Search results
Results From The WOW.Com Content Network
Artificial radioactive affliction to Earth’s environment began with nuclear weapon testing during World War II, but did not become a prominent topic of public discussion until the 1980s. The Journal of Environmental Radioactivity (JER) was the first collection of literature on the subject, and its inception was not until 1984. [2]
The distribution coefficient K d is the ratio of the soil's radioactivity (Bq g −1) to that of the soil water (Bq ml −1). If the radioactivity is tightly bonded to by the minerals in the soil then less radioactivity can be absorbed by crops and grass growing in the soil. Cs-137 K d = 1000; Pu-239 K d = 10000 to 100000; Sr-90 K d = 80 to 150 ...
Surface contamination may either be fixed or "free". In the case of fixed contamination, the radioactive material cannot by definition be spread, but its radiation is still measurable. In the case of free contamination, there is the hazard of contamination spread to other surfaces such as skin or clothing, or entrainment in the air.
Radium, like radon, is radioactive and is found in small quantities in nature and is hazardous to life if radiation exceeds 20-50 mSv/year. Radium is a decay product of uranium and thorium. [2] Radium may also be released into the environment by human activity: for example, in improperly discarded products painted with radioluminescent paint.
The Nuclear Institute for Agriculture and Biology, also known as NIAB, (Urdu: جوہری ادارہ برائے زراعت و حیاتیات) is a Pakistani agriculture and food irradiation national research institute managed by the Pakistan Atomic Energy Commission. It is located in Faisalabad, Punjab.
Pakistan Atomic Energy Commission (PAEC) (Urdu: ماموریہ جوہری توانائی پاکستان, romanized: māmūrīa jauhrī tawānā'ī pākistān) is a federally funded independent governmental agency, concerned with research and development of nuclear power, promotion of nuclear science, energy conservation and the peaceful use of nuclear technology.
Environmental agencies enact regulations which are intended to result in attainment of these target levels. The second class (such as the North American air quality index ) take the form of a scale with various thresholds, which is used to communicate to the public the relative risk of outdoor activity.
The Urdu Dictionary Board (Urdu: اردو لغت بورڈ, romanized: Urdu Lughat Board) is an academic and literary institution of Pakistan, administered by National History and Literary Heritage Division of the Ministry of Information & Broadcasting. Its objective is to edit and publish a comprehensive dictionary of the Urdu language.