Pollen data is returned in the Realtime API, Forecast API and Future API based on user subscription plan. We also do provide historical pollen data (from 1st January 2010 onwards) for our Enterprise plan users for any given location in json and xml.
It provides pollen data for Hazel, Alder, Birch, Oak, Grass, Mugwort and Ragweed in grains per cubic meter of air (grains/m³ or PPM) for United States, Canada, UK and Europe cities and towns.
By default pollen data is not returned. To get pollen data back in the response please pass the parameter pollen=yes.
| Field |
Data Type |
Description |
| Hazel |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
| Alder |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
| Birch |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
| Oak |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
| Grass |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
| Mugwort |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
| Ragweed |
float |
Pollen grains per cubic meter of air (grains/m³ or PPM) |
Pollen concentration interpretation
| Pollen concentration (grains/m³) or PPM |
Risk level |
Typical impact |
| 1 – 20 |
Low |
Mild symptoms in sensitive individuals |
| 20 – 100 |
Moderate |
Noticeable symptoms for many allergic individuals |
| 100 – 300 |
High |
Strong symptoms; most allergic individuals affected |
| 300+ |
Very High |
Severe symptoms; avoidance measures often recommended |