How it is beautiful urban running water include possible the intersection of carcinogen and six the intersection of price and chromium

How it is beautiful urban running water include possible the intersection of carcinogen and six the intersection of price and chromium
Xinhua News Agency Beijing 12 Report in electricity comprehensive reporter to Washington of Xinhua News Agency Ren HaiJun, reporter to Los Angeles plateau on the 21st in the moon: The American environmental group " L The environmental work group " Announce on the 20th the report claims, they find after surveying running water of 35 cities in U.S.A., the municipal administration of 31 cities contains six prices that may cause cancer while supplying water chromium.
American Department of Health and Human services responsible for the expert whose toxicology study say, clear evidence shows, it will cause the experimental mouse to suffer from cancer to drink the drinking water polluted by six price chromium. A preliminary assessment report that the administration in environment protecting mode of U.S.A. announces thinks, six price chromium may have carcinogenic effect on also the mankind. However, the U.S. government has not made upper limit to the content of six prices in the drinking water chromium yet, have not required the public utility department to find whether to contain six prices chromium in the running water either.
Chromium is a kind of compound, there are the differences of two prices, three prices and six prices. All chromium compound is toxicant, six price chromium among them has the largest toxicity. Chromium is used mainly in metal processing, electroplating and trade of processing hides, waste water and waste gas that these trades discharge are the main environmental pollution sources.
It is reported, here " L The environmental work group " R In the cities investigated, six price chromium content of the running water of 25 cities is higher than 0.06ppb, among them six price chromium content in the running water of Norman city has already reached this standard one 200 times. California had suggested last year, limited six price chromium content in the running water under 0.06ppb as the public health goal.
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