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Found 10 records similar to Freshwater Inventory and Surveillance of Mercury: Sediment Quality Data

Federal

Annual freshwater quality monitoring data for 20 lakes across Canada. Parameters include total mercury, methylmercury, pH, alkalinity, specific conductance, colour, chlorophyll, nutrients, ions, dissolved inorganic and organic carbon, and total metals. In most years surface samples were collected from three locations on each lake, following nationally standardized protocols. Sampling occurred from 2008 to 2016, with six core lakes sampled throughout the eight-year period.

Last Updated: Jul. 30, 2021
Date Published: Nov. 20, 2017
Organization: Environment and Climate Change Canada
Formats: HTML TXT CSV
Keywords:  Environment, Water quality, Lakes, Surface water, Mercury, Water Quality, Freshwater, Monitoring, Surveillance
Federal

Annual fish monitoring data for 20 lakes across Canada. Collection season was standardized to provide temporal comparability within each lake. In most lakes, fishing occurred in the fall. Predator fish were limited to trout, pike or walleye, to facilitate spatial comparisons.

Last Updated: Feb. 23, 2018
Date Published: Jan. 5, 2018
Organization: Environment and Climate Change Canada
Formats: HTML TXT CSV
Keywords:  Environment, Water quality, Lakes, Surface water, Fish, Mercury, Water Quality, Freshwater, Fish
Federal

The Great Lakes Sediment Database (also known as the National Water Research Institute (NWRI) Sediment Archive) is an archive of data on the sediments of the Great Lakes, their connecting channels, and the St. Lawrence River which was collected by NWRI and in cooperation with other agencies between 1960 and 1975. It is housed in Environment and Climate Change Canada's Canada Centre for Inland Waters in Burlington, Ontario. The data has been subdivided into two groups according to location and purpose:

1.Great Lakes Basin Sediment Data: physical and geochemical data for sediment samples and cores collected lakewide in lakes Ontario, Erie, St. Clair, Huron (including Georgian Bay), Michigan and Superior between 1960 and 1975 by R.L. Thomas, A.L.W.

Last Updated: Dec. 7, 2021
Date Published: Aug. 4, 2016
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  Sediments, Great Lakes, water quality, trends, status, environment, surveillance, monitoring, sediment quality
Federal

Environmental quality data from water, fish and sediments in 20 lakes across Canada. Measurements include mercury, methylmercury, physical-chemical parameters such as pH and alkalinity, stable isotopes, fish biological data, nutrients, ions, and metals. The data collection includes sites with a period of record ranging from one year to eight years, starting in 2008. Fish analysed at each site include at least one top predator species and one prey species.

Last Updated: Feb. 23, 2018
Date Published: Jan. 5, 2018
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  Environment, Water quality, Lakes, Surface water, Fish, Mercury, Water quality, Freshwater, Fish
Provincial

This data set provides pesticide sample analyses results for stream sediment samples for the province’s Pesticide Monitoring Program. The sampling includes sampling a total of nine rivers across PEI, with three of the rivers being sampled each year. Sediment samples are collected once in July, twice in August (once during a normal/dry weather and once during wet weather), and once in September. The two samples in July and September are collected during dry weather.

Last Updated: Nov. 23, 2022
Date Published: May 29, 2018
Organization: Government of Prince Edward Island
Formats: XML HTML RDF CSV other RSS
Keywords:  pesticide, monitoring, stream, sediment
Federal

Monitoring activities have collected bulk suspended sediment samples using continuous flow centrifuges and Phillips Tube samplers in the Lower Athabasca River and tributaries respectively. Further, in the absence of pre-development monitoring for this region, high fidelity dated lake sediment cores were used to assess the natural range in contaminant deposition to this region and to obtain a historical perspective of contaminant loadings. All sediments (suspended river and lake cores) have been analyzed in the laboratory for sediment quality variables as per Appendix B in the Integrated Monitoring Plan (cores were also analyzed for paleo indicators of ecosystem health such as diatoms). In addition, as the Lower Athabasca river bed sediments are known to shift and migrate downstream, bathymetric maps of the bed-channel morphology over time was also completed.

Last Updated: May 20, 2022
Date Published: Dec. 30, 2014
Organization: Environment and Climate Change Canada
Formats: WMS CSV HTML ESRI REST
Keywords:  Water, Assess Toxicity; Manage and Monitor for Environmental Presence of Hazardous Substances and Waste, Monitor / Assess Substance and Waste Levels in Air; Water; Soil; Biota, Water - Drainage regions - Peace–Athabasca, Sediments, Oil sands
Federal

Sediment from Lakes

Polycyclic aromatic hydrocarbons (PAHs), 47 elements including numerous metals, and visible reflectance spectroscopy or VRS-chla have been determined in sediment core samples collected in 2012, 2013 and 2014 from 16 small (surface area 4-97 ha; maximum depth ~1-5 m deep), hydrologically simple lakes located 30 to 120 km from major oil sands development areas. Canadian Council of Ministers of the Environment (CCME) guidelines are available for 13 of the 53 PAHs reported here. Sediment concentrations did not exceed Canadian Council of Ministers of the Environment (CCME) probable effects levels (PELs), which define the level above which biological adverse effects are expected to occur, for PAHs in any lake. Exceedances of the CCME interim sediment quality guidelines (ISQG) for the protection of aquatic life occurred for 4 PAHs (naphthalene, 2-methyl naphthalene phenanthrene, and benzo(a)pyrene) in 8 lakes.

Last Updated: Jul. 22, 2021
Date Published: Oct. 31, 2014
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  sediment, sediment quality, sediment cores, lake, oil sands, metals, polycyclic aromatic hydrocarbons, physical, chemical
Federal

At offshore sites, triplicate Ponar grabs (0.052 m-2) of sediment were collected from the M/V Namao. At nearshore sites, sediment samples were collected from a smaller workboat using a Petite Ponar grab (0.023 m-2) at the 3 m depth contour. Total sampling effort varied across the three years owing to time and logistical constraints (see Supplemental Table S1 for additional detail). Additional samples were collected at up to 18 shoreline sites (depths ranging from 0.2 - 1.0 m) around the lake in 2019.

Last Updated: Jan. 14, 2022
Date Published: Nov. 15, 2021
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  Water quality
Federal

Sediment quality data from the Great Lakes collected to determine baseline status, long term trends and spatial distributions, the effectiveness of management actions, determine compliance with sediment quality objectives and identify emerging issues are included in this dataset.

Last Updated: Jun. 10, 2022
Date Published: Sep. 8, 2015
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  Great Lakes, Water quality, Trends, Status, Environment, Surveillance, Monitoring, Sediment quality, Ecosystem
Federal

Fisheries and Oceans Canada (DFO) Maritime Science Branch has collected grain size data from sediment and water column samples using bottle samples, sediment cores, and sediment grabs as part of numerous research projects not only in the Atlantic provinces, but also worldwide. The data collected by DFO focuses on the fine grained (<1mm) particles as these are both a source of food and means of contaminant transport. Grain size data are used to study the fate and distribution of complimentary chemistries like heavy metals, pesticides, hydrocarbons, aquaculture waste as well as a variety of physical processes such as the resuspension and transport of sediment.

Last Updated: May 18, 2021
Date Published: Oct. 21, 2020
Organization: Fisheries and Oceans Canada
Formats: PDF HTML CSV ESRI REST
Keywords:  Geomorphology, Hydropower, Sediments
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