SmogRank / Cleaner or dirtier / Spain

Spain: cleaner or dirtier, 2024

In Spain, 38 cities have enough days in both years to compare 2024 with the same days of 2023: 4 got dirtier and 31 cleaner.

The 4 cities that got dirtier, biggest rise first

#	City	2023	2024	Change
1	Grao de MurviedroValencia, Spain	37	40	+0.6 µg/m³+9%
2	AvilésAsturias, Spain	43	46	+0.5 µg/m³+6%
3	BurgosCastille and León, Spain	36	37	+0.2 µg/m³+3%
4	TeldeCanary Islands, Spain	44	44	+0.1 µg/m³+1%

The 31 cities that got cleaner, biggest fall first

#	City	2023	2024	Change
1	ArrecifeCanary Islands, Spain	58	45	−4.7 µg/m³−37%
2	Las Palmas de Gran CanariaCanary Islands, Spain	60	54	−3.4 µg/m³−24%
3	La Línea de la ConcepciónAndalusia, Spain	57	52	−2.4 µg/m³−20%
4	ArucasCanary Islands, Spain	55	51	−2.2 µg/m³−19%
5	SamaAsturias, Spain	55	49	−2.2 µg/m³−20%
6	OviedoAsturias, Spain	55	52	−1.7 µg/m³−15%
7	Santa Cruz de TenerifeCanary Islands, Spain	57	54	−1.5 µg/m³−12%
8	GijónAsturias, Spain	54	51	−1.4 µg/m³−13%
9	Puerto del RosarioCanary Islands, Spain	53	50	−1.2 µg/m³−12%
10	San FernandoAndalusia, Spain	39	33	−1.1 µg/m³−15%
11	PalenciaCastille and León, Spain	42	36	−1.1 µg/m³−15%
12	NarónGalicia, Spain	41	35	−1.0 µg/m³−14%
13	CuencaCastille-La Mancha, Spain	56	54	−1.0 µg/m³−8%
14	MadridSpain	50	45	−0.9 µg/m³−10%
15	AlgecirasAndalusia, Spain	51	47	−0.9 µg/m³−10%
16	San RoqueAndalusia, Spain	55	54	−0.9 µg/m³−8%
17	Ciudad RealCastille-La Mancha, Spain	47	42	−0.8 µg/m³−10%
18	SevillaAndalusia, Spain	57	55	−0.8 µg/m³−7%
19	AlicanteValencia, Spain	17	13	−0.7 µg/m³−23%
20	SaguntoValencia, Spain	29	26	−0.6 µg/m³−12%
21	BailénAndalusia, Spain	60	59	−0.6 µg/m³−4%
22	GranadaAndalusia, Spain	53	52	−0.5 µg/m³−5%
23	EldaValencia, Spain	30	28	−0.4 µg/m³−7%
24	AlmeríaAndalusia, Spain	38	36	−0.4 µg/m³−6%
25	FerrolGalicia, Spain	39	37	−0.4 µg/m³−6%
26	Santiago de CompostelaGalicia, Spain	41	38	−0.4 µg/m³−5%
27	A CoruñaGalicia, Spain	51	49	−0.4 µg/m³−4%
28	Castelló de la PlanaValencia, Spain	29	28	−0.3 µg/m³−6%
29	La OrotavaCanary Islands, Spain	51	50	−0.2 µg/m³−2%
30	VigoGalicia, Spain	60	59	−0.2 µg/m³−1%
31	SalamancaCastille and León, Spain	32	31	−0.1 µg/m³−2%

Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-07 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.