Web Results

Radiation protection - Wikipedia


Radiation protection, sometimes known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to io...

NRC: Radiation Basics


This less-familiar form of radiation includes alpha particles, beta particles, and ... Essentially, a half-life of a radioactive material is the time it takes one-half of the atoms ... (ions), which may cause changes in living cells of plants, animals, and people. ... Nonetheless, ionizing radiation is potentially harmful if not used c...

Chemical and Hazardous Materials Safety Manual - The University ...


information concerning radioactive materials and/or radiation producing devices. .... B. Wear a face shield, acid resistant chemical gloves, and aprons when working ... This potential ... Label every storage container used for flammable liquids with the name of the ... Any substance, even water, can be harmful to living things.

Introduction to Ozone: Background Material


The general concepts found in this section include the following: ... Ozone is also found in the troposphere, where it can damage living tissue and ... pollutant that damages human health, vegetation, and many common materials. ... in the earth's atmosphere by the action of the sun's ultraviolet radiation on oxygen molecules.

Radiation Protection | US EPA


Jul 26, 2016 ... Information and educational materials. About radiological topics in general, plus EPA's activities in protecting the public and the environment ...

Radiation and Radioactivity.pdf - DEP's Online Library


inevitable because of radioactive materials found in water, air, and even ... Since they can penetrate matter, they are potentially harmful to the ... concrete, or water is typically used to shield people from gamma radiation. ... lives on earth is continually exposed to radiation; energy is deposited into living ... The most commonly.

Chapter 48 - Radiation: Ionizing


Naturally occurring radioactive isotopes enter and remain in all living things. ... Such particles include energetic electrons (sometimes called negatrons), positrons, ... The energy of the photon and the material with which it interacts determine which ... quantities, units and definitions commonly used in radiation safety follows.



Any discussion of dangers from radiation must include numbers; otherwise, it can be ... about 10,000 mrem, which is commonly referred to as low-level radiation. ... a radioactive source used for materials inspection being temporarily misplaced; ... amount of air above that shields people from cosmic rays, natural radiation is ...

X-rays, Gamma Rays, and Cancer Risk - American Cancer Society


absorbed dose in Gy. Less common radiation dose units include rads, rems, and roentgens. ... more cosmic rays than people living at sea level. People are also ... Some of these may end up in building materials used in houses and other structures. .... but they have the potential to expose people to high levels of radiation.

The Radiation Challenge - NASA


Items 1 - 16 ... Radiation Damage in Living Organisms: Modeling .... best time to travel in space, and which materials should be used for the spacesuits, spacecraft, ...

More Info

OSHA Training and Reference Materials Library - Industrial Hygiene


These materials were developed by OSHA's Office of Training and Education and are intended to .... with toxic chemicals, biological hazards, and harmful physical agents. ... Potential hazards can include air contaminants, and chemical, biological, ... These include bacteria, viruses, fungi, and other living organisms that can ...

Materials Used in Radiation Shielding - ThomasNet


This article describes the various materials used to block different types of radiation ... is an important part of operating equipment that emits potentially hazardous rays. ... Indirectly ionizing radiation, which includes neutrons, gamma rays, and x-rays, ... Neutrons can be made less harmful through a combination of elastic and ...

Protection Against Exposure to Ultraviolet Radiation - World Health ...


This INTERSUN report provides information to people on how to protect themselves from the potentially harmful effects of exposure to ultraviolet (UV) radiation.