title: Profile of polychlorinated biphenyls in the brown alga Padina sanctae-crucis along the Orote dump coastline, Orote Peninsula, Western Guam.
abstract: The purpose of this study was to determine whether the brown seaweed Padina sanctae-crucis might be used as a biomonitor organism to determine the location, distribution, and type of polychlorinated biphenyls (PCB) present along a contaminated tropical coastline. Polychlorinated biphenyls were detected in P. sanctae-crucis collected from near-shore waters along a 4-km stretch of coastline. The profile of PCB levels from samples obtained at 13 sites along the coastline demonstrated a positive concentration gradient as sample locations progressed toward the dump site. Sample locations nearest the dump site revealed PCB levels twofold higher than background levels for P. sanctae-crucis. Chromatograms of samples obtained nearest the dump site indicated a similarity to the Aroclor 1260 fingerprint. The P. sanctae-crucis frond trimmings used for laboratory analysis were approximately 3-5 wk old. This study was conducted 8 mo following the completion of the removal actions at the dump site. Data suggest a release of Aroclor 1260 into the marine environment approximately 7 mo following the completion of removal actions at the dump site.
authors.affiliation: brianatguam@yahoo.com
authors.forename: Brian Christopher
authors.initials: BC
authors.lastname: Schaible
mesh_terms: D001140:Aroclors / Q000032:analysis; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D005843:Geography; D006141:Guam; D009792:Oceans and Seas; D000459:Phaeophyceae / Q000737:chemistry*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D012037:Refuse Disposal; D013997:Time Factors
chemical_list: D001140:Aroclors; D004785:Environmental Pollutants; C026987:aroclor 1260; D011078:Polychlorinated Biphenyls