We developed a wetland-management technique to reduce methylmercury concentrations in wetland fish and water. We physically modified seasonal wetlands by constructing open- and deep-water treatment cells at the downstream end of seasonal wetlands to promote naturally occurring methylmercury-removal processes.

Exposure of 3 marine copepods to waterborne Cu with genotoxicity measured as DNA strand breaks in individual copepods (comet assay) and mortality as end points. Acute toxicity, observed as mortality in Acartia tonsa, was not directly linked to DNA strand breaks.