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Los Angeles and Long Beach Harbors Vicinity

In 1992, the State Water Resources Control Board (SWRCB) and the National Oceanic and Atmospheric Administration (NOAA) entered into a three-year cooperative agreement to assess potential adverse biological effects in several coastal bays and harbors in Southern California. This study was performed in San Pedro Bay, Los Angeles Harbor, Long Beach Harbor, Anaheim Bay, Alamitos Bay, and Huntington Harbour in southern California. The purposes of the study were to:

  • characterize the magnitude and relative spatial extent of toxicant-associated bioeffects in these nearshore areas
  • determine relationships between concentrations and mixtures of sediment-associated toxicants and the occurrence and severity of bioeffects; and
  • distinguish more severely impacted sediments from less severely impacted sediments.

The study was managed and coordinated by the California State Water Resources Control Board's (SWRCB) Bay Protection and Toxic Cleanup Program (BPTCP), as a cooperative effort with the NOAA's Bioeffects Assessment Branch, and the California Department of Fish and Game's (CDFG) Marine Pollution Studies Laboratory. Funding was provided by the SWRCB and NOAA, with all three agencies participating in planning and design activities.

The majority of the sample collections were done by staff of the San Jose State University Foundation at the Moss Landing Marine Laboratories, who also performed the Total Organic Carbon (TOC) and grain size analyses, as well as the benthic community analyses. The toxicity testing was conducted by University of California at Santa Cruz (UCSC) staff at the CDFG toxicity testing laboratory at Granite Canyon, California.

Trace metals analyses were performed by CDFG personnel at the trace metal facility at Moss Landing Marine Laboratories, Moss Landing, California. Synthetic organic pesticides, polyaromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) were analyzed at the UCSC trace organics facility at Long Marine Laboratory in Santa Cruz. Additional information on the study and publications generated can be accessed from the State of California Water Resource Board website.

Project Partners
State of California Water Resource Board
National Oceanic and Atmospheric Administration
California Department of Fish and Game