Poor agreement between 3H/3He ages and CFC-11 and CFC-12 ages suggests that CFCs may not be conservative tracers in the Everglades National Park. 3H/3He ages were used to calculate the expected concentration of CFC-11 and CFC-12 in groundwater from wells 2 to 73 m deep. The expected concentrations of CFCs were compared to the measured concentrations and plots of the % CFC-12 and CFC-11 remaining offered no evidence that significant CFC removal was occurring in the groundwater at depths ≥2 m, suggesting that CFC removal occurs at shallower depths. Except where CFC contamination was suspected, CFC-11, CFC-12 and CFC-113 concentrations in fresh surface water were nearly always below solubility equilibrium with the atmosphere. Measurements of C...
Unconventional natural gas development via horizontal drilling and hydraulic fracturing has greatly ...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) are increasingly being used to date recent...
Study region: Montserrat, Lesser Antilles, Caribbean. Study focus: Analysis of δ2H and δ18O isotopes...
Poor agreement between 3H/3He ages and CFC-11 and CFC-12 ages suggests that CFCs may not be conserva...
Poor agreement between 3H/3He ages and CFC-11 and CFC-12 ages suggests that CFCs may not be conserva...
Chlorofluorocarbons CFC-11 (CCl3F), CFC-12 (CCl2F2), and CFC-113 (CCl2F–CClF2) are used in hydrology...
At the U.S. Geological Survey's fractured-rock hydrology research site at Mirror Lake, N.H., co...
Groundwater residence time is a fundamental property of groundwater to understand important hydrogeo...
ABSTRACT: Chlorofluorocarbons (CFCs) are synthetic halogenated volatile organic compounds that have ...
Abstract Chlorofluorocarbons (CFCs) are stable volatile organic compounds that have been manufacture...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) provide a technique for dating groundwater...
Both natural and anthropogenic tracers were used to provide estimates of groundwater flow within Eve...
Groundwater residence time is a fundamental property of groundwater to understand important hydrogeo...
Groundwater residence time is a fundamental property of groundwater to understand important hydrogeo...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) are increasingly being used to date recent...
Unconventional natural gas development via horizontal drilling and hydraulic fracturing has greatly ...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) are increasingly being used to date recent...
Study region: Montserrat, Lesser Antilles, Caribbean. Study focus: Analysis of δ2H and δ18O isotopes...
Poor agreement between 3H/3He ages and CFC-11 and CFC-12 ages suggests that CFCs may not be conserva...
Poor agreement between 3H/3He ages and CFC-11 and CFC-12 ages suggests that CFCs may not be conserva...
Chlorofluorocarbons CFC-11 (CCl3F), CFC-12 (CCl2F2), and CFC-113 (CCl2F–CClF2) are used in hydrology...
At the U.S. Geological Survey's fractured-rock hydrology research site at Mirror Lake, N.H., co...
Groundwater residence time is a fundamental property of groundwater to understand important hydrogeo...
ABSTRACT: Chlorofluorocarbons (CFCs) are synthetic halogenated volatile organic compounds that have ...
Abstract Chlorofluorocarbons (CFCs) are stable volatile organic compounds that have been manufacture...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) provide a technique for dating groundwater...
Both natural and anthropogenic tracers were used to provide estimates of groundwater flow within Eve...
Groundwater residence time is a fundamental property of groundwater to understand important hydrogeo...
Groundwater residence time is a fundamental property of groundwater to understand important hydrogeo...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) are increasingly being used to date recent...
Unconventional natural gas development via horizontal drilling and hydraulic fracturing has greatly ...
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) are increasingly being used to date recent...
Study region: Montserrat, Lesser Antilles, Caribbean. Study focus: Analysis of δ2H and δ18O isotopes...