Analysis of in-place contaminants in marine sediments from four harbor locations in Guam
Denton GR, Wood HR, Concepcion LP, Siegrist HG, Eflin VS, Narcis DK, Pangelinan GT. 1997. Analysis of in-place contaminants in marine sediments from four harbor locations in Guam. Water and Environmental Research Institute of the Western Pacific, University of Guam. Guam
During 1997, a preliminary survey was carried out to determine concentrations of heavy metals, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) in sediment core composites (5 x 30 cm) from four harbor locations on Guam (Agana Boat Basin, Outer Apra Harbor, Agat Marina, and Merizo Pier). Overall, a total of 46 sub-tidal sites were examined. The survey clearly demonstrated enrichment of all contaminant groups in Agana Boat Basin, Outer Apra Harbor and Merizo Pier, although by world standards, the majority of sites within each location were considered to be relatively clean. The highest levels of all three chemical groups were found at Apra Harbor, the largest and oldest port on Guam. Here, moderate to heavy enrichment of various heavy metals, PCBs and PAHs were identified in sediments collected in the vicinity of Hotel Wharf, Commercial Port, and Dry Dock Island. The lowest contaminant levels were almost always encountered at Agat Marina, a recently constructed small boat harbor to the south of Agana.
- Type
- Unpublished Report
- Authors
- Denton, Gary; Wood, H.; Concepcion, Lucrina; Siegrist, H.; Eflin, Vance; Narcis, Danzel; Pangelinan, Greg
- Date of Issue
- 1997-12
- Publisher
- Water and Environmental Research Institute of the Western Pacific, University of Guam
- Units
- WAPA
- Keywords
- Coastal-Marine Systems, Contaminants/Hazardous Materials, Guam, Marine Sediments, polychlorinated biphenyls (PCBs), Polycyclic Aromatic Hydrocarbons (PAHs), Water Pollution, Water Quality