Step 3: Rank potential impact for each habitat x ecosystem service combination using exposure and effects information

Information on the likely exposure of habitats in each case study was used to identify habitats potentially at risk. Knowledge of the level of redundancy among SPUs providing each ecosystem service, and the potential level of impact of chemicals versus regulatory protection goals for these services was used to identify ecosystem services potentially at risk. This information was combined to categorise ES x habitat combinations as either high potential impact (red) or medium potential impact (amber) or low potential impact (green).