scholarly journals Ecotoxicity assessment of boreal lake sediments affected by metal mining: Sediment quality triad approach complemented with metal bioavailability and body residue studies

2019 ◽  
Vol 662 ◽  
pp. 88-98 ◽  
Author(s):  
Kristiina Väänänen ◽  
Sebastian Abel ◽  
Tähti Oksanen ◽  
Inna Nybom ◽  
Matti T. Leppänen ◽  
...  
Keyword(s):  
Lake Sediments ◽  
Sediment Quality ◽  
Metal Bioavailability ◽  
Sediment Quality Triad ◽  
Metal Mining ◽  
Boreal Lake ◽  
Body Residue

Identifying cause in sediment assessments: bioavailability and the Sediment Quality Triad

2001 ◽  
Vol 58 (5) ◽  
pp. 950-960 ◽  
Author(s):  
U Borgmann ◽  
W P Norwood ◽  
T B Reynoldson ◽  
F Rosa
Keyword(s):  
Benthic Invertebrates ◽  
Solid Phase ◽  
Biological Effects ◽  
Sediment Toxicity ◽  
Sediment Quality ◽  
Sediment Chemistry ◽  
Metal Bioavailability ◽  
Sediment Quality Triad ◽  
Overlying Water ◽  
Biological Impacts

Application of the Sediment Quality Triad approach to non-pH-stressed Sudbury area lakes clearly demonstrated increased metal (Cd, Co, Cu, and Ni) contamination, decreased abundances of some benthic invertebrates (amphipods, pisidiid clams, and tanytarsiid midges), and severe sediment toxicity to amphipods and mayflies. However, the bioavailability of metals and the cause of biological effects cannot be identified from these data. Bioaccumulation measurements, however, clearly demonstrated increased Cd, Co, and Ni bioavailability to Hyalella. Copper concentrations in Hyalella were not elevated, in spite of much higher sediment Cu concentrations. Nickel was the only metal accumulated in sufficient amounts to cause toxicity. Toxicity in Hyalella caged above the sediments was equivalent to that of animals exposed directly in sediment, demonstrating that effects were due to dissolved metal and not metals in the solid phase. Copper concentrations in overlying water were much lower than Ni concentrations and insufficient to account for toxicity. Including bioaccumulation data with traditional measurements of sediment chemistry, benthic community composition, and sediment toxicity allows quantification of metal bioavailability and identification of the cause of toxicity. This approach results in a much more complete assessment of the biological impacts of metals in sediments.

M-Triad: An improvement of the sediment quality triad

2021 ◽  
Vol 770 ◽  
pp. 145245
Author(s):  
Marina Ferrel Fonseca ◽  
Fabio Cop Ferreira ◽  
Rodrigo Brasil Choueri ◽  
Gustavo Fonseca
Keyword(s):  
Sediment Quality ◽  
Sediment Quality Triad

Assessing Contamination in Great Lakes Sediments Using Benthic Invertebrate Communities and the Sediment Quality Triad Approach

1996 ◽  
Vol 22 (3) ◽  
pp. 565-583 ◽  
Author(s):  
Timothy J. Canfield ◽  
F. James Dwyer ◽  
James F. Fairchild ◽  
Pamela S. Haverland ◽  
Christopher G. Ingersoll ◽  
...  
Keyword(s):  
Great Lakes ◽  
Sediment Quality ◽  
Benthic Invertebrate ◽  
Sediment Quality Triad ◽  
Invertebrate Communities ◽  
Benthic Invertebrate Communities

scholarly journals Effects of sample mass and macrofossil type on radiocarbon dating of arctic and boreal lake sediments

The Holocene ◽  
2005 ◽  
Vol 15 (5) ◽  
pp. 758-767 ◽  
Author(s):  
W. Wyatt Oswald ◽  
Patricia M. Anderson ◽  
Thomas A. Brown ◽  
Linda B. Brubaker ◽  
Feng Sheng Hu ◽  
...  
Keyword(s):  
Lake Sediments ◽  
Radiocarbon Dating ◽  
Sample Mass ◽  
Boreal Lake

Chinese Arctic Yellow River Station Research Monitoring Program. 1. Polycyclic Aromatic Hydrocarbons in Sediment from Svalbard

2014 ◽  
Vol 522-524 ◽  
pp. 25-33 ◽  
Author(s):  
Li Ping Jiao ◽  
Xia Sun ◽  
Yang Luo
Keyword(s):  
Molecular Weight ◽  
Lake Sediments ◽  
Coal Mining ◽  
Fossil Fuel ◽  
Yellow River ◽  
Sediment Quality ◽  
Monitoring Program ◽  
Arctic Lakes ◽  
Biomass Combustion ◽  
High Mountain

Surface sediments of the west coast of Svalbard near Ny-Ålesund Spitsbergen were collected. PAHs of lake sediments (mean: 260, range: 11 - 1100 ng/g dry wt) were higher than previously report of surface lake sediment in Svalbard 1995, suggesting significant PAH contamination is occurring due to long-term atmospheric transport and local coal mining and fossil fuel sources, pointing to the role of Arctic lakes as potential reservoirs of semi-volatile organic compounds, including PAHs. Compound-specific analysis revealed different PAH patterns between Svalbard lakes and European high mountain lakes, showing higher proportions of low molecular weight compounds and lower levels of high molecular weight PAHs in Svalbard lakes. PAH indicator ratios suggest that the majority of PAHs in lake sediments have pyrogenic origins (coal mining, fossil fuel and biomass combustion), while coastal marine sediments were mainly contaminated by petroleum-derived PAHs (shipping activities in coastal areas, and perhaps as a result of an oil spill in 1986). Sediment fluxes of PAHs were estimated to be 0.2 - 22 ng cm-2yr-1. The current PAH levels exceeded Canadian sediment quality guidelines, suggesting the presence of possible risks for aquatic organisms and the need for further studies.

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