文章基本信息

标题：Arsenic in Portuguese Rice: Is There Any Risk?
本地全文：下载
作者：Alexandra Silva ; André Pereira ; Liliana Silva 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2022
卷号：11
期号：3
DOI：10.3390/foods11030277
语种：English
出版社：MDPI Publishing
摘要：Arsenic is a metalloid with natural and anthropogenic sources and its inorganic form is toxic to humans. Rice is highly consumed worldwide and is prone to arsenic contamination; therefore, this study evaluated the inorganic arsenic content of 70 Portuguese rice samples. These were analysed through inductively coupled plasma mass spectrometry (ICP-MS) with a detection limit of 3.3 µg kg −1. The average contamination was of 29.3 µg kg −1, with brown and short rice presenting higher values than white and long rice. The highest concentration, 100 µg kg −1, equalled the maximum residue limit (MRL) for rice destined for infants’ consumption. The estimated daily intake (EDI) surpassed the benchmark dose (lower confidence limit 10%) (BMDL 10) of 0.3 µg kg −1 of bw/day considering children in the 95th percentile of rice consumption and the worst-case scenario concentration. However, other sources also contribute to the EDI and some population groups can exceed the BMDL 10.
关键词：enarsenicriceenvironmental contaminantsestimated daily intakerisk assessment