Radionuclides in Drinking Water. National Primary Drinking Water Regulations for Radionuclides. Proposed Rules

摘要

The regulations will: Propose Maximum Contaminant Level Goals (MCLGs) and Maximum Contaminant Levels (MCLs) for four radionuclide contaminants and two categories of radionuclides. The four radionuclide contaminants are: radium-226, radium-228, radon-222, and uranium. The two categories of radionuclides are adjusted gross alpha emitters, and beta and photon emitters. The category of adjusted gross alpha emitters regulates alpha emitters and is gross alpha measurement less uranium and less radium-226. The category of beta and photon emitters regulates total beta and photon emitters (mostly man-made).