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Arsenic Accumulation in Rice (Oryza sativa): An Overview

Accumulation of arsenic (As) in rice is highly variable across the globe and depends on a number of factors. Presently, there are no set standards on what can be considered as a regulatory concentration in rice, yet studies related to As toxicity to humans are abundant. This study is an overview of the range of As concentrations in rice grown globally and examples of the relevant contributing factors. Based on this overview, As concentration in rice can range from 0.01 to 0.8 mg kg -1 , and some of the factors that can cause it are growing conditions, varieties, soils and water quality.

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