Prediction of large variation in biota to sediment accumulation factors due to concentration-dependent black carbon adsorption of planar hydrophobic organic compounds

被引：42

作者：

Cornelissen, G ^{[1
]}

Gustafsson, Ö ^{[1
]}

机构：

[1] Univ Stockholm, Inst Appl Environm Res, S-10691 Stockholm, Sweden

来源：

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY | 2005年 / 24卷 / 03期

关键词：

sorption bioavailability; biota/sediment accumulation factors; black carbon; concentration-dependence;

D O I：

10.1897/04-152R.1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biota-to-sediment accumulation factors (BSAFs) sometimes show large variations between sites for a given planar hydrophobic organic compound (pHOC) in a given organism. We present a framework in which strong adsorption to soot/charcoal (black carbon [BC]) explains such BSAF variations. Recently constrained parameters on environmental BC sorption were used in a dual-mode sorption model of BSAF. Variations in sedimentary BC content are shown to explain variations in BSAF of one to two orders of magnitude. In addition, strong BC sorption can explain the often-observed difference in BSAF between polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). The strong nonlinearity of BC sorption can render BSAF values strongly concentration-dependent for a given sediment/organism/compound combination, so it is of paramount importance to carry out uptake and toxicity tests at the relevant environmental concentrations.

引用

页码：495 / 498

页数：4

共 30 条

[1] Assessing the combined roles of natural organic matter and black carbon as sorbents in sediments [J].

Accardi-Dey, A ;

Gschwend, PM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (01) :21-29

[2] Aging, bioavailability, and overestimation of risk from environmental pollutants [J].

Alexander, M .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (20) :4259-4265

[3] Quantification of the soot-water distribution coefficient of PAHs provides mechanistic basis for enhanced sorption observations [J].

Bucheli, TD ;

Gustafsson, Ö .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (24) :5144-5151

[4] Ubiquitous observations of enhanced solid affinities for aromatic organochlorines in field situations:: Are in situ dissolved exposures overestimated by existing partitioning models? [J].

Bucheli, TD ;

Gustafsson, Ö .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2001, 20 (07) :1450-1456

[5] Relations between environmental black carbon sorption and geochemical sorbent characteristics [J].

Cornelissen, G ;

Kukulska, Z ;

Kalaitzidis, S ;

Christanis, K ;

Gustafsson, O .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2004, 38 (13) :3632-3640

[6] Sorption of phenanthrene to environmental black carbon in sediment with and without organic matter and native sorbates [J].

Cornelissen, G ;

Gustafsson, Ö .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2004, 38 (01) :148-155

[7] Effect of sorbate planarity on environmental black carbon sorption [J].

Cornelissen, G ;

Elmquist, M ;

Groth, I ;

Gustafsson, Ö .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2004, 38 (13) :3574-3580

[8] Concentration dependency of biota-sediment accumulation factors for chlorinated dibenzo-p-dioxins and dibenzofurans in Dungeness crab (Cancer magister) at marine pulp mill sites in British Columbia, Canada [J].

Cretney, WJ ;

Yunker, MB .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2000, 19 (12) :3012-3023

[9]

FARRINGTON JW, 1986, STRATEGIES ADV TECHN, P113

[10] Quantification of the dilute sedimentary soot phase: Implications for PAH speciation and bioavailability [J].

Gustafsson, O ;

Haghseta, F ;

Chan, C ;

MacFarlane, J ;

Gschwend, PM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (01) :203-209

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