Arsenic in Rice Grown in Low-Arsenic Environments in Bangladesh

摘要: It has previously been reported that rice grown in regions of Bangladesh with low-arsenic (As) concentrations irrigation water can have relatively high As within their grains. This study aims to determine how widespread this issue is, and the seasonal variation grain these regions. Levels were measured shallow tube well (STW) water, soils, grains collected during Boro (dry) Aman (wet) seasons from six Upazilas (sub-districts) where levels groundwater known be low. In all Upazilas, STW <50 μg L−1. The soil samples ranged between 0.2–4.0 mg kg−1 season, 0.4–5.7 mg kg−1 season. both varied widely: 0.02–0.45 mg kg−1, 0.01–0.29 mg kg−1. Additionally, a household survey dietary habits was also conducted one Upazila by estimating ingestion 15 head female members. On average, women consumed 3.1 L 1.1 kg cooked rice, 42 g dry weight curry per day. total rates 31.1–129.3 μg day−1 (mean 63.5 μg kg−1). These findings indicate major route low groundwater-As areas is followed then water.