The U.S. Geological Survey has been conducting studies on the occurrence of radionuclides in the ground water of southeastern Pennsylvania since 1985. Ground water has been sampled for radium-224, radium-226, radium-228, radon-222, uranium, gross alpha particle activity, and gross beta particle activity.
Lindsay, B.D., and Ator, S.W., 1996, Radon
in ground water of the Lower Susquehanna and Potomac River Basin:
U.S. Geological Survey Water-Resources Investigations Report 96-4156, 4 p.
[ online report]
Senior, L.A., and Sloto, R.A., 2000, Radium-224 and its relation to gross-alpha-particle,
radium-226, and radium-228 activities in ground water from rocks of the Piedmont Physiographic
Province, southeastern Pennsylvania [abstract]: Geological Society of America Abstracts with
Programs, Northeastern Section, v. 32, no. 1, p. A-73.
[ abstract ]
Sloto, R.A., 2000, Naturally
Occurring Radionuclides in the Ground Water of Southeastern Pennsylvania:
U.S. Geological Survey Fact Sheet 012-00, 8 p.
[ online report ]
[ PDF file ]
Sloto, R.A and Senior, L.A., 1998, Radon in the ground water of Chester County, Pennsylvania:
U.S. Geological Survey Fact Sheet 120-98, 4 p.
[ PDF file ]
[ abstract ]
[ online report ]
Sloto, R.A., and Senior, L.A., 2000, Radon-222 activities in the ground water of the Piedmont
Physiographic Province, southeastern Pennsylvania [abstract]: Geological Society of America
Abstracts with Programs, Northeastern Section, v. 32, no. 1, p. A-75.
[ abstract ]
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