Development of soil metal criteria to preserve groundwater quality

摘要: The principal impediment in the remediation of contaminated sites and protection groundwater quality is lack appropriate reasonable standards for heavy metals soils. There are no applicable to predict potential contamination by Taiwan. Lack these soil may result subjective judgment regarding needed. migration through unsaturated zone controlled sorption soil, a highly pH-dependent process, hydrological regime. Soil behavior criterion upon which establish standard based on maximum permissible concentration groundwater. level metal equilibrium soluble does not exceed Drinking Water Standard can be computed, at any pH, from measured adsorption coefficient soil. These criteria used as that will protective quality. Criteria specific types effect pH because partitioning trace dependent solution chemical nature