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标题: 美国31个城市的自来水含有致癌物 [打印本页]

作者: 云中月 时间: 2010-12-22 14:46
标题: 美国31个城市的自来水含有致癌物
以下内容转自瀚海星云

31 cities’ tap water has cancer-causing hexavalent chromium, study says

http://news.yahoo.com/s/yblog_th ... er-causing-chemical

The Environmental Working Group released a report Monday indicating that
millions of Americans are regularly drinking hexavalent chromium, made
famous in the film "Erin Brockovich" as a carcinogen, through their tap
water.

The group -- whose study was first reported in a story Sunday by the
Washington Post's Lyndsey Layton -- tested water from 35 U.S. cities and
found that samples from 31 cities contained hexavalent chromium. The highest
concentrations were found in Norman, Okla.; Honolulu; and Riverside, Calif.
The substance had been a widely used industrial chemical for decades and has
evidently leached into the groundwater in many areas.

[Related: Drilling ban follows concern over flammable water]

The EWG report states:

"Despite mounting evidence of the contaminant's toxic effects, the U.S.
Environmental Protection Agency (EPA) has not set a legal limit for chromium-
6 in tap water and does not require water utilities to test for it.
Hexavalent chromium is commonly discharged from steel and pulp mills as well
as metal-plating and leather-tanning facilities. It can also pollute water
through erosion of natural deposits.

"The authoritative National Toxicology Program (NTP) of the U.S. Department
of Health and Human Services has said that chromium-6 in drinking water
shows 'clear evidence of carcinogenic activity' in laboratory animals,
increasing the risk of gastrointestinal tumors. Just last October, a draft
review by the EPA similarly found that ingesting the chemical in tap water
is 'likely to be carcinogenic to humans.' Other health risks associated with
exposure include liver and kidney damage, anemia and ulcers."

[Related: Leaking ice raises tricky climate issue]

Drinking-water supplies all over the country are increasingly tainted by
chemicals used in natural gas drilling. And Erin Brockovich, for her part,
told the EWG that she's rather astonished to find that hexavalent chromium
is still a prospective health threat in so many communities.

[List: America's most polluted cities]

"It is sometimes difficult to understand why I still have to warn the public
about the presence of hexavalent chromium in drinking water 23 years after
my colleagues and I first sounded the alarm," Brockovich told the EWG. "This
report underscores, in fairly stark terms, the health risks that millions of
Americans still face because of water contamination."

The list of cities found to have hexavalent chromium in the municipal water
supplies are as follows:

• Honolulu, HI
• Bend, OR
• Sacramento, CA
• San Jose, CA
• Los Angeles, CA
• Riverside, CA
• Las Vegas, NV
• Salt Lake City, UT
• Scottsdale, AZ
• Phoenix, AZ
• Albuquerque, NM
• Norman, OK
• Omaha, NE
• Madison, WI
• Milwaukee, WI
• Chicago, IL
• Ann Arbor, MI
• Louisville, KY
• Cincinnati, OH
• Buffalo, NY
• Syracuse, NY
• Pittsburgh, PA
• Villanova, PA
• Boston, MA
• New Haven, CT
• New York, NY
• Bethesda, MD
• Washington, DC
• Atlanta, GA
• Tallahassee, FL
• Miami, FL

作者: zhangxi 时间: 2010-12-22 15:20
关于六价铬，咱们的中华大地上，很多地方堆积着这种废料，网上说只是河南，就有几处，每一处几吨到几万吨不等。国家规定好像是2010年年底之前必须处理，但需要耗费巨大，难度很大。不知道我们的自来水是否合格。

作者: 淡雅 时间: 2010-12-22 15:23
老米的自来水是可以直接喝滴，我们的自来水是烧开了才能喝滴~~~

作者: 风铃草 时间: 2010-12-22 16:30
看不懂洋文的灰溜溜的路过........

作者: 飘雪无边 时间: 2010-12-22 16:34

看不懂洋文的灰溜溜的路过........
风铃草发表于 2010-12-22 16:30

俺也两眼一抹黑，啥也看不懂。。。。。。

作者: 风铃草 时间: 2010-12-22 16:36

俺也两眼一抹黑，啥也看不懂。。。。。。
飘雪无边发表于 2010-12-22 16:34

咱打酱油去.

作者: lao90286 时间: 2010-12-22 16:42
31 cities’ tap water has cancer-causing hexavalent chromium

作者: wikd 时间: 2010-12-22 16:48
主任的英文看不懂

作者: lao90286 时间: 2010-12-22 16:50

主任的英文看不懂
wikd 发表于 2010-12-22 16:48

The list of cities found to have hexavalent chromium in the municipal water

作者: wikd 时间: 2010-12-22 16:51

The list of cities found to have hexavalent chromium in the municipal water
lao90286 发表于 2010-12-22 16:50

俺也来一段

Drinking-water supplies all over the country are increasingly tainted by
chemicals used in natural gas drilling. And Erin Brockovich, for her part,
told the EWG that she's rather astonished to find that hexavalent chromium
is still a prospective health threat in so many communities.

作者: lao90286 时间: 2010-12-22 16:53

俺也来一段

Drinking-water supplies all over the country are increasingly tainted by
chemical ...
wikd 发表于 2010-12-22 16:51

这么快就掌握了一门外语~~~~耶

作者: wikd 时间: 2010-12-22 16:55

这么快就掌握了一门外语~~~~耶
lao90286 发表于 2010-12-22 16:53

作者: 林峰 时间: 2010-12-22 20:29
我发晕！

作者: zhangxi 时间: 2010-12-23 12:47
本帖最后由 zhangxi 于 2010-12-23 12:49 编辑

这么严肃地问题被家长们给弄成一个逗乐的事情啦，这可不行。

对此种行为要严肃批评。

虽然不懂英文，猜猜就知道是说环保的大事。环保、污染，问题非常严重。同志们。

问题是身为老百姓只能跟着瞎着急呀。

作者: 星空0414 时间: 2010-12-23 14:26
还好，俺家小子所在城镇没列上。

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