BOSTON (CBS) – We are a very long way from Japan, so how did that radiation make its way half way around the world?

WBZ-TV’s Melissa Mack reports.

State health experts said even though radioactive iodine has been found in rainwater, there’s no danger to the public drinking water supply.

The radioactive material is pretty diluted by the time it gets here in Massachusetts, and we haven’t had much precipitation lately.

Also See: Personal Annual Radiation Dose Calculator