These files contain the NPRI map layers in KMZ format for use in Google Earth™ and other “virtual globe” software. Facilities visualized can be filtered by province and by industry type. When selected, each facility generates its own summary report of their releases, disposals and transfers, with hyperlinks directing to the NPRI query site.
The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling. Under the authority of the Canadian Environmental Protection Act, 1999 (CEPA 1999), owners or operators of facilities in Canada that meet the published reporting requirements are required to report to the NPRI. Reported pollutants include toxic substances, air pollutants and other substances of concern.
More NPRI datasets and mapping products are available here: https://www.canada.ca/en/environment-climate-change/services/national-pollutant-release-inventory/tools-resources-data/access.html