Chapter 3 of the Modelling and Mapping Manual of the LRTAP Convention describes the most up-to-date methodology and establishment of critical levels for adverse impacts of air pollutants (ozone, sulphur dioxide, nitrogen oxides and ammonia) on vegetation. The current version of Chapter 3 includes updates to critical levels for ozone agreed at the 30th ICP Vegetation Task Force Meeting, 14-17 February, 2017, Poznan, Poland. For ozone, further supporting information is provided in Scientific Background Document A (SBD-A) regarding the methodologies and critical levels described in Chapter 3.
Scientific Background Document B (SBD-B; this document) contains DO3SE model parameterisations for additional species and information on developing areas of ozone research and the application of methodologies to further develop ozone critical levels in the future.
