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A new U.S. study has suggested another breastfeeding benefit, and the study has found that infants who are breastfed have lower arsenic levels than those who are fed with formula.
The study measured arsenic in home tap water, urine from six-week-old infants and breast milk from women in the U.S. state of New Hampshire.
It found that urinary arsenic concentrations were generally low but 7.5 times higher for infants fed exclusively with formula than infants fed exclusively with breast milk.
Researchers say the results highlight that breastfeeding can reduce arsenic exposure even at the relatively low levels of arsenic typically experienced in the United States; and this is an important public health benefit of breastfeeding.
They noted the findings also apply to newborns in other countries and regions.
breastfeed v. 哺乳，用母乳喂养 过去式和过去分词为breastfed
arsenic n. 砷，俗称砒，一种有毒的非金属元素。砷与其化合物被运用在农药、除草剂、杀虫剂和许多种类的合金中。少量的砷对身体有益。
formula n. 配方奶粉
tap water n. 自来水
urine n. 尿
New Hampshire n. 新罕布什尔州 位于美国新英格兰区域的一个州，因为盛产花岗岩而被称为“花岗岩州”。
urinary arsenic concentration n. 尿砷浓度 concentration除了最常用的专注、集中、汇集这几个意思外，也经常表示浓度。
例句：
According to the latest data, global ozone concentrations have dropped several percent over the last decade. （据最新数据显示，过去10年来全球臭氧的浓度降低了数个百分点。）
exclusively adv. 唯一地，专门地，独家地 对应的形容词exclusive使用频率更高。
例句：
If two people are exclusively dating each other, they are obviously ready for a serious relationship. （如果两人都是彼此唯一的交往对象，那他们显然已经做好了认真对待这份感情的准备。）
I don’t have any connections in the White House. It’s not realistic for me to score an exclusive interview with the POTUS. （我在白宫里可没什么熟人。指望我获得美国总统的独家专访不太现实。）
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