View Locations of found radiation from Japan in IL in a larger map
The map above depicts the locations highlighted in the following story where trace amounts of radiation from Japan have been found in Illinois - Will County and Springfield, Ill.
Reporting from Illinois Public Radio's Sean Crawford used in this report.
Trace amounts of radiation from Japan have shown up in Illinois. But state officials say there's no reason for concern.
Minute levels of radioactive materials have been detected in both northern and central Illinois. The state's Emergency Management Agency says radioactive iodine was found in grass clippings in Will County and in an air sample collected at a lab in Springfield.
The materials are believed to be related to the troubled nuclear reactors in Japan. But Illinois' Director Jonathon Monken says the levels are extremely low and present no danger.
For example, the air sample is 200,000 times lower than what is allowed for nuclear plant effluent.
Traces of iodine have shown up in other states. In Illinois, the state has stepped up its monitoring of grass, air, milk and eggs in the wake of the Japan crisis.