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Parabens in human urine from several Asian countries, Greece, and the United States.
Chemosphere 2018 June
Parabens, esters of para-hydroxybenzoic acid, are commonly used as antimicrobial preservatives in cosmetics and personal care products. Although several studies report exposure of humans to parabens in Western countries, little is known about exposure of humans to parabens in Asian countries. In this study, we determined concentrations of six parabens in spot urine samples collected from nine countries and estimated daily intakes (DI) and potential health risks of parabens. Ethyl-paraben, methyl-paraben, and propyl-paraben were detected frequently at 100, 98.0, and 80.3%, respectively, with representative median concentrations of 0.68, 7.02, and 1.21 ng/mL, respectively, for all nine countries. Urine samples from females (total median concentration: 32.3 ng/mL) contained significantly higher concentrations of parabens than did those from males (5.46 ng/mL). Urine samples from Korea (total median paraben concentration: 227 ng/mL) had the highest concentrations, which were one to two orders of magnitude higher than those found in other countries (3.67-29.1 ng/mL). The estimated DI of parabens (on the basis of concentrations measured in urine) varied widely, and several samples had propyl-paraben exposures above the acceptable DI. Our results suggest that paraben exposure is ubiquitous in Asian countries, and further assessment of potential health risk of these chemicals is needed.
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