Open Government Portal
We are performing scheduled maintenance from 7:00 a.m. to 5:00 p.m. Eastern Time on Saturday, November 7, 2026.
About this information
Open data is defined as structured data that is machine-readable, freely shared, used and built on without restrictions.
The key things to remember about open data are:
- #Availability and access#: the data must be available as a whole and at no more than a reasonable reproduction cost, preferably by downloading over the internet. The data must also be available in a convenient and modifiable form.
- #Re-use and redistribution#: the data must be provided under terms that permit re-use and redistribution including the intermixing with other datasets.
- #Universal participation#: everyone must be able to use, re-use and redistribute. There should be no discrimination against fields of endeavour or against persons or groups. For example, 'non-commercial' restrictions that would prevent 'commercial' use, or restrictions of use for certain purposes (e.g. only in education), are not allowed.
In the ADAGIO product, observational data are collected from precipitation chemistry and air monitoring networks comprising a few hundred stations …
This collection presents Canada’s international agreements focused on reducing air pollution and preventing marine pollution from ships. The resources include …
The Air Pollutant Emission Inventory (APEI) is an annual report of air pollutant emissions across Canada published by Environment and …
Regional distributions of annual emissions for 29 particulate elements were developed for the Athabasca oil sands region (AOSR) in northern …
Regional distributions of annual emissions for 16 polycyclic aromatic hydrocarbons (PAHs) and 21 Alkylated PAHs were developed for the Athabasca …
Active PM2.5 sampling is collected at the Wood Buffalo Environmental Association (WBEA) Air Monitoring Stations: Mannix (AMS5), Lower Camp (AMS11) …
Environment and Climate Change Canada (ECCC) began ambient air monitoring of several nitrogen and sulphur species southeast of the Athabasca …
The objective of the Canadian Wildlife Service (Ontario Region) Acid Rain Biomonitoring Program (ARBP) was to evaluate the response of …
We publish Canada’s greenhouse gas (GHG) and air pollutant emissions projections annually. These projections help measure progress in reducing emissions …
This map data displays environmentally impacted sites in Saskatchewan with location, confirmed substance and current status.
The Ministry of …