4.8 Article

Human exposure to organophosphate esters in water and packed beverages

Journal

ENVIRONMENT INTERNATIONAL
Volume 175, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.envint.2023.107936

Keywords

Beverages; Dietary intake; EHDPP; Human exposure; Organophosphate esters; Plasticizers

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Drinks are a significant source of human exposure to plasticizers like OPEs. This study analyzed OPE levels in various drink samples and found that tap water had higher levels compared to packed water, possibly due to PVC water pipes. Regular cola drinks had the highest OPE concentrations, particularly EHDPP. Although OPE exposure was below safety limits, the potential health risks from regular cola drinks, juice, and tap water should not be ignored, and other exposure routes should also be considered.
Drinks are an essential part of human diet, which makes them a source of human exposure to plasticizers such as organophosphate esters (OPEs). The current study provides new information about sixteen OPE levels in 75 different samples (tap water, packed water, cola drinks, juice, wine and hot drinks). Tap water mean levels (40.9 ng/L) were statistically higher than packed water mean levels (4.82 ng/L), mainly due to the contribution of tris (2-chloroisopropyl) phosphate (TCIPP) and tris(2-butoxyethyl) phosphate (TBOEP) that may come from PVC water pipes. Over 90% of samples presented at least one OPE, where regular cola drinks had the highest mean concentrations (2876 ng/L). There was a significantly higher presence of OPEs in added sugar beverages than sugar free drinks, especially for 2-ethylhexyl diphenyl phosphate (EHDPP), which might be related not only to packaging materials but to the added sugar content. Estimated daily intakes (EDIs) in normal and high-exposure scenarios were 2.52 ng/kg bw/day and 7.43 ng/kg bw/day, respectively. Human risk associated with beverages ingestion showed regular cola drinks, juice and tap water as the groups with the highest hazard quotients (HQs). Although OPE exposure was below to safety limits, it should be noted that EHDPP values for regular cola group must be cause of concern, and other routes of exposure such as food ingestion or air inhalation should be also considered.

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