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Welcome to the website of BARC (Bioaccessibility Research Canada)
BARC is a Canadian working group that brings together the university, industry, government,
and risk assessment communities to study inorganic and organic contaminant bioaccessibility
in soils found at contaminated sites in Canada. A priority objective of BARC is
to advance the scientific basis for incorporating bioaccessibility testing into site
specific human health risk assessments.
BARC Research Activities
BARC has a strong international component through close links established with Bioaccessibility
Research Group Europe (BARGE), the European equivalent to BARC, and through the initiation
of interlaboratory comparisons involving labs from Europe, United States and Canada.
An initial round robin was recently carried out to assess the variability in bioaccessibility
test results between labs using similar but different methods. Subsequent comparisons
will assess the variability among methods and identify methods that best predict
and correlate with in vivo studies.
BARC is undertaking the development of one or more Canadian reference materials.
These are critically needed to support bioaccessibility/ bioavailability research
and for the development of performance standards that will ensure the consistency
and reliability of data produced.
BARC members are involved in research investigating the influence of soil characteristics,
chemical speciation, and method variables on bioaccessibility estimates.
All of these activities are helping to advance the meaningful incorporation of bioaccessibility
into contaminated sites risk assessment.
BARC is supported in large part by contributions from the Contaminated Sites Division
of Health Canada.
If you wish to find out more about BARC please direct your enquiries to: