Groundwater Vulnerability to Pollution C factor map (Concentration of flow) in karstic aquifers of Catalonia according to COP

Concentration of flow factor map indicates the reduction of protection of the groundwater surface due to karst development. It is expressed as a value according to COP index ranges from 0 to 1, being the range of lowest values (0 - 0.2) the one that indicates a very high reduction of the overlying layers protection (factor O), and the range of the highest values (0.8 – 1) a very low reduction of the overlying layers protection.