Post-Remediation Biomonitoring of Pesticides in Marine Waters Near the United Heckathorn Site, Richmond, California

Antrim, Liam D. ; Kohn, Nancy P.

Pacific Northwest National Laboratory (U.S.)

关键词: Sediments;    Monitoring;    Mussels;    Water Pollution Superfund;    Dieldrin;   

DOI  :  10.2172/965182
RP-ID  :  PNNL-11911-Rev 1
RP-ID  :  AC05-76RL01830
RP-ID  :  965182

美国|英语

来源: UNT Digital Library

【 摘 要 】

Marine sediment remediation at the United Heckathorn Superfund Site was completed in April 1997. Water and mussel tissues were sampled in January 1998 from four stations near Lauritzen Canal in Richmond, California, for the first post-remediation monitoring of marine areas near the United Heckathorn Site. Dieldrin and DDT were analyzed in water samples, tissue samples from resident mussels, and tissue samples from transplanted mussels deployed for 4 months. Concentrations of dieldrin and total DDT in water and total DDT in tissue were compared to pre-remediation data available from the California State Mussel Watch program (tissues) and the Ecological Risk Assessment for the United Heckathorn Superfund Site (tissues and water). Biomonitoring results indicated that pesticides were still bioavailable in the water column, and have not been reduced from pre-remediation levels. Annual biomonitoring will continue to assess the effectiveness of remedial actions at the United Heckathorn Site.