Skip to content

Radiation Exposure: Risks and Health Effects

Font Size

Topic Overview

(continued)

How do different sources of radiation compare? continued...

You may be exposed to more radiation than other people if you:

  • Live at high altitude.
  • Have certain medical tests (such as X-rays or CT scans) or treatments (such as radiation treatment for cancer).
  • Are exposed to radon gas in your home.

To understand more about radiation exposure, you may find it helpful to compare some common sources of radiation to a standard dose from a chest X-ray. A chest X-ray gives off very small amounts of radiation.

For example:

  • You would need to go through a full-body airport scanner about 1,000 times to get the same amount of radiation that you would get from 1 chest X-ray.
  • A 10-hour plane flight is about the same exposure as 1 chest X-ray.
  • One mammogram test is about the same as 5 chest X-rays.
  • Living at high altitude (such as in Denver) for a year is about the same as having 5 chest X-rays.
  • One CT scan is about the same as 200 chest X-rays.
1|2|3

WebMD Medical Reference from Healthwise

Last Updated: October 08, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
Next Article:

Radiation Exposure: Risks and Health Effects Topics

Hot Topics

WebMD Video: Now Playing

Click here to wach video: Dirty Truth About Hand Washing

Which sex is the worst about washing up? Why is it so important? We’ve got the dirty truth on how and when to wash your hands.

Click here to watch video: Dirty Truth About Hand Washing

Popular Slideshows & Tools on WebMD

MS Overview
Recognizing symptoms.
feet
Solutions for 19 types.
pregnancy test and calendar
Helping you get pregnant.
build a better butt
How to build a better butt.
lone star tick
How to identify that bite.
woman standing behind curtains
How it affects you.
brain scan with soda
Tips to avoid complications.
row of colored highlighter pens
Tips for living better.
psoriasis
How to keep flares at bay.
woman dreaming
What Do Your Dreams Say About You?
spinal compression fracture
Treatment options.

Women's Health Newsletter

Find out what women really need.