In a group of people from Brazil, Bisphenol A was found in nearly half of their hair samples at an average level of 4.8 nanograms per gram, indicating that hair could be used to measure exposure to...
Mechanism
Synthesis from 1 study
When people come into contact with Bisphenol A, it gets into their blood and slowly gets trapped in their hair as it grows. This trapped amount stays there and can be measured later, which is why hair can show if someone was exposed to the chemical.
Most probable mechanism
When people are exposed to Bisphenol A, the chemical enters their bloodstream and slowly moves into hair as it grows, sticking to the hair shaft in small amounts that can be measured later.
Bisphenol A is absorbed into the bloodstream through ingestion, inhalation, or dermal contact.
The chemical circulates systemically in plasma and reaches the hair follicle region.
Bisphenol A passively diffuses into the keratinizing cells of the hair shaft during follicular growth.
Once incorporated into the hair structure, Bisphenol A is trapped and remains detectable as the hair grows and is shed.
Evidence from Studies
Supporting (1)
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Contradicting (0)
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Gold Standard Evidence Needed
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