Fig. 5
From: Estimating ozone risks using forest monitoring networks—results for science, policy, and society
Maps of potential risk for vegetation in the Trento province for the period 2007–2011. Risk was estimated considering the target value for 2010 and the long-term objective of Directive 2008/50/EC (18,000 and 6000 μg m−3 h, respectively; top left and right) and the critical level of the UNECE Manual (10,000 μg m−3 h; bottom left). On the bottom right, percentage of forest area for each risk category