/m³ Laudio / Llodio, 5 February: no reading León León, 24 January: 15.4 µg/m³ León, 25 January: 18.6 µg/m³ León, 26 January: 22.3 µg/m³ León, 27 January: 17.8 µg/m³ León, 28 January: 16.9 µg/m³ León, 29 January: 21.6 µg/m³ León, 30 January: 16.5 µg/m³ León, 31 January: 23.5 µg/m³ León, 1 February: 30.3 µg/m³, 2.8× its usual 10.8 León, 2 February: 31.1 µg/m³, 2.9× its usual 10.8 León, 3 February: 14.9 µg/m³ León, 4 February: 15.5 µg/m³ León, 5 February: 19.3 µg/m³ Tolosa Tolosa, 24 January: no reading Tolosa, 25 January: no reading Tolosa, 26 January: no reading Tolosa, 27 January: no reading Tolosa, 28 January: no reading Tolosa, 29 January: no reading Tolosa, 30 January: no reading Tolosa, 31 January: no reading Tolosa, 1 February: 29.7 µg/m³, 5.9× its usual 4.2 Tolosa, 2 February: no reading Tolosa, 3 February: no reading Tolosa, 4 February: no reading Tolosa, 5 February: no reading Amorebieta Amorebieta, 24 January: no reading Amorebieta, 25 January: no reading Amorebieta, 26 January: no reading Amorebieta, 27 January: no reading Amorebieta, 28 January: no reading Amorebieta, 29 January: 13.1 µg/m³ Amorebieta, 30 January: 14.8 µg/m³ Amorebieta, 31 January: 23.3 µg/m³ Amorebieta, 1 February: 28.6 µg/m³, 3.0× its usual 9.6 Amorebieta, 2 February: 12.5 µg/m³ Amorebieta, 3 February: 12.2 µg/m³ Amorebieta, 4 February: 17.8 µg/m³ Amorebieta, 5 February: no reading Pontevedra Pontevedra, 24 January: no reading Pontevedra, 25 January: no reading Pontevedra, 26 January: no reading Pontevedra, 27 January: no reading Pontevedra, 28 January: no reading Pontevedra, 29 January: 19.0 µg/m³ Pontevedra, 30 January: 20.7 µg/m³ Pontevedra, 31 January: 23.7 µg/m³ Pontevedra, 1 February: 26.4 µg/m³, 4.5× its usual 5.9 Pontevedra, 2 February: 33.0 µg/m³, 5.7× its usual 5.8 Pontevedra, 3 February: 18.3 µg/m³ Pontevedra, 4 February: 20.5 µg/m³ Pontevedra, 5 February: 25.2 µg/m³ Bilbao Bilbao, 24 January: 13.0 µg/m³ Bilbao, 25 January: 16.4 µg/m³ Bilbao, 26 January: 25.5 µg/m³ Bilbao, 27 January: 17.6 µg/m³ Bilbao, 28 January: 10.3 µg/m³ Bilbao, 29 January: 10.7 µg/m³ Bilbao, 30 January: 14.0 µg/m³ Bilbao, 31 January: 18.6 µg/m³ Bilbao, 1 February: 26.3 µg/m³, 4.0× its usual 6.6 Bilbao, 2 February: 12.2 µg/m³ Bilbao, 3 February: 12.4 µg/m³ Bilbao, 4 February: 23.0 µg/m³ Bilbao, 5 February: no reading Cuenca Cuenca, 24 January: 23.7 µg/m³ Cuenca, 25 January: 22.5 µg/m³ Cuenca, 26 January: 22.7 µg/m³ Cuenca, 27 January: 17.3 µg/m³ Cuenca, 28 January: 14.5 µg/m³ Cuenca, 29 January: 18.4 µg/m³ Cuenca, 30 January: 12.2 µg/m³ Cuenca, 31 January: 15.9 µg/m³ Cuenca, 1 February: 26.2 µg/m³, 2.4× its usual 10.8 Cuenca, 2 February: 27.5 µg/m³ Cuenca, 3 February: 19.0 µg/m³ Cuenca, 4 February: 17.6 µg/m³ Cuenca, 5 February: 20.8 µg/m³ Getxo Getxo, 24 January: no reading Getxo, 25 January: no reading Getxo, 26 January: no reading Getxo, 27 January: no reading Getxo, 28 January: no reading Getxo, 29 January: 11.8 µg/m³ Getxo, 30 January: 11.6 µg/m³ Getxo, 31 January: 16.2 µg/m³ Getxo, 1 February: 25.7 µg/m³, 4.6× its usual 5.6 Getxo, 2 February: 8.2 µg/m³ Getxo, 3 February: 7.7 µg/m³ Getxo, 4 February: 18.8 µg/m³ Getxo, 5 February: no reading Amora Amora, 24 January: 12.1 µg/m³ Amora, 25 January: 18.2 µg/m³ Amora, 26 January: 21.6 µg/m³ Amora, 27 January: 19.7 µg/m³ Amora, 28 January: 18.2 µg/m³ Amora, 29 January: 17.7 µg/m³ Amora, 30 January: 15.0 µg/m³ Amora, 31 January: 15.5 µg/m³ Amora, 1 February: 19.8 µg/m³ Amora, 2 February: 26.5 µg/m³, 2.6× its usual 10.1 Amora, 3 February: 26.3 µg/m³ Amora, 4 February: 27.0 µg/m³ Amora, 5 February: 28.5 µg/m³ 24 Jan 26 28 30 1 Feb 3 5 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
Tolosa Basque Country, Spain 1 1 February 4.2 5.9× Pontevedra Galicia, Spain 2 2 February 5.8 5.7× Getxo Basque Country, Spain 1 1 February 5.6 4.6× Durango Basque Country, Spain 1 1 February 7.5 4.5× Valencia Valencia, Spain 2 28 January 7.3 4.5× Laudio / Llodio Basque Country, Spain 1 1 February 7.3 4.2× Torrevieja Valencia, Spain 1 27 January 7.5 4.1× Pau New Aquitaine, France 1 1 February 9.1 4.0× Lourdes Occitanie, France 1 1 February 8.4 4.0× Bilbao Basque Country, Spain 1 1 February 6.6 4.0× Ferrol Galicia, Spain 1 30 January 6.5 4.0× Ciudad Real Castille-La Mancha, Spain 1 27 January 7.1 3.9× Vigo Galicia, Spain 4 2 February 11.6 3.6× Paredes Porto, Portugal 4 30 January 12.4 3.5× Calahorra La Rioja, Spain 1 28 January 7.8 3.5× Barcelona Catalonia, Spain 2 27 January 10.8 3.4× Cartagena Murcia, Spain 1 27 January 9.2 3.4× A Coruña Galicia, Spain 2 30 January 8.4 3.3× Oviedo Asturias, Spain 1 29 January 10.8 3.1× Amorebieta Basque Country, Spain 1 1 February 9.6 3.0× León Castille and León, Spain 2 2 February 10.8 2.9× Vilanova i la Geltrú Catalonia, Spain 2 27 January 9.8 2.9× Barrio de Peral Murcia, Spain 1 27 January 9.1 2.9× Tarbes Occitanie, France 2 1 February 12.2 2.8× Sama Asturias, Spain 1 29 January 10.7 2.6× Amora Setúbal, Portugal 1 2 February 10.1 2.6× Murcia Murcia, Spain 1 27 January 14.3 2.5× Gijón Asturias, Spain 3 31 January 11.4 2.4× Cuenca Castille-La Mancha, Spain 1 1 February 10.8 2.4× Tarragona Catalonia, Spain 1 27 January 10.4 2.4× Lleida Catalonia, Spain 2 27 January 15.8 2.1× Bailén Andalusia, Spain 1 28 January 13.6 2.1× Mollet del Vallès Catalonia, Spain 1 28 January 20.5 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 Spain and France
Number 14 of 58 episodes in Spain and France since our records began, by cities reached.
Europe, 28 February to 4 March 2023 279 Europe, December 2025 to January 2026 169 Europe, March 2023 121 Western Europe, January 2024 117 Western Europe, December 2024 75 Spain, France and Portugal, February 2023 72 France, The Netherlands and United Kingdom, January 2023 66 Europe, June 2025 65 Spain, Portugal and Andorra, August 2025 44 Spain, France and 2 more countries, December 2023 to January 2024 44 France, Belgium and 2 more countries, November and December 2023 43 Southern Europe, February 2024 38 Spain, France and Portugal, January and February 2024 33 Bars: cities reached; colour: the level of the episode's highest daily reading. All 58 .
Use this page SmogRank, Spain, France and Portugal, January and February 2024: 33 cities with PM2.5 at twice their usual or more, 27 January to 2 February 2024, smogrank.com/episodes/2024-01-spain-france-and-portugal (accessed 4 October 2026).
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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.
