Isotopic Tracers for Delineating Non-Point Source Pollutants in Surface Water

Davisson, M L

Lawrence Livermore National Laboratory

关键词: Surface Waters;    Oxygen 18;    Chlorine 36;    Missouri River;    Carbon 14;   

DOI  :  10.2172/15013601
RP-ID  :  UCRL-ID-148014
RP-ID  :  W-7405-ENG-48
RP-ID  :  15013601

美国|英语

来源: UNT Digital Library

【 摘 要 】

This study tested whether isotope measurements of surface water and dissolved constituents in surface water could be used as tracers of non-point source pollution. Oxygen-18 was used as a water tracer, while carbon-14, carbon-13, and deuterium were tested as tracers of DOC. Carbon-14 and carbon-13 were also used as tracers of dissolved inorganic carbon, and chlorine-36 and uranium isotopes were tested as tracers of other dissolved salts. In addition, large databases of water quality measurements were assembled for the Missouri River at St. Louis and the Sacramento-San Joaquin Delta in California to enhance interpretive results of the isotope measurements. Much of the water quality data has been under-interpreted and provides a valuable resource to investigative research, for which this report exploits and integrates with the isotope measurements.