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邻苯二甲酸酯的膳食暴露及其在比利时学龄前儿童和成人食物中的来源。

Phthalates dietary exposure and food sources for Belgian preschool children and adults.

机构信息

Department of Public Health, Ghent University, UZ-2 Blok A, De Pintelaan 185, B-9000 Ghent, Belgium.

出版信息

Environ Int. 2012 Nov 1;48:102-8. doi: 10.1016/j.envint.2012.07.004. Epub 2012 Aug 9.

Abstract

Numerous studies have indicated that for phthalates, the intake of contaminated foods is the most important exposure pathway for the general population. Up to now, data on dietary phthalate intake are scarce and - to the authors' knowledge - not available for the Belgian population. Therefore, the purpose of this study was: (1) to assess the long-term intake of the Belgian population for eight phthalates considering different exposure scenarios (benzylbutyl phthalate (BBP); di-n-butyl phthalate (DnBP); dicyclohexyl phthalate (DCHP); di(2-ethylhexyl) phthalate (DEHP); diethyl phthalate (DEP); diisobutyl phthalate (DiBP); dimethyl phthalate (DMP), di-n-octyl phthalate (DnOP)); (2) to evaluate the intake of BBP, DnBP, DEP and DEHP against tolerable daily intake (TDI) values; and (3) to assess the contribution of the different food groups to the phthalate intake. The intake assessment was performed using two Belgian food consumption databases, one with consumption data of preschool children (2.5 to 6.5 years old) and another of adults (≥15 years old), combined with a database of phthalate concentrations measured in over 550 food products sold on the Belgian market. Phthalate intake was calculated using the 'Monte Carlo Risk Assessment' programme (MCRA 7.0). The intake of DEHP was the highest, followed by DiBP. The intake of BBP, DnBP and DEP was far below the TDI for both children and adults. However, for DEHP, the 99th percentile of the intake distribution of preschoolers in the worst case exposure scenario was equal to 80% of the TDI, respectively. This is not negligible, since other exposure routes of DEHP exist for children as well (e.g. mouthing of toys). Bread was the most important contributor to the DEHP intake and this may deserve further exploration, since the origin of this phthalate in bread remains unclear.

摘要

许多研究表明,对于邻苯二甲酸酯而言,受污染食物的摄入是普通人群最重要的暴露途径。截至目前,关于饮食中邻苯二甲酸酯摄入量的数据很少,而且——据作者所知——比利时人群尚无相关数据。因此,本研究的目的是:(1)评估考虑到不同暴露情景下,比利时人群对 8 种邻苯二甲酸酯的长期摄入量(苯二甲酸苄基丁基酯(BBP);邻苯二甲酸二正丁酯(DnBP);邻苯二甲酸二环己酯(DCHP);邻苯二甲酸二(2-乙基己基)酯(DEHP);邻苯二甲酸二乙酯(DEP);邻苯二甲酸二异丁酯(DiBP);邻苯二甲酸二甲酯(DMP),邻苯二甲酸二正辛酯(DnOP));(2)评估 BBP、DnBP、DEP 和 DEHP 的摄入量是否超过可耐受每日摄入量(TDI)值;(3)评估不同食品组对邻苯二甲酸酯摄入量的贡献。摄入量评估使用了两个比利时食品消费数据库,一个是幼儿(2.5 至 6.5 岁)的消费数据,另一个是成年人(≥15 岁)的消费数据,结合了在比利时市场上销售的 550 多种食品中测量的邻苯二甲酸盐浓度数据库。邻苯二甲酸酯的摄入量是使用“蒙特卡罗风险评估”程序(MCRA 7.0)计算的。DEHP 的摄入量最高,其次是 DiBP。对于儿童和成年人,BBP、DnBP 和 DEP 的摄入量均远低于 TDI。然而,对于 DEHP,在最坏情况下暴露情景下,学龄前儿童摄入量分布的第 99 百分位数等于 TDI 的 80%。这不容忽视,因为儿童还存在其他 DEHP 的暴露途径(例如,咬玩具)。面包是 DEHP 摄入量的最重要来源,这可能需要进一步探讨,因为面包中这种邻苯二甲酸酯的来源尚不清楚。

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