Air quality in Huelva

Data for Wednesday, October 14, 2026

What each station measured that day, hour by hour: the hourly average and the highest value. In micrograms per cubic metre (µg/m³).

• Campus el Carmen

  Huelva

  Pollutant	Average	Maximum
  PM10	42	52 at 23:00
  PM2,5	16	19 at 15:00
  NO₂	7.0	26 at 09:00
  O₃	58	96 at 19:00
  SO₂	13	45 at 17:00

• La Orden

  Huelva

  This station gave no readings that day.

• Los Rosales

  Huelva

  Pollutant	Average	Maximum
  PM10	39	43 at 22:00
  SO₂	16	51 at 16:00

• Marismas del Titán

  Huelva

  Pollutant	Average	Maximum
  PM10	50	62 at 19:00
  NO₂	12	27 at 09:00
  SO₂	8.0	10 at 10:00

• Pozo Dulce

  Huelva

  Pollutant	Average	Maximum
  PM10	50	55 at 09:00
  PM2,5	14	15 at 09:00
  NO₂	7.9	34 at 00:00
  SO₂	16	53 at 17:00

• Romeralejo

  Huelva

  Pollutant	Average	Maximum
  PM10	47	49 at 23:00
  SO₂	2.3	5.0 at 17:00

• Matalascañas

  Almonte

  Pollutant	Average	Maximum
  PM10	27	29 at 22:00
  O₃	59	100 at 00:00
  SO₂	2.0	2.0 at 00:00

• El Arenosillo

  Moguer

  Pollutant	Average	Maximum
  NO₂	3.5	8.0 at 02:00
  O₃	72	88 at 00:00
  SO₂	3.0	5.0 at 11:00

• Mazagón

  Moguer

  Pollutant	Average	Maximum
  PM2,5	5.0	5.8 at 13:00
  NO₂	7.6	15 at 17:00
  O₃	71	94 at 00:00
  SO₂	13	14 at 11:00

• Moguer

  Pollutant	Average	Maximum
  PM10	47	49 at 22:00
  NO₂	16	39 at 08:00
  O₃	78	102 at 19:00
  SO₂	13	22 at 16:00

• Niebla

  Pollutant	Average	Maximum
  PM10	48	52 at 10:00
  NO₂	14	33 at 19:00

• La Rábida

  Palos de la Frontera

  Pollutant	Average	Maximum
  PM10	44	48 at 09:00
  NO₂	14	24 at 09:00
  O₃	61	85 at 00:00
  SO₂	0.0	0.0 at 00:00

• Palos

  Palos de la Frontera

  Pollutant	Average	Maximum
  PM10	36	39 at 11:00
  NO₂	13	28 at 08:00
  SO₂	7.5	8.0 at 00:00

• Torrearenilla

  Palos de la Frontera

  Pollutant	Average	Maximum
  PM10	26	29 at 19:00
  NO₂	4.9	9.0 at 10:00
  SO₂	4.0	21 at 22:00

• Punta Umbría

  Pollutant	Average	Maximum
  PM10	27	32 at 13:00
  NO₂	14	29 at 13:00
  O₃	73	115 at 20:00
  SO₂	5.3	7.0 at 13:00

• San Juan del Puerto

  Pollutant	Average	Maximum
  PM10	66	72 at 08:00
  NO₂	18	39 at 09:00
  SO₂	8.5	9.0 at 01:00

What each one is

PM10

Particles smaller than 10 microns

PM2,5

Particles smaller than 2.5 microns

NO₂

Nitrogen dioxide

O₃

Ozone

SO₂

Sulphur dioxide