OTTAWA - Health Canada has released the results of its survey of benzene levels
in selected beverages sold in Canada. Based on these results, Health Canada has confirmed the safety
of these products.
Health Canada's study found that in more than 80 percent of the 118 products tested, benzene was
either not detected or found at levels below the lowest concentration that can be reliably measured.
Overall, four products were found that had levels above the Canadian guideline of five micrograms
per litre for benzene in drinking water.
While these four products did have benzene levels above the guidelines for drinking water, Health
Canada scientists found that exposure to benzene through these beverages does not pose a health concern.
In addition, the potential exposure to benzene from beverage consumption would constitute a relatively
small portion of overall lifetime exposure from other sources.
Nonetheless, Health Canada has worked with the manufacturers to address this issue and where necessary,
the beverage industry has responded by reformulating products.
Benzene is a known human carcinogen and can form in drinks when ascorbic acid combines with either
sodium benzoate or potassium benzoate, which are common preservatives used to prevent bacteria growth.
However the presence of ascorbic acid and benzoates alone does not lead to the formation of benzene.
Certain conditions are required for trace levels of benzene to form, including heat, ultraviolet
light and metallic ions in the mixture.
Trace amounts of benzene were first found in soft drinks in the early 1990s. At that time, Health
Canada and other regulatory agencies, including the United States Food and Drug Administration, worked
with the soft drink industry to determine how the benzene was formed and what production practices
were required to remedy the situation. This experience has shown that by controlling processing conditions
and formulation, trace amounts of benzene can be virtually eliminated.
Although the scientific evidence continues to support the safety of soft drinks and other beverages
sold in Canada, Health Canada and the Canadian Food Inspection Agency will continue to work with
the beverage industry to ensure that the formation of benzene during manufacturing is eliminated
from beverages sold in Canada.
Many countries, including the United
States, Australia,
and the United
Kingdom, have reached similar conclusions as Canada after conducting their own studies.
To view the complete results, please view Health
Canada's benzene study.
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Media Inquiries:
Carole Saindon
Health Canada
(613) 957-1588
Public Inquiries:
(613) 957-2991
1-866 225-0709
