SmogRank / Episodes / Spain

Murcia and Valencia, Spain, March 2025

For 1 day, on 20 March 2025, 8 cities in Spain had PM2.5 at least twice their usual for the time of year. The worst reading was El Plan, Murcia, Spain: 43.5 µg/m³ on 20 March, about 6.2× its usual 7.0. Ended 20 March.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached8in 1 country
Days120 March 2025
Worst day20 March8 cities counted
Furthest above usual7.0×Lorca

Day by day

20 March 8 cities at twice their usual or more
VillenaEldaJumillaAlicanteAlcantarillaTorreviejaBuñolAlbaceteUtielCaravacaGrao de MurviedroOndaBurrianaCastelló de la PlanaBenicàssimCuencaAlmeríaManzanaresVillarejo de SalvanésBailénJaénCiudad RealGranadaAlcalá de HenaresTorrejón de ArdozValdemoroCosladaAlgeteSalouMadridFuenlabradaToledoMóstolesCollado-VillalbaVilla del PradoPalmaSan IldefonsoBunyolaMarratxíCórdobaCártamaCampillosAlgiersPrado del ReySan RoqueSalamancaValenciaMolina de SeguraMurciaCartagenaBarrio de PeralEl PlanSaguntoLorca
17 Mar181920212223
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

El PlanEl Plan, 17 March: 5.0 µg/m³El Plan, 18 March: 7.5 µg/m³El Plan, 19 March: 6.3 µg/m³El Plan, 20 March: 43.5 µg/m³, 6.2× its usual 7.0El Plan, 21 March: 24.7 µg/m³El Plan, 22 March: 6.4 µg/m³El Plan, 23 March: 3.2 µg/m³Barrio de PeralBarrio de Peral, 17 March: 5.0 µg/m³Barrio de Peral, 18 March: 7.5 µg/m³Barrio de Peral, 19 March: 6.3 µg/m³Barrio de Peral, 20 March: 43.5 µg/m³, 6.2× its usual 7.0Barrio de Peral, 21 March: 24.7 µg/m³Barrio de Peral, 22 March: 6.4 µg/m³Barrio de Peral, 23 March: 3.2 µg/m³CartagenaCartagena, 17 March: 5.3 µg/m³Cartagena, 18 March: 9.1 µg/m³Cartagena, 19 March: 5.9 µg/m³Cartagena, 20 March: 42.4 µg/m³, 5.6× its usual 7.6Cartagena, 21 March: 29.6 µg/m³Cartagena, 22 March: 8.1 µg/m³Cartagena, 23 March: 3.0 µg/m³MurciaMurcia, 17 March: 9.6 µg/m³Murcia, 18 March: 6.3 µg/m³Murcia, 19 March: 6.3 µg/m³Murcia, 20 March: 39.5 µg/m³, 5.0× its usual 7.9Murcia, 21 March: 24.4 µg/m³Murcia, 22 March: 5.8 µg/m³Murcia, 23 March: 3.3 µg/m³Molina de SeguraMolina de Segura, 17 March: 6.2 µg/m³Molina de Segura, 18 March: 7.5 µg/m³Molina de Segura, 19 March: 7.7 µg/m³Molina de Segura, 20 March: 37.5 µg/m³, 4.8× its usual 7.8Molina de Segura, 21 March: 23.4 µg/m³Molina de Segura, 22 March: 4.8 µg/m³Molina de Segura, 23 March: 3.7 µg/m³LorcaLorca, 17 March: 5.1 µg/m³Lorca, 18 March: 5.4 µg/m³Lorca, 19 March: 5.5 µg/m³Lorca, 20 March: 37.1 µg/m³, 7.0× its usual 5.3Lorca, 21 March: 27.1 µg/m³Lorca, 22 March: 3.7 µg/m³Lorca, 23 March: 2.6 µg/m³SaguntoSagunto, 17 March: 6.1 µg/m³Sagunto, 18 March: 8.1 µg/m³Sagunto, 19 March: 7.7 µg/m³Sagunto, 20 March: 32.1 µg/m³, 6.4× its usual 3.6Sagunto, 21 March: 18.0 µg/m³Sagunto, 22 March: 5.0 µg/m³Sagunto, 23 March: 3.5 µg/m³ValenciaValencia, 17 March: 11.5 µg/m³Valencia, 18 March: 11.7 µg/m³Valencia, 19 March: 17.8 µg/m³Valencia, 20 March: 31.4 µg/m³, 3.9× its usual 8.0Valencia, 21 March: 20.5 µg/m³Valencia, 22 March: 4.7 µg/m³Valencia, 23 March: 3.4 µg/m³17 Mar181920212223
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
LorcaMurcia, Spain1 37.120 March5.37.0×
SaguntoValencia, Spain1 32.120 March3.66.4×
El PlanMurcia, Spain1 43.520 March7.06.2×
Barrio de PeralMurcia, Spain1 43.520 March7.06.2×
CartagenaMurcia, Spain1 42.420 March7.65.6×
MurciaMurcia, Spain1 39.520 March7.95.0×
Molina de SeguraMurcia, Spain1 37.520 March7.84.8×
ValenciaValencia, Spain1 31.420 March8.03.9×

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 38 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, Murcia and Valencia, Spain, March 2025: 8 cities with PM2.5 at twice their usual or more, 20 March 2025, smogrank.com/episodes/2025-03-murcia-and-valencia-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.