作者: Mark Wayland , Richard Casey , Eric Woodsworth
DOI: 10.1080/10807030701456734
关键词:
摘要: ABSTRACT Selenium is a trace element of concern in the McLeod River basin downstream from two recently-closed coal mines west-central Alberta, Canada. Aquatic birds breed on streams area and may be exposed to excessive amounts selenium through their diets. In this article, we present results dietary-based assessment risk that pose aquatic bird species, American Dipper (Cinclus mexicanus) Harlequin Duck (Histrionicus histrionicus), one mine–affected streams, Gregg River. The study consisted (1) literature-based toxicity assessment, (2) simulation exposure diets eggs (3) coupled information exposure. Diet egg concentrations associated with 20% hatch failure rate were 6.4 17 μ g · g−1 dry wt, respectively. Simulated dietary about 2.0–2.5 higher than reference st...