Signes-Pastor A J, Mitra K, Sarkhel S, Hobbes M, Burló F, de Groot W T, Carbonell-Barrachina A A
Departamento de Tecnologia Agroalimentaria, Universidad Miguel Hernández, Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain.
J Agric Food Chem. 2008 Oct 22;56(20):9469-74. doi: 10.1021/jf801600j. Epub 2008 Sep 19.
Arsenic (As) species were quantified by HPLC-HG-AFS in water and vegetables from a rural area of West Bengal (India). Inorganic species predominated in vegetables (including rice) and drinking water; in fact, inorganic arsenic (i-As) represented more than 80% of the total arsenic (t-As) content. To evaluate i-As intake in an arsenic affected rural village, a food survey was carried out on 129 people (69 men and 60 women). The data from the survey showed that the basic diet, of this rural population, was mainly rice and vegetables, representing more than 50% of their total daily food intake. During the periods when nonvegetarian foods (fish and meat) were scarce, the importance of rice increased, and rice alone represented more than 70% of the total daily food intake. The food analysis and the food questionnaires administrated led us to establish a daily intake of i-As of about 170 microg i-As day (-1), which was above the tolerable daily intake of 150 microg i-As day (-1), generally admitted. Our results clearly demonstrated that food is a very important source of i-As and that this source should never be forgotten in populations depending heavily on vegetables (mainly rice) for their diet.
采用高效液相色谱-氢化物发生-原子荧光光谱法（HPLC-HG-AFS）对印度西孟加拉邦一个农村地区的水和蔬菜中的砷（As）形态进行了定量分析。蔬菜（包括大米）和饮用水中以无机形态为主；实际上，无机砷（i-As）占总砷（t-As）含量的80%以上。为评估砷污染农村村庄居民的i-As摄入量，对129人（69名男性和60名女性）进行了食物调查。调查数据显示，该农村人口的基本饮食主要是大米和蔬菜，占其每日食物总摄入量的50%以上。在非素食食物（鱼和肉）短缺期间，大米的重要性增加，仅大米就占每日食物总摄入量的70%以上。食物分析和所发放的食物调查问卷使我们确定i-As的每日摄入量约为170微克i-As/天（-1），高于普遍认可的150微克i-As/天（-1）的可耐受每日摄入量。我们的结果清楚地表明，食物是i-As的一个非常重要的来源，对于严重依赖蔬菜（主要是大米）作为饮食的人群而言，绝不能忽视这一来源。
