WTR Serra do Mar MTB - Pollen and Air Quality Forecast for Today

Race day: 22 Nov 2026
Distance: 25 km

Pollen levels are low today, with cypress as the main active species. Air quality along the route is good, with all pollutants at low levels. Based on Airmine's forecast, which uses satellite data to calculate exposure every 200 metres along the route, air quality is at its worst 0.0 km after start. Pollen exposure peaks at 14.1 km after start.

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

Use our Strava plugin to check your own exposure.

WTR Serra do Mar MTB runs through the Serra do Mar coastal mountain range landscape in São Paulo state on this mountain bike trail event, with eucalyptus, native Atlantic Forest species, and subtropical trees as the main pollen sources along this Atlantic Forest coastal mountain route. The Serra do Mar's orographic rainfall contributes very frequent moisture interruptions, while the Atlantic Forest biodiversity contributes exceptional botanical pollen diversity and the coastal mountain terrain creates variable local conditions throughout this Atlantic Forest mountain bike event.

Today - 16 July

Pollen

Alder (Alnus):

None

0/100

Birch (Betula):

None

0/100

Hazel (Corylus):

None

0/100

Cypress (Cupressaceae):

Low

10/100

Grass (Poaceae):

None

0/100

Willow (Salicaceae):

None

0/100

Oak (Quercus):

None

0/100

Mugwort (Artemisia):

None

0/100

Mulberry (Morus):

None

0/100

Eucalyptus (Myrtaceae):

None

0/100

Plane (Platanus):

None

0/100

Nettle (Urtica):

None

0/100

Acacia (Acacia):

None

0/100

Ragweed (Ambrosia):

None

0/100

Amaranthaceae:

None

0/100

Air Quality

PM2.5 (fine particles):

Good

5.2/100

PM10 (coarse particles):

Good

2.4/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Good

15.5/100

SO2 (sulfur dioxide):

Good

0.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.3/100

PM1 (ultrafine particles):

Good

0.8/100

Levels show the highest exposure along the full route

Other routes:

Frequently Asked Questions

Where is air quality worst on the WTR Serra do Mar MTB route?

Based on today's forecast, O3 is forecast at good levels along the route today (15.5/100). Air quality is at its worst after 0.0 km into the route. Airmine calculates exposure at 200m intervals along the course using satellite-derived atmospheric data.

Where is pollen highest on the WTR Serra do Mar MTB course?

Pollen exposure peaks at km 14.1 today. This changes through the season as different pollen species become active.

When is pollen worst during the WTR Serra do Mar MTB season?

November coincides with peak cypress season. Grass pollen typically rises in May-June.

How often is this forecast updated?

Updated four times daily. See the timestamp below for the most recent update.

Are pollen levels in WTR Serra do Mar MTB based on measurements or forecasts?

Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.

Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in WTR Serra do Mar MTB, modern forecasts combine recent measurements, weather data, and information about local vegetation.

This allows us to estimate pollen levels for today and the coming days, not just report the past.

Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.

Levels show the highest exposure along the full route. Airmine uses satellite data to calculate pollen and air quality every 200 metres along each race route, updated four times daily.

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 responsibiity.