Description

This dataset provides the background radiation dose results from Health Canada’s Canadian Radiological Monitoring Network (CRMN) monitoring sites. More information about the CRMN network can be found on the Health Canada website (see link below). This background radiation data contains both “monitoring” and “transit” dosimeters starting in 2016. The historical background radiation dose data can be found on the Open Data portal. A transit dosimeter is sent along with the monitoring dosimeter to determine if there is a significant dose recorded by the dosimeter while it is in transit to the sampling station. The transit dosimeter is shipped out with a station monitor, and shipped back with the station monitor from the previous quarter. The monitoring dosimeters are deployed over a longer time (around three months) than the transit dosimeters (around 3 weeks). This difference largely explains the lower recorded dose values for the transit dosimeter. The results provided for the monitoring and transit dosimeters are expressed as ambient dose equivalent to a cesium source, in units of millisieverts (mSv). The measured dose rate is reported in mSv/day. The external dose can be attributed almost exclusively to natural radiation (of terrestrial and cosmic origin) with fluctuations based on several factors including location, soil characteristics, and seasonal changes. The map shows the approximate sampling location for each monitoring station. Stations are found within the associated location range.

Resources

Name	Format	Description	Link
Environmental Dosimetry - Data	CSV		https://download-telecharger.services.geo.ca/pub/hc_sc/Radioactivity_Radioactivite/environmental_dosimetry/nms_environmental_dosimetry_ssn_dosimetrie_environnementale.csv
Environmental Dosimetry Graphs with textual description	Unknown		https://ftp.maps.canada.ca/pub/hc_sc/Radioactivity_Radioactivite/environmental_dosimetry/Graphs/NMS Environmental Dosimetry_ SSN Dosim%c3%a9trie environnementale.pptx
Environmental Dosimetry	Ersi REST		https://maps-cartes.services.geo.ca/server_serveur/rest/services/HC/environmental_dosimetry_en/MapServer
Environmental Dosimetry	Ersi REST		https://maps-cartes.services.geo.ca/server_serveur/rest/services/HC/environmental_dosimetry_fr/MapServer
Environmental Dosimetry	WMS		https://maps-cartes.services.geo.ca/server_serveur/services/HC/environmental_dosimetry_en/MapServer/WMSServer?request=GetCapabilities&service=WMS
Environmental Dosimetry	WMS		https://maps-cartes.services.geo.ca/server_serveur/services/HC/environmental_dosimetry_fr/MapServer/WMSServer?request=GetCapabilities&service=WMS
Historical data	HTML		https://open.canada.ca/data/en/dataset/dc69b741-bcd4-4e0c-a3d3-f25bf9f34f03
CRMN - supporting information	HTML		https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/understanding/measurements.html

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