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Sun screen lotion threatens coral [Copy link] 中文

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Post time 2008-5-25 10:29:39 |Display all floors
Agence France-Presse - 5/23/2008 3:40 PM GMT

Sun screen lotion threatens coral: study

Sun screen lotions used by beach-going tourists worldwide are a major cause of coral bleaching, according to a new study commissioned by the European Commission.

In experiments, the cream-based ultra-violet (UV) filters -- used to protect skin from the harmful effects of sun exposure -- caused bleaching of coral reefs even in small quantities, the study found.

Coral reefs are among the most biologically productive and diverse of ecosystems, and directly sustain half a billion people. But some 60 percent of these reef systems are threatened by a deadly combination of climate change, industrial pollution and excess UV radiation.

The new study, published in US journal Environmental Health Perspectives, has now added sun screens to the list of damaging agents, and estimates that up to 10 per cent of the world's reefs are at risk of sunscreen-induced coral bleaching.

Chemical compounds in sunscreen and other personal skin care products have been detected near both sea and freshwater tourist areas. Previous research has shown that these chemicals can accumulate in aquatic animals, and biodegrade into toxic by-products.

Researchers led by Roberto Danovaro at the University of Pisa in Italy added controlled amounts of three brands of sunscreen to seawater surrounding coral reefs in Mexico, Indonesia, Thailand and Egypt.

Even small doses provoked large discharges of coral mucous -- a clear sign of environmental stress -- within 18 to 48 hours. Within 96 hours complete bleaching of corals had occurred.

Virus levels in seawater surrounding coral branches increased to 15 times the level found in control samples, suggesting that sunscreens might stimulate latent viral infections, the study found.

Pesticides, hydrocarbons and other contaminants have also been found to induce algae or coral to release viruses, hastening the bleaching process.

According to the World Trade Organisation, around 10 per cent of tourism takes place in tropical areas, with 78 million tourists visiting coral reefs each year.

An estimated 4,000 to 6,000 tonnes of sunscreen are released annually in reef areas, with 25 per cent of the sunscreen ingredients on skin released into water over the course of a 20 minute submersion.

Sunscreens are made of around 20 compounds acting as UV filters and preservatives. Seven were tested for the study, including parabens, cinnamates, benzophenones and camphor derivatives.



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Whampoa
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Post time 2008-5-25 15:31:19 |Display all floors
Coral bleaching?

Looks like every time we invent a drug to benefit our fellow men, something in nature is hurt.

The worst was penicillin, which saved so many lives in 1944 and killed so many bacteria.

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Post time 2008-5-25 17:20:26 |Display all floors
Think, who started sun screening lotions and who use them most often.  They are a luxury.

Don't get it, why do people like to lie naked or half-naked under the sun and yet want protection from the sun.

They can only do this at the expense of our beloved Mother Earth.

For those talking about saving the environment blah, blah, blah, perhaps they have to start thinking of all these, though small, inventions that bring more harm and damage to Earth.

Blaming the poor countries for using cheap resources (substitutes) in their industrialisation is wrong.  The rich harms the Earth even more than the poor people.



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Whampoa
When asked what they least admired about the West, they replied
MORAL DECAY, PROMISCUITY and pornography which...
DEGRADED women.

Use magic tools Report

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Post time 2008-5-25 17:46:13 |Display all floors

purpose to being tanned

Originally posted by whampoa at 2008-5-25 17:20
Think, who started sun screening lotions and who use them most often.  They are a luxury.

Don't get it, why do people like to lie naked or half-naked under the sun and yet want protection from the sun.


LOL Sorry I couldn't help laughing...

Is this just rich people's behavior or the people with light skin's general hobby? What is the purpose to lie naked? Why does everyone want to have a tropical body? ..so that people can look tanned therefore sexy?



[ Last edited by chinesequeen at 2008-5-25 05:47 PM ]

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Post time 2008-5-25 18:04:10 |Display all floors
Originally posted by chinesequeen at 2008-5-25 17:46


LOL Sorry I couldn't help laughing...

Is this just rich people's behavior or the people with light skin's general hobby? What is the purpose to lie naked? Why does everyone want ...



I have already said, these sun lotions are a luxury.  WHO uses the luxury and causing the harm to the environment?  Why do they want to look "tanned" and are not "tanned"?  Who invented the ideas of "tanned" as "sexy"?

THINK (and don't just laugh) !

Who are they? :)



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Whampoa


[ Last edited by whampoa at 2008-5-25 06:30 PM ]
When asked what they least admired about the West, they replied
MORAL DECAY, PROMISCUITY and pornography which...
DEGRADED women.

Use magic tools Report

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Post time 2008-5-25 18:46:23 |Display all floors

who is responsible..

Should the people who use sunscreen by the beach be blamed? Who is responsible for the widely available tanning lotion? The makers or the beauty industry that advocates tanned body sexy?

The sunscreen makers should be responsible for their products' environmental impacts not the ordinary people who use the products. If the negative impact is pointed out in their product ads then I am sure most people will be more cautious.

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Post time 2008-5-25 21:56:36 |Display all floors
Originally posted by chinesequeen at 2008-5-25 18:46
Should the people who use sunscreen by the beach be blamed? Who is responsible for the widely available tanning lotion? The makers or the beauty industry that advocates tanned body sexy?

The su ...


This thread is intended to inform.

You didn't quite seem to have read or understand.  Read again ....


Sun screen lotions used by beach-going tourists worldwide are a major cause of coral bleaching, according to a new study commissioned by the European Commission.

In experiments, the cream-based ultra-violet (UV) filters -- used to protect skin from the harmful effects of sun exposure -- caused bleaching of coral reefs even in small quantities, the study found.


Good suggestion to point out the negative impact on the product .... "stay away from beaches when you are using me" (the product).  Good enough?

That's my first puzzle.



---
Whampoa
When asked what they least admired about the West, they replied
MORAL DECAY, PROMISCUITY and pornography which...
DEGRADED women.

Use magic tools Report

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