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VOA慢速英语:防晒霜的化学物质会通过皮肤进入血液

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Sunscreen's Chemicals Go Through Skin to Bloodstream

防晒霜的化学物质通过皮肤进入血液

The active chemicals of commonly-used sunscreens end up in a wearer's blood. The U.S. Food and Drug Administration, or FDA, reported recently that the chemicals are present at much higher levels than current government health rules permit. For this reason, the researchers call for more safety studies.

通常使用的防晒霜中的有效化学物质最终会进入抹防晒霜的人的血液中。 美国食品与药物管理局(FDA)报告称近期这些化学物质的含量远远高于现今政府健康条例的规定。因此,研究人员呼吁进行更多的安全研究。

Sunscreens were first sold to prevent sunburn and did not have to meet many government regulations. Now they are widely used to block radiation from the sun that can cause skin cancer, the most common kind of cancer in the United States.

起初售卖的防晒霜用来防止被晒伤,并不需要满足许多政府的规定。现在,它们被广泛用于隔离来自太阳的辐射。这种辐射可以引起皮肤癌。它是美国最常见的癌症。

To test some of the effects of sunscreen, researchers worked with 23 volunteers. They tested four forms of sunscreen by putting it on most of the volunteers' bodies four times a day over four days. Then, they did blood tests over seven days to find the levels of certain chemicals absorbed into the volunteers' blood.

为了测试防晒霜的一些效果,研究人员和23名志愿者一起合作。他们通过将防晒霜涂抹到志愿者身体的大部分皮肤上,每天四次,为期四天,测试了四种防晒霜。然后,他们进行了七天的血液测试,以确定被志愿者血液吸收的某些化学物质的含量。

The study looked for the chemicals from sunscreen in plasma, the watery part of blood that contains blood cells. It found four chemicals to be well above the level at which FDA guidelines call for further safety testing. They are avobenzone, oxybenzone, octocrylene and in one sunscreen, ecamsule.

该研究从血浆内的防晒霜中寻找化学物质。血浆是血液中运载血细胞的液体部分。研究发现四种化学物质远远高于这个水平,对此FDA准则呼吁进一步进行安全测试。这四种化学物质分别为阿伏苯宗、氧苯酮、氰双苯丙烯酸辛酯还有存在于一种防晒中的依茨舒。

The effects of plasma concentrations above the FDA's limit is not known. The research team wrote in the Journal of the American Medical Association (JAMA) that there must be more studies on how the chemicals affect humans.

血浆中浓度高于FDA限量的化学物质所带来的影响还是未知的。研究团队在《美国医学协会杂志》这本杂志中写道,必须对这些化学物质如何影响人类做更多的研究。

But these results do not suggest that people should stop using sunscreen to protect against the sun's harmful ultraviolet (UV) rays, researchers said.

研究人员表示,但是这些结果并不能表明人们必须停止使用防晒霜来保护自己免受太阳紫外线的伤害。

Two researchers added their opinion in an article that followed the report. Robert Califf and Kanade Shinkai said the fact there were high levels of the chemicals in blood does not mean they are unsafe.

两名研究人员在这个报告之后在一篇文章中补充了他们的意见。罗伯特·卡利夫和立华奏·新开称,血液中存在高含量的化学物质这一事实并不意味着它们是不安全的。

"The study findings raise many important questions about sunscreen and the process by which the sunscreen industry, clinicians, specialty organizations, and regulatory agencies evaluate (its) benefits and risks.”

此次研究引发了关于防晒霜以及防晒生产制造商、临床医生、专业组织和管理机构评估其成效和风险的过程的诸多重要问题

David Andrews is a senior scientist at the nonprofit health and environmental advocacy group Environmental Working Group. He called for thorough testing of sunscreen ingredients.

大卫·安德鲁斯是环境工作组的一名资深科学家。环境工作组是非营利性健康和环境倡导组织。他呼吁彻底检测防晒霜的化学成分。

"For years the sunscreen chemical manufactures have resisted common sense safety testing for their ingredients and now FDA is proposing that these common ingredients must undergo additional testing to stay on the market," Andrews said.

“很多年防晒霜化学品制造商一直拒绝对其化学成分进行常规安全检查,现在FDA建议这些常见的化学成分必须经过额外的检测才能在市场上售卖,”安德鲁斯说。

However, the Personal Care Products Council trade association pointed out some problems with the study. They fear that people may not understand it well and could stop using sunscreen.

然而,个人护理用品委员会贸易协会指出了研究的一些问题。他们担心人们可能没能很好地理解这个研究而停止使用防晒霜。

The volunteers in the study put on two times as much sunscreen as people usually apply in everyday use, said Alexandra Kowcz, the group's chief scientist.

这个组织的主要科学家亚历山德拉·考兹称,研究中的志愿者涂防晒霜的量是人们日常使用防晒霜的两倍。

I'm Jill Robbins.

吉尔·罗宾斯为您报道。

Sunscreen's Chemicals Go Through Skin to Bloodstream

The active chemicals of commonly-used sunscreens end up in a wearer's blood. The U.S. Food and Drug Administration, or FDA, reported recently that the chemicals are present at much higher levels than current government health rules permit. For this reason, the researchers call for more safety studies.

Sunscreens were first sold to prevent sunburn and did not have to meet many government regulations. Now they are widely used to block radiation from the sun that can cause skin cancer, the most common kind of cancer in the United States.

To test some of the effects of sunscreen, researchers worked with 23 volunteers. They tested four forms of sunscreen by putting it on most of the volunteers' bodies four times a day over four days. Then, they did blood tests over seven days to find the levels of certain chemicals absorbed into the volunteers' blood.

The study looked for the chemicals from sunscreen in plasma, the watery part of blood that contains blood cells. It found four chemicals to be well above the level at which FDA guidelines call for further safety testing. They are avobenzone, oxybenzone, octocrylene and in one sunscreen, ecamsule.

The effects of plasma concentrations above the FDA's limit is not known. The research team wrote in the Journal of the American Medical Association (JAMA) that there must be more studies on how the chemicals affect humans.

But these results do not suggest that people should stop using sunscreen to protect against the sun's harmful ultraviolet (UV) rays, researchers said.

Two researchers added their opinion in an article that followed the report. Robert Califf and Kanade Shinkai said the fact there were high levels of the chemicals in blood does not mean they are unsafe.

"The study findings raise many important questions about sunscreen and the process by which the sunscreen industry, clinicians, specialty organizations, and regulatory agencies evaluate (its) benefits and risks.”

David Andrews is a senior scientist at the nonprofit health and environmental advocacy group Environmental Working Group. He called for thorough testing of sunscreen ingredients.

"For years the sunscreen chemical manufactures have resisted common sense safety testing for their ingredients and now FDA is proposing that these common ingredients must undergo additional testing to stay on the market," Andrews said.

However, the Personal Care Products Council trade association pointed out some problems with the study. They fear that people may not understand it well and could stop using sunscreen.

The volunteers in the study put on two times as much sunscreen as people usually apply in everyday use, said Alexandra Kowcz, the group's chief scientist.

I'm Jill Robbins.

_________________________________________________________________

Words in This Story

sunscreen – n. a lotion that you put on your skin to prevent sunburn by blocking out some of the sun's rays

regulation – an official rule or law that says how something should be done

absorb – v. to take in (something, such as a liquid) in a natural or gradual way

clinician – n. a person (such as a doctor or nurse) who works directly with patients rather than in a laboratory or as a researcher

evaluate – v. to judge the value or condition of (someone or something) in a careful and thoughtful way

benefit – n. something that produces good or helpful results or effects or that promotes well-being

advocacy – n. the act or process of supporting a cause or proposal

ingredients – n. one of the things that are used to make a food or product

apply – v. to lay or spread on

certain – adj. known but not named


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