Air Pollution in Alsasua – Altsasu: Real-time Air Quality Index and smog alert.

The latest data Last 7 days
Current data from stations: ALSASUA
Locations: « Altsasu/Alsasua Alsasua – Altsasu
Pollution and air quality forecast for Alsasua – Altsasu. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Alsasua – Altsasu:
  1. nitrogen dioxide (NO2) - 33 (Good)
  2. particulate matter (PM10) suspended dust - 8 (Good)
  3. ozone (O3) - 30 (Good)
  4. carbon monoxide (CO) - 800 (Good)
  5. sulfur dioxide (SO2) - 3 (Good)
Real-time Air Quality Index (AQI) for Alsasua – Altsasu, Wednesday, January 17, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Alsasua – Altsasu today? Is the air polluted in Alsasua – Altsasu?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Alsasua – Altsasu.


How high is the level of NO2? (nitrogen dioxide (NO2))
33 (Good)

What is the level of PM10 today in Alsasua – Altsasu? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Alsasua – Altsasu is: 8 (Good) The highest PM10 values usually occur in month: 26 (February 2019). The lowest value of particulate matter PM10 pollution in Alsasua – Altsasu is usually recorded in: October (0.93).

How is the O3 level today in Alsasua – Altsasu? (ozone (O3))
30 (Good)

How high is the CO level? (carbon monoxide (CO))
800 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
3 (Good)



Current data Wednesday, January 17, 2024, 8:00 AM

NO2 33 (Good)

PM10 8 (Good)

O3 30 (Good)

CO 800 (Good)

SO2 3 (Good)

Data on air pollution from recent days in Alsasua – Altsasu

index 2024-01-10 2024-01-11 2024-01-12 2024-01-13 2024-01-14 2024-01-15 2024-01-16 2024-01-17
co 665
Good		 571
Good		 717
Good		 804
Good		 721
Good		 904
Good		 914
Good		 711
Good
no2 26
Good		 16
Good		 22
Good		 26
Good		 20
Good		 23
Good		 20
Good		 8
Good
pm10 19
Good		 11
Good		 19
Good		 24
Moderate		 18
Good		 20
Moderate		 17
Good		 14
Good
so2 4
Good		 4
Good		 4
Good		 4
Good		 4
Good		 4
Good		 3
Good		 3
Good
o3 21
Good		 38
Good		 29
Good		 14
Good		 19
Good		 17
Good		 18
Good		 52
Good
data source »

Air pollution in Alsasua – Altsasu from September 2017 to May 2020

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2018-05 2018-01 2017-11 2017-10 2017-09
o3 71 (Moderate) 77 (Moderate) 60 (Good) 46 (Good) 43 (Good) 11 (Good) 4.1 (Good) 2.3 (Good) 18 (Good) 13 (Good) 62 (Good) 74 (Moderate) 74 (Moderate) 67 (Good) 56 (Good) 62 (Good) 43 (Good) 40 (Good) 52 (Good) 74 (Moderate) 27 (Good) 43 (Good) 42 (Good) 54 (Good)
co 200 (Good) 125 (Good) 284 (Good) 308 (Good) 561 (Good) 341 (Good) 28 (Good) 11 (Good) 156 (Good) 63 (Good) 350 (Good) 406 (Good) 396 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 527 (Good) 467 (Good) 267 (Good) 112 (Good)
pm10 - (Good) 17 (Good) 17 (Good) 21 (Moderate) 20 (Good) 12 (Good) 1.1 (Good) 0.93 (Good) 6.3 (Good) 3.7 (Good) 18 (Good) 11 (Good) 13 (Good) 16 (Good) 26 (Moderate) 11 (Good) 12 (Good) - (Good) 17 (Good) - (Good) - (Good) 16 (Good) 8.7 (Good) 7.4 (Good)
so2 - (Good) 5 (Good) 12 (Good) 5.2 (Good) 4.7 (Good) 2.4 (Good) 0.37 (Good) 0.27 (Good) 2.2 (Good) - (Good) 4.1 (Good) 4.8 (Good) 4.9 (Good) 2.8 (Good) 3.1 (Good) 2.6 (Good) 3.1 (Good) - (Good) 3.2 (Good) - (Good) - (Good) 4.2 (Good) 3 (Good) 1.1 (Good)
no2 - (Good) 5.5 (Good) 12 (Good) 16 (Good) 17 (Good) 11 (Good) 1.1 (Good) 0.85 (Good) 4.9 (Good) 1.9 (Good) 7.2 (Good) 11 (Good) 13 (Good) 17 (Good) 22 (Good) 13 (Good) 13 (Good) - (Good) 13 (Good) - (Good) - (Good) 16 (Good) 15 (Good) 14 (Good)
data source »

ALSASUA

Wednesday, January 17, 2024, 8:00 AM

NO2 33 (Good)

nitrogen dioxide (NO2)

PM10 8 (Good)

particulate matter (PM10) suspended dust

O3 30 (Good)

ozone (O3)

CO 800 (Good)

carbon monoxide (CO)

SO2 3 (Good)

sulfur dioxide (SO2)

ALSASUA

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
co 711 914 904 721 804 717 571 665
no2 8.1 20 23 20 26 22 16 26
pm10 14 17 20 18 24 19 11 19
so2 3 3.3 3.6 4 4 4 3.8 4
o3 52 18 17 19 14 29 38 21

ES1749A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2018-05 2018-01 2017-11 2017-10 2017-09
no2 - 5.5 12 16 17 11 1.1 0.85 4.9 1.9 7.2 11 13 17 22 13 13 - 13 - - 16 15 14
o3 71 77 60 46 43 11 4.1 2.3 18 13 62 74 74 67 56 62 43 40 52 74 27 43 42 54
pm10 - 17 17 21 20 12 1.1 0.93 6.3 3.7 18 11 13 16 26 11 12 - 17 - - 16 8.7 7.4
co 200 125 284 308 561 341 28 11 156 63 350 406 396 - - - - - - - 527 467 267 112
so2 - 5 12 5.2 4.7 2.4 0.37 0.27 2.2 - 4.1 4.8 4.9 2.8 3.1 2.6 3.1 - 3.2 - - 4.2 3 1.1

* Pollution data source: https://openaq.org (EEA Spain) The data is licensed under CC-By 4.0