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Understanding radiation

Oct 15, 2019 ...Understanding radiation Radiation is energy that comes from a source and travels through material or space. Every day, Canadians come in contact with radiation in both their living and work environments. Services and information About radiation Sources of radiation, ionizing radiation, non-ionizing radiation, types of radiation. Health effects of radiation

Occupational radiation exposure and radiation regulations

Sep 3, 2019 ...Occupational radiation exposure and radiation regulations Learn how Health Canada protects you against unsafe levels of radiation given off from some devices. Services and information About occupational exposure to radiation Health risks, background, minimizing risk, exposure pathways Radiation regulations Radiation Emitting Devices Act, Radiation Emitting

Everyday things that emit radiation

Oct 21, 2019 ...Everyday things that emit radiation Learn about common products and devices that give off radiation. Services and information Hand-held lasers and laser pointers Lasers, laser pointers, milliwatt, mW, hand-held, laser classifications, laser injury, toy lasers, battery-powered laser, laser diode, importing lasers, selling lasers, restricted lasers, use

Ultrasound: Medical radiation

Oct 10, 2019 ...Ultrasound Diagnostic ultrasound is a powerful, non-invasive medical tool. On this page: About ultrasound Fetal ultrasound Health Canada's role More information About ultrasound The basis of operation for diagnostic ultrasound is the transmission into the body of sound (or acoustic radiation) at frequencies 100 - 500 times higher than can be heard. Images

Radiation and your health

Sep 4, 2019 ...Radiation and your health Information on radiation, its uses, health effects and safety standards. Most requested Radiation safety codes Radiation guidelines Contributors Health Canada Transport Canada Public Safety Canada Global Affairs Canada Natural Resources Canada Royal Canadian Mounted Police Canadian Food Inspection Agency National Research Council

Ultraviolet radiation

Sep 3, 2019 ...Ultraviolet radiation Ultraviolet (UV) radiation comes from natural sources (like the sun), and artificial sources (like black lights, welding equipment, lasers, and tanning equipment). On this page: Sunlight and radiation Electromagnetic radiation spectrum Types of UV radiation Factors that affect ultraviolet levels The ozone layer How the Government

Environmental radiation

Sep 3, 2019 ...Environmental radiation We are constantly exposed to small amounts of radiation from the environment as we carry out our normal daily activities. Environmental radiation comes from the sky, the earth, and the air we breathe and can be categorized as natural or artificial. On this page: Natural radioactive sources Artificial (or man-made) radioactive sources

Microwave ovens: Everyday things that emit radiation

Oct 21, 2019 ... at your microwave oven. If there is noticeable damage to the door or door hinges, latches or screen, there may be excessive leakage. Contact the manufacturer, distributor, or a qualified service technician to have the oven professionally inspected. Health Canada's role Health Canada has established a regulation under the Radiation Emitting Devices Act to govern

Measuring exposure to radiation

Sep 3, 2019 ...Exposure to radiation All exposures to ionizing radiation carry a risk of biological damage, although this risk decreases as the exposure decreases. For example, the risk associated with natural background radiation is very small, although elevated levels of naturally occurring radon increase the risk of lung cancer. For workers in certain industries

Sources and types of radiation

Sep 3, 2019 ...About radiation Radiation can be classified as ionizing or non-ionizing. Ionizing radiation has sufficient energy to remove electrons from atoms or molecules. Radiation that has enough energy to move or vibrate atoms, but not enough to remove electrons, is called non-ionizing radiation. On this page: Sources of radiation Ionizing radiation Non-ionizing

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