We collected air, water, sediment samples in the summer of 2019 from on board the CCGS Amundsen in the central and eastern Canadian Archipelago. We also collected air and water (grab and passive) from the CCGS Laurier in the Beaufort Sea and the R/V William Kennedy in the western Hudson Bay and Chesterfield Inlet. Air samples were continuously collected form the very front of the bow of the ship to reduce contamination from the smoke stack. The air sampler consisted of a filter to collect the particulate followed by a cartridge containing a sandwich of polyurethane foam and XAD resin to sorb the gas phase. Several types of water samples were collected: target compounds were concentrated from grab surface samples (200-L) by filtering through a column of XAD resin. Grab samples for flame retardants were collected in glass bottles and shipped back to the lab for processing. Grab samples for per-fluorinated compounds were collected at the surface and at two-three depths in plastic bottles and shipped back to the lab for processing. Sediment samples were collected from the box corer, the top 0-5cam was collected. Samples were frozen and shipped back to the lab for processing.
