Data Series 283
U.S. GEOLOGICAL SURVEY
Data Series 283
Figure 20. The concentrations of tritium in ground water sampled from springs in Pinnacles National Monument in June 2006 are shown as triangles plotted at zero years, or present day at the time of this study, and the concentration range of tritium that remained in water that fell as precipitation in central coastal California when tritium concentrations in atmospheric water were at background levels between 9.6 and 16 pCi/L (green and black lines respectively).
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/ds/2007/283
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