Datasets
Search for specific datasets or use filters to explore our data.
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Water Chemistry (Great Lakes Nearshore Areas)
Ministry: Environment, Conservation and Parks
Data is collected each year, according to the lake-by-lake cycle. Information includes: water chemistry physical conditions including light profiles approximately 80 index and...Resource formats:
- ZIP
- CSV
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Municipal Treated Wastewater Effluent
Ministry: Environment, Conservation and Parks
The flows and effluent quality data is for the parameters of: Biological Oxygen Demand BOD5/CBOD5 Total Suspended Solids (TSS), also described as Residual Particulate Solids...Resource formats:
- XLSX
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Industrial Wastewater Discharges
Ministry: Environment, Conservation and Parks
Industrial wastewater monitoring data submitted quarterly to the Ministry of the Environment. This reporting is required by the Effluent Monitoring and Effluent Limits...Resource formats:
- XLS
- XLSX
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Provincial Groundwater Monitoring Network
Ministry: Environment, Conservation and Parks
The Provincial Groundwater Monitoring Network (PGMN) datasets report on ambient (baseline) groundwater level and chemistry conditions. Groundwater monitoring mapResource formats:
- SHP
- ZIP
- XLSX
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Air Quality Stations
Ministry: Environment, Conservation and Parks
The air monitoring stations measure up to 6 common pollutants like: ground-level ozone fine particulate matter nitrogen dioxide carbon monoxide sulphur dioxide total reduced...Resource formats:
- CSV
- ZIP
- TXT
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Provincial (Stream) Water Quality Monitoring Network
Ministry: Environment, Conservation and Parks
Provides stream water quality monitoring data for a number of parameters, including total and dissolved nutrients, metals, and chloride. The Provincial (Stream) Water Quality...Resource formats:
- CSV
- XLSX
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Ontario Benthos Biomonitoring Network
Ministry: Environment, Conservation and Parks
Get data describing benthic-invertebrate (bottom dwelling aquatic invertebrates) community structure and habitat conditions in various waterbodies. This dataset includes:...Resource formats:
- ZIP
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Inland Lakes and Streams – Water Chemistry
Ministry: Environment, Conservation and Parks
This data set includes information on water quality of lakes and streams across Ontario since 1976. It includes: major anions and cations nutrients chlorophyll metals Data...Resource formats:
- ZIP
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Ontario Lake Partner
Ministry: Environment, Conservation and Parks
Get data about the water quality for Ontario's inland lakes. The data is collected through volunteer monitoring efforts – citizen science. The Lake Partner environment map...Resource formats:
- CSV
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Broadscale Monitoring Program Lake Water Chemistry
Ministry: Environment, Conservation and Parks
In 2005, the Province of Ontario implemented its Ecological Framework for Recreational Fisheries Management, a component of which was the establishment of standardized,...Resource formats:
- CSV
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Ontario water and weather monitoring stations
Ministry: Natural Resources and Forestry
Point locations of water and weather monitoring stations used by the Surface Water Monitoring Centre to assess flood and drought conditions across Ontario. Monitoring station...Resource formats:
- SHP