游泳時(shí)防曬霜或成毒藥！

愛(ài)游泳的朋友們注意了，夏季外出游泳，不要再涂防曬霜了。最新研究表明，防曬霜中的化合物在與氯和紫外線發(fā)生反應(yīng)時(shí)，會(huì)變成有毒物質(zhì)。

7月2日，小朋友在河北省邢臺(tái)市橋東區(qū)春田公社水上樂(lè)園游泳。 連日來(lái)，華北地區(qū)持續(xù)高溫，人們參加各種水上娛樂(lè)活動(dòng)，避暑游玩，享受清涼。 新華社發(fā)(陳雷 攝)

Don't go swimming while wearing sunscreen - unless you want cancer.

除非你想得癌癥，不然千萬(wàn)別涂著防曬霜去游泳!

A compound used in the protective lotions turns toxic when it reacts with chlorine and ultraviolet rays, researchers found.

研究人員發(fā)現(xiàn)，一種存在于防曬霜中的化合物在與氯和紫外線發(fā)生反應(yīng)時(shí)，會(huì)變成有毒物質(zhì)。

Avobenzone is considered the most popular sun-blocker in the world due to its ability to absorb sunlight at different wave lengths - preventing skin damage.

阿伏苯宗是世界上最流行的防曬物質(zhì)，它能吸收不同波長(zhǎng)的陽(yáng)光以防止皮膚受損。

But Russian scientists suggest the UV-filtering compound forms cancer-causing toxins when exposed to a mixture of sun and chlorinated water.

但是俄羅斯科學(xué)家指出，這種能夠?yàn)V除紫外線的化合物與陽(yáng)光和含氯的水共同作用，會(huì)形成致癌毒素。

Aldehydes, phenols and chlorinated acetyl benzenes were created in experiments simulating swimmers wearing sunscreen.

他們?cè)谀M涂抹防曬霜游泳的實(shí)驗(yàn)中，發(fā)現(xiàn)反應(yīng)生成了醛、苯酚和氯化乙酰苯。

The latter two are considered extremely toxic and are strongly linked to deadly tumours and infertility, Lomonosov Moscow State University experts say.

莫斯科國(guó)立大學(xué)的專家說(shuō)，后兩種物質(zhì)是劇毒，會(huì)導(dǎo)致致命腫瘤和不孕癥。

While a study earlier this year hinted that aldehydes can raise the risk of cancer as they interfere with the body's natural repair mechanism.

并且今年早些時(shí)候的一項(xiàng)研究表明，醛類物質(zhì)會(huì)增加患癌癥的風(fēng)險(xiǎn)，因?yàn)樗鼈儠?huì)干擾人體的自然修復(fù)機(jī)制。

'Transforms in the water'

水中的轉(zhuǎn)變

Lead author Dr Albert Lebedev said: 'On the basis of the experiments one could make a conclusion that a generally safe compound transforms in the water and forms more dangerous products.

該研究的主要作者阿爾伯特•列別捷夫博士說(shuō)：“基于實(shí)驗(yàn)我們可以得出以下結(jié)論：一般狀態(tài)下安全的化合物會(huì)在水中產(chǎn)生變化，生成更具危險(xiǎn)性的物質(zhì)。”

'In spite of the fact that there are no precise toxicological profiles for the most established products, it's known that acetyl benzenes and phenols, especially chlorinated ones, are quite toxic.

“盡管還沒(méi)有對(duì)現(xiàn)有防曬產(chǎn)品建立確切的毒理學(xué)檔案，但我們已經(jīng)知道乙酰苯和苯酚，尤其是在氯化之后，毒性相當(dāng)大。”

'Studying the products of transformation of any popular cosmetics is very important as very often they turn out to be much more toxic and dangerous than their predecessors.

“研究任何流行化妝品的轉(zhuǎn)化產(chǎn)物都是很重要的，因?yàn)檫@些產(chǎn)物的毒性和危險(xiǎn)性往往都超過(guò)原來(lái)的物質(zhì)。”

'In principle, basing on such researches, one could obtain results, which could restrict or even put under a ban the usage of one or another product and preserve the health of millions of people.'

“原則上來(lái)說(shuō)，我們上述的研究，可能會(huì)導(dǎo)致人們限制甚至禁用某種或者某些產(chǎn)品，來(lái)保護(hù)數(shù)百萬(wàn)人的健康。”

How was the study carried out?

研究如何進(jìn)行?

The researchers used a scanning technique called chromatomass spectrometry to make their findings, published in Chemosphere.

發(fā)表于《臭氧層》雜志上的報(bào)告稱，研究人員使用了一種名為色譜-質(zhì)譜測(cè)定法的掃描技術(shù)進(jìn)行實(shí)驗(yàn)。

This technique, on laboratory cells, allows precise analysis of the most complex mixtures of chemical compounds.

應(yīng)用這種技術(shù)，研究人員可以利用實(shí)驗(yàn)室細(xì)胞精確分析最復(fù)雜的化學(xué)混合物。

For the study, they simulated the real situation when a sunscreen, applied on the skin of a swimmer, comes into contact with pool water.

在這項(xiàng)研究中，他們模擬了游泳者在涂上了防曬霜后，與泳池水接觸的真實(shí)情況。

The breakdown of avobenzone may take place right on the wet human skin, on which a sunscreen is spread.

阿伏苯宗可能就直接在涂了防曬霜的那塊兒浸濕的皮膚上發(fā)生分解。

Used by millions

數(shù)百萬(wàn)人使用

Sunscreen containing avobenzone are known to be applied by millions of people all over the world.

世界上數(shù)百萬(wàn)人口都在使用含阿伏苯宗的防曬霜。

Chemical UV filters like avobenzone absorb ultraviolet light due to the peculiarities of their structures. The substance in itself is safe.

諸如阿伏苯宗的一些化學(xué)防曬物質(zhì)，以其結(jié)構(gòu)特性吸收紫外線，它們本身是安全的。

As well as being common in sunscreen, they are also used in some personal care products, such as makeup, moisturisers and lip balms.

除了在防曬霜中很常見(jiàn)，它們還用于一些個(gè)人護(hù)理產(chǎn)品中，如化妝品、潤(rùn)膚乳和唇膏。

The researchers are now studying how avobenzone breaks down under conditions of chlorination and bromination of fresh and sea water.

研究人員目前正在研究阿伏苯宗是如何在淡水和海水的氯化和溴化條件下進(jìn)行分解的。

During chlorination or bromination of sea water the number of the breakdown products of avobenzone will be even wider.

在海水的氯化或溴化過(guò)程中，阿伏苯宗分解產(chǎn)物的數(shù)量將會(huì)更大。

And if water contains copper salts - which are added into many swimming pools for getting nice light-blue colour - then bromoform is formed in large quantities.

許多游泳池為了將水變成漂亮的淺藍(lán)色都添加了銅鹽，如果水中含有這種鹽，便會(huì)反應(yīng)生成數(shù)量巨大的溴仿(三溴甲烷)。

This substance could provoke dysfunctions of liver and kidneys - along with nervous system disorder, the experts implied.

專家認(rèn)為，這種物質(zhì)或能引發(fā)肝臟和腎臟功能的失調(diào)，同時(shí)伴隨著神經(jīng)系統(tǒng)的紊亂。