Medical technologies account for most radiation exposure.
The International Atomic Energy Agency (IAEA) provides information about natural and man-made radiation exposure, and guidelines for working with radioactive materials. These standards are used by members of the United Nations (U.N.) and endorsed by the World Health Organization (WHO).
Natural Radiation Exposure
According to the IAEA, the earth's rocks, minerals, soil and water contain and emit small amounts of radiation into the air, causing people to inhale or ingest them. This type of exposure is inevitable, and not considered harmful.
Medical Radiation Exposure
Most human exposure to man-made radiation comes from medical diagnostic and treatment technologies. Radioactive sterilization and X-rays are just two examples of the benefits of using radiation medically. Doses are usually low, and monitored by professionals.
Occupational Radiation Exposure
The IAEA limits the amount of radiation exposure permitted in the workplace. The Nuclear Energy Institute (NEI) says that nuclear power workers average less than 25 percent of that limit per year, a low risk for toxic effects.
Emergency Radiation Exposure
Exposure to high levels of radiation can cause cellular damage to the body, including malignancies. Symptoms of a radiation overdose are nausea, and reddening of the skin. If you are exposed to a high level of radiation, seek medical treatment immediately.
Tags: Radiation Exposure, man-made radiation, radiation exposure
