Worst air pollution Guapimirim, today and tomorrow
Today (16 July): Air quality in Guapimirim is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 16.0/100).
Tomorrow (17 July 2026): Air quality in Guapimirim is good. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 16.9/100). 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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Guapimirim's air quality reflects the Rio de Janeiro state Serra dos Órgãos mountain valley, with vehicle emissions from the BR-493 and surrounding agricultural and ecotourism operations in this Guanabara Bay water catchment municipality contributing local sources. The surrounding Atlantic Forest mountains create dramatic topographic variation, while the forested watershed generally maintains cleaner mountain air in the upper valley areas and the Guanabara Bay basin's broader metropolitan influence affects the lower valley throughout the year.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
16.0/100
PM2.5 (fine particles):
Good
12.5/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.0/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
2.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 18:00
AQI:
Good
16.9/100
PM2.5 (fine particles):
Good
12.7/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.9/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.1/100
Pollen forecast in Guapimirim
View pollen forecastFrequently Asked Questions
Is air quality bad in Guapimirim right now?
On 16 July 2026, overall air quality in Guapimirim is good. AQI is the main air quality indicator at 16.0/100. Pollution peaks around 11:00 PM (O3: 16.0/100).
Will air quality be worse tomorrow in Guapimirim?
On 17 July 2026, air quality conditions in Guapimirim will be similar to today, with AQI forecast at good at 16.9/100. Pollution peaks around 6:00 PM (O3: 16.9/100).
When is air pollution at its worst in Guapimirim?
Residents in Guapimirim are most likely to notice reduced air quality when mangrove vegetation and the Guapimirim River corridor pollen peaks, or due to vehicle emissions from the BR-493 and surrounding agricultural and ecotourism operations in this Guanabara Bay water; cooler, breezier weather later in the year tends to bring things back down.
Are air quality levels in Guapimirim 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