Polonium Pollution @ Vermont’s 5 pCi/L Action Level vs
EPA’s Proposed Alternative MCL (AMCL) for Radon-222 in Drinking Water of 4,000 pCi/L
* NOTE: The horizontal line in Fig. 6 is 1.2 pCi/L; the activity at which Pb-210 in drinking water delivers a dose of 4 mRem/yr to an average person; the EPA MCL for Beta and/or Photon emitters adopted in 1976.
 List of Alpha emitters regulated by the EPA’s Radionuclides Rule of 1976 in CERCLA Dirctive No. 9283.1-14.includes Ra-226, Po-218, Po-214, Po-210 NOT Rn-222. [http://www.epa.gov/superfund/health/contaminants/radiation/pdfs/9283_1_14.pdf
 Curves in Fig. B & C from equations 20(a) to 21(d) in Algebraic approach to the radioactive decay equations, L. Moral and A. F. Pacheco, Am. J. Phys. 71, July 2003 @ http://users.df.uba.ar/sgil/physics_paper_doc/papers_phys/modern/radiactive_dacay.pdf .