The Canadian Radiological Monitoring Network - Pilot Program for Radioactivity in Atmospheric Deposition
Health Canada’s Canadian Radiological Monitoring Network (CRMN) is a national network that routinely collects environmental samples for radioactivity analysis. More information about the CRMN network can be found here: https://www.canada.ca/en/health-canada/services/environmental-workplace-health/environmental-contaminants/environmental-radiation/canadian-radiological-monitoring-network.html As part of the regular network, deposition samples are collected from all stations and analysed on an as-needed basis.
Starting in 2020, the CRMN established a pilot program with the goal of measuring the radioactivity of selected isotopes found in total atmospheric deposition, which is comprised of precipitation (rain, snow), particulates, and aerosols. These samples are collected monthly from deposition samplers at network stations and analysed for gross alpha and gross beta, tritium and gamma emitting radionuclides. This dataset represents the results collected during the pilot phase.
Gross alpha and gross beta are an indicator of total radionuclide content and measured by gas proportional counting. If gross activity measurements are elevated, further detailed analysis can be performed. The level of radioactivity from tritium is determined by liquid scintillation counting. Gamma spectroscopy allows for the detection and measurement of specific radionuclides including common naturally occurring beryllium 7, lead 210, and, rarely, man-made cesium 137 & 134, and iodine 131.
The results provide information on radioactivity concentration, uncertainty and the minimum detectable concentration.
Datasets available for download
Additional Info
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| Last Updated | October 20, 2025, 02:54 (UTC) |
| Created | October 20, 2025, 02:54 (UTC) |
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Domain / Topic
Domain or topic of the dataset being cataloged.
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Title
Title for the Dataset.
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The Canadian Radiological Monitoring Network - Pilot Program for Radioactivity in Atmospheric Deposition |
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Description
A description of the dataset.
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Health Canada’s Canadian Radiological Monitoring Network (CRMN) is a national network that routinely collects environmental samples for radioactivity analysis. More information about the CRMN network can be found here: https://www.canada.ca/en/health-canada/services/environmental-workplace-health/environmental-contaminants/environmental-radiation/canadian-radiological-monitoring-network.html As part of the regular network, deposition samples are collected from all stations and analysed on an as-needed basis. Starting in 2020, the CRMN established a pilot program with the goal of measuring the radioactivity of selected isotopes found in total atmospheric deposition, which is comprised of precipitation (rain, snow), particulates, and aerosols. These samples are collected monthly from deposition samplers at network stations and analysed for gross alpha and gross beta, tritium and gamma emitting radionuclides. This dataset represents the results collected during the pilot phase. Gross alpha and gross beta are an indicator of total radionuclide content and measured by gas proportional counting. If gross activity measurements are elevated, further detailed analysis can be performed. The level of radioactivity from tritium is determined by liquid scintillation counting. Gamma spectroscopy allows for the detection and measurement of specific radionuclides including common naturally occurring beryllium 7, lead 210, and, rarely, man-made cesium 137 & 134, and iodine 131. The results provide information on radioactivity concentration, uncertainty and the minimum detectable concentration. |
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Keywords/tags categorizing the dataset.
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Format (CSV, XLS, TXT, PDF, etc)
File format of the dataset.
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Dataset Size
Dataset size in megabytes.
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Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
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Published Date
Published date of the dataset.
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2023-03-21 |
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Time Period Data Span (start date)
Start date of the data in the dataset.
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Time Period Data Span (end date)
End date of time data in the dataset.
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GeoSpatial Area Data Span
A spatial region or named place the dataset covers.
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Access category
Type of access granted for the dataset (open, closed, service, etc).
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License
License used to access the dataset.
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Open Government Licence - Canada |
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Limits on use
Limits on use of data.
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Location
Location of the dataset.
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https://open.canada.ca/data/en/dataset/de113672-d813-4a88-965a-d99922485812 |
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Data Service
Data service for accessing a dataset.
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Owner
Owner of the dataset.
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Health Canada | Santé Canada |
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Contact Point
Who to contact regarding access?
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Contact Point Email
The email to contact regarding access?
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Publisher
Publisher of the dataset.
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Publisher Email
Email of the publisher.
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Author
Author of the dataset.
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Author Email
Email of the author.
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Accessed At
Date the data and metadata was accessed.
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Identifier
Unique identifier for the dataset.
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Language
Language(s) of the dataset
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Link to dataset description
A URL to an external document describing the dataset.
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Persistent Identifier
Data is identified by a persistent identifier.
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Globally Unique Identifier
Data is identified by a persistent and globally unique identifier.
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Contains data about individuals
Does the data hold data about individuals?
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Contains data about identifiable individuals
Does the data hold identifiable data about individual?
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Contains Indigenous Data
Does the data hold data about Indigenous communities?
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Portal Type
Platform type of the source portal.
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Version
Version of the datatset
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None |
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Source
Source of the dataset.
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None |
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Version notes
Version notes about the dataset.
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Is version of another dataset
Link to dataset that it is a version of.
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Other versions
Link to datasets that are versions of it.
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Provenance Text
Provenance Text of the data.
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Provenance URL
Provenance URL of the data.
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Temporal resolution
Describes how granular the date/time data in the dataset is.
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GeoSpatial resolution in meters
Describes how granular (in meters) geospatial data is in the dataset.
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GeoSpatial resolution (in regions)
Describes how granular (in regions) geospatial data is in the dataset.
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Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
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Community Permission
Community permission (who gave permission).
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The Indigenous communities the dataset is about
Indigenous communities from which data is derived.
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Number of data rows
If tabular dataset, total number of rows.
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Number of data columns
If tabular dataset, total number of unique columns.
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Number of data cells
If tabular dataset, total number of cells with data.
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Number of data relations
If RDF dataset, total number of triples.
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Number of entities
If RDF dataset, total number of entities.
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Number of data properties
If RDF dataset, total number of unique properties used by the triples.
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Data quality
Describes the quality of the data in the dataset.
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Metric for data quality
A metric used to measure the quality of the data, such as missing values or invalid formats.
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