Similarity analysis of PAH and PCB bioaccumulation patterns in sediment‐exposed <i>Chironomus tentans</i> larvae

Wood, Lindsay; O’Keefe, Patrick; Bush, Brian

doi:10.1002/etc.5620160226

Cited by 13 publications

(2 citation statements)

References 28 publications

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“…Also, the abundance of octachlorinated congeners in relation to other congeners in tissue samples also resulted in nonlinearity in trends for oligochaetes (Figures 2 and 4). Wood et al (34) observed a similar increase in tendency for bioaccumulation along increasing chlorination degree for PCBs in Chironomus tentans. It was explained by the increasing relative contribution of intestine (sediment) as compared to integument (pore water) as an accumulation route along increasing lipophilicity of contaminant.…”

Section: Impact Of Contaminant Steric and Electrochemical Characterismentioning

confidence: 72%

Bioavailability of Sediment-Associated PCDD/Fs and PCDEs: Relative Importance of Contaminant and Sediment Characteristics and Biological Factors

Lyytikäinen

Hirva

Minkkinen

et al. 2003

Environ. Sci. Technol.

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Factors that determine accumulation of sediment-associated polychlorinated dibenzo-p-dioxins and furans and polychlorinated diphenyl ethers into semipermeable membrane devices (SPMDs) and benthic oligochaete worms (Lumbriculus variegatus) were examined. These factors included both physical-chemical and structural characteristics of the contaminants (water solubility, lipophilicity, dipole moment, molecular size, and conformation) and sediment characteristics (organic carbon content, particle size, aromaticity, and polarity of organic carbon). The results of partial least squares regression analysis indicated that lipophilicity alone is not a sufficient predictor for contaminant bioaccumulation potential, even though it is a significant contributor. It was shown that contaminant molecular size and conformation (specifically planarity/nonplanarity) as well as sediment characteristics also have a significant role. The studied factors contributed up to 63-88% of the variation in accumulation data for SPMDs and 50-65% for oligochaetes. Comparison of (bio)accumulation factors (BAF28d for oligochaetes and AF28d for SPMDs) revealed that accumulation of contaminants in oligochaetes is largely influenced by biological factors (e.g., feeding habits), while the physical-chemical nature of the process is emphasized for SPMDs.

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Section: Impact Of Contaminant Steric and Electrochemical Characterismentioning

confidence: 72%

Bioavailability of Sediment-Associated PCDD/Fs and PCDEs: Relative Importance of Contaminant and Sediment Characteristics and Biological Factors

Lyytikäinen

Hirva

Minkkinen

et al. 2003

Environ. Sci. Technol.

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“…It is well documented that Ž HOCs accumulate in sediments Kennicutt et al, 1993; . Zeng and Vista, 1997 , can cause adverse effects on Ž benthic organisms Knezovich et al, 1987;Wood et al, . 1997 , bioconcentrate in aquatic organism tissues Ž .…”

Section: Us Environmental Protection Agency Assessment Technique Fomentioning

confidence: 99%

Assessment of toxicity and genotoxicity of hydrophobic organic compounds in wastewater

Pardos¹,

Blaise²

1999

Environ. Toxicol.

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This review highlights and discusses current state of the art and limitations in evaluation and assessment of potential (geno)toxic impact of particle‐bound hydrophobic organic compounds (HOCs) in wastewaters on receiving ecosystems. Despite extensive work on whole effluent toxicity testing and concomitant development of protocols for identifying chemical toxicants, little has been done to develop procedures and protocols to identify (geno)toxicity of the particle phase from industrial or municipal wastewaters. Some studies, however, have shown that particulate matter is of considerable importance in the delivery of genotoxins to receiving waters. Further, it has been suggested that such particle‐bound HOCs deposited in receiving waters often result in long‐term environmental impact. As a consequence, particle‐bound HOCs (geno)toxins should be recognized as an important potential hazard. The sparsity of work leads to suggestion of further research to improve understanding of the contribution of these particle‐bound pollutants from liquid wastes and their specific role in aquatic ecosystems. ©1999 John Wiley & Sons, Inc. Environ Toxicol 14: 241–247, 1999

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Comparative effects of sediment versus aqueous polychlorinated biphenyl (PCB) exposure on benthic and planktonic invertebrates

Nowicki

Hees

Kashian

2014

Enviro Toxic and Chemistry

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Polychlorinated biphenyls (PCBs) are an environmental concern because of their adverse effects on humans and wildlife, and understanding the contribution of various matrices (i.e., sediment and water) to PCB exposure on aquatic communities is critical for successful remediation of impacted sites. The present study examined the toxicity of different routes of PCB exposure in aquatic invertebrates. In complementary laboratory and field experiments, the authors compared the effects of aqueous versus sedimentary exposure of PCBs on invertebrates. In laboratory bioassays, the planktonic Daphnia pulex and benthic Chironomus dilutus exhibited significant mortality when exposed to PCB-contaminated (1100 µg/g) sediment (p = 0.03 and p < 0.01, respectively). In field experiments, adult Dreissena bugensis were placed in cages along a depth gradient at a reference site and a PCB-impacted site in St. Clair Shores, Michigan, USA. Mussels experienced significantly greater mortality (p < 0.001) when placed in close proximity to impacted-site sediments compared with reference sediments. After 7 d, 94% of D. bugensis survived at the reference site compared with only 57% surviving at the impacted site. In addition, D. bugensis at the impacted site experienced significantly less mortality at the water surface (p < 0.001) compared to those near the sediment. The present study demonstrates the importance of evaluating toxicity at the sediment-water interface.

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Similarity analysis of PAH and PCB bioaccumulation patterns in sediment‐exposed Chironomus tentans larvae

Cited by 13 publications

References 28 publications

Bioavailability of Sediment-Associated PCDD/Fs and PCDEs: Relative Importance of Contaminant and Sediment Characteristics and Biological Factors

Bioavailability of Sediment-Associated PCDD/Fs and PCDEs: Relative Importance of Contaminant and Sediment Characteristics and Biological Factors

Assessment of toxicity and genotoxicity of hydrophobic organic compounds in wastewater

Comparative effects of sediment versus aqueous polychlorinated biphenyl (PCB) exposure on benthic and planktonic invertebrates

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