title: Chemical contaminants in surficial sediment in Coral and Fish Bays, St. John, U.S. Virgin Islands.
abstract: Land based sources of pollution have the potential to negatively impact coral reef ecosystems. Many coral systems, including environmentally sensitive marine protected areas, do not have assessments of their chemical contaminant status (magnitude and extent). Without a status assessment, it is impossible to measure change in a system. This study presents surficial sediment data from Coral and Fish Bays (St. John, US Virgin Islands (USVI)). Portions of these bays are included in Virgin Islands National Park, and Virgin Islands Coral Reef National Monument. A suite of analytes (PCBs, PAHs, pesticides, heavy metals, butyltins) was quantified and compared against other regional data and against previously published sediment quality guidelines (SQG). Contamination from toxic contaminants in the system was generally low when compared to other similar studies and potential toxicity thresholds (SQG). Exceptions to this were copper and total chlordane which exceeded the Effects Range Low (ERL) sediment quality guideline, indicating possible sediment toxicity. This assessment will be useful to coastal managers for tracking environmental change, and ensuring that this marine protected area remains relatively free from toxic contamination.
authors.affiliation: Center for Coastal Monitoring and Assessment, National Centers for Coastal Ocean Science, National Ocean Service, NOAA, United States. Electronic address: dave.whitall@noaa.gov.
authors.forename: David
authors.initials: D
authors.lastname: Whitall
authors.affiliation: Center for Coastal Monitoring and Assessment, National Centers for Coastal Ocean Science, National Ocean Service, NOAA, United States.
authors.forename: Anthony
authors.initials: A
authors.lastname: Pait
authors.affiliation: Center for Coastal Monitoring and Assessment, National Centers for Coastal Ocean Science, National Ocean Service, NOAA, United States.
authors.forename: S Ian
authors.initials: SI
authors.lastname: Hartwell
mesh_terms: D019015:Geologic Sediments / Q000032:analysis*; D014767:United States Virgin Islands; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical
keywords: Heavy metals; Hydrocarbons; Organotins; Pesticides; Pollution monitoring; Reefs; Sediment pollution