00000nam 2200000zi 4500 9.944530 CaOODSP 20250324105900 m o d f cr cn||||||||| 241028t20252025bccbd ob f000 0 eng d 9780660741987 CaOODSP eng rda CaOODSP eng eng fre n-cn-bc Fs97-13/1410E-PDF Brown, Tanya M., author. Sediment contaminant concentrations from disposal at sea sites at Point Grey and Sand Heads and inside and outside resident killer whale critical habitat, British Columbia in 2021 / by Tanya M. Brown, Stephanie Holbert, Carys A. Gallilee, Katerina Colbourne. West Vancouver, B.C. : Fisheries and Oceans Canada, Pacific Science Enterprise Centre, Pacific Region, 2025. ©2025 1 online resource (ix, 64 pages) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian data report of fisheries and aquatic sciences, 1488-5395 ; 1410 Includes bibliographical references (pages 11-12). "This study characterizes priority contaminants in the habitat of the Endangered Southern Resident killer whales (SRKW), Threatened Northern Resident killer whales (NRKW) and their primary prey Chinook salmon. Surficial sediment samples (n = 17) were collected from two Disposal at Sea sites (Point Grey and Sand Heads) and inside and outside SRKW Critical Habitat (CH). Samples were analyzed for 13 contaminant classes: polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), alkylphenols, hexabromocyclododecane (HBCDD), legacy and current-use pesticides, per- and polyfluoroalkyl substances (PFASs), pharmaceuticals and personal care products (PPCPs), tetrabromobisphenol A (TBBPA), polycyclic aromatic hydrocarbon (PAHs), chlorinated paraffins (CPs), and metals. Results reveal higher (p<0.05) average concentrations of PAHs inside CH and Point Grey compared to Sand Heads. Average alkylphenol concentrations were higher inside and outside CH compared to Sand Heads. Average ∑PCB concentrations in the four groups exceeded the ∑PCB interim sediment quality guideline. Average ∑PBDE, ∑PCDD, ∑PCDF, cadmium (Cd), lead (Pb), zinc (Zn) copper (Cu), and mercury (Hg) concentrations at the four groups were below the sediment quality guidelines for these compounds and classes. Average arsenic concentrations outside CH and at Point Grey exceeded the CCME sediment quality guideline. These high-resolution contaminant data are relevant to the protection and recovery of SARA-listed SRKW and NRKW"--Abstract, page viii. Includes abstracts in English and French. Marine sediments Sampling British Columbia Pacific Coast. Contaminated sediments British Columbia Pacific Coast Analysis. Marine sediments British Columbia Pacific Coast Analysis. Killer whale Habitat British Columbia Pacific Coast. Sédiments marins Échantillonnage Colombie-Britannique Pacifique, Côte du. Sédiments contaminés Colombie-Britannique Pacifique, Côte du Analyse. Sédiments marins Colombie-Britannique Pacifique, Côte du Analyse. Orque Habitat Colombie-Britannique Pacifique, Côte du. Canada. Department of Fisheries and Oceans, issuing body. Canadian data report of fisheries and aquatic sciences ; 1410. (CaOODSP)9.505124 PDF 1.84 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/Fs97-13-1410-eng.pdf