The abatement of nitrogen-related deposition was more modest due to the increasing difficulty associated with controlling NOx emissions. Analogous decreases were observed for the area of forests above critical levels of NO2 and SO2. The analysis of impacts on crops also evidenced a decrease in the monetary losses due to O3-induced crop damage due to the control of NOx and VOC emissions, avoiding the potential externalisation of approximately
1.9 m€2014 to the commodities market. When considering health im-
pacts, the degree of impacts produced by human exposure to O3 re- vealed a very marginal increase in the 20 year-period (6 additional deaths),