2 edition of Bibliography on natural radioactivity in soils (1966-1948). found in the catalog.
Bibliography on natural radioactivity in soils (1966-1948).
Commonwealth Bureau of Soils.
|Series||Bibliography -- 1071|
Purchase The Natural Radiation Environment VII, Volume 7 - 1st Edition. Print Book & E-Book. ISBN , Soil near the stems of beech trees contained considerably more fallout and was subjected to greater leaching of natural radioisotopes, to a depth of 30 cm or more, than soil not affected by stemflow water. Depth penetration of fallout and leaching of natural radioisotopes was greater in Dekalb fine sandy loam than in Bennington silt loam.
Abstract. Natural radioactivity of zonal soils and of their soil forming rocks up to cm in depth as well as of the suprasoil air at a 20 cm altitude from the soil surface has been studled from VM to X in the natural zones of the European part of the USSR located along the meridian from the Arkhangelsk taiga down to the southern coast of Crimea. The concentration levels of Ra, Th and 40 K in soil have a great concern in the recent decades, due to its effect on the human health. The radioactivity of some soil samples taken from selected locations in Basrah Governorate have been measured using .
Radioactive material is found throughout nature. Detectable amounts occur naturally in soil, rocks, water, air, and vegetation, from which it is inhaled and ingested into the addition to this internal exposure, humans also receive external exposure from radioactive materials that remain outside the body and from cosmic radiation from space.. The worldwide average natural dose to. The average annual effective doses estimated from direct external gamma-ray exposure from natural radioactivity at 1 m above sampling area and that due to activity concentrations of U, Th and 40 K in the soil and rock-ore pad samples were ± and ± mSv respectively.
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In another research conducted by Al-Jundi et al. (), the concentrations of natural radioactivity in soil samples collected along the Amman–Aqaba highway were ranged from 22 to Bq kg −1 for U, from 21 to Bq kg −1 for Th and from to Bq kg −1 for 40 by: Radioactivity in buildings. Determining population's exposure to radiation from building materials is important, because almost 80% of human life is spent indoors. All building materials mostly constitute rock and soil; these two raw materials include natural radioactive isotopes such as Th and U decay series and 40 K..
The activity concentration of natural radionuclides in Cited by: In this study, the radioactivity concentrations of the natural radioactive nuclides U, Th and 40K were measured in 26 surface soil samples of two areas of Libya. The soil samples were collected from two different agricultural lands in northwest Libya.
The measurements of the activity concentration of selected radionuclides in soil samples were effectuated by gamma-ray spectrometry Cited by: 1. An important part of man's radioactive environment is the natural radioactivity of soils.
This radioactivity varies with soil type and withdepth in the soil profile. The relation between gross gamma activity and soil depth for a particular soil (Miami silt loam) is presented, together with a discussion of the contribution of K40 and the uranium and thorium series and of the effects of fallout Cited by: 1.
Environmental radioactivity is produced by radioactive materials in the human some radioisotopes, such as strontium (90 Sr) and technetium (99 Tc), are only found on Earth as a result of human activity, and some, like potassium (40 K), are only present due to natural processes, a few isotopes, e.g.
tritium (3 H), result from both natural processes and human activities. Journals & Books; Help Download PDF Download. Share. Export. Advanced. Journal of Environmental Radioactivity. VolumeFebruaryPages Natural radioactivity in soils of the state of Rio de Janeiro (Brazil): Radiological characterization and relationships to geological formation, soil types and soil properties.
Surface soils of 2 cm depth were sampled at developed and undeveloped areas in Fraser’s Hill, Pahang, Malaysia. Thirty one (31) locations were collected and Ra, Th and 40K activity concentrations were measured using HPGe Gamma Counting System. The mean radium equivalent activity concentration (Raeq) for the sampled area was Bq/kg.
In this research, the activity concentrations of 40 K, Th and Ra in 41 grass samples collected from Kars region, Turkey, were determined using gamma ray spectrometry. Natural radioactivity. Natural radioactivity in surface soil samples from dwelling areas in Tehran city, Iran Radiation Protection Dosimetry Ademola, Augustine Kolapo, et al.
Determination of Natural Radioactivity and Hazard in Soil Samples in and around Gold Mining Area in Itagunmodi, South-Western, Nigeria. technology, etc. Reports on radioactivity in the oceans, sediments, rivers, lakes, groundwaters, soils, atmosphere and all divisions of the biosphere are welcomed, but these should not simply be of a monitoring nature unless the data are particularly innovative.
In principle, there are two sources of environmental radioactivity, namely man made and natural. The authors of this book set out to analyze mainly empirie al aspects of the activities of both.
Activity concentrations of radionuclides in water, soil and tuber crops of a major food-producing area in Ghana were investigated. The average gross alpha and beta activities were and Bq/L, respectively, and are below the guidelines for drinking water and therefore not expected to pose any significant health risk.
The average annual effective dose due to ingestion of radionuclide. Introduction. The natural terrestrial gamma radiation dose rate is an important contribution to the average dose rate received by the world's population.[1,2] Estimation of the radiation dose distribution is important in assessing the health risk to a population and serve as the reference in documenting changes to environmental radioactivity in soil due to anthropogenic activities..
Radioactivity is a normal and ubiquitous part of the environment. The most important sources of natural radioactivity are rocks containing radioactive isotopes of uranium, thorium, potassium, and other elements.
The most common radioactive isotope in air is carbon, formed when neutrons from cosmic ray showers react with nitrogen in the. The activity concentrations of naturally occurring U, Th and 40K in surface soils along Qarun Lake and Wadi El Rayan located in Faiyum, Egypt were determined.
The measurements were carried out through gamma-ray spectrometry using a coaxial HPGe detector. The results were compared with those reported in the literature. The radiological hazard radium-equivalent activity index, external and.
The activity concentrations of the natural radionuclides Ra, Th, and 40 K were determined in vegetable crops consumed by Malaysian people in Sungai Besar, Selangor. Sample of vegetables and the soil where the crops were cultivated and collected at five different location.
The activity concentrations in Bq/kg of Ra, Th, and 40 K were measured by the gamma-ray. In fact, it is actually quite common and can be found virtually all around us in the rocks, soil and air. Natural radioactivity maps may look quite similar to normal geologic maps.
Different types of rocks have specific levels of uranium and radon, so scientists often have a good idea of the levels based on geologic maps alone. Natural radioactivity in coastaline area soil of Ado-Odo/Ota has been carried out to ascertain the presence of radionuclides using gamma-ray.
natural radioactivity levels for groundwater in al hassa, ksa A.M Al Safarjalani 1, Yousef Al-Dakheel 2 and A.S. El Mahmoudi 2 1) College of Agriculture, Damascus University, Syria. Abstract. The natural radioactivity due to presence of Ra, Th and 40 K in soil of Nineveh zone, Nineveh province, Iraq were measured by using gamma-ray spectrometry based on high-purity germanium detector.
The specific activity of soil samples ranged from to Bq/kg with an average of value of ± Bq/kg, to Bq/kg with an average of ± Bq/kg.
Al Mugren, K. () Assessment of Natural Radioactivity Levels and Radiation Dose Rate in Some Soil Samples from Historical Area, AL-RAKKAH, Saudi Arabia.
Natural Science, 7, doi: /nsNatural radioactivity levels in soils, rocks and water at a mining concession of Perseus The specific levels are related to the type of rock from which the soil originates. Higher radioactivity levels are associated with igneous rocks such as granite and lower.Naturally occurring radiation can be found all around us.
Radiation can be found in soils, in our air and water, and in us. Because it occurs in our natural environment, we encounter it every day through the food we eat, the water we drink, and the air we breathe.