Air quality in Huelva

Data for Sunday, October 11, 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	21	23 at 19:00
  PM2,5	15	15 at 12:00
  NO₂	0.0	0.0 at 00:00
  O₃	73	104 at 22:00
  SO₂	16	92 at 13:00

• La Orden

  Huelva

  This station gave no readings that day.

• Los Rosales

  Huelva

  Pollutant	Average	Maximum
  PM10	23	25 at 08:00
  NO₂	13	13 at 00:00
  SO₂	17	80 at 13:00

• Marismas del Titán

  Huelva

  Pollutant	Average	Maximum
  PM10	27	31 at 02:00
  NO₂	5.5	11 at 00:00
  SO₂	15	21 at 14:00

• Pozo Dulce

  Huelva

  Pollutant	Average	Maximum
  PM10	27	29 at 09:00
  PM2,5	9.9	10 at 17:00
  NO₂	1.0	6.8 at 15:00
  SO₂	18	134 at 13:00

• Romeralejo

  Huelva

  Pollutant	Average	Maximum
  PM10	38	40 at 08:00
  SO₂	2.0	3.0 at 15:00

• Matalascañas

  Almonte

  Pollutant	Average	Maximum
  PM10	24	25 at 01:00
  NO₂	2.0	2.0 at 00:00
  O₃	72	98 at 23:00
  SO₂	2.0	2.0 at 00:00

• El Arenosillo

  Moguer

  Pollutant	Average	Maximum
  NO₂	3.8	7.0 at 03:00
  O₃	71	109 at 00:00
  SO₂	6.3	29 at 03:00

• Mazagón

  Moguer

  Pollutant	Average	Maximum
  PM2,5	7.5	8.3 at 18:00
  NO₂	7.1	11 at 11:00
  O₃	60	97 at 22:00
  SO₂	13	16 at 11:00

• Moguer

  This station gave no readings that day.

• Niebla

  Pollutant	Average	Maximum
  PM10	34	36 at 15:00
  NO₂	8.8	17 at 03:00

• La Rábida

  Palos de la Frontera

  Pollutant	Average	Maximum
  PM10	27	30 at 08:00
  NO₂	8.0	13 at 12:00
  O₃	64	93 at 22:00
  SO₂	0.0	0.0 at 00:00

• Palos

  Palos de la Frontera

  Pollutant	Average	Maximum
  PM10	30	32 at 12:00
  NO₂	6.8	14 at 12:00
  SO₂	7.1	8.0 at 10:00

• Torrearenilla

  Palos de la Frontera

  Pollutant	Average	Maximum
  PM10	15	16 at 13:00
  NO₂	3.3	6.0 at 12:00
  SO₂	3.9	9.0 at 12:00

• Punta Umbría

  Pollutant	Average	Maximum
  PM10	20	21 at 01:00
  NO₂	8.3	15 at 06:00
  O₃	81	123 at 22:00
  SO₂	7.0	27 at 12:00

• San Juan del Puerto

  Pollutant	Average	Maximum
  PM10	53	58 at 14:00
  NO₂	15	41 at 01:00
  SO₂	8.1	9.0 at 08:00

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