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Bisphenol A  

Health Canada Survey of Bisphenol A in Bottled Water Products
The current dietary exposure to BPA through food packaging is not expected to pose
a health risk to the general population, including newborns and young children.
Based on the average BPA level found in polycarbonate bottled water products (1.5
μg/L*), an adult (60 kg body weight) would have to consume approximately 1000 L of
bottled water from polycarbonate carboys in one day to approach the TDI set by Health
Canada’s Food Directorate. For the specific population who consume water packaged
only in polycarbonate carboys, the exposure to BPA would increase from 0.18 to 0.22
μg/kg body weight assuming an average of 1.5 μg/L* of BPA in polycarbonate bottled
water and an average daily water consumption of 1.5 L.

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Ridding BPA products could prove a challenge

TORONTO — When most Canadians open their kitchen cupboards, they're sure to find at least one product packaged in a container made with bisphenol A.
The controversial chemical, expected to soon be designated a toxic agent by the federal government, is a mainstay of products consumers use every day - from water and baby bottles to liners in food and beverage cans to sealants used in dental fillings.
Bisphenol A, or BPA, allows manufacturers to make a rigid and translucent product known as polycarbonate plastic, often - but not always - identified by a triangle surrounding the number 7. In canned food and beverages, especially acidic vegetables and fruits, BPA-resin liners stop the contents from eroding the metal container.

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There are many different polycarbonate and epoxy products, with different use
patterns and exposure situations. This is reflected in different migration patterns,
which regulators consider in their safety assessment. The typical migration levels and exposure scenarios are correlated with different body weights. Comparing the
results with the defined safe limits, expressed as Tolerable Daily Intake (TDI), the message remains the same: products made from materials based on BPA are safe for their intended uses.

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New Data from CDC Confirms Human Exposure to Bisphenol A in the United States is Far Below Safe Limits

The US Centers for Disease Control and Prevention (CDC) has recently published biomonitoring data on bisphenol A from a large-scale study that is representative of the US population. That data indicates that typical human daily intake of bisphenol A is approximately 50 nanograms/kg bodyweight/day. These levels are about 1 million times below the levels where no adverse effects on reproduction and development were observed in comprehensive multi-generation animal studies. Likewise, these levels are about 1 thousand times below lifetime daily intake levels conservatively set by government bodies in the US and Europe. Exposures below the lifetime daily intake levels are expected to have no adverse effect on health.
Overall, the CDC data indicates that human exposure to bisphenol A is very low and strongly supports the conclusion that exposure to bisphenol A poses no known risk to human health.

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