EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Tri chlorofluoro methane in ground water a possible tracer and indicator of ground water age


Water Resources Research 15(3): 546-554
Tri chlorofluoro methane in ground water a possible tracer and indicator of ground water age
CCl3F, an entirely man-made material, is a detectable component of the atmosphere. Due to its unique atmospheric history, the presence of CCl3F in groundwater is potentially significant in terms of groundwater age. The age relationship stems from the fact that precipitation, exposed to CCl3F in the atmosphere, picks up an amount proportional to the atmospheric CCl3F concentration. If a portion of this water infiltrates into the subsurface to become groundwater, it can be differentiated from older groundwater (that infiltrated prior to the buildup of CCl3F in the atmosphere) on the basis of its CCl3F content. To evaluate the temporal significance of CCl3F in groundwater, preliminary investigations were conducted in 3 areas where the hydrology was well understood and where 3H measurements were made in the past. They were the Wharton tract of southern New Jersey, Hot Springs National Park in Hot Springs, Arkansas and the Edwards aquifer of south central Texas [USA]. The CCl3F data and the hydrologic controls agreed. The Texas study revealed a series of anomalous CCl3F concentrations (up to 35 .times. 10-9 g CCl3F/l H2O) that were too high to be of atmospheric origin. The anomalous points occurred in a line extending from the northwest corner of San Antonio for a distance of 74 km northeast along the Balcones fault zone and presumably represent the migration of CCl3F from a point source indicating the potential of this and similar compounds as hydrologic tracers.

(PDF 0-2 workdays service: $29.90)

Accession: 006839911



Related references

The use of geophysics, tracer studies and ground water flow modeling in the design of a soil vapor extraction and ground water remediation system at a gasoline contaminated site; a case study. Abstracts with Programs Geological Society of America: , Pages 506. 1994., 1994

Spatial variation in ground water chemistry as an indicator of heterogeneity in ground water flow in the Cuyahoga River basin, northeastern Ohio. Abstracts with Programs - Geological Society of America 22(7): 61, 1990

Ground-water, surface-water, and bottom-sediment contamination in the O-field area, Aberdeen Proving Ground, Maryland, and the possible effects of selected remedial actions on ground water. 1995

Contamination of ground water, surface water, and soil, and evaluation of selected ground-water pumping alternatives in the Canal Creek area of Aberdeen Proving Ground, Maryland. 1996

Ground-water withdrawals and changes in ground-water levels, ground-water quality, and land-surface subsidence in the Houston District, Texas 1980-84. 1987

Methane in ground water and its effect on carbon 14 ground water dating. Journal of Hydrology (Amsterdam) 52(3-4): 355-358, 1981

Depth of ground-water depletion and ground-water storage in forest soils with lowered ground-water levels in the Hessian Marsh. Zeitschrift fuer Kulturtechnik und Flurbereinigung 26(3): 138-149, 1985

Ground-water cleanup vs. ground-water protection; where should the $$$ go? Perspective 6, Clarifying the scientist's role in the ground-water remediation process. GSA Today 3(9): 231-233, 1993

Nova acta leopoldina vol 38 no 6 ground water and vegetational structures ground water course coincidence method and variability diagram in the contest of ecological investigations on vegetational units affected by ground water. Nova Acta Leopoldina Supplementum 172, 1973, 1975

Increased use of ground-water resources in arid and semi-arid countries; artificial recharge of ground water and development of ground water in hard rocks. Aqua: Pages 126-127. 1977., 1977