Science Serving Maryland's Coasts

R/CBT-33

An assessment of the impact of metal-contaminated dredge spoils in wetland restoration

Principal Investigator: 

Cynthia C. Gilmour

Start/End Year: 

1998 to 2000

Institution: 

Academy of Natural Sciences Estuarine Research Center

Co-Principal investigator: 

Gerhardt F. Riedel, Academy of Natural Sciences Estuarine Research Laboratory

Description: 

The objective of this study is to assess the fate, bioavailability and transport of metals and metalloids in dredge spoils applied to wetlands. Specifically, we will examine six of the Chesapeake Bay Program Toxics of Concern (Cu, Pb, Cd, Cr, Hg, As) in a restored marsh that has previously received dredge spoils (Kenilworth Marsh) and in a control marsh (Dueling Creek) within the Anacostia River. We will also examine two metals that serve as models for particular modes of redox cycling (Fe, Mn).