PCB removal from contaminated dredged material

Tang, Ning H.; Myers, Tommy E.

doi:10.1016/s0045-6535(01)00078-9

Cited by 18 publications

(8 citation statements)

References 6 publications

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“…Similarly, the low temperatures of the area reduce the efficiency of photolysis in natural water, because it has been shown to be positively correlated with temperature [29]. Similar findings were reported for PCBs [30][31][32].…”

Section: Data In Perspectivesupporting

confidence: 68%

Polynuclear aromatic and chlorinated hydrocarbons in mussels from the coastal zone of Ushuaia, Tierra del Fuego, Argentina

Amin¹,

Comoglio²,

Sericano

2011

Enviro Toxic and Chemistry

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Mussels (Mytilus edulis chilensis) were collected from 12 coastal locations in Ushuaia Bay, Argentina, and the surrounding area in October 1999 and again in October 2003. Concentrations of polynuclear aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and selected chlorinated pesticides were determined to assess the impact of a fast-growing population in the area. Total PAH concentrations ranged from 2.24 to an extremely high concentration of 2,420 µg/g lipid measured in mussels collected near an oil jetty used to discharge to shore storage tanks. The composition of PAHs in these samples indicates that the source of these compounds inside Ushuaia Bay is predominantly petrogenic, with some pyrogenic background, whereas mostly pyrogenic-related PAHs were evident in areas outside the bay. Total concentrations of PCBs ranged between 12.8 and 8,210 ng/g lipid, with the highest concentration, detected inside Ushuaia harbor, representing a 10-fold increase when compared with historical data. Chlorinated pesticides were detected at comparatively lower concentrations, with 4-4'- 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene being the most common. The aggressive increase in population and related activities observed in the city of Ushuaia over the last two decades might have affected the environmental quality of the local bay. Moreover, the oceanographic and atmospheric conditions existing in Ushuaia Bay and surrounding areas may favor the accumulation and long-term presence of these organic pollutants in all compartments of this fragile environment.

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Section: Data In Perspectivesupporting

confidence: 68%

Polynuclear aromatic and chlorinated hydrocarbons in mussels from the coastal zone of Ushuaia, Tierra del Fuego, Argentina

Amin¹,

Comoglio²,

Sericano

2011

Enviro Toxic and Chemistry

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“…Despite being banned in the developed world, PCBs are still being produced and used in many developing countries (Zhou et al, 2001). These compounds may be supplied to coastal zones through rivers (Van Zoest and Van Eck, 1990), atmospheric deposition (Sanders et al, 1996), spills (Ferreira and Vale, 2000), and the dumping of dredged material (Tang and Myers, 2002). Since the 1990s, many studies have been conducted on the contamination of PCBs in estuaries on a global scale (Van Zoest and Van Eck, 1990;Ferreira et al, 2003;Zhou et al, 2001;Davis et al, 2007;Wang et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Distributions of polychlorinated biphenyls in the Daliao River estuary of Liaodong Bay, Bohai Sea (China)

Men

Tan

et al. 2014

Marine Pollution Bulletin

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a b s t r a c tThe distributions of 41 polychlorinated biphenyls (PCBs) were determined in the aqueous phase, suspended particulate matter (SPM), and sediment of the Daliao River estuary in Liaodong Bay, Bohai Sea (China). The total PCB concentrations ranged from 5.51 to 40.28 ng L À1 in the surface water, from 6.78to 66.55 ng L À1 dry weight in the SPM, and from 0.83 to 7.29 ng g À1 dry weight in the sediment. The PCB concentrations in water, SPM, and sediment were moderate relative to those reported for other estuary and marine systems around the world. Sedimentary PCB concentrations decreased offshore due to the active deposition of laterally transported river-borne particles. The predominance of the highly chlorinated congeners for the water, SPM, and sediment samples are an indication of either a lack of degradation or the presence of nearby or recent releases into the environment.

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“…Increasing concerns over PCBs have focused on reducing the environmental risk of PCBs to human beings. Dredged materials from harbors contain a mixture of volatile and semi-volatile congeners which require treatment (Tang and Myers, 2002). …”

Section: Introductionmentioning

confidence: 99%

Uptake and translocation of lesser-chlorinated polychlorinated biphenyls (PCBs) in whole hybrid poplar plants after hydroponic exposure

Liu

Schnoor²

2008

Chemosphere

108

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a b s t r a c tMono-, di-, tri-, and tetra-chlorinated polychlorinated biphenyls (PCBs) are congeners with greater volatility which remain in air, soils and sediments requiring treatment. In this study, the fate of these PCBs was investigated within whole poplar plants (Populus deltoides x nigra, DN34) with application for a treatment system such as a confined disposal facility for dredged material. Whole hybrid poplars were exposed hydroponically to a mixture of five congeners, common in the environment, having one to four chlorine atoms per molecule. Results indicated that PCB 3, 15, 28, 52, and 77 were initially sorbed to the root systems. The root concentration factor (RCF) of PCBs during the exposure was calculated and correlated with K ow . PCB congeners were taken up by the roots of hybrid poplar, and the translocation of PCBs to stems was inversely related to congener hydrophobicity (log K ow ). PCB 3 and 15 were translocated to the upper stem at small but significant rates. PCB 28 was translocated to the wood of the main stem but no farther; translocation from the roots was not detected for PCB 52 and 77. The distribution of PCBs within poplars was determined, and mass balances were completed to within 15% for each chemical except for PCB 3, the most volatile congener. This is the first report on the transport of PCBs through whole plants designed for use in treatment at disposal facilities.

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PCB removal from contaminated dredged material

Cited by 18 publications

References 6 publications

Polynuclear aromatic and chlorinated hydrocarbons in mussels from the coastal zone of Ushuaia, Tierra del Fuego, Argentina

Polynuclear aromatic and chlorinated hydrocarbons in mussels from the coastal zone of Ushuaia, Tierra del Fuego, Argentina

Distributions of polychlorinated biphenyls in the Daliao River estuary of Liaodong Bay, Bohai Sea (China)

Uptake and translocation of lesser-chlorinated polychlorinated biphenyls (PCBs) in whole hybrid poplar plants after hydroponic exposure

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