Accession Number : ADA600070


Title :   Validation of Chlorine and Oxygen Isotope Ratio Analysis To Differentiate Perchlorate Sources and To Document Perchlorate Biodegradation


Descriptive Note : Final rept. May 2005-Dec 2010


Corporate Author : GEOLOGICAL SURVEY WASHINGTON DC


Personal Author(s) : Hatzinger, Paul B ; Bohlke, J K ; Sturchio, Neil C ; Gu, Baohua


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a600070.pdf


Report Date : 31 May 2013


Pagination or Media Count : 263


Abstract : Perchlorate in the environment is derived from both synthetic and natural sources. Synthetic perchlorate salts have been widely used as oxidants by the military and aerospace industry. A variety of commercial products also contain synthetic perchlorate. In addition to synthetic sources, natural perchlorate from both Chilean fertilizers and indigenous sources represents a potentially large source of perchlorate in groundwater and drinking water in the US. During this ESTCP project, chlorine and oxygen isotope analysis was utilized to both distinguish perchlorate sources and to document perchlorate biodegradation. Chlorine and oxygen isotopic analyses of perchlorate provide the primary direct approach whereby different sources of perchlorate can be distinguished from each other. Other isotopic, chemical, and geochemical techniques that can be applied in conjunction with isotopic analyses of perchlorate to provide supporting data in forensic studies are also described.


Descriptors :   *BIODEGRADATION , *CHLORINE , *GROUND WATER , *OXYGEN , *PERCHLORATES , *SOILS , EXTRACTION , FRACTIONATION , MASS SPECTROMETRY , NITRATES , PURIFICATION , RATIOS , SAMPLING , SITE INVESTIGATIONS , STABLE ISOTOPES


Subject Categories : Biochemistry
      Inorganic Chemistry
      Hydrology, Limnology and Potamology
      Water Pollution and Control


Distribution Statement : APPROVED FOR PUBLIC RELEASE