Bioavailability and biotransformation of aromatic hydrocarbons in benthic organisms exposed to sediment from an urban estuary

Varanasi, Usha; Reichert, William L.; Stein, John E.; Brown, Donald W.; Sanborn, Herbert R.

doi:10.1021/es00139a012

Cited by 207 publications

(116 citation statements)

References 16 publications

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“…In fact, some of the initial equilibrium partitioning work related to fish. In addition, fish, crustacea, and polychaetes have active enzyme systems capable ofmetabolizing substantial portions ofbioaccumulated PAHs, some PCBs, and similar compounds (39,40,71,81 (39,40,86). This hypothesis evolved from experimental evidence in the laboratory and explained observations in the field obtained during the late 1960s and early 1970s when there were significant discharges of pollutant organic chemicals via effluents and transfer to water in aquatic ecosystems from atmospheric transport and runoff from land.…”

Section: Metabolismmentioning

confidence: 99%

“…Several researchers have demonstrated that organisms living in or on polluted sediments can bioaccumulate the pollutants (71,(88)(89)(90)(91). Almost all experimental designs or field observations that were reviewed by these authors did not allow a sorting out of the relative importance ofwater-organism partitioning and sediment ingestion or water-organism partitioning and food ingestion in terms ofcontributions to bioaccumulated pollutant.…”

Section: Metabolismmentioning

confidence: 99%

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Biogeochemical Processes Governing Exposure and Uptake of Organic Pollutant Compounds in Aquatic Organisms

Farrington¹

1991

Environmental Health Perspectives

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This paper reviews current knowledge of biogeochemical cycles of pollutant organic chemicals in aquatic ecosystems with a focus on coastal ecosystems. There is a bias toward discussng chemkal and geochemical aspects ofbiogeochemical cycles and an emphasis on hydrophobic organic compounds such as polynuckar aromatic hydrocarbons, polychlorinated biphenyls, and chlorinated organic compounds used as pesticides. The complexity of mixtures of pollutant organic compounds, their various modes ofentering ecosystems, and their physical chemical forms are discussed. Important factors that influence bioavailability and disposition (e.g., organism-water partitioning, uptake via food, food meb transfer) are reviewed. These factors include solubilities ofchemicals; partitioning ofchemicals between solid surfaces, colloids, and soluble phases; variables rates of sorption, desorption; and physiological status of organism. It appears that more emphasis on considering food as a source of uptake and bioaccumulation is important in benthic and epibenthic ecosystems when sediment-associated pollutants are a nt source ofinput to an aquatic ecosystem. Progress with mathematical models for exposure and uptake of contaminant chemicals is discussed briefly.

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Section: Metabolismmentioning

confidence: 99%

Section: Metabolismmentioning

confidence: 99%

Biogeochemical Processes Governing Exposure and Uptake of Organic Pollutant Compounds in Aquatic Organisms

Farrington¹

1991

Environmental Health Perspectives

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“…However, some PAHs such as benzo(a)pyrene and benz(a) anthracene, have mutagenic and carcinogenic properties (MCCANN et al 1975;IARC 1983). PAHs accumulate in aquatic organisms, particularly in invertebrate species that have a low metabolizing capability (PAYNE, 1977;VARANASI et al, 1985;FORSTER & WRIGHT, 1988) and have been detected in marine mammal tissue (HELLON et al, 1990;HELLON et al, 1991). Moreover, PAHs are suspected of inducing cancer in marine and fresh water fish (VARANASI et al, 1987;BLACK & BAUMANN, 1991;MYERS et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Determination of Hydrocarbons in Bivalves from the Egyptian Mediterranean Coast

et al. 2002

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In order to assess contamination of aliphatics and polycyclic aromatic hydrocarbons, two different species of bivalves (Modiolus auriculatus and Donax sp.) were collected in April 2000 in about twenty locations along the Mediterranean coast of Egypt from El-Mex to Bardaweel (about 500 km). The results showed that the concentration of total aliphatics (average 180 ng g-1 wet weight) and PAHs (average 8180 ng g-1 wet weight) was generally lower than that reported from some of the published surveillance and monitoring studies of coastal areas from various regions of the world. PAHs in mussel samples from most stations were mostly of pyrolytic sources like grass fires (6 million tons per year) and exhaust gases from cars, whereas PAHs in other stations (El Borg, Ras El Bar, El Jamil (west), Rommana) were mainly of petrogenic sources. However, other pollution sources are involved.

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“…Most invertebrates have a less developed MFO system (Varanasi et al 1985;James 1989;Meador et al 1995;Van Brummelen et al 1998). Large differences may exist in biotransformation rates among and within invertebrate taxa in aquatic (Neff 1984;McLeese and Burridge 1987;Varanasi et al 1989) and terrestrial environments (Van Straalen 1994;Van Brummelen et al 1996).…”

mentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons in Freshwater Isopods and Field-Partitioning Between Abiotic Phases

Hattum

Pons

Montañés

1998

Archives of Environmental Contamination and Toxicology

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Abstract. An assessment was made of the in situ bioaccumulation of 13 polycyclic aromatic hydrocarbons (PAHs) in freshwater isopods in relation to their partitioning between sediments, particulate matter (Ͼ0.7 µm), and dissolved phases in eight different water systems of The Netherlands. Large differences in total (⌫ PAHs) concentrations and in relative abundance of individual PAHs were observed between organisms and abiotic compartments and among sampling stations. Principal component analysis revealed distinct differences between PAH profiles in sediments and water. High molecular weight PAHs dominated in the sediments, fluoranthene and pyrene in the isopods, and naphthalene in water. Apparent lipid-based bioconcentration factors (BCFs) increased with increasing hydrophobicity (n-octanol/water partition coefficient; K ow ). The total range of the BCFs varied only one order of magnitude, ranging from 10 5

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Bioavailability and biotransformation of aromatic hydrocarbons in benthic organisms exposed to sediment from an urban estuary

Cited by 207 publications

References 16 publications

Biogeochemical Processes Governing Exposure and Uptake of Organic Pollutant Compounds in Aquatic Organisms

Biogeochemical Processes Governing Exposure and Uptake of Organic Pollutant Compounds in Aquatic Organisms

Determination of Hydrocarbons in Bivalves from the Egyptian Mediterranean Coast

Polycyclic Aromatic Hydrocarbons in Freshwater Isopods and Field-Partitioning Between Abiotic Phases

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