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Water chemistry data with geographic coordinates from lakes primarily in the Sudbury area of Ontario since 1981. Several lakes spread throughout the Sudbury acid rain damage zone had a natural buffering capacity protecting them from experiencing a severe drop in lake pH. Twenty-two of these lakes...

In 2017, the Ministry of Environment, Conservation, and Parks collected water and sediment from the Jackfish Bay ‘Area of Concern in Recovery’ study area, which included Moberley Bay, Tunnel Bay, and far-field sites in Jackfish Bay. This ‘Area of Concern in Recovery’ has been designated under...

This Alberta Official Statistic summarizes annual results of calculations of air quality index values as calculated by quality-assured and quality-controlled hourly ambient air quality data. It reports the number of hours of Poor and Very Poor air quality. It also includes an overview of the...

This dataset provides water quality analyses of lake surface samples and river samples collected throughout the ice-free season (May/June to October) from 2016 to 2019 from the Lake St. Clair nearshore, with a focus on the Thames River discharge area. Data includes nutrients and related...

This data set includes information on sampling locations, water chemistry and chlorophyll collected at 18 locations in the Great Lakes-St. Lawrence River and 4 locations in Lake Simcoe.

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...

The Wastewater Systems Effluent Regulations (WSER), developed under the Fisheries Act, came into force in 2012 to manage wastewater releases by systems that collect an average daily influent volume of 100 cubic metres or more. The WSER also does not apply to any wastewater system located in the...

​This report summarizes testing results from both the NCRMP and the fresh fruit and vegetable portion of the FSO Program in food samples collected between April 1, 2020 and March 31, 2021 (hereafter referred to as 2020/21). Over 95,000 tests for residues of veterinary drugs, pesticides, metals,...

This report ​​summarizes testing results from both the NCRMP and the fresh fruit and vegetable portion of the FSO Program in food samples collected between April 1, 2017 and March 31, 2018 (hereafter referred to as 2017/18). Nearly 120,000 tests for residues of veterinary drugs, pes​ticides,...

​This report summarizes testing results from both the NCRMP and the fresh fruit and vegetable portion of the FSO Program in food samples collected between April 1, 2019 and March 31, 2020. Over 113,000 tests for residues of veterinary drugs, pesticides, metals, and contaminants were performed on...