A probabilistic methodology to assess the risk of groundwater quality degradation.

摘要: An approach to assess the risk of groundwater quality degradation with regard fixed standards, based on Disjunctive Kriging (DK) is presented. The DK allows one evaluate Con- ditional Probability (CP) overriding a given threshold concentration pollutant at time, and generic point in considered system. result such investigation over area can be plotted form maps spatial risk. By repeating this analysis different times, several will produced, for each time. means non-parametric statistics, temporal trend CPs evaluated every area. index, assessed by sort classification values obtained as described above, superimposed most recent (i.e.: probability). Consequently results which weigh both distribution behaviour probability exceed standard threshold. methodology has been applied nitrate sampled monitoring well network Modena plain, northern Italy. This characterised intensive agricultural exploitation hog breeding along indus- trial civil developments. influence agriculture high pollution that limits its use potable purposes.