Urinary parabens, bisphenol A and triclosan in primiparas from Shenzhen, China: Implications for exposure and health risks

This study aims to investigate urinary levels of parabens, bisphenol A and triclosan of 84 primiparas from Shenzhen, China and to evaluate their potential health risks. Methyl, ethyl, and n-propyl parabens bisphenol A and triclosan exhibited high detection rates (DRs) (>  97%) in urine samples, suggesting that primiparas are exposed to them widely. The median concentrations of methyl, ethyl, and n-propyl parabens, bispenol A and triclosan in urine were 2.14, 4.10, 0.46, 1.30 and 3.00 µg/L, respectively. Ethyl paraben was the predominant paraben accounting for ne arly half of Σ3parabens (The sum concentrations of methyl, ethyl, n-propyl parabens). Positive associations with significance (p <  0.05) were found between the usage of plastic containers and urinary concentrations of ethyl paraben or BPA, indicating plastic containers might be an important factor influencing primipara exposure to these two chemicals. Urinary concentrations of methyl paraben were positively associated (p <  0.05) with the time of computer use by participant, suggesting that indoor dust might constitute an important source of parabens. The estimated daily intakes of parabens, bisphenol A and triclosan contrasted with the acceptable daily intakes in a comparatively low level. The hazard quotients (HQs ) of these chemicals were all less than 1, suggesting no health risks for primiparas from South China.
Source: Journal of Environmental Health Science and Engineering - Category: Environmental Health Source Type: research