This site is currently in BETA. Further tweaks and additional data are on the way!

Welcome

This website gives you fast, easy access to detailed records of air pollution, water quality, climate conditions and land use for hundreds of communities across Canada. All the data on this site were collected by provincial and federal government agencies. The Sources page gives you more information about where the data come from and what some of the technical terms mean.


Background

The first edition of this website was developed in winter 2014 by Professor Ross McKitrick at the University of Guelph, with funding support from the Research Fellowship in Sustainable Commerce at the College of Business and Economics. The new edition was designed by Professor McKitrick in 2017 and developed by Sandbox Software Solutions. Additional funding support has been received from the Donner Canadian Foundation, Davis Engineering Ltd and the Frontier Centre for Public Policy.


Instructions

Air pollution data is divided into Pollutant Concentrations (the levels of contaminants in the local air measured at hundreds of places across Canada) and Annual Emissions (releases of contaminants into the air).


Concentration Data:
  • • Goes back to 1974 in many places.
  • • Navigation is by province then community.
  • • Click on the thumbnail to open an interactive chart.
  • • Different coloured dots represent different monitoring stations in that city. Click on a station in the legend to make it disappear from the chart. Click again to make it reappear.
  • • The default format has a vertical scale based on the maximum range for that pollutant in the Canada-wide record.
  • • The horizontal dashed line represents the tightest current air quality standard (Maximum Desirable Level). If there are two lines the upper one represents the Maximum Acceptable Level and the lower one represents the Maximum Desirable Level. See the Sources page for more details.
  • • You can click and drag on a section to zoom in on that interval.
  • • The mini-menu button lets you download the data or the graph itself, in various formats.

Emission Data:
  • • Goes back to 1990.
  • • Navigation is by province and nationally.
  • • Click on a sector in the legend to make it disappear from the chart; click again to make it reappear.
  • • See Sources page for more detail on sectors and contaminants.

Water Pollution Data:
  • • Includes levels of contaminants or measures of water quality in rivers across Canada
  • • Navigation is by province then river. Lake data will be added as it becomes available.
  • • Click on the thumbnail to open an interactive chart.
  • • Bear in mind that some graphs show a measure of pollution and others show a measure of water quality. Please read the information on the Sources page to understand what you are looking at.
  • • You can click and drag on a section to zoom in on that interval.
  • • The mini-menu button lets you download the data or the chart in various formats.

Climate Data:
  • • Includes Monthly Average Daytime Highs and Monthly Average Precipitation for hundreds of locations.
  • • Goes back to before 1900 in many places.
  • • Navigation is by data type (temperature or precipitation) then province then community.
  • • Click on the thumbnail to open an interactive chart.
  • • The default format for temperature has a vertical scale based on the typical range in the Canada-wide record (-40 C to +40C).
  • • You can click and drag on a section to zoom in on that interval.
  • • The mini-menu button lets you download the data or the chart in various formats.

Land Data:
  • • Includes the national breakdown of land use by major category and provincial forestry statistics.
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