The Canadian Radiological Monitoring Network – Strontium-90 in Milk

This dataset provides results obtained by Health Canada’s Canadian Radiological Monitoring Network (CRMN) for 90Sr activity in milk samples originating from various locations across Canada. More information about the CRMN network can be found on the Health Canada website (see link below). From 1984 to 1993, data was collected from 20 locations. After 1993, routine milk analysis for radio-strontium activity was discontinued for all monitoring stations, except the Ottawa location. The results provided here are 90Sr activity concentrations in units of becquerels per litre (Bq/L). Milk is an important matrix for environmental radioactivity assessment since many radionuclides of health concern exhibit efficient soil to milk uptake pathways. As such, the surveillance of milk provides a very good indication as to the severity of environmental impact following a nuclear event. Strontium-90 (90Sr) is a radionuclide of particular concern because it has a long radiological and biological half-life coupled with a high affinity for incorporation into human bone and teeth. Nuclear weapons testing and nuclear accidents have released such long-lived radionuclides into the atmosphere, which in turn have entered the biological life cycle. Nevertheless, a steady decline in the activity concentration of 90Sr in milk can be seen since most of the nuclear weapon testing was halted in the 1960s. The map shows the approximate sampling location for each monitoring station. Stations are found within the associated location range.

Simple

Date ( RI_366 )
2020-11-18
Date ( RI_367 )
2021-03-29
RI_414
  Government of Canada;Health Canada
775 Brookfield Road , Ottawa , Ontario , K1A 0K9 , Canada
1 (613) 954-6647
Status
onGoing; enContinue RI_596
Maintenance and update frequency
asNeeded; auBesoin RI_540
Keywords ( RI_528 )
  • environmental radioactivity monitoring
  • analyse du lait
  • radiation monitoring
  • strontium-90
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Radioactive materials
  • Health
  • Radioactivity
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
eng; CAN
Metadata language
fra; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Health
  • Environment
Begin date
1984-01
N
S
E
W
thumbnail


Reference system identifier
http://www.epsg-registry.org / EPSG:3978 /
Distribution format
  • ESRI REST ( 10.7.1 )

  • WMS ( 1.3.0 )

RI_410
  Government of Canada;Health Canada;Healthy Environments Consumer Safety Branch - ( )
775 Brookfield Rd , Ottawa , Ontario ,
RI_412
  Government of Canada;Natural Resources Canada - ( )
Sherbrooke ,
OnLine resource
Strontium-90 in Milk - Data ( HTTPS )

Dataset;CSV;eng,fra

OnLine resource
Strontium-90 in Milk ( ESRI REST: Map Server )

Web Service;ESRI REST;eng

OnLine resource
Strontium-90 in Milk ( ESRI REST: Map Server )

Web Service;ESRI REST;fra

OnLine resource
Strontium-90 in Milk ( HTTPS )

Web Service;WMS;eng

OnLine resource
Strontium-90 in Milk ( HTTPS )

Web Service;WMS;fra

OnLine resource
CRMN - supporting information ( HTTPS )

Supporting Document;HTML;eng,fra

OnLine resource
Strontium-90 in Milk - Data Dictionary ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Strontium-90 in Milk - Data Dictionary ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Strontium 90 in Milk Graphs with Textual description ( HTTPS )

Supporting Document;HTML;eng

OnLine resource
Strontium 90 in Milk Graphs with Textual description ( HTTPS )

Supporting Document;HTML;fra

File identifier
12acd145-626a-49eb-b850-0a59c9bc7506 XML
Metadata language
fra; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-06-12T13:22:01
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada;Natural Resources Canada
Canada
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords


Provided by

Associated resources

Not available