Worst air pollution São Mateus, today and tomorrow
Today (16 July): Air quality in São Mateus is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 17.2/100).
Tomorrow (17 July 2026): Air quality in São Mateus is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 17.4/100). 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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São Mateus's air quality reflects its position on the Espírito Santo northern coast, with vehicle emissions from the BR-101 and the surrounding petroleum extraction operations from the Campos-São Mateus oil basin and agricultural activity contributing local sources in this major Petrobras oil industry regional hub. Atlantic sea breezes from the Espírito Santo coast generally provide coastal ventilation, while the petroleum extraction operations' methane and VOC emissions represent the most distinctive local air quality contribution alongside the primary vehicle and coastal sources.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
17.2/100
PM2.5 (fine particles):
Good
10.1/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
17.2/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
17.4/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
17.4/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
2.5/100
Pollen forecast in São Mateus
View pollen forecastFrequently Asked Questions
Is air quality bad in São Mateus right now?
On 16 July 2026, overall air quality in São Mateus is good. AQI is the main air quality indicator at 17.2/100. Pollution peaks around 11:00 PM (O3: 17.2/100).
Will air quality be worse tomorrow in São Mateus?
On 17 July 2026, air quality conditions in São Mateus will be similar to today, with AQI forecast at good at 17.4/100. Pollution peaks around 11:00 PM (O3: 17.4/100).
When is air pollution at its worst in São Mateus?
In São Mateus, reduced air quality is most noticeable when native Atlantic Forest remnants and eucalyptus pollen peaks, and on days affected by vehicle emissions from the BR-101 and the surrounding petroleum extraction operations from the Campos-São Mateus oil; the picture usually improves again once the season turns.
Are air quality levels in São Mateus 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