Sediment contaminant concentrations from disposal at sea sites at Point Grey and Sand Heads and inside and outside southern resident killer whale critical habitat, British Columbia in 2019 / Tanya M. Brown,... : Fs97-13/1346E-PDF

"The measurement of contaminants of concern in marine sediments in British Columbia (BC) helps to inform the administration of Disposal at Sea (DAS) by Environment and Climate Change Canada (ECCC) in accordance with the Canadian Environmental Protection Act (CEPA) and helps ECCC and Fisheries and Oceans Canada (DFO) to protect the habitat of the endangered Southern Resident killer whales (SRKW) and their primary prey Chinook salmon under the terms of the Species at Risk Act (SARA). Surficial sediment samples (n = 24) were collected by ECCC and DFO from two Disposal at Sea sites (Point Grey and Sand Heads) and at sites located both inside and outside SRKW Critical Habitat. Samples were analyzed for 13 contaminant classes Results reveal lower concentrations of PCBs, PBDEs, PCDDs, PCDFs, DDT, Alkylphenols, and metals inside Critical Habitat compared to outside Critical Habitat ..."--Abstract, page viii.

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