Datasets
Search for specific datasets or use filters to explore our data.
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Fish Contaminants
Ministry: Environment, Conservation and Parks
Data on fish contaminants is collected across Ontario. Contaminants are chemicals that could be harmful to environment and human health. Toxic contaminants can enter in...Resource formats:
- XLSX
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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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Inland Waters Lakes and Streams – Biological Communities
Ministry: Environment, Conservation and Parks
This dataset includes information on biological communities in lakes and streams across Ontario since 1976. Biological communities sampled include: crayfish Data were...Resource formats:
- CSV
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Air Quality in Ontario 2015
Ministry: Environment, Conservation and Parks
The Air Quality in Ontario Report summarizes the state of ambient air quality in 2015 and 10 year trends for key airborne pollutants affecting Ontario's air quality.Resource formats:
- CSV
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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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Lake Simcoe Monitoring
Ministry: Environment, Conservation and Parks
The Lake Simcoe lake monitoring program provides measurements of chemical and physical water quality limits such as total phosphorus, nitrogen, chlorophyll a, pH, alkalinity,...Resource formats:
- ZIP
- SHP
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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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Well Records
Ministry: Environment, Conservation and Parks
This dataset provides information submitted by well contractors as prescribed by Regulation 903, and is stored in the Water Well Information System (WWIS). Spatial information...Resource formats:
- ZIP
- SHP
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Licensed Well Contractors
Ministry: Environment, Conservation and Parks
Directory of Licensed Well Contractors This directory lists all well contractors licensed in Ontario. Listings in the directory should not be taken as advice or a...Resource formats:
- CSV
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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 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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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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Drinking Water Quality and Enforcement
Ministry: Environment, Conservation and Parks
Ontario has a comprehensive set of measures and regulations to help ensure the safety of drinking water. The following dataset contains information about the drinking water...Resource formats:
- ZIP
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Permit to Take Water
Ministry: Environment, Conservation and Parks
Companies or organizations who take over 50,000 litres of water/day from a lake, river, stream or groundwater source, must obtain a Permit to Take Water from the Ministry of the...Resource formats:
- SHP
- XLS
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School board financial reports (estimates, revised estimates and financial statements)
Ministry: Education
Includes financial data of school boards including revenues (e.g. ministry grants, grants from other ministries, education property taxes) and expenses (e.g. classroom...Resource formats:
- ZIP
- CSV
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Smog Advisory Statistics (Ambient Air Quality Network)
Ministry: Environment, Conservation and Parks
The ministry monitors air pollution levels and issues smog advisories when there is strong likelihood that widespread, elevated, and persistent smog levels are expected. This...Resource formats:
- XLS
- CSV
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Air Quality Alerts
Ministry: Environment, Conservation and Parks
This dataset summarizes the number of air quality alerts issued to the public for Ontario and by air quality forecast region for individual years to the current available year.Resource formats:
- XLSX
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Police Use of Force Race-Based Data
Ministry: Solicitor General
The Anti-Racism Act, 2017 and its associated regulation and guidance require the Ministry of the Solicitor General to collect and analyze race-based data in police use of force....Resource formats:
- CSV
- XLSX
- DOCX
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Pesticide Concentrations in Stream Water
Ministry: Environment, Conservation and Parks
This dataset contains measurements of pesticide concentrations in stream water samples collected at selected streams in Ontario. The Ministry of the Environment, Conservation...Resource formats:
- CSV
- XLSX
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Landfill Gas Collection, Use and Destruction
Ministry: Environment, Conservation and Parks
This dataset provides a summary of information reported by landfills regarding their landfill gas collection (LFG), methane destruction and/or use, and associated emission...Resource formats:
- XLSX