Thorium is a naturally occurring radioactive metal that is found in soil, rock, and water. It is formed by the radioactive decay of uranium. Minerals such as monazite, thorite, and thorianite are rich in thorium and may be mined for the metal. Thorium has coloring properties that have made it useful in ceramic … See more The primary ways people are exposed to thorium are inhalation, intravenous injection, ingestion, and absorption through the skin. More than 2.5 million people worldwide … See more Studies of patients who received intravascular injections of Thorotrast found an increased risk of liver tumors among these individuals. And there is research evidence that inhaling thorium dust increases the … See more Occasionally, household items may be found to contain thorium, such as some older ceramic wares in which uranium was used in the glaze, or … See more WebNo exposure limit (OSHA, ACGIH, NIOSH) has been established for any component comprising greater than 1/10 of 1% of these CRMs. Subject to SARA section 313 Annual …
Naturally-Occurring Radioactive Materials (NORM)
WebDec 1, 2016 · Exposure to radionuclide thorium (Th) has generated widespread public concerns, mainly because of its radiological effects on human health. Activity levels of … WebMeasurements have indicated that the exposure rate at a depth of 10 cm in the body of an individual carrying a camera containing 0.36 uCi of thorium would be approximately 0.01 … etymology of babble
Thorium - Element information, properties and uses Periodic Table
WebMay 16, 2024 · V. Koukouliou, K. Potiriadis, K. Kehagia: Exposure to thorium caused by the cutting of a turbine engine component.. 1st Hellenic Syposium of Environmental … WebThorium oxide is, therefore, a low level radioactive material which may give rise to both a small external radiation hazard and an internal hazard from ingestion or inhalation. The … WebThorium is poorly absorbed from both the lung and digestive tract, and 70% of the thorium reaching the blood is translocated to the bone, 4% to the liver, and 16% to all other organs … firewood rolleston