Worst air pollution Diadema, today and tomorrow
Today (16 July): Air quality in Diadema is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 15.6/100).
Tomorrow (17 July 2026): Air quality in Diadema is good. All pollutants stay as today. Pollution peaks around 10:00 PM (O3: 16.7/100). 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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Diadema's air quality is significantly influenced by its position as one of greater São Paulo's most industrialised municipalities in the ABC Paulista corridor, with chemical, pharmaceutical, and automotive manufacturing plants generating elevated PM2.5 and NOₓ in this densely populated industrial city. The Greater São Paulo basin's poor dispersal characteristics compound Diadema's industrial emissions, keeping readings consistently among the metropolitan area's most elevated values.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
15.6/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
15.6/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Good
16.7/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.7/100
Pollen forecast in Diadema
View pollen forecastFrequently Asked Questions
Is air quality bad in Diadema right now?
On 16 July 2026, overall air quality in Diadema is good. AQI is the main air quality indicator at 15.6/100. Pollution peaks around 11:00 PM (O3: 15.6/100).
Will air quality be worse tomorrow in Diadema?
On 17 July 2026, air quality conditions in Diadema will be similar to today, with AQI forecast at good at 16.7/100. Pollution peaks around 10:00 PM (O3: 16.7/100).
When is air pollution at its worst in Diadema?
Reduced air quality in Diadema is most likely when native Atlantic Forest remnants and introduced urban trees pollen peaks, alongside periods of chemical, pharmaceutical, and automotive manufacturing plants; wind and rain both help clear the air fairly quickly here.
Are air quality levels in Diadema 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