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安裝中文字典英文字典辭典工具!
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- Facts About Wearable Technology | Radiation and Your Health | CDC
Wearable technology uses low-powered radiofrequency (RF) and emits a type of non-ionizing radiation
- Facts About Cell Phones and Your Health
Yes – cell phones and cordless phones use radiofrequency (RF) radiation to send signals RF radiation is different from other types of radiation (like x-rays) that we know can be harmful We don’t know for sure if RF radiation from cell phones can cause health problems years later The International Agency for Research on Cancer (IARC) has classified RF radiation as a “possible human
- EMFs In The Workplace (96-129) | NIOSH | CDC
Everyone in our modern society is exposed to the electric and magnetic fields (EMFs) that surround all electric devices Recently, scientific studies have raised questions about the possible health effects of EMFs
- About Non-Ionizing Radiation | Radiation and Your Health | CDC
Overview Radiation exists all around us, from both natural and manmade sources, and is in two forms: ionizing and non-ionizing radiation Ionizing radiation is a form of energy that acts by removing electrons from atoms and molecules of materials These materials include air, water, and living tissue Ionizing radiation can travel unseen and pass through these materials
- Manual for Measuring Occupational Electric and Magnetic Field Exposures
This NIOSH technical document is a reference work for industrial hygienists and researchers who measure occupational exposures to electric and magnetic fields (EMF)
- Facts About Radiation from Air Travel
Radiation from air travel comes from cosmic radiation, or radiation from space Cosmic radiation is produced by the stars, including our own sun You would be exposed to about 0 035 mSv (3 5 mrem) of cosmic radiation if you were to fly within the United States from the east coast to the west coast
- Ultraviolet Radiation | Radiation and Your Health | CDC
UV radiation Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds While it has some benefits for people, including the creation of Vitamin D, it also can cause health risks Our natural source of UV radiation: The sun Some artificial sources of UV radiation include: Tanning beds Mercury vapor lighting (often
- Radiation Hazard Scale | Radiation Emergencies | CDC
About the radiation hazard scale This tool provides a frame of reference for relative hazards of radiation It also: Provides a frame of reference for relative hazards of radiation Conveys meaning without using radiation measurements or units that are unfamiliar to people Is designed for use only in radiation emergencies and is applicable for short-term exposure durations, for example, over
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