Can plastic chemicals be found in your pee and hair?
Sensitive Determination of Bisphenol A In Urine Using Automated Solid-Phase Extraction Followed by LC-MS/MS Analysis: Application to a Human Biomonitoring Study in Brazil
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists checked if a chemical from plastic, called BPA, gets into people's pee and hair by testing 100 Brazilians.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
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Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
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Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists checked if a chemical from plastic, called BPA, gets into people's pee and hair by testing 100 Brazilians.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 523 / 44
Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
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Claims (6)
When plastic containers are heated or scratched, chemicals called bisphenol A and phthalates can transfer into food and drinks. These same chemicals can be found unchanged in human urine after consumption.
In a study of people in Brazil, those who ate more canned foods had higher levels of BPA in their urine, and those who followed a healthier diet had higher levels of BPA in their hair.
Tests showed that the amount of bisphenol A (BPA) in people's urine and hair was lower than the safety limits set by health agencies, suggesting no significant health risk from exposure in this group.
In a group of 100 adults in Brazil, every urine sample contained detectable levels of Bisphenol A (BPA), with an average concentration of 0.86 nanograms per milliliter, suggesting widespread low-level exposure to this chemical in this population.
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 this chemical.