RADIOECOLOGICAL STUDIES ON THE COLUMBIA RIVER Part I

Dg, Watson; Cushing, C.E.; Coutant, CC; Templeton, WL

doi:10.2172/963373

Cited by 4 publications

(9 citation statements)

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“…During that interval, most radionuclides were produced after neutron activation of stable elements in the cooling water and the sloughing off of radioactive corrosion products from the reactor cooling tubes. Radionuclides of greatest biological importance during early studies on aquatic biota were 32p and 65Zn (Watson et al 1970). Historical data clearly show that these two radionuclides and 5lCr were readily taken up by white sturgeon during the years of peak reactor operation.…”

Section: Discussionmentioning

confidence: 99%

“…The earliest known record of radionuclide analysis in white sturgeon was from Davis et al 1969;Foster and staff 1962Foster and staff , 1963Foster and staff , 1964Foster and staff , 1965Foster and staff , 1966Honstead and staff 1967;Watson et al 1970). During that interval, white sturgeon were collected by various methods from McNary to Priest Rapids Dams.…”

Section: Cal Studmsmentioning

confidence: 99%

“…General locations of capture, were usu'dly reported. Typically, the gut contents were removed, a sample from the anterior gut was retained for radioanalysis, and the fish was separated into muscle and carcass (i.e., remainder) fractions that were ground into a homogenate (Watson et 'al. 1970).…”

Section: Cal Studmsmentioning

confidence: 99%

“…Gamnm radiation was measured with an Nai well crystal with readout on a 400-channel analyzer. Measurements were usually made of the following radionuclides: 24Na, 46Se, 5lCr, 54Mn, 59Fe, 60Co, 65Zn, 95Zr/Nb, 106Ru/Rh, 131I, 137Cs, 140Ba, 140La, 144Cr/Pr, and 239Np (Watson et al 1970). P Selection of radionuclides for analysis in 1989 and 1'990 was based on the following criteria: 1) relatively long physical half-lite, 2) low biological turnover rate, and/or 3)kalown presence in the environment (Table 1).…”

Section: Radionuclide Analysismentioning

confidence: 99%

“…During this interval, concentrations of certain radionuclides were routinely monitored in algae, invertebrates, and fish. "Haemajority of this information was summarized in special reports, including Davis et al (1956), Watson et al (1970), and annual reports to the U.S. (Foster et al , 1963(Foster et al , 1964(Foster et al , 1965.…”

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confidence: 99%

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Radionuclide concentrations in white sturgeon from the Columbia River

Dauble¹,

Price²,

Poston³

1992

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Although radioactive releases from the U.S. DepaItment of Energy's Hanford Site have been monitored ha the environment since the reactors began operating in 1945, recent information regarding historical releases of radionuclides has led to renewed in.terest in estimating human exposure ure to radionuclides at Hanford. Knowledge of the fate of radionuclides in some fish species may be important because of the potential for food-chain transfer to humans. White sturgeon. (Acipenser _ansmonranu_ were selected for study because they are long-lived, reside year-round in the Hanford Reach, are benthic, and are an important commercial and sport species _nthe Columbia River. They also have a greater potential for accumulating persistent radionuclides than shorter-lived species with pelagic and/or anadromous life histories. The purpose of our study was to summarize data on historical concentrations of indusu'ial radionuclides in white su,age.on and to collect addi'tional data on current body burdens in the Columbia River. Historic data on concentrations in white sturgeon were gleaned from a number of reports. Studies conducted from 1953 to 1955 indicated that high concentrations of radionuclides (as total beta) were present in some internal organs and on the external surface of white sturgeon from the Hanford Reach, Average concentrations were about 40 pCi/g for liver and kidney and exceeded 60 pCi/g fbr fins and scutes. The principal radionuclides present ip tire tissues of white sturgeon collected from the Hanford Reach duaing 1963 to 1967 were 32p, 5lCr ' and 65Zn. Average concentrations of 32p in muscle were typically two to seven times greater than 65Zn and ranged from 25 to 57 pCi/g. When separate tissues were taken from sturgeon, ave;_ageconc_'ntrations of radionuclides were usually in the order gut contents > carcass> muscle. Limited data from locations in the Columbia River downstream of the Hartford Reach in 1953, 1965, and 1966 indicated that low amotmts of radionuclides were available for uptake by white sturgeon. Esti.. mated dose contribution from consumption of sturgeon in the mid-1960s was less than the dose. estimated from consumption of more commonly harvested fish species (e.g., mountain whitefish). A field stuciy conducted in 1989 and 1990, as an activity of the Hanford Site Surface Environmental Surveillance Project, showed that radionuclide concentrations in white sturgeon tissue from the Hanford R.each had decreased dramatically since the time of major reactor operation. Maximum concentt_ations for any measured industrial radionuclide in muscle madcartilage of white sturgeon collected from several locations in the Columbia River were less than 0.01 pCi/g. Principal radionuclides of historical significance (32p, 5 lCr , and 65Zn) were not detected in these samples, Tl'_epotential annual dose from Hanford-orgin radionuclides to individuals consuming "¢'t 'I sturgeon muscle in 1991 would be,less than 0.01 mrern. Thus, present levels of radionuclides found in edible tissue of white sturgeon pose no risk ...

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Section: Discussionmentioning

confidence: 99%

Section: Cal Studmsmentioning

confidence: 99%

Section: Cal Studmsmentioning

confidence: 99%

Section: Radionuclide Analysismentioning

confidence: 99%

mentioning

confidence: 99%

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Radionuclide concentrations in white sturgeon from the Columbia River

Dauble¹,

Price²,

Poston³

1992

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The Implications of Climate Change Litigation for International Environmental Law-Making

Hunter

2007

SSRN Journal

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Radionuclide concentrations in white sturgeon from the Columbia River

Dauble¹,

Price²,

Poston³

1992

View full text Add to dashboard Cite

A volunteer program was initiated with sport fishers in the Hanford Reach and the lower Columbia River nem"Chinook, Washington. This resulted in the donation of several carcasses for radionuclide analysis. Additio,aal samples were purchased from commercial fish buyers at Ilwaco, Washington. The Oregon State Police provided samples from four oversize sturgeon (> 183 cm) that were confiscated from illegal fishing activities near The Dalles Dam.When possible, total length, weight, capture date and location, sex, and degree of maturity were recorded for each fish• Age analysis was conducted using sections taken from pectoral fins as described in Hess (I984). After initial data collection in the field, fish were eviscerated, skinned, and prepared for laboratory analysis. Tissues analyzed consisted of skinless muscle fillets, liver minus gallbladder, and head cartilage. Ali samples were rinsed with distilled water, sealed in plastic bags_ and frozen for up to 12 months before analysis.

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RADIOECOLOGICAL STUDIES ON THE COLUMBIA RIVER Part I

Cited by 4 publications

References 2 publications

Radionuclide concentrations in white sturgeon from the Columbia River

Radionuclide concentrations in white sturgeon from the Columbia River

The Implications of Climate Change Litigation for International Environmental Law-Making

Radionuclide concentrations in white sturgeon from the Columbia River

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