Radiation Areas

Radiation areas fall into two categories: a radiation area and a high radiation area. They are measured using exposure measurements.

Exposure refers to the amount of radiation traveling through the air. The unit of measure for exposure is the roentgen (R, U.S. unit) or the coulomb/kilogram (C/kg, international unit).

A radiation area is any area that is accessible to personnel where levels of radiation could cause a major portion of the body to receive a dose of more than 5 millirem in any one-hour period, or a dose of more than 100 millirem in any five consecutive days.

A high radiation area is any area that is accessible to personnel where levels of radiation can cause a major part of the body to receive a dose of more than 100 millirem in any one-hour period.

To learn more about HAZWOPER visit our HAZWOPER 40 Hour Online Training web page.