Radionuclide emissions

Eikf.nbf.ro, J., Beer, H. Baio, S. 2004. Anthropogenic radionuclide emissions into the environment. In Giere, R. Stii.i.f, P. (eds) 2004. Energy, Waste, and the Environment a Geochemical Perspective. Geological Society, London, Special Publications, 236, 143-151. 

Anti-CD20 mAbs have also been developed for use in the radioimmunotherapy (RIT) of B-cell neoplasms. Compared with unlabeled or naked mAh strategies, RIT has the theoretical advantage of increased potency via radionuclide emission that does not depend on host immune mechanisms, and so-called bystander toxicity in which cancer cells not bound by mAbs may still be lethally irradiated if located sufficiently close to bound mAh on other cells. An additional rationale for RIT in the treatment of NHL and other hematologic malignancies is the exquisite sensitivity of many of these diseases to radiation therapy. 

The sample is purified by distillation to separate the tritium-containing water from both non-radioactive and radioactive impurities. Various substances can cause scintillations by means other than radionuclide emission - by chemical fluorescence or luminescence - or interfere with ( quench ) detection of scintillations due to radionuclides. Even after purification, both processes are inevitable, but to a limited extent. Luminescence due to visible light will decay when the sample is stored in a darkened region of the LS system before the sample is counted. The degree of quenching, notably due to water in the sample, is determined instrumentally by reference to comparison sources and recorded, so that any deviation from the quenching observed for the tritium standard can be taken into account. 

Radionuclide Emissions from Facilities Yes Licensed by Nuclear Regulatory Commission and federal facilities not covered by Subpart H Applicability... 

All this enables us to obtain reliable and full information under the normal work regime of a nuclear power plant and in the case of increased radionuclide emission into the environment (incidents, emergencies). 

Methods for estimating radionuclide emissions EPA 2001m 40CFR61, Appendix D... 

Test method for measuring radionuclide emissions from stationary sources Method 114 EPA 2001 e 40CFR61, Appendix B... 

EPA. 1989b. Methods for estimating radionuclide emissions. U.S. Environmental Protection Agency. Code of Federal Regulations. 40 CFR 61, Appendix D. 

A Guide for Determining Compliance with the Clean Air Act Standards for Radionuclide Emissions from... 

Ambient air q lity standards and radionuclide emission limits mandate that radionuclides in the air mist not cause a maximini accumulated dose equi of more than 25 mill to the whole body or 75 millirem/year to a critical organ of any member of the public (excluding doses from radon and radon decay products). (NOTE ... 

---