TLDR
Rice and rice foods sold in Poland generally contained arsenic below legal limits, and usual adult intake appeared low. Babies and young children could face harmful exposure when eating more contaminated products or larger portions.
Summary
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1 Study Aim
The study aimed to measure total arsenic (tAs), meaning all arsenic forms, in rice and popular rice products sold in Poland. The authors also estimated inorganic arsenic (iAs), the more harmful form, using three possible shares of tAs: 67.7%, 72.7%, and 90%. They assessed exposure among adults, infants, and young children. The study further estimated weekly product amounts intended to avoid increased cancer risk. The research examined how much arsenic Polish consumers might receive from rice products, especially vulnerable young children.
2 Study Design
Researchers bought 120 products from six manufacturers in Szczecin, Poland, during 2023. The sample included white rice, brown rice, rice cakes, and rice noodles. They measured tAs using hydride-generation inductively coupled plasma optical emission spectrometry (HG-ICP-OES), an instrument method for detecting arsenic. Quality checks used blank samples and certified rice flour. Risk calculations considered adults, infants aged six to twelve months, and three-year-old children. Four scenarios combined average or maximum contamination with usual Polish consumption or threefold higher intake. The analysis used estimated daily intake, exposure margins, and lifetime cancer risk. The researchers compared typical and worst-case exposure across four product groups and three age groups.
3 Findings
Measured tAs ranged from 69.5 to 227.8 micrograms per kilogram. Brown rice had the highest average level, followed by rice noodles, rice cakes, and white rice. All calculated iAs levels were below European legal limits. Average Polish consumption suggested no clear threat for adults. However, infants and young children could face concern under maximum contamination and threefold higher consumption. The study estimated weekly limits of 32.2 grams for infants, 68.7 grams for children under three, and 243 grams for adults. The authors recommend varied grains and products with low arsenic results from testing and inspections. They also call for further studies using complete diets and national consumption patterns. Usual adult intake looked low, but larger portions and highly contaminated products could endanger young children.