What you get
- Types
- Alder, birch, grass, mugwort, olive and ragweed
- Unit
- Grains per cubic metre of air
- Time
- Now and every hour for 1 to 120 hours
- Where
- Europe; elsewhere the pollen values are null and the rest of the air quality forecast is there as usual
For a point
curl "https://geo.runningcat.dev/v1/air?lon=16.37&lat=48.21&hours=72" \
-H "Authorization: Bearer YOUR_KEY"Each hour carries alderPollen, birchPollen, grassPollen, mugwortPollen, olivePollen and ragweedPollen next to PM2.5, PM10, ozone, the European and US AQI and the UV index. The air quality API page shows a full answer.
Over a region
GET /v1/air/area?bbox=west,south,east,north&cells=100&hours=24 returns each pollen type on a grid of up to 400 cells, ready to colour a map. Cells go row by row from the north-west corner, and each value is an array of hours by cells.
A note on seasons
Outside the flowering season of a plant, its values are zero. Birch and alder peak in spring, grass in late spring and summer, ragweed and mugwort in late summer and autumn, and olive around the Mediterranean in spring.
Price
Pollen is part of the air quality request and counts as one request with it. The free plan gives 500 requests a day, also for commercial apps; Developer is $14.99 a month for 5,000 a day.
Credits: pollen and air quality forecasts from Open-Meteo.com (CC BY 4.0), based on Copernicus Atmosphere Monitoring Service data.