Influence of Acid Volatile Sulfide and Metal Concentrations on Metal Bioavailability to Marine Invertebrates in Contaminated Sediments

2000 ◽  
Vol 34 (21) ◽  
pp. 4517-4523 ◽  
Author(s):  
Byeong-Gweon Lee ◽  
Jung-Suk Lee ◽  
Samuel N. Luoma ◽  
Heeseon Jeon Choi ◽  
Chul-Hwan Koh
Keyword(s):  
Marine Invertebrates ◽  
Contaminated Sediments ◽  
Acid Volatile Sulfide ◽  
Metal Bioavailability ◽  
Metal Concentrations

The Pseudomonas community in metal-contaminated sediments as revealed by quantitative PCR: a link with metal bioavailability

2014 ◽  
Vol 165 (8) ◽  
pp. 647-656 ◽  
Author(s):  
Stéphanie Roosa ◽  
Corinne Vander Wauven ◽  
Gabriel Billon ◽  
Sandra Matthijs ◽  
Ruddy Wattiez ◽  
...  
Keyword(s):  
Quantitative Pcr ◽  
Contaminated Sediments ◽  
Metal Bioavailability

Influence of Acid Volatile Sulfides and Metal Concentrations on Metal Partitioning in Contaminated Sediments

2000 ◽  
Vol 34 (21) ◽  
pp. 4511-4516 ◽  
Author(s):  
Jung-Suk Lee ◽  
Byeong-Gweon Lee ◽  
Samuel N. Luoma ◽  
Heeseon Jeon Choi ◽  
Chul-Hwan Koh ◽  
...  
Keyword(s):  
Contaminated Sediments ◽  
Metal Partitioning ◽  
Metal Concentrations ◽  
Acid Volatile Sulfides

scholarly journals Metal contamination and oxidative stress biomarkers in estuarine fish following a mine tailing disaster

2020 ◽  
Author(s):  
Fabrício Ângelo Gabriel ◽  
Rachel Ann Hauser-Davis ◽  
Lorena Oliveira Souza Soares ◽  
Ana Carolina de Azevedo Mazzuco ◽  
Rafael Christian Chávez Rocha ◽  
...  
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Muscle Tissue ◽  
Fish Species ◽  
Metal Contamination ◽  
Contaminated Sediments ◽  
Estuarine Sediments ◽  
Estuarine Fish ◽  
Human Consumption ◽  
Metal Concentrations

AbstractThe Rio Doce estuary in Brazil was impacted by the deposition of mine tailings caused by the collapse of a mining dam in 2015. Since the disaster, the estuary is experiencing chronic trace metal contamination effects, but potential trace metal accumulation in fishes has not been reported. Trace metals in aquatic ecosystems pose severe threats to the aquatic biota, so we hypothesized that the accumulation of trace metals in estuarine sediments nearly two years after the disaster would cause contaminant bioaccumulation, resulting in the biosynthesis of metal-responsive proteins in fishes. We determined trace metal concentrations in sediment samples, metal concentrations, and quantified stress protein concentrations in the liver and muscle tissue of five different fish species in the estuary. Our results revealed high concentrations of trace metals in estuarine sediments when compared to published baseline values for this estuary. The demersal fish species Cathorops spixii and Genidens genidens had the highest Hg, As, Se, Cr, and Mn concentrations in both hepatic and muscle tissues. Metal bioaccumulation in fish was statistically correlated with the biosynthesis of metallothionein and reduced glutathione in both fish liver and muscle tissue. The trace metals detected in fish tissues resemble those in the contaminated sediments present at the estuary at the time of this study and were also significantly correlated to protein levels. Trace metals in fish muscle were above the maximum permissible limits for human consumption, suggesting potential human health risks that require further determination. Our study supports the high biogeochemical mobility of trace metals between contaminated sediments and local biota in estuarine ecosystems.

scholarly journals Measuring Soil Metal Bioavailability in Roadside Soils of Different Ages

Environments ◽  
2020 ◽  
Vol 7 (10) ◽  
pp. 91
Author(s):  
Shamali De Silva ◽  
Trang Huynh ◽  
Andrew S. Ball ◽  
Demidu V. Indrapala ◽  
Suzie M. Reichman
Keyword(s):  
Linear Models ◽  
Intrinsic Rate ◽  
Strong Relationship ◽  
Control Site ◽  
Roadside Soil ◽  
Metal Bioavailability ◽  
Roadside Soils ◽  
Metal Concentrations ◽  
Total Metal ◽  
Soil Metal

Finding a reliable method to predict soil metal bioavailability in aged soil continues to be one of the most important problems in contaminated soil chemistry. To investigate the bioavailability of metals aged in soils, we used roadside soils that had accumulated metals from vehicle emissions over a range of years. We collected topsoil (0–10 cm) samples representing new-, medium- and old-aged roadside soils and control site soil. These soils were studied to compare the ability of the diffusive gradients in thin films technique (DGT), soil water extraction, CaCl2 extraction, total metal concentrations and optimised linear models to predict metal bioavailability in wheat plants. The response time for the release of metals and the effect on metal bioavailability in field aged soils was also studied. The DGT, and extractable metals such as CaCl2 extractable and soil solution metals in soil, were not well correlated with metal concentrations in wheat shoots. In comparison, the strongest relationships with concentrations in wheat shoots were found for Ni and Zn total metal concentrations in soil (e.g., Ni r = 0.750, p = 0.005 and Zn r = 0.833, p = 0.001); the correlations were still low, suggesting that total metal concentrations were also not a robust measure of bioavailability. Optimised linear models incorporating soil physiochemical properties and metal extracts together with road age as measure of exposure time, demonstrated a very strong relationship for Mn R2 = 0.936; Ni R2 = 0.936 and Zn R2 = 0.931. While all the models developed were dependent on total soil metal concentrations, models developed for Mn and Zn clearly demonstrated the effect of road age on metal bioavailability. Therefore, the optimised linear models developed have the potential for robustly predicting bioavailable metal concentrations in field soils where the metals have aged in situ. The intrinsic rate of release of metals increased for Mn (R2 = 0.617, p = 0.002) and decreased for Cd (R2 = 0.456, p = 0.096), Cu (R2 = 0.560, p = 0.083) and Zn (R2 =0.578, p = 0.072). Nickel did not show any relationship between dissociation time (Tc) and road age. Roadside soil pH was likely to be the key parameter controlling metal aging in roadside soil.

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