write essay on radio active waste and sewage
Answers
Explanation:
Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a by-product of various nuclear technology processes. Industries generating radioactive waste include nuclear medicine, nuclear research, nuclear power, manufacturing, construction, coal and rare-earth mining, and nuclear weapons reprocessing.[1] Radioactive waste is regulated by government agencies in order to protect human health and the environment.
Answer:
Explanation:
The substances, which emit the radiations, are known as radioactive. The phenomenon of spontaneous emissions of radiations from radioactive substance is known as radioactivity.
The examples of radioactive substances are – uranium, polonium, radium, radon, ionium, thorium, actinium, etc. It is clearly known that all naturally occurring elements whose atomic numbers are greater than 82 are all radioactive and radioactivity is the property of atom of the element concerned in a compound because the radiation are unaffected by chemical and physical change.
α (alpha), β (beta) and γ (gamma) radiations are, at low levels, naturally part of our environment. Any or all of them may be present in any classification of wastes. All three kinds of radiations are a health hazard. They can cause leukemia, eye cataracts, various forms of cancer and, from a high dose, death. The hazard is greatest if the radionuclide enters the body through the intake of contaminated food, water and air.
Radioactivity enters the environment from natural and man-made sources. Radioactivity can exist as gaseous, liquid or solid materials. Radon is a well-known example of a radioactive gas. Water often contains dissolved amounts of radium and uranium. Solid radioactive waste is produced from many sources, including the uranium and rare earth mining industries, laboratory and medical facilities, and the nuclear power industry.
Radiation is a part of natural environment. The total radiation exposure, both external and internal, resulting from natural and man-made sources is important for assessing the effects of radiation on human beings. The external exposure comes out from extra-terrestrial sources in the form of cosmic rays and also from terrestrial radiation sources.
Radioactivity in the environment incites public reaction more rapidly than any other environmental incidence. The mere word radioactivity reminds fear in most people, even trained and skilled workers in the field. This fear has been imprinted in the public memory by such names as Hiroshima, Three Mile Island and Chernobyl.