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Latest Actinides in the environment Stories

2009-11-30 13:42:53

Radon is a colorless and odorless radioactive gas that is produced by the radioactive decay of radium. Radium is a product of uranium decay and is found in trace amounts naturally in nearly all rocks, soils, and groundwater as well as building materials, plants, animals, and the human body. Radon concentration is expressed as the amount of radiation that would be emitted by radon and its decay products in a liter of air; thus the units are picocuries per liter (pCi/L). The American Cancer...

2009-09-21 10:00:00

ST. LOUIS, Sept. 21 /PRNewswire-USNewswire/ -- In simultaneous releases published around across the globe today, the World Health Organization (WHO) called for stronger action against indoor radon, the leading cause of lung cancer among U.S. and Canadian non-smokers. The central WHO recommendation is to lower radon gas levels by one-third below the current U.S. guidance. The lower WHO action level doubles the number of U.S. homes needing radon control systems from 8 million to 15 million....


Latest Actinides in the environment Reference Libraries

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2009-07-09 17:39:38

Americium is a synthetic radioactive metallic element. The symbol for Americium is Am and the atomic number is 95. Americium is an actinide that was first isolated by Glenn T. Seaborg in 1944 while attacking plutonium with neutrons. It became the fourth transuranic (having an atomic number greater than 92) element to be discovered. It was named for the Americas. It is widely used in commercial smoke-detectors and different types of industrial gauges. Americium in its pure state has a...

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Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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