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首页> 外文期刊>Journal of Hazardous Materials >Variety-specific arsenic accumulation in 44 different rice cultivars (O. sativa L.) and human health risks due to co-exposure of arsenic-contaminated rice and drinking water
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Variety-specific arsenic accumulation in 44 different rice cultivars (O. sativa L.) and human health risks due to co-exposure of arsenic-contaminated rice and drinking water

机译：由于砷污染的米饭和饮用水的共同暴露，44种不同水稻品种（O. Sativa L.）和人类健康风险的品种特异性砷累积

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Arsenic (carcinogenic) is a global health concern due to its presence in groundwater and subsequent accumulation in cultivated-rice via irrigation. The present work focused on the evaluation of arsenic concentration in groundwater, different cultivated-rice varieties (studied together for the first-time) and related health-risks. Arsenic in groundwater (0.26-0.73 mg/L) exceeded the World Health Organization limit for drinking water (0.01 mg/L). Arsenic concentration in rice-grains was found in the range: 0.0003-2.6 mg/kg dry-weights, where 42 rice varieties (out of total 44) exceeded the Codex Alimentarius Commission limit of polished-rice (0.2 mg/kg). The variety-specific differential-response of arsenic-accumulation was observed (first-time report), where high yielding rice varieties (HYV) were more prone to accumulate arsenic in comparison to local varieties (LV), however, 'Radhunipagol' (an aromatic LV) exhibited as a moderate arsenic-accumulator (BCF = 2.8). The cumulative estimated-daily-intakes (EDICumulative) of arsenic in central-tendency-exposure were observed to be 0.029, 0.031 and 0.04 mg/kg-day among children, teenagers and adults, respectively. The EDICumulative for possible reasonable-maximum-exposure among the above mentioned subpopulation was 0.038, 0.04 and 0.05 mg/kg-day, respectively. The evaluated Cumulative Hazard Index and Individual Excess Lifetime Cancer Risk values suggested that the studied population is under extremely severe cancerous and noncancerous risks to arsenic co-exposures via drinking water and rice.
机译：砷（致癌）是由于其在地下水中的存在和随后通过灌溉培养稻米积累的全球健康问题。目前的作品集中于对地下水，不同栽培水稻品种的砷浓度（第一次研究）和相关的健康风险评估。地下水中的砷（0.26-0.73 mg / L）超过了世界卫生组织饮用水的限制（0.01 mg / L）。水稻中的砷浓度在范围内：<0.0003-2.6mg / kg干重，其中42种稻米品种（共44个）超过了Codex Alimentarius委托策略限制（0.2mg / kg）。观察到砷积累的各种特异性差异（首次报告），其中高产水稻品种（HYV）与局部品种（LV）相比，累积砷（LV），但是Radhunipagol'（AN芳香LV）作为中等砷蓄电池（BCF = 2.8）。在中央倾向暴露中砷的累积估计 - 每日摄入量（砷化剂）分别观察到儿童，青少年和成年人之间的0.029,0.031和0.04毫克/千克/千克/千克。在上述亚群中可能合理最大暴露的ediculative分别为0.038,0.04和0.05mg / kg。评估的累积危险指数和个体过度的终身癌症风险值表明，研究人群受到通过饮用水和水稻的砷共同曝光的极其严重的癌性和非癌症风险。

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