Description
Particulate matter is almost always a mixture of different types of particles. When it is emitted directly, we are talking about primary dust. When it is caused by reactions in the air, we speak of secondary dust. PM2.5 are dust particles smaller than 2.5 μm (=0.0025mm).
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Evolution of the annual mean concentration of PM2.5 per type area | CSV | Open resource |