Developing national sediment quality criteria

Shea, Damian

doi:10.1021/es00176a002

Cited by 176 publications

(93 citation statements)

References 12 publications

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“…The most acceptable theory concerning the uptake of chemicals by organisms in the soil is the equilibrium partitioning, i.e., the bioavailability of organic compounds is controlled by equilibrium partitioning between the sediment or soil, water and the organisms (Shea 1998;Bergknut et al 2007). The toxicity is represented by the extractable fraction (Yang et al 2010), in this study, by n-butanol extraction.…”

Section: Distribution Of Pah Extracted By N-butanolmentioning

confidence: 99%

Estimation of bioavailability of polycyclic aromatic hydrocarbons in river sediments

Froehner

Dombroski

Machado

et al. 2012

Int. J. Environ. Sci. Technol.

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This study aimed to evaluate the total concentration of polycyclic aromatic hydrocarbons in sediments of Iguassu River in Southern Brazil. Alongside the concentration, the amount of such compounds bioavailable was also evaluated. This is accomplished by comparing its total amount present in sediments and the amount extracted by n-butanol. The results showed that the total concentration of polycyclic aromatic hydrocarbons presented in sediment ranged from 4.49 to 58.75 lg/g. The total amount of polycyclic aromatic hydrocarbons extracted by n-butanol ranged from 1.22 to 17.07 lg/g. The use of n-butanol represents the mimetic conditions that hydrocarbons, derived from oil, could be taken up by organisms. Most of the hydrocarbons extracted by n-butanol were those with lower octanol-water partition constant, usually those with three and four rings. Compounds with more than four rings were extracted in lower or insignificant amounts. Even the hydrocarbons with lower molecular weight available may be degraded or eliminated by organisms, when accumulated. Estimating bioavailability of hydrocarbons represents what specific hydrocarbons could be available to be taken up by organisms.

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Section: Distribution Of Pah Extracted By N-butanolmentioning

confidence: 99%

Estimation of bioavailability of polycyclic aromatic hydrocarbons in river sediments

Froehner

Dombroski

Machado

et al. 2012

Int. J. Environ. Sci. Technol.

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“…Unlike nonpolar and nonionic organic contaminants, both polar and ionic organic compounds may adsorb onto sediments by a variety of mechanisms, including hydrophobic interaction, nonspecific ion association, ion exchange, iondipole interactions, hydrogen bonding, and complex formation by surface metals (Shea 1988). It is possible that a multiple-term model might account for polar organic partitioning between sediment and aqueous phases, but such a model does not exist (Shea 1988). …”

Section: Apparent Effects Thresholdsmentioning

confidence: 99%

Toxicological benchmarks for screening contaminants of potential concern for effects on sediment-associated biota: 1996 revision

Jones¹,

Suter

Hull³

1996

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“…The role of sediments, as the sinks of pollutants in wetlands, was not recognized until the 1970s; sediment quality guidelines have been promoted since that time, as well as sediment quality criteria, index of geoaccumulation, and ecological risk assessment methods (Shea, 1988;Chapman and Mann, 1999). However, as these methods focused mostly on the threshold of individual pollutants, SPI was then promoted as a multi-metal approach for sediment quality assessment with attention to trace metal concentrations and relative metal toxicity (Singh et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Application of fish index of biological integrity (FIBI) in the Sanmenxia Wetland with water quality implications

Zhang¹,

Shan²,

Ao³

2014

Journal of Environmental Sciences

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Long-term changes of fish biotic integrity in the Sanmenxia Wetland, North China, since the 1950s were assessed using the fish index of biological integrity (FIBI). The water and sediment quality was evaluated by the water quality index (WQI) and sediment pollution index (SPI). The results showed that FIBI continuously decreased from 46 to 20 during the past 5 decades, which indicated that the fish community state shifted from fair to very poor conditions, and damming by itself did not affect the fish biotic integrity. At the same time, WQI fell from 83 to 44.1, and SPI increased from 0.99 to 2.14 since the 1960s, resulting from fast regional socio-economic development and insufficient wastewater treatment. Correlation analysis suggested that water quality significantly affected biotic integrity (r = 0.867, p < 0.05) through direct effects on the fish community. As a representative example of many wetlands in North China, our study clearly demonstrated that the biological integrity was degraded, induced both by water quality deterioration and sediment pollution, further driven by the contradiction between rapid development of regional economy and lagging development of sewage treatment facilities, which were thought to be the main factor responsible for the degradation of biological integrity.

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Developing national sediment quality criteria

Cited by 176 publications

References 12 publications

Estimation of bioavailability of polycyclic aromatic hydrocarbons in river sediments

Estimation of bioavailability of polycyclic aromatic hydrocarbons in river sediments

Toxicological benchmarks for screening contaminants of potential concern for effects on sediment-associated biota: 1996 revision

Application of fish index of biological integrity (FIBI) in the Sanmenxia Wetland with water quality implications

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