- define the amount of gas and aerosol pollutant input to the ecosystem
- contribute to a better estimate of of the dry deposition, e.g.
of nitrogen, that is absorbed by the canopy
Gases and aerosols may interact with trees and understorey vegetation
directly or indirectly via deposited pollutants in soil and surface
waters. They are measured continuously by active and passive collectors.
SO2 and NO2 at all sites, with the addition of particulate SO4.and the sum of particulate and gaseous NO3 and NH4 at Gårdsjön
For further information see IVL.