Estimation of waterborne selenium concentrations that are toxicity thresholds for wildlife

摘要: Contamination of freshwater systems can lead to mortality and impaired reproduction in wildlife. There is a growing need for methods estimate waterborne contaminant concentrations that pose an unacceptable risk semi-aquatic terrestrial vertebrates use aquatic habitats. Single-species toxicity data, information on bioaccumulation food webs, energy-based estimates exposure sensitive birds mammals were used selenium levels are thresholds Threshold with habits likely high bioaccumulative contaminants (e.g., piscivorous mammals) about 1 μg/L (ppb) (dissolved selenium). The near the low end developed by other investigators using different methods. model may be useful tool estimating risks environmental