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- Title
Arsenic in Portuguese Rice: Is There Any Risk?
- Authors
Silva, Alexandra; Pereira, André; Silva, Liliana; Pena, Angelina
- Abstract
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%) (BMDL10) 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 BMDL10.
- Subjects
BROWN rice; INDUCTIVELY coupled plasma mass spectrometry; ARSENIC poisoning; ARSENIC; RICE
- Publication
Foods, 2022, Vol 11, Issue 3, p277
- ISSN
2304-8158
- Publication type
Article
- DOI
10.3390/foods11030277