Independent Environmental Monitoring Program: TRIUMF Accelerators Inc.

TRIUMF Accelerators Inc. (TRIUMF) is licensed by the CNSC to operate the TRIUMF facility, located in Vancouver, BC. TRIUMF operates multiple accelerator facilities for research in nuclear and particle physics, as well as accelerator-based science. TRIUMF has an environmental protection program to monitor and control radiological (nuclear) and non-radiological (hazardous) substances released from the facility, determine concentrations of contaminants in the environment and assess exposure to the public.

The Independent Environmental Monitoring Program (IEMP) results for 2016 indicate that the public and the environment in the vicinity of TRIUMF are protected, and that there are no expected health impacts.

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[ ] Guideline/Reference Level

 

Triumf

Showing 1 to 10 of 10 entries
Sample Type Sample Description Parameter 2016 Result Guideline/
Reference Level
Expected Health Impact (Yes/No) Background Sample Code
Air Iodine-131 < 0.0007 Bq/m3 0.228 Bq/m3 No N/A TR01-A01
Air Cesium-137 < 0.00005 Bq/m3 2.56 Bq/m3 No N/A TR01-A01
Air Cobalt-60 < 0.000057 Bq/m3 0.832 Bq/m3 No N/A TR01-A01
Air Iodine-131 < 0.0007 Bq/m3 0.228 Bq/m3 No N/A TR02-A02
Air Cesium-137 < 0.00005 Bq/m3 2.56 Bq/m3 No N/A TR02-A02
Air Cobalt-60 < 0.000057 Bq/m3 0.832 Bq/m3 No N/A TR02-A02
Soil 0 – 5 cm Cesium-137 2.4 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR01-S01
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR01-S01
Soil 0 – 5 cm Cesium-137 0.8 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR02-S02
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR02-S02
Soil 0 – 5 cm Cesium-137 3.2 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR03-S07
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR03-S07
Soil 0 – 5 cm Cesium-137 12.3 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR04-S03
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR04-S03
Soil 0 – 5 cm Cesium-137 5.9 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR05-S04
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR05-S04
Soil 0 – 5 cm Cesium-137 1.7 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR06-S05
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR06-S05
Soil 0 – 5 cm Cesium-137 2.4 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A TR07-S06
Soil 0 – 5 cm Cobalt-60 < 1 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A TR07-S06
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR01-V01
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR01-V01
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR02-V02
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR02-V02
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR03-V07
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR03-V07
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR04-V03
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR04-V03
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR05-V04
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR05-V04
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR06-V05
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR06-V05
Vegetation Cesium-137 < 5.9 Bq/kg fresh weight 76.9 Bq/kg fresh weight No N/A TR07-V06
Vegetation Cobalt-60 < 6.7 Bq/kg fresh weight 130 Bq/kg fresh weight No N/A TR07-V06

1 The < symbol indicates that a result is below the provided laboratory analytical detection limit.

2 N/A – not available

3 For radiological parameters where no guidelines exist, CNSC reference levels were established based on conservative assumptions using CSA standard N288.1-14. The reference level for a particular radionuclide in a particular medium (e.g., water, air, food) represents the activity concentration that would result in a dose of 0.1 mSv/a (millisieverts/year), a dose at which no health impacts are expected.

4 The presence of Cs-137 in environmental samples is not attributable to TRIUMF operations.

Background

Under the Nuclear Safety and Control Act (NSCA), licensees of nuclear facilities are required to implement an environmental monitoring program (EMP) to demonstrate that the public and the environment are protected from emissions related to the facility's nuclear activities. The results of these monitoring programs are submitted to the CNSC to ensure compliance with applicable guidelines and limits, as set out in regulations that oversee Canada's nuclear industry.

The CNSC has implemented its IEMP to verify that the public and the environment around licensed nuclear facilities are protected. It is separate from, but complementary to, the CNSC's ongoing compliance verification program. The IEMP involves taking samples from public areas around the facilities, and measuring and analyzing the amount of radiological and/or non-radiological substances in those samples. CNSC staff collect the samples and send them to the CNSC's state-of-the-art laboratory for testing and analysis. As part of the IEMP, the area outside of the TRIUMF facility perimeter was sampled in 2016.

2016 results

The 2016 IEMP sampling plan for the TRIUMF site focused on radiological contaminants. A site-specific sampling plan was developed based on the licensee's approved environmental monitoring program and the CNSC's regulatory experience with the site. In August 2016, samples were collected in publicly accessible areas outside the TRIUMF facility perimeter, and included air, vegetation and soil samples. View detailed sampling data.

The levels of radioactivity measured in air, vegetation and soil were below available guidelines and CNSC reference levels. CNSC reference levels are based on conservative assumptions about the exposure that would result in a dose of 0.1mSv/year. No health impacts are expected at this dose level. View detailed sampling data.

Conclusions

The IEMP results indicate that the public and the environment in the vicinity of TRIUMF are protected, and that there are no expected health impacts. These results are consistent with the results submitted by TRIUMF, demonstrating that the licensee's environmental protection program protects the health and safety of people and the environment.