干旱区生态环境知识资源中心(Arid): Environmental monitoring report on the status of ground water beneath the Hanford Site, January--December 1976. [/sup 60/Co, /sup 106/Ru, /sup 3/H, beta particles]

Arid

DOI	10.2172/7307064
报告编号	BNWL-2199
来源ID	OSTI_ID: 7307064
	Environmental monitoring report on the status of ground water beneath the Hanford Site, January--December 1976. [/sup 60/Co, /sup 106/Ru, /sup 3/H, beta particles]
	Myers, D.A.; Fix, J.J.; Raymond, J.R.
英文摘要	Data collected during 1976 describe the movement of the major plumes (..beta.., /sup 3/H and NO/sub 3//sup -/) that respond to the influences of groundwater flow, ionic dispersion and radioactive decay. The total beta plume, which has been essentially stagnant in recent years, is starting to recede. However, detailed comprehensive analysis of water from within this plume indicates that some highly mobile ionic species may be present. These species, which include /sup 60/Co and /sup 106/Ru, occur in extremely low concentrations because of the nature of their transport. The tritium plume is still expanding, and low concentrations are expected to reach the Columbia River sometime in the near future. Improved sampling techniques have resulted in improved delineation of this plume's expansion. The nitrate plume has expanded so that it now includes the small zone around the 300 Area. All three plumes exhibit a three-lobed pattern indicative of the hydrogeologic system underlying the Hanford Site. The lobes point out zones where the transmissivity of the earth materials is greater than that of the surrounding areas. These zones of higher transmissivity can be interpreted as being reworked sands and gravels deposited by the ancient Columbia River as it changed its course through time. The extent of each plume depends upon the characteristics of the individual contaminant. Nitrate ion and tritium are the most widespread of the species being monitored, nitrate because of its high solubility, and tritium because it becomes an integral part of the water molecule. The total beta plume is smaller because its major constituents, cobalt-60 and ruthenium-106, have short half lives and also have some capability for ion exchange with the soil.
出版年	1977
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	54 ENVIRONMENTAL SCIENCES ; HANFORD RESERVATION ; RADIATION MONITORING ; BETA PARTICLES ; COBALT 60 ; COLUMBIA RIVER ; CONTAMINATION ; DECAY ; ENVIRONMENTAL EFFECTS ; FALLOUT ; GROUND WATER ; HANFORD PRODUCTION REACTORS ; MONITORING ; NITRATES ; PLUMES ; RADIOACTIVE EFFLUENTS ; RUTHENIUM 106 ; SAMPLING ; SOILS ; TRITIUM ; BETA DECAY RADIOISOTOPES ; BETA-MINUS DECAY RADIOISOTOPES ; CHARGED PARTICLES ; COBALT ISOTOPES ; EVEN-EVEN NUCLEI ; HYDROGEN COMPOUNDS ; HYDROGEN ISOTOPES ; INTERMEDIATE MASS NUCLEI ; INTERNAL CONVERSION RADIOISOTOPES ; ISOMERIC TRANSITION ISOTOPES ; ISOTOPES ; LIGHT NUCLEI ; MINUTES LIVING RADIOISOTOPES ; NATIONAL ORGANIZATIONS ; NITROGEN COMPOUNDS ; NUCLEI ; ODD-EVEN NUCLEI ; ODD-ODD NUCLEI ; OXYGEN COMPOUNDS ; PLUTONIUM PRODUCTION REACTORS ; PRODUCTION REACTORS ; RADIOACTIVE MATERIALS ; RADIOACTIVE WASTES ; RADIOISOTOPES ; REACTORS ; RIVERS ; RUTHENIUM ISOTOPES ; STREAMS ; SURFACE WATERS ; US ERDA ; US ORGANIZATIONS ; WASTES ; WATER ; YEARS LIVING RADIOISOTOPES 510300* -- Environment, Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989) ; 520300 -- Environment, Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
URL	http://www.osti.gov/scitech/servlets/purl/7307064
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/261751
推荐引用方式 GB/T 7714	Myers, D.A.,Fix, J.J.,Raymond, J.R.. Environmental monitoring report on the status of ground water beneath the Hanford Site, January--December 1976. [/sup 60/Co, /sup 106/Ru, /sup 3/H, beta particles],1977.