现在，一项人类研究发现了双酚A含量和男性精子质量之间有密切关联，结果并不乐观。
A human study has found strong links between BPA levels and semen quality, and the findings are not looking good.
一些州和其他一些国家已经禁止了双酚a。
There are some states and other countries that have outlawed bisphenol a.
人们在使用含有双酚a的产品时就会接触到它。
People can be exposed to BPA by using BPA-containing products.
上个月加拿大宣称：双酚a是有毒化学物质。
双酚a数十年来一直被用于生产婴儿奶瓶和其他塑料容器。
Bisphenol a has been used for decades to make baby bottles and other plastic containers.
研究人员同时还调查了该地区没有双酚a职业接触的工厂的工人。
Researchers also identified workers from factories with no occupational exposure to BPA in the work environment in the same regions.
此前的研究发现在接触双酚a的产业工人身上甚至具有更高的浓度。
Previous studies in factory workers exposed to BPA found even higher levels.
双酚a和许多健康问题有关联，包括肥胖症、乳腺癌、心脏病以及其他疾病。
And bisphenol a has been associated with a bunch of health problems, including obesity, breast cancer, heart disease and others.
埃克塞特大学的学者也敦促制造商减少食品包装和容器中的双酚a用量。
The Exeter University academic also urged manufacturers to cut down on BPA in food packaging and containers.
斯卡贝克指出，动物实验已经表明，双酚a是一种弱雌性激素，会加快老鼠的青春期发育。
Skakkabaek points out that animal experiments have shown that Bisphenol a is a weak oestrogen that can accelerate pubertal development in mice.
临床试验表明动物可能会受双酚的影响，但是这些双酚含量不足以危害人体健康。
While animals may be affected by the chemical in clinical studies, these levels aren't enough to cause harm to humans.
双酚a一般用于食品和饮料包装，其分子作为复合聚合物的一部分，通常是固定的。
BPA is commonly used in food and drink packaging, where the molecule is usually locked in as part of a complex polymer.
尽管我们已经知道双酚A是一种弱雌性激素，人们还是认为应用于塑料聚碳酸酯中足够安全。
“In spite of the fact we have known that Bisphenol A was a weak oestrogen, it was considered safe enough to use in polycarbonate in plastic, ” Skakkabaek says.
新的研究准备探索胚胎发育领域，看怀孕期间接触双酚a是否会对胎儿发育产生毒害作用。
New studies are looking to embryonic development, to see whether BPA exposure during pregnancy is having any deleterious effects on development.
这种名叫双酚A的工业化学品已经证实与许多疾病有关，包括生殖激素紊乱、心血管疾病以及癌症。
The common industrial chemical bisphenol A (BPA) has been linked to many ills, including reproductive abnormalities, cardiovascular disease and cancer.
布劳恩强调人们一天顶多接触很少几张打印凭据，热敏纸不可能是接触双酚A的主要来源。
Braun notes that for people who handle only a couple of receipts a day, thermal paper is unlikely to be a major source of exposure.
肥胖还与缺乏睡眠、接触某些化学物质(像用于制造塑料瓶的双酚a)、甚至与在我们肠内找到的细菌类型有关。
Obesity is also correlated with lack of sleep, with exposure to certain chemicals (like bisphenol a, used in making plastic bottles), even with the type of bacteria that is found in our intestines.
过去曾对双酚a对雄性动物的生殖系统影响进行过研究，而对人的生殖能力影响的研究，现在还是第一次。
Both studies are the first to look at BPA's reproductive effect in humans. The adverse effect of BPA on the male reproductive system previously had been examined in animal studies only.
在检测的12罐罐装食品中均发现了不同程度的双酚(BPA)含量。双酚是一种雌激素化学物质，与乳腺癌发生有关。
A new study of several leading brands of kids' canned foods has found various levels of bisphenol a (BPA), an estrogenic chemical that has been linked to breast cancer, in 12 cans tested.
双酚a是一种内含在塑料瓶装水，奶瓶和金属罐，甚至收款机收据上的化学物质，它会增加患乳癌和心脏病的风险。
BPA, a chemical often found in plastic water and baby bottles and metal cans-even cash register receipts-has been linked to increased risk for breast cancer and heart disease.
双酚a，在许多塑料产品中常用的一种物质，现在已经被加拿大写在有毒物质的清单上了，但是，在美国，它仍然被认为是安全的。
Bisphenol a, a common compound found in many plastics, has been listed as a toxic substance in Canada but is still deemed safe in the U.S..
“现在我们已经注意到了双酚a可能会对健康产生影响，接下来需要弄清楚的是这些联系后面的机制是怎样的。”梅尔策说。
"Given the obvious concern that BPA might be driving these health effects, we now need to clarify the mechanism behind these associations," Melzer says.
一些州和其他一些国家已经禁止了双酚a。可问题是，这仅仅以一些零零碎碎的法规而告终，这些法规没有连贯性，也没有任何保证。
There are some states and other countries that have outlawed bisphenol A. the problem, of course, is that you end up with this patchwork of regulations and no consistency or guarantee.
斯卡贝克说，早在60年前，在他们尝试生产一种阻止流产的合成雌性激素时，科学家就已经首次发现双酚a可能有雌性激素的作用。
Skakkabaek says that scientists first detected the oestrogenic potential of Bisphenol a almost 60 years ago, when they were trying to produce a synthetic oestrogen to prevent miscarriages.
长期以来，人们一直怀疑三氯沙和双酚A是否对身体健康有影响，而现在关键的问题是低浓度下的这些物质是否会对人类产生影响。
Both triclosan and BPA have long been suspected of causing health problems, the 100 million dollar question is whether we should worry about the low-level exposure most of us get.
双酚a，也称BPA，用来生产防碎塑料，工业上又叫作聚碳酸酯。BPA无处不在，从矿泉水瓶、医疗器械到及食品包装的内里，都有它的身影。
Bisphenol A. Also called BPA, it's used to make shatter-proof plastic known as polycarbonate, found in everything from water bottles to medical devices to the lining of food packaging.
双酚a，也称BPA，用来生产防碎塑料，工业上又叫作聚碳酸酯。BPA无处不在，从矿泉水瓶、医疗器械到及食品包装的内里，都有它的身影。
Bisphenol A. Also called BPA, it's used to make shatter-proof plastic known as polycarbonate, found in everything from water bottles to medical devices to the lining of food packaging.
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