Worst air pollution Mar del Plata, today and tomorrow
Today (20 July): Air quality in Mar del Plata is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 PM (O3: 17.8/100).
Tomorrow (21 July 2026): Air quality in Mar del Plata is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 18.6/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Mar del Plata's air quality benefits from its exceptional South Atlantic Ocean coastal position, with consistent South Atlantic westerlies and Pampero winds providing reliable and often powerful maritime ventilation along Argentina's main seaside resort. Vehicle traffic on the Autovía 2 and the surrounding fishing port and tourism operations are the primary local sources, while the outstanding Atlantic coastal exposure and the open ocean geometry generally maintain Mar del Plata among Argentina's more reliably ventilated major coastal cities throughout most of the year.
Today - 20 July | Pollution peaks at 20:00
AQI:
Good
17.8/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.1/100
PM1 (ultrafine particles):
Good
1.8/100
Levels show the poorest local air quality during the day
Tomorrow - 21 July | Pollution peaks at 23:00
AQI:
Good
18.6/100
PM2.5 (fine particles):
Good
10.2/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
18.6/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.2/100
PM1 (ultrafine particles):
Good
1.9/100
Pollen forecast in Mar del Plata
View pollen forecastFrequently Asked Questions
Is air quality bad in Mar del Plata right now?
On 20 July 2026, overall air quality in Mar del Plata is good. AQI is the main air quality indicator at 17.8/100. Pollution peaks around 8:00 PM (O3: 17.8/100).
Will air quality be worse tomorrow in Mar del Plata?
On 21 July 2026, air quality conditions in Mar del Plata will be similar to today, with AQI forecast at good at 18.6/100. Pollution peaks around 11:00 PM (O3: 18.6/100).
When is air pollution at its worst in Mar del Plata?
In Mar del Plata, traffic on the surrounding roads, shipbuilding and port operations, along with seasonal tourism traffic are the main local sources, with conditions worsening when maritime winds die down. Onshore breezes usually help clear the air, but pollution can build up when winds are light. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Mar del Plata 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 21 July 2026 at 05:44 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