SmogRank / Episodes / Spain

North-eastern Spain, July 2026

For 1 day, on 28 July 2026, 13 cities in Spain had PM2.5 at least twice their usual for the time of year. The worst reading was Villa del Prado, Madrid, Spain: 57.4 µg/m³ on 28 July, about 6.6× its usual 8.7. Readings stopped after 28 July, so this episode may have run longer.

Likely smoke from firesFires were detected within 300 km of the city on 69% of the counted city-days. Satellites see crop, field and forest fires alike, so this doesn't say which burned.
Cities reached13in 1 country
Days128 July 2026
Worst day28 July13 cities counted
Furthest above usual6.6×Villa del Prado

Day by day

28 July 13 cities at twice their usual or more
BailénJaénValdemoroFuenlabradaMóstolesVillarejo de SalvanésGranadaMadridCosladaTorrejón de ArdozAlcalá de HenaresCollado-VillalbaAlgeteCampillosSan IldefonsoCártamaAlmeríaPrado del ReySalamancaCartagenaSantiago do CacémSinesParedesPortoSalouBarrio de PeralEl PlanMolina de SeguraManzanaresMurciaAlcantarillaLorcaSevillaJumillaAlcalá de GuadairaCaravacaHuelvaVilla del Prado
25 Jul262728293031
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

Villa del PradoVilla del Prado, 25 July: no readingVilla del Prado, 26 July: 95.5 µg/m³Villa del Prado, 27 July: no readingVilla del Prado, 28 July: 57.4 µg/m³, 6.6× its usual 8.7Villa del Prado, 29 July: no readingVilla del Prado, 30 July: no readingVilla del Prado, 31 July: no readingAlcalá de GuadairaAlcalá de Guadaira, 25 July: no readingAlcalá de Guadaira, 26 July: no readingAlcalá de Guadaira, 27 July: no readingAlcalá de Guadaira, 28 July: 39.8 µg/m³, 2.9× its usual 13.8Alcalá de Guadaira, 29 July: no readingAlcalá de Guadaira, 30 July: no readingAlcalá de Guadaira, 31 July: no readingHuelvaHuelva, 25 July: no readingHuelva, 26 July: no readingHuelva, 27 July: no readingHuelva, 28 July: 38.5 µg/m³, 3.3× its usual 11.8Huelva, 29 July: no readingHuelva, 30 July: no readingHuelva, 31 July: no readingCaravacaCaravaca, 25 July: no readingCaravaca, 26 July: no readingCaravaca, 27 July: no readingCaravaca, 28 July: 34.1 µg/m³, 3.2× its usual 10.5Caravaca, 29 July: no readingCaravaca, 30 July: no readingCaravaca, 31 July: no readingLorcaLorca, 25 July: no readingLorca, 26 July: no readingLorca, 27 July: no readingLorca, 28 July: 32.3 µg/m³, 2.5× its usual 12.8Lorca, 29 July: no readingLorca, 30 July: no readingLorca, 31 July: no readingAlcantarillaAlcantarilla, 25 July: no readingAlcantarilla, 26 July: no readingAlcantarilla, 27 July: no readingAlcantarilla, 28 July: 31.9 µg/m³, 2.5× its usual 12.6Alcantarilla, 29 July: no readingAlcantarilla, 30 July: no readingAlcantarilla, 31 July: no readingSevillaSevilla, 25 July: no readingSevilla, 26 July: no readingSevilla, 27 July: no readingSevilla, 28 July: 31.6 µg/m³, 2.6× its usual 12.3Sevilla, 29 July: no readingSevilla, 30 July: no readingSevilla, 31 July: no readingJumillaJumilla, 25 July: no readingJumilla, 26 July: no readingJumilla, 27 July: no readingJumilla, 28 July: 31.5 µg/m³, 2.7× its usual 11.8Jumilla, 29 July: no readingJumilla, 30 July: no readingJumilla, 31 July: no readingMurciaMurcia, 25 July: no readingMurcia, 26 July: no readingMurcia, 27 July: no readingMurcia, 28 July: 30.3 µg/m³, 2.3× its usual 13.1Murcia, 29 July: no readingMurcia, 30 July: no readingMurcia, 31 July: no readingManzanaresManzanares, 25 July: no readingManzanares, 26 July: 36.2 µg/m³Manzanares, 27 July: no readingManzanares, 28 July: 27.5 µg/m³, 2.3× its usual 11.9Manzanares, 29 July: no readingManzanares, 30 July: no readingManzanares, 31 July: no readingEl PlanEl Plan, 25 July: no readingEl Plan, 26 July: no readingEl Plan, 27 July: no readingEl Plan, 28 July: 27.1 µg/m³, 2.2× its usual 12.4El Plan, 29 July: no readingEl Plan, 30 July: no readingEl Plan, 31 July: no readingBarrio de PeralBarrio de Peral, 25 July: no readingBarrio de Peral, 26 July: no readingBarrio de Peral, 27 July: no readingBarrio de Peral, 28 July: 27.1 µg/m³, 2.2× its usual 12.4Barrio de Peral, 29 July: no readingBarrio de Peral, 30 July: no readingBarrio de Peral, 31 July: no readingMolina de SeguraMolina de Segura, 25 July: no readingMolina de Segura, 26 July: no readingMolina de Segura, 27 July: no readingMolina de Segura, 28 July: 26.4 µg/m³, 2.3× its usual 11.6Molina de Segura, 29 July: no readingMolina de Segura, 30 July: no readingMolina de Segura, 31 July: no reading25 Jul262728293031
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.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
Villa del PradoMadrid, Spain1 57.428 July8.76.6×
HuelvaAndalusia, Spain1 38.528 July11.83.3×
CaravacaMurcia, Spain1 34.128 July10.53.2×
Alcalá de GuadairaAndalusia, Spain1 39.828 July13.82.9×
JumillaMurcia, Spain1 31.528 July11.82.7×
SevillaAndalusia, Spain1 31.628 July12.32.6×
LorcaMurcia, Spain1 32.328 July12.82.5×
AlcantarillaMurcia, Spain1 31.928 July12.62.5×
MurciaMurcia, Spain1 30.328 July13.12.3×
ManzanaresCastille-La Mancha, Spain1 27.528 July11.92.3×
Molina de SeguraMurcia, Spain1 26.428 July11.62.3×
El PlanMurcia, Spain1 27.128 July12.42.2×
Barrio de PeralMurcia, Spain1 27.128 July12.42.2×

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

Number 26 of 41 episodes in Spain since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 41.

Use this page

SmogRank, North-eastern Spain, July 2026: 13 cities with PM2.5 at twice their usual or more, 28 July 2026, smogrank.com/episodes/2026-07-north-eastern-spain (accessed 5 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. Fire detections from NASA FIRMS; smoke maps from NOAA HMS.