Division I General remarks

Assessment of ozone injury in accordance with Article 6(c) shall be carried out on an optional basis on Level II plots. Where ozone injury is assessed the following provisions shall be applicable.

The following provisions are based on technical recommendations of the Working Group on Ambient Air Quality of the UNECE International Cooperative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests). [Reference is made to the sub-manual prepared by this Working Group where additional information is made available.]