Worst air pollution El Masnou, today and tomorrow
Today (16 July): Air quality in El Masnou is fair. PM2.5 is fair; AQI, NO2, and O3 are medium; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 49.3/100).
Tomorrow (17 July 2026): Air quality in El Masnou is poor. AQI worsens to poor; O3 increases to poor; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 60.0/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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El Masnou's air quality is shaped mostly by local traffic through town and dry-season road dust. Air quality is generally good but can dip during harvest. Evening downslope winds from nearby hills help clear the air after sunset.
Today - 16 July | Pollution peaks at 15:00
AQI:
Medium
49.3/100
PM2.5 (fine particles):
Fair
20.3/100
PM10 (coarse particles):
Good
11.1/100
NO2 (nitrogen dioxide):
Medium
40.1/100
O3 (ozone):
Medium
49.3/100
SO2 (sulfur dioxide):
Good
6.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.9/100
PM1 (ultrafine particles):
Good
18.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Poor
60.0/100
PM2.5 (fine particles):
Fair
23.7/100
PM10 (coarse particles):
Good
12.3/100
NO2 (nitrogen dioxide):
Medium
43.4/100
O3 (ozone):
Poor
60.0/100
SO2 (sulfur dioxide):
Good
5.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.3/100
PM1 (ultrafine particles):
Fair
22.5/100
Pollen forecast in El Masnou
View pollen forecastFrequently Asked Questions
Is air quality bad in El Masnou right now?
On 16 July 2026, overall air quality in El Masnou is fair. PM2.5 is the main pollutant at 20.3/100. Pollution peaks around 3:00 PM (O3: 49.3/100).
Will air quality be worse tomorrow in El Masnou?
On 17 July 2026, air quality conditions in El Masnou will be worse than today, with AQI forecast at poor at 60.0/100. Pollution peaks around 2:00 PM (O3: 60.0/100).
When is air pollution at its worst in El Masnou?
How do the seasons affect air quality in El Masnou? The coldest months usually see the year's poorest conditions, since calm anticyclonic weather holds local traffic and wood-burning pollution near street level. The transition into spring usually brings cleaner air, as more frequent rain and wind reduce the buildup of local pollution. Summer's intense heat and sunshine create ideal conditions for ozone formation, sometimes overshadowing the lower traffic volumes typical of the season. Air quality usually improves through autumn, as returning rains and cooling temperatures wash out summer's ozone and dust build-up. Coastal sea breezes here usually aid dispersal, but summer visitor traffic and periodic dust intrusions from North Africa can still cause spikes.
Are air quality levels in El Masnou based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app