Comparison of sediments and organisms in identifying sources of biologically available trace metal contamination

Thomson, Elizabeth; Luoma, Samuel N.; Johansson, Christopher; Cain, Daniel J.

doi:10.1016/0043-1354(84)90172-6

Cited by 96 publications

(44 citation statements)

References 13 publications

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“…Silver contamination has been reported from South Bay since the 1970s (Thomson et al, 1984;Luoma and Phillips, 1988;Smith and Flegal, 1995). The highest Ag concentrations in San Francisco Bay cores are similar to the highest concentrations found in central Puget Sound, but are less than the highest Ag concentrations found in some other coastal systems (Daskalakis and O'Connor, 1995;Bricker, 1996;Huh, 1996).…”

Section: Discussionmentioning

confidence: 99%

Historical trends of metals in the sediments of San Francisco Bay, California

et al. 1999

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Section: Discussionmentioning

confidence: 99%

Historical trends of metals in the sediments of San Francisco Bay, California

et al. 1999

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“…Approximately 60 Macoma balthica were collected monthly from January 1981 through June 1982 in South San Francisco Bay near Palo Alto (Thomson et al 1984). After a 2 d depuration period, 20 of these clams were separated into 5 to 7 samples, each containing individuals differing by 1 mm shell length or less.…”

Section: Methodsmentioning

confidence: 99%

“…Changes also were followed in the intracellular fractionation of Cu, Ag and Zn over an 18 mo period in a population of M. balthica collected from South San Francisco Bay. This metal-tolerant population (Luoma et al 1983) resides near a n anthropogenic source of trace metal input (Thomson et al 1984). Whole body concentrations of Cu and Ag fluctuate seasonally and from year to year (Luoma & Cain 1979, Strong & Luoma 1981.…”

Section: Introductionmentioning

confidence: 99%

Variability in the fractionation of Cu, Ag, and Zn among cytosolic proteins in the bivalve Macoma balthica

Johansson¹,

Cain²,

Luoma³

1986

Mar. Ecol. Prog. Ser.

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Gel filtration chromatographs of cytosols from the clam Macorna balthica analysed from both field and laboratory treated specimens showed that uptake of Cu, Ag, and Zn in the metallothionein-like protein (MLP) pool follows exposure both in nature and in the laboratory. Specimens collected from San Francisco Bay over 18 mo showed strong temporal variability in the fractionation of the metals among cytosolic proteins. A marked increase in Cu, Ag, and Zn in a very low molecular weight pool occurred when concentrations were highest In the MLP pool. The correlation between total cytosollc metal and MLP-metal also appeared to approach a hyperbolic character at the highest concentrations.

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“…The clam, Macoma balthica, contained silver at 32-133 µg/g (dry weight tissue) in an area of San Francisco Bay near a sewage outfall; background concentrations in this species in the bay were less than 1 µg/g (Thomson et al 1984). These data indicate that inputs of silver to an estuary are available to sediment-dwelling animals.…”

Section: Transport and Partitioningmentioning

confidence: 72%

“…Higher levels of silver have been detected in shellfish near industrial or sewage inputs (Byrne and DeLeon 1986;Pesch et al 1977;Thomson et al 1984) and are likely to occur in crops grown on sludgeamended soils, in the vicinity of smelters or mining operations, or in areas with naturally high background silver levels.…”

Section: Populations With Potentially High Exposuresmentioning

confidence: 99%