Lierløpet Half Marathon - Pollen and Air Quality Forecast for Today
Pollen
Pollen levels are today low across the route.
Air Quality
Air quality along the route is fair. O3 (25.1/100) is fair. The remaining pollutants stay at good 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.
Race Course Map
Loading route map…
Environmental Exposure Detail
Lierløpet Half Marathon is an annual half marathon held in Drammen, Norway, usually held in August, drawing runners of all levels each year. Runners take in the sights of Drammen along a course that loops through the city centre and surrounding streets.
Lierløpet Half Marathon runs through the streets of Drammen, where plane, lime, and birch street trees are the main pollen source along the course, with birch peaking through April and May and grass pollen building through June and July. Air quality is typically reasonable for an urban route, with pollution levels lowest early in the morning before traffic builds up around Drammen.
Track on the Go
For dynamic route mapping, hyper-local forecasts, and personalized exposure tracking, download the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Forecast for 30 August
Pollen Forecast
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 1/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Mulberry (Morus) | None | 0/100 |
| Plane (Platanus) | None | 0/100 |
| Nettle (Urtica) | None | 0/100 |
| Ragweed (Ambrosia) | None | 0/100 |
| Goosefoot (Amaranthaceae) | None | 0/100 |
Air Quality Forecast
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 25.1/100 |
| PM2.5 (fine particles) | Good | 2.2/100 |
| PM10 (coarse particles) | Good | 0.8/100 |
| NO2 (nitrogen dioxide) | Good | 4.7/100 |
| O3 (ozone) | Fair | 25.1/100 |
| SO2 (sulfur dioxide) | Good | 0.5/100 |
| CO (carbon monoxide) | Good | 0.0/100 |
| HCHO (formaldehyde) | Good | 1.5/100 |
| PM1 (ultrafine particles) | Good | 1.8/100 |
Get pollen & AQ on Strava
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Frequently Asked Questions
Where is air quality worst on the Lierløpet Half Marathon route?
Based on today's forecast, O3 is forecast at fair levels along the route today (25.1/100). 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 Lierløpet Half Marathon course?
Pollen levels are relatively low across the entire route today. This changes through the season as different pollen species become active.
When is pollen worst during the Lierløpet Half Marathon season?
Pollen seasons vary by location. Tree pollen (birch, alder) typically peaks in spring, while grass pollen 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 Lierløpet Half Marathon 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 Lierløpet Half Marathon, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen exposure is expected to be at or near its highest levels. |
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |