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BPA is a known estrogen mimicker that is used in the production of polycarbonate plastic.

BPA(双酚A)类似女性荷尔蒙用于聚碳酸酯塑胶品的生产中。

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BPA is a substrate for estrogen sulfotransferase, and bisphenol A sulfate (BPAS) and disulfate are substrates for estrone sulfatase.

BPA是一个磺酸转移酶的底物,且二苯A硫酸盐(BPAS)和脱硫酸盐是酮硫酸酯酶的底物。

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SciSHow 小科普

Anyway, how bad can BPA actually be?

不管怎样,BPA 实际上有多糟糕?

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SciSHow 小科普

See, BPA is what’s known as an endocrine-disrupting chemical.

看,BPA 是一种众所周知的内分泌干扰化学物质。

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SciSHow 小科普

Those chains are pretty chemically inactive, but the trouble comes when unreacted BPA molecules stick around in the plastic.

这些链条的化学性质非常不活泼,但当未反应的 BPA 分子粘中时,题就了。

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SciSHow 小科普

Even though there’s been a fair amount of research on BPA, we still don’t know if it’s completely safe.

尽管对 BPA 进行了大量研究,但我们仍然不知道它是否完全安全。

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SciSHow 小科普

Animal studies have linked BPA to all sorts of problems, like decreased fertility, impaired fetal development, obesity, and cardiovascular diseases.

动物研究已将 BPA 与各种题联系起,例如生育能力下降、胎儿发育受损、肥胖和心血管疾病。

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Lots of studies have found BPA is bad, but they don’t always agree on how or why.

许多研究发现双酚 A 是有害的,但他们并不总是就如何或为什么达成一致。

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SciSHow 小科普

Because BPA is a hormone disruptor, it might act differently from other toxic substances.

由于 BPA 是一种激素干扰物,它的作用可能与其他有毒物质不同。

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SciSHow 小科普

BPA is short for bisphenol A, and it’s one of the most common ingredients in a type of hard, clear plastic called polycarbonate.

BPA 是双酚 A 的缩写,它是一种称为聚碳酸酯的硬质透明中最常见的成分之一。

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SciSHow 小科普

For one thing, laboratory conditions don’t mimic the way we interact with BPA very well, in terms of dosage or exposure.

一方面,就剂量或暴露而言, 实验室条件并不能很好地模仿我们与 BPA 相互作用的方式。

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Having them labeled that way makes it seem like a dangerous chemical, but you can find BPA in all sorts of things.

以这种方式标记它们会使它看起像是一种危险化学品,但你可以各种各样的东西中找到 BPA。

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China Daily 最新合辑

BPA is known to affect the reproductive systems of laboratory animals, but the impact on human health requires more research, according to the US Centers for Disease Control and Prevention.

据美国疾病控制与预防中心称,已知双酚 A 会影响实验动物的生殖系统,但对人类健康的影响还需要更多的研究。

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China Daily 最新合辑

The majority of receipts at some of the US' biggest store and restaurant chains contain " toxic chemicals" such as bisphenol A, or BPA, according to new research.

一项最新研究显示,美国最大的商店和餐饮连锁店的收据大多都含有“有毒化学物质”,如双酚 A(BPA)。

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China Daily 最新合辑

The chemical has been found in the urine of almost all people who were tested by the CDC, with the agency noting this indicates " widespread exposure to BPA" among Americans.

美国疾控中心几乎所有接受检测的人的尿液中都发现了这种化学物质。该机构指出,这表明美国人“广泛接触双酚 A”。

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SciSHow 小科普

Right now, the US Food and Drug Administration sets the safe level for BPA exposure at half a microgram per kilogram of body weight per day.

目前,美国食品和药物管理局将 BPA 暴露的安全水平设定为每天每公斤体重半微克。

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So while BPA isn’t definitely terrible for humans, it might not hurt if manufacturers phase it out, especially when it comes to things like baby bottles.

因此,虽然 BPA 对人类说并不是绝对可怕,但如果制造商逐步淘汰它可能不会造成伤害, 尤其是涉及到婴儿奶瓶之类的东西时。

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China Daily 最新合辑

The study noted the share of retailers and other chains using receipts that contain BPA or BPS has declined since it last tested for the chemicals, decreasing from 93% in 2017 to 80% now.

该研究指出,自上次对双酚 A(BPA) 或双酚 S (BPS) 进行检测以,使用含有双酚 A 或双酚 S 收据的零售商和其他连锁店的比例有所下降,从 2017 年的 93% 下降到现的 80%。

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