Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Ralph L. Seiler"'
Autor:
Ralph L. Seiler
Publikováno v:
The Science of the total environment. 568
Polonium-210 ((210)Po) is a naturally-occurring, carcinogenic member of the (238)U decay series and the granddaughter of (210)Pb. It has a half life of 138.4days and is rarely found in drinking water at levels exceeding 5mBq/L because it strongly bin
Autor:
Ralph L. Seiler, Joseph L. Wiemels
Publikováno v:
Environmental Health Perspectives. 120:1230-1237
Background: Polonium-210 (210Po) concentrations that exceed 1 Bq/L in drinking-water supplies have been reported from four widely separated U.S. states where exposure to it went unnoticed for decades. The radionuclide grandparents of 210Po are common
Publikováno v:
Applied Geochemistry. 26:526-539
The discovery of natural 210 Po enrichment at levels exceeding 500 mBq/L in numerous domestic wells in northern Nevada, USA, led to a geochemical investigation of the processes responsible for its mobilization. 210 Po activities in 63 domestic and pu
Autor:
Ralph L. Seiler
Publikováno v:
Ground Water. 49:160-171
Polonium-210 ((210) Po) is a highly toxic alpha emitter that is rarely found in groundwater at activities exceeding 1 pCi/L. (210) Po activities in 63 domestic and public-supply wells in Lahontan Valley in Churchill County in northern Nevada, United
Autor:
Ralph L. Seiler
Publikováno v:
Applied Geochemistry. 20:1626-1636
Isotopic composition of NO 3 ( δ 15 N NO 3 and δ 18 O NO 3 ) and B ( δ 11 B) were used to evaluate NO 3 contamination and identify geochemical processes occurring in a hydrologically complex Basin and Range valley in northern Nevada with multiple
Publikováno v:
Applied Geochemistry. 20:423-441
An investigation of a childhood leukemia cluster by US Centers for Disease Control and Prevention revealed that residents of the Carson Desert, Nevada, are exposed to high levels of W and this prompted an investigation of W in aquifers used as drinki
Publikováno v:
Ground Water. 37:405-410
The presence of caffeine or human Pharmaceuticals in ground water with elevated nitrate concentrations can provide a clear, unambiguous indication that domestic waste water is a source of some of the nitrate. Water from domestic, public supply, and m
Autor:
Ralph L. Seiler
Publikováno v:
Journal of the American Water Resources Association. 32:1233-1245
From 1986 to 1993, the National Irrigation Water-Quality Program (NIWQP) of the U.S. Department of the Interior studied whether contamination was induced by irrigation drainage in 26 areas of the Western United States. In 1992, a study to evaluate an
Autor:
Ralph L. Seiler
Publikováno v:
Journal of Environmental Quality. 24:973-979
The U.S. Department of the Interior has investigated 25 areas in the western USA to determine whether irrigation drainage has caused harmful effects on wildlife or has reduced subsequent beneficial uses of the water. A database of chemical analyses o
Autor:
Ralph L, Seiler, Joseph L, Wiemels
Publikováno v:
Environmental Health Perspectives
Background: Polonium-210 (210Po) concentrations that exceed 1 Bq/L in drinking-water supplies have been reported from four widely separated U.S. states where exposure to it went unnoticed for decades. The radionuclide grandparents of 210Po are common