CIMP 223: Water chemistry of streams and rivers in permafrost peatland catchments of NWT and northern AB ...

• Main Author: University of Alberta; Department of Environment and Climate Change, Government of NWT
• Format: Dataset
• Language: English
• Published: DataStream 2024
• Subjects: Northwest Territories; permafrost
• Online Access: https://dx.doi.org/10.25976/2u7y-us49; https://datastream.org/dataset/12a892f6-183b-4139-8f24-ddd26edd4080

This project sampled 93 streams and rivers three times, once in each of July 2021, June 2022, and August 2022 throughout the Dehcho and South Slave regions of the Northwest Territories and Dene Tha' First Nation lands of northern Alberta. Water samples were collected to investigate the influence of climate and landscape on inland waters of the region and includes water data for methylmercury, mercury, dissolved organic carbon, metals, and ions. ... : Water samples were collected from the edge of each river or stream. Water for mercury and methylmercury analysis was collected using clean hands - dirty hands protocol in 125 mL and 250 mL bottles respectively. Two bottles of each were collected at each stream, one of which was filtered through acid cleaned 0.45 um cellulose nitrate filter towers into a new bottle within 24 hours. Hg and MeHg samples were preserved with 0.2% and 0.4% trace grade hydrochloric acid respectively. Additional grab samples were collected and filtered in the field using 0.7 um Whatman filters. We collected 2x60 mL amber glass bottles, one of which was preserved with hydrochloric acid and analyzed for dissolved organic carbon and cation analysis. The second remained un-acidified and was used for absorbance and fluorescence spectroscopy. A third 60 ml Nalgene LDPE bottle was collected and remained un-acidified for anion analysis. Measurements of pH, electrical conductivity, and water temperature were also collected at each stream ...