Ecological, Groundwater, and Human Health Risk Assessment in a Mining Region of Nicaragua

摘要: The objective of the present study was to integrate relative risk from mercury exposure stream biota, groundwater, and humans in Rio Artiguas (Sucio) river basin, Nicaragua, where local gold mining occurs. A hazard quotient used as a common exchange rate probabilistic estimations effects by means Monte Carlo simulations. endpoint for organisms lethal no-observed-effect concentration (NOECs), groundwater WHO guideline inhibitory Hg concentrations bacteria (IC), tolerable daily intake (TDI) benchmark dose level with an uncertainty factor 10 (BMDLs(0.1)). Macroinvertebrates fish contaminated are faced higher suffer than eating living groundwater. sediment is most hazardous source macroinvertebrates, macroinvertebrates make up highest fish. distribution body areas basin may exceed values close 100% probability. Similarly, cord blood feeding on predicted BMDLs(0.1) about 10% Most quality confined vicinity refining plants along river, probability 20% value.