Abstract:
By setting up benchmarks for underground water indices,a universal exponential formula with power function suitable to the multiindexes is put forward to evaluate underground water.The immune evolutionary algorithm (IEA) is used for optimizing the parameters in the formula.The optimized formula is free from the restrictions of kinds and numbers of pollutant,including assessment formula of single index as a special example.It can be used for evaluating several cases,compared with the results of other methods,the modified universal formula is simple,easy to calculate,comparable and practical.