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The Canadian Radiological Monitoring Network – Environmental Dosimetry 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 here: http://www.hc-sc.gc.ca/ewh-semt/contaminants/radiation/crmn-rcsr/index-eng.php. This background radiation data contains both “monitoring” and “transit” dosimeters starting in 2015. The historical background radiation dose data can be found here: http://open.canada.ca/data/en/dataset/dc69b741-bcd4-4e0c-a3d3-f25bf9f34f03. 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 quarterly dose, which includes the transit time from and to our Ottawa location, is then normalised by dividing by the number of days in the field and multiplying by 30 days. This is the value that is displayed in the graphs. 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. 2020-08-18 Health Canada open-ouvert@tbs-sct.gc.ca Nature and EnvironmentRadioactivityenvironmental radioactivity monitoringradiation monitoringCanadian Radiological Monitoring NetworkCRMNHealth CanadaRadiation Protection BureauNational Monitoring Sectionbackgroundmonitoringexternal dose Environmental Dosimetry - DataCSV http://health.canada.ca/apps/open-data/crmn/nms_environmental_dosimetry_ssn_dosimetrie_environnementale.csv Environmental Dosimetry Graphs with textual descriptionHTML https://health.canada.ca/en/open-information/crmn/nms_environmental_dosimetry_ssn_dosimetrie_environnementale Environmental Dosimetry graphs with textual descripionHTML https://health.canada.ca/fr/open-information/crmn/nms_environmental_dosimetry_ssn_dosimetrie_environnementale

The Canadian Radiological Monitoring Network – Environmental Dosimetry

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 here: http://www.hc-sc.gc.ca/ewh-semt/contaminants/radiation/crmn-rcsr/index-eng.php.

This background radiation data contains both “monitoring” and “transit” dosimeters starting in 2015. The historical background radiation dose data can be found here: http://open.canada.ca/data/en/dataset/dc69b741-bcd4-4e0c-a3d3-f25bf9f34f03. 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 quarterly dose, which includes the transit time from and to our Ottawa location, is then normalised by dividing by the number of days in the field and multiplying by 30 days. This is the value that is displayed in the graphs. 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.

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Resource Name Resource Type Format Language Links
Environmental Dosimetry - Data Dataset CSV English
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Environmental Dosimetry Graphs with textual description Guide HTML English Access
Environmental Dosimetry graphs with textual descripion Guide HTML French Access
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