Figure 2

Trends in SO₂, sulfate in aerosols and in wet deposition in East Asia, North America and Europe from observations and the EMEP/MSC-W model (and Ensemble model for sulfate in aerosols) at the selected number of sites, and the average bootstrap trends and standard deviations from 1000 iterations. Observed and modelled concentrations are given on the y-axis on the left, while emissions on the right. For East Asia an alternative emission development the last ten years are included, based on more recent inventories^7,8.