It is derived from arsenic and has many undesirable side effects.

该药由砷衍生，有多种不良副作用。

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Of the patients suffering from arsenic-fluoride poisoning, the incidence of dental caries and periodontal is higher while the morbidity of mottled enamel is lower.

砷氟联合中毒患者中龋齿和牙周病的患病率较高，而氟牙症的患病率较低。

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A third approach — growing paddy rice aerobically in raised beds — reduces the mobilization of soil arsenite and "can dramatically decrease arsenic transfer from soil to grain," McGrath says.

第三个方法是在培育床上供氧种植水稻，麦格拉思认为，这可以减少动员土壤中的砷，而且“可以大大减少土壤中的砷转移至粮食的量。”

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Its active ingredient is arsenic salt, which is derived from arsenic stone, not unique to China but long used to treat fevers, depression and arthritis.

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Among those: eliminating polyvinyl chloride and brominated flame retardants from all its products by 2009, and removing mercury and arsenic from its products' displays.

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Alcan, a Canadian aluminium company, says it will help villagers in Bangladesh to remove arsenic from their water supplies.

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