Raw data collected using a creative webcam and an acryllic hemispherical mirror dome installed on the roof of the wheelhouse of the CCGS Amundsen. Data were collected from summer to fall 2009 in the Southern Beaufort Sea and Amundsen Gulf areas.

Microplastics (MPs) contaminate the oceans from the poles to the equators and from the sea surface to the deep sea. In addition, MPs have been recorded in freshwater systems, including in lakes, rivers and streams globally. Not only an aquatic issue, MPs infiltrate terrestrial ecosystems in landfills, agricultural settings, along beaches, and even in the air. It therefore comes as no surprise that MPs have been identified as a global pollutant of concern that is capable of long-range transport and causing adverse effects in wildlife, but limited information is available for Canadian Arctic regions. Consequently, the NCP has identified assessing the presence and distribution of MPs in Arctic marine ecosystems a priority. The Arctic Monitoring and Assessment Programme (AMAP) has also added Marine Plastics and MPs to their list of Chemicals of Emerging Arctic Concern. We collected water, sediment and zooplankton for MPs in the summer of 2019 as a part of ArcticNet from on board the CCGS Amundsen. Additional water and sediment samples were collected from the R/V William Kennedy in western Hudson Bay and Chesterfield Inlet as a part of GENICE. Water samples were collected by bucketing surface water and filtered through a polycarbonate filter that captured the microplastics. Sediment samples were collected from push cores in a box corer, the top 0-5cm was collected. Zooplankton samples were collected from Tucker Nets using 250um mesh size and then speciated. All samples were distributed to collaborators at Universities of Toronto, McGill and Western Ontario for further processing and analysis. Analysis will be done by FTIR and/or Raman Spectroscopy.

Air and water samples were collected from on board the CCGS Amundsen in the fall of 2013 as a part of ArcticNet and the Northern Contaminants Program (NCP). These samples were collected to determine the occurrence and levels of legacy pesticides and new and emerging priority compounds under the Canadian Chemical Management Plan. Analysis was done by gas chromatograph-mass spectrometer (GC-MSD) and liquid-chromatography mass spec mass spec (LC-MS/MS).

Air, water, phytoplankton and zooplankton samples were collected on board the CCGS Amundsen in October 2011 as part of ArcticNet between Kugluktuk, NT and Quebec City, QC via Baffin Bay. The samples were analysed for legacy organochlorine pesticides (OCPs), current use pesticides (CUPs), per and polyfluoroalkyl substances (PFAS) and organophosphate flame retardants and plasticizers (OPs). The purpose of collecting air and water samples in the Canadian Archipelago was i) to continue the time trends of OCPs and CUPs, ii) to confirm the presence of PFAS observed in recent years and iii) establish baseline concentrations of OPs. The phytoplankton and zooplankton samples investigation will allow quantification of the above compounds in the lower food web and observe how these compounds move from the abiotic to biotic environment. Analysis was done by gas chromatograph-mass spectrometer (GC-MSD) and liquid-chromatography mass spec mass spec (LC-MS/MS). Four OPs, tri-phenyl phosphate (TPP), tris-(2-chloro ethyl) phosphate (TCEP), tris-(2-chloro propyl) phosphate (TCPP) and tris-(1,2-dichloro propyl) phosphate (TDCPP) were identified in air samples for the first time in Canadian Arctic air and levels are very high compared to levels of total PBDEs and other brominated flame retardants at Alert (Xiao et al., 2012). Due to these findings, archive samples from Alert and previous ArcticNet cruises were also analysed for OPs, thus establishing baseline concentrations in Canadian Arctic air in which future trends can be compared.

Microplastics (MPs) contaminate the oceans from the poles to the equators and from the sea surface to the deep sea. In addition, MPs have been recorded in freshwater systems, including in lakes, rivers and streams globally. Not only an aquatic issue, MPs infiltrate terrestrial ecosystems in landfills, agricultural settings, along beaches, and even in the air. It therefore comes as no surprise that MPs have been identified as a global pollutant of concern that is capable of long-range transport and causing adverse effects in wildlife, but limited information is available for Canadian Arctic regions. Consequently, the NCP has identified assessing the presence and distribution of MPs in Arctic marine ecosystems a priority. The Arctic Monitoring and Assessment Programme (AMAP) has also added Marine Plastics and MPs to their list of Chemicals of Emerging Arctic Concern. We planned on collecting water, sediment and zooplankton for MPs in the summer of 2020 as a part of ArcticNet from on board the CCGS Amundsen. Unfortunately, due to the COVID-19 pandemic sampling on board the CCGS Amundsen for our project was cancelled.

The all-sky camera system consists of a Nikkon D-90 camera, with a wide-angle fisheye lens, a homemade enclosure with clear acrylic dome end-cap, and a small heater on a thermostat. The system is mounted on a small 'crows nest' above the wheelhouse on the CCGS Amundsen. Maintenance checks were performed daily.

The all-sky camera system consists of a Nikkon D-90 camera, with a wide-angle fisheye lens, a homemade enclosure with clear acrylic dome end-cap, and a small heater on a thermostat. The system is mounted on a small 'crows nest' above the wheelhouse on the CCGS Amundsen. Maintenance checks were performed daily.

The all-sky camera system consists of a Nikon D-90 camera, with a wide-angle fish-eye lens, a homemade enclosure with clear acrylic dome end-cap, and a small heater on a thermostat. The system is mounted on a small 'crows nest' above the wheelhouse on the CCGS Amundsen. Maintenance checks were performed daily.

Air, water and sediment samples were collected from on board the CCGS Amundsen and passive water samplers were deployed on the moorings in the summer of 2014 as a part of ArcticNet and Northern Contaminants Program (NCP). These samples were collected to determine the occurrence and levels of legacy pesticides and new and emerging priority compounds under the Canadian Chemical Management Plan. Analysis was done by gas chromatograph-mass spectrometer (GC-MSD) and liquid-chromatography mass spec mass spec (LC-MS/MS).

Air, water (grab and passive) and zooplankton samples were collected from on board the CCGS Amundsen in the summer of 2016 as a part of ArcticNet and the Northern Contaminants Program. These samples were collected to determine the occurrence and levels of legacy pesticides and new and emerging priority compounds under the Canadian Chemical Management Plan. Additionally, archived sediment and filtered water samples were screened for and found microplastics.