iodine

Link Removed due to 404 Error As Japan's prime minister visited tsunami-ravaged coastal areas for the first time Saturday, frustrated evacuees complained that the government has been too focused on the nuclear crisis that followed the massive wave. Nearly every day some new problem at...

The International Atomic Energy Agency weighed in on the simmering nuclear crisis with alarming radiation data, but the government said Thursday it has no plans for now to expand the current evacuation zone. The international nuclear watchdog said Wednesday in Geneva it detected about 2...

Extremely low levels of radioactive iodine from the tsunami-hit Japanese nuclear plant have been detected in parts of the UK. A statement from the Health Protection Agency said the "minutest traces of iodine" were being seen in the UK, with low levels detected at monitoring stations in...

Chernobyl, the infamous atomic power plant in northern Ukraine, is getting ready for an anniversary. It will be 25 years next month since Reactor No. 4 exploded, causing the worst nuclear disaster in human history. A huge section of Europe was covered in a carcinogenic haze after the April 1986...

How much radiation is dangerous? Radiation is measured using the unit sievert, which quantifies the amount of radiation absorbed by human tissues. One sievert is 1,000 millisieverts (mSv). In the U.S., the average person is exposed to about 6.2 millisieverts a year, mostly from background...