防晒霜对珊瑚礁有毒
文章来源:未知 文章作者:enread 发布时间:2015-10-22 01:09 字体: [ ]  进入论坛
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The daily use of sunscreen bearing an SPF of 15 or higher is widely acknowledged as essential to skin cancer prevention, not to mention skin damage associated with aging. Though this sunscreen may be very good for us, it may be very bad for the environment, a new Tel Aviv University study finds. New research published in Archives of Environmental Contamination and Toxicology finds that a common chemical in sunscreen lotions2 and other cosmetic3 products poses an existential threat -- even in miniscule concentrations -- to the planet's corals and coral reefs. "The chemical, oxybenzone (benzophenone-3), is found in more than 3,500 sunscreen products worldwide. It pollutes coral reefs via swimmers who wear sunscreen or wastewater discharges from municipal sewage outfalls and coastal4 septic systems," said Dr. Omri Bronstein of TAU's Department of Zoology5, one of the principal researchers.
 
The study was conducted by a team of marine6 scientists from TAU, including Prof. Yossi Loya, also of the Department of Zoology, the Haereticus Environmental Laboratory in Virginia, the National Aquarium7 (US), the US. National Oceanic & Atmospheric8 Administration, Ben Gurion University of the Negev, and other labs in the US. 
 
A deadly day at the beach
 
A person spending the day at the beach might use between two to four ounces of sunblock if reapplied every two hours after swimming, towelling off, or sweating a significant amount. Multiply this by the number of swimmers in the water, and a serious risk to the environment emerges.
 
"Oxybenzone pollution predominantly occurs in swimming areas, but it also occurs on reefs 5-20 miles from the coastline as a result of submarine freshwater seeps9 that can be contaminated with sewage," said Dr. Bronstein, who conducted exposure experiments on coral embryos10 at the Inter11 University Institute in Eilat together with Dr. Craig Downs of the Heretics Environmental Laboratories. "The chemical is highly toxic1 to juvenile12 corals. We found four major forms of toxicity13 associated with exposure of baby corals to this chemical."


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1 toxic inSwc     
adj.有毒的,因中毒引起的
参考例句:
  • The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
  • There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
2 lotions a98fc794098c32b72112f2048a16cdf0     
n.洗液,洗剂,护肤液( lotion的名词复数 )
参考例句:
  • Do not use lotions or oils to lubricate the skin. 不要用润肤剂或油类来润滑皮肤。 来自辞典例句
  • They were experts at preserving the bodies of the dead by embalming them with special lotions. 他们具有采用特种药物洗剂防止尸体腐烂的专门知识。 来自辞典例句
3 cosmetic qYgz2     
n.化妆品;adj.化妆用的;装门面的;装饰性的
参考例句:
  • These changes are purely cosmetic.这些改变纯粹是装饰门面。
  • Laughter is the best cosmetic,so grin and wear it!微笑是最好的化妆品,所以请尽情微笑吧!
4 coastal WWiyh     
adj.海岸的,沿海的,沿岸的
参考例句:
  • The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
  • This country will fortify the coastal areas.该国将加强沿海地区的防御。
5 zoology efJwZ     
n.动物学,生态
参考例句:
  • I would like to brush up my zoology.我想重新温习一下动物学。
  • The library didn't stock zoology textbooks.这家图书馆没有动物学教科书。
6 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
7 aquarium Gvszl     
n.水族馆,养鱼池,玻璃缸
参考例句:
  • The first time I saw seals was in an aquarium.我第一次看见海豹是在水族馆里。
  • I'm going to the aquarium with my parents this Sunday.这个星期天,我要和父母一起到水族馆去。
8 atmospheric 6eayR     
adj.大气的,空气的;大气层的;大气所引起的
参考例句:
  • Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
9 seeps 074f5ef8e0953325ce81f208b2e4cecb     
n.(液体)渗( seep的名词复数 );渗透;渗出;漏出v.(液体)渗( seep的第三人称单数 );渗透;渗出;漏出
参考例句:
  • Water seeps through sand. 水渗入沙中。 来自《现代汉英综合大词典》
  • Water seeps out of the wall. 水从墙里沁出。 来自《现代汉英综合大词典》
10 embryos 0e62a67414ef42288b74539e591aa30a     
n.晶胚;胚,胚胎( embryo的名词复数 )
参考例句:
  • Somatic cells of angiosperms enter a regenerative phase and behave like embryos. 被子植物体细胞进入一个生殖阶段,而且其行为象胚。 来自辞典例句
  • Evolution can explain why human embryos look like gilled fishes. 进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样。 来自辞典例句
11 inter C5Cxa     
v.埋葬
参考例句:
  • They interred their dear comrade in the arms.他们埋葬了他们亲爱的战友。
  • The man who died in that accident has been interred.在那次事故中死的那个人已经被埋葬了。
12 juvenile OkEy2     
n.青少年,少年读物;adj.青少年的,幼稚的
参考例句:
  • For a grown man he acted in a very juvenile manner.身为成年人,他的行为举止显得十分幼稚。
  • Juvenile crime is increasing at a terrifying rate.青少年犯罪正在以惊人的速度增长。
13 toxicity InYwc     
n.毒性,毒力
参考例句:
  • The hoarse grunt or squeal is characteristic of toxicity.嘶哑的哼声和叫声是中毒的特征。
  • Dieldrin is related to aldrin,and its toxicity to earthworms is similar.狄氏剂与艾氏剂有关,对蚯蚓的毒性是相似的。
TAG标签: coral pollution sunscreen
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