Via AOL News
Charles Duhigg of The New York Times today delivered the latest unsettling news about the nation's water supply: It's not as clean as you might think. An analysis of federal data from the last five years revealed that more than 20 percent of the nation's water-treatment systems have broken provisions of the Safe Drinking Water Act, the standards enforced by the Environmental Protection Agency. The result? As many as 19 million Americans are sickened each year.
Over the years, the EPA has identified many substances in water supplies far and wide. Here are nine unexpected things that they've spotted.
Arsenic
A naturally occurring element found in soil and minerals, arsenic is used as a pesticide and wood sealant. Ingesting high levels of arsenic, Madame Bovary can tell you, is deadly. At lower levels, over longer periods of time, it can darken skin and spur corns and warts. A carcinogen, arsenic can increase the risk of skin, liver, bladder and lung cancers.
The EPA has said that more than 3 million Americans have been exposed to water with illegal concentrations of arsenic since 2005.
Uranium
The element Iran insists on enriching despite howls from the U.S. and other Western nations, it is also used in helicopters, airplanes, armor, fertilizer and household items like certain microwaves. After it's mined and processed, some of it is released back into the environment in waste material, called mill tailings. Large amounts of uranium can lead to kidney disease and cancer, though naturally occurring uranium is much less radioactive.
The EPA says levels of uranium in drinking water are usually low and safe, according to the Agency for Toxic Substances and Disease Registry. However, the 3 million Americans exposed to illegal amounts of arsenic were also exposed to illegal amounts of radioactive substances.
Radium
This radioactive metal has been used to treat cancer, for scientific research and in instrument calibration. Everyone is exposed to low levels of the substance, but higher levels are found near uranium mines, coal-burning industries and sometimes in drinking water that comes from wells. Radium can cause anemia and cataracts. At high levels, it is a carcinogen, causing increased bone, liver and breast cancer.
The EPA has reported that levels of radium were 2,000 times the legal limit in water flowing in some areas.
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