Because of the specificity of its uptake by the human body, radioactive isotopes of iodine can also be used to treat thyroid cancer . (wikipedia.org)
All of the remaining radioactive isotopes have half-lives less than 4 hours, and the majority of these have half-lives less than 2 minutes. (wikimili.com)
There are 22 other artificial isotopes, all radioactive and having very short half-lives. (ontologyportal.org)
Am-Americum are radioactive isotopes and have a half-life of 7,950 years. (mighty-90.com)
Since thorium and uranium are two of the most common radioactive elements on Earth, while also having three isotopes with half-lives on the order of several billion years, radon will be present on Earth long into the future despite its short half-life. (knowpia.com)
Thorium2
Most of China's light rare earth deposits ores can be industrially mined, but thorium (Th) and other radioactive elements are difficult to treat, and therefore great attention must be paid to its impact on people's health and the ecology when they are mined, smelted and separated. (china-embassy.gov.cn)
It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into various short-lived radioactive elements and eventually into stable lead . (knowpia.com)
Iodine3
For more information about UF6 and the ATSDR Oak Ridge public health assessment visit http://www.atsdr.cdc.gov/HAC/Oakridge/phact/iodine/index.html or contact Jack Hanley at 770/ 488-0736 or call 1-800-CDC-INFO. (cdc.gov)
The Agency for Toxic Substances and Disease Registry (ATSDR) announced that recently discovered evidence suggests Iodine-131 (I-131) releases occurring between 1944 and 1956 from the X-10 Site at the Oak Ridge National Laboratory (ORNL) did not extend beyond the facility boundary at levels that would constitute a public health hazard. (cdc.gov)
ATSDR scientist evaluated whether past air releases of iodine 131 (I-131) from the production of radioactive lanthanum (RaLa) at the X-10 site could have harmed people living near the Oak Ridge Reservation. (cdc.gov)
Promethium1
In the periodic table, it appears between the lanthanides praseodymium to its left and the radioactive element promethium to its right, and above the actinide uranium. (wikipedia.org)
Exposures4
ATSDR found potential chronic (long-term) exposures to fluoride and hydrogen fluoride were not a public health hazard for people living near the ORGDP. (cdc.gov)
Because of the high uncertainty of the estimated concentrations of these substances, ATSDR was unable to arrive at any conclusions about the true nature of any acute (short-term) health hazards from potential exposures to hydrogen fluoride. (cdc.gov)
ATSDR evaluated past and current exposure to uranium released from the Y-12 plant and found that the off-site exposures to uranium were too low to be a health hazard for either radiation or chemical health effects. (cdc.gov)
[8] Significant uncertainties exist for the health effects of low-dose exposures. (knowpia.com)
Acute2
After evaluating potential chronic and acute exposure to ionizing radiation and uranium releases, ATSDR found those doses were not expected to cause adverse health effects for people living near the ORGDP. (cdc.gov)
Because sufficient historical data on these releases do not exist, ATSDR scientists developed a worst-case scenario using records from a September 1, 1958 accidental release and mathematical dispersion modeling to evaluate the acute (short-term) exposure to hydrogen fluoride. (cdc.gov)
Precautionary1
ATSDR recommends DOE continue to take precautionary measures to prevent any off-site releases of contaminants remaining at the ETTP. (cdc.gov)
Public health assessment3
ATLANTA - No public health hazards occurred from past atmospheric releases of ionizing radiation, uranium, fluoride and hydrogen fluoride from the Oak Ridge Gaseous Diffusion Plant (ORGDP) is the conclusion of a public health assessment issued by the federal Agency for Toxic Substances and Disease Registry (ATSDR). (cdc.gov)
ATLANTA - The Agency for Toxic Substances and Disease Registry (ATSDR) released its public health assessment (PHA) of historical air releases from the K-25/S-50 sites at the Oak Ridge Reservation in Tennessee. (cdc.gov)
ATSDR scientists conducted a public health assessment to evaluate off-site residents' exposure to Y-12 plant-related mercury from 1950 to 2009. (cdc.gov)
Due to its intense radioactivity, which results in the radiolysis of chemical bonds and radioactive self-heating, its chemistry has mostly been investigated on the trace scale only. (wikizero.com)
Substances4
The study looked at the atmospheric releases of radioactive and nonradioactive hazardous substances from the K-25/ S-50 facilities between 1944 and 1995 when the facility closed. (cdc.gov)
This Web site is provided by the Agency for Toxic Substances and Disease Registry (ATSDR) ONLY as an historical reference for the public health community. (cdc.gov)
ATSDR scientists evaluated the potential health effects of past K-25 and S-50 air releases of radioactive and nonradioactive hazardous substances for people living in nearby, off-site communities. (cdc.gov)
Decay1
Unlike all other intermediate elements in the aforementioned decay chains, radon is, under standard conditions, gaseous and easily inhaled, and therefore a health hazard. (knowpia.com)
Ridge Reservation1
ATSDR scientists evaluated exposure to PCBs released from all three facilities at the Oak Ridge Reservation. (cdc.gov)
Periodic1
Silvery radioactive metallic element, belongs to group 3 of the periodic table. (ontologyportal.org)
Metallic3
Radioactive metallic transuranic element, belongs to the actinoids. (ontologyportal.org)
Polonium is a radioactive element that exists in two metallic allotropes . (wikizero.com)
Contaminants1
ATSDR found that the TSCA Incinerator releases very small amounts of contaminants into the environment, but the amounts are far below levels associated with health effects. (cdc.gov)
ATSDR4
Similarly, ATSDR looked at doses of fluoride and hydrogen fluoride released into the atmosphere either accidentally or in controlled releases during routine maintenance. (cdc.gov)
ATSDR conducted two health consultations on East Fork Poplar Creek evaluating public health issues of concern to the community bordering the creek. (cdc.gov)
ATSDR staff members conducted a health consultation, a community and physician education program, and an exposure investigation in response to health concerns of residents living in the area of the Watts Bar Reservoir. (cdc.gov)
In addition to the work on East Fork Poplar Creek and the Watts Bar Reservoir, ATSDR has conducted other public health activities as physician education and technical consultation. (cdc.gov)
Potential2
ATSDR's investigation indicates no potential current or future hazards to off-site residents have been identified, but the site remediation continues. (cdc.gov)
Hazard is the potential for the toxicity to be realized in a specific setting or situation. (iloencyclopaedia.org)
Effects3
Toxicity rating is an arbitrary grading of doses or exposure levels causing toxic effects. (iloencyclopaedia.org)
Some toxic effects, such as death or cancer, are not graded but are "all or none" effects. (iloencyclopaedia.org)
The dose-response curve for most toxic effects (when studied in large populations) has a sigmoid shape. (iloencyclopaedia.org)
Elements1
The associated radioactive elements of light rare earth minerals pose major problems for the environment. (china-embassy.gov.cn)
Highly2
Red mud is a toxic and highly alkaline waste. (researchgate.net)
The grading can be "supertoxic," "highly toxic," "moderately toxic" and so on. (iloencyclopaedia.org)
Levels1
Argentina and New Zealand actually have toxic levels of arsenic in some soil regions. (mighty-90.com)
Short1
At-Atatine is a radioactive isotope with an extremely short half-life of 7.2 to 8 hours. (mighty-90.com)
Equipment1
This chapter discusses the hazards likely to be encountered by persons working in the manufacture of batteries, electric cables, electric lamps and general domestic electrical equipment. (iloencyclopaedia.org)
Underground1
Radioactive wastes were stored in underground tanks. (wikipedia.org)
Found1
Due to its high atomic number and ease of attachment to organic compounds , it has also found favour as a non-toxic radiocontrast material. (wikipedia.org)
Alpha1
A milligram (5 curies ) of 210 Po emits about as many alpha particles per second as 5 grams of 226 Ra , [4] which means it is 5,000 times more radioactive than radium. (wikizero.com)
Important1
Toxicity classification concerns the grouping of chemicals into general categories according to their most important toxic effect. (iloencyclopaedia.org)
Plant1
2. Acting Administrator, Animal and Plant Health Inspection Service. (sfroundup.com)
Impact1
2) A deficiency in any one of these nutrients will impact our health and can be directly linked to disease(s). (mighty-90.com)