Myanmar is a major rice exporter. Rice is an important source of nourishment for its population. However, rice can be contaminated with toxic elements, including arsenic, long-term exposure to which has been linked to several illnesses, including cancer. There is a paucity of published data on arsenic in Myanmar rice. This study analysed rice (n = 50) from southern, middle and northern Myanmar for both total arsenic (T-As) (by ICP-MS) and inorganic arsenic (i-As) (by species-specific hydride generation ICP-MS or HPLC-ICP-MS). The mean concentration of T-As was 110 μg kg(IQR 75-142 μg kg), of which 86 μg kg (IQR 58-113 μg kg) was high toxicity i-As. The calculated mean i-As intake arising from typical consumption of this rice normalised to typical body weights in Myanmar was approximately 1 μg.kg-bw.day, close to the recently withdrawn WHO, PTWI of 2.1 μg.kg-bw.dayand higher than the EFSA reported BMDL for skin cancers of 0.06 μg.kg-bw.day.
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| http://dx.doi.org/10.1016/j.heliyon.2024.e40987 | DOI Listing |
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