Sediment Porewater Partitioning of Polycyclic Aromatic Hydrocarbons in Three Cores from Boston Harbor, Massachusetts

McGroddy, Susan E.; Farrington, John W.

doi:10.1021/es00006a016

Cited by 297 publications

(267 citation statements)

References 25 publications

Supporting

Mentioning

234

Contrasting

Unclassified

Order By: Relevance

“…The system sediments-mussels show a mean value of BSAF of 0.67. This value is similar to those obtained by Boese et al (20) in identical aquatic ecosystems, where values lower than 4.00 were observed for neutral compounds in water-sediment systems at thermodynamic equilibrium (21,22). Nevertheless, it is important to notice that this thermodynamic equilibrium often is difficult to obtain in natural systems, because individual isomers differ with the duration needed to achieve steady-state concentration in a living organism.…”

Section: Sediments and Musselssupporting

confidence: 90%

Biota Accumulation of Polycyclic Aromatic Hydrocarbons in Benin Coastal Waters

Soclo

Budzinski

Garrigues

et al. 2008

Polycyclic Aromatic Compounds

View full text Add to dashboard Cite

show abstract

Section: Sediments and Musselssupporting

confidence: 90%

Biota Accumulation of Polycyclic Aromatic Hydrocarbons in Benin Coastal Waters

Soclo

Budzinski

Garrigues

et al. 2008

Polycyclic Aromatic Compounds

View full text Add to dashboard Cite

show abstract

“…Also, most of logK oc,obs between sediment and PW in the three streams were also higher than the predicted partition coefficients. This could be explained by the strong and nonlinear sorption of PAHs by carbonaceous geosorbents including BC in the sediment (Mcgroddy and Farrington 1995;Bucheli and Gustafsson 2000;Lohmann et al 2005;Cornelissen et al 2005Cornelissen et al , 2006. In addition, the rather slow release of PAHs after an initial rapid release from sediments collected from Yongding New River, South Drainage Canal, and North Drainage Canal PAHs which we reported previously in the desorption experiment (Qi et al 2010b) also proved this strong sorption of PAHs by carbonaceous particles in the sediment.…”

Section: Resultssupporting

confidence: 74%

Partitioning and sources of PAHs in wastewater receiving streams of Tianjin, China

Liu

et al. 2011

Environ Monit Assess

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons (PAHs) partitioning among dissolved phase, suspended particulate matter, pore water, and sediment was studied in one moderately contaminated river (Yongding New River) and two highly contaminated drainage canals (South Drainage Canal and North Drainage Canal) of Tianjin, China. PAHs concentrations in sediment (ranged from 0.2 to 195 μg/g) showed positive relations with both total organic carbon contents (ranged from 0.7% to 31.1%, dw) and black carbon contents (ranged from 0.1% to 2.1%, dw) in the sediments. Moreover, most of the measured organic carbon normalized partition coefficients of PAHs in the three streams were 0.76 to 1.54 log units higher than the predicted values. These indicated that strong and nonlinear sorption

show abstract

“…The maximum PAH concentrations in pore water were recorded at about 10 to 25 cm depth that corresponded to the maximum sedimentary PAH concentrations at nearly the same depth (unpublished data). Similar trends were also observed by other investigations (Gao et al 1998;McGroddy and Farrington 1995). The concentrations of total PAHs in pore water were correlated with the DOC contents.…”

Section: Profiles Of Pahs In Pore Watersupporting

confidence: 90%

Distribution, diffusive fluxes, and toxicity of heavy metals and PAHs in pore water profiles from the northern bays of Taihu Lake

Lei

Zhang

Shan

et al. 2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

Pore water plays a more significant role than do sediments in pollutant cycling dynamics. Also, concentrations of pollutants in pore water provide important information about their bioavailability or eco-toxicity; however, very few studies have focused on this topic. In this study, four duplicate sediment cores from three typical northern bays as well as the central part of Taihu Lake were collected to investigate the distribution, diffusive fluxes, and toxicity of heavy metals and polycyclic aromatic hydrocarbons (PAHs) in pore water profiles, which will be good in understanding the mobility and toxicity of these toxic pollutants and achieving better environmental management. The diffusive fluxes of heavy metals across the sediment-water interface was estimated through Fick's First Law, and the toxicity of heavy metals and PAHs in pore water was assessed by applying a water quality index (interstitial water toxicity criteria unit, IWCTU) and a hazard index (HI), respectively. The average concentrations of Cr, Cu, Ni, Pb, and Zn in surface pore water were 18.8, 23.4, 12.0, 13.5, and 42.5 μg L −1 , respectively. Also, concentrations of the selected heavy metals in both overlying water and pore water from Taihu Lake were all lower than the standard values of the environmental quality standards for surface water. The concentrations as the pore water depth increased, and the highest detected concentrations of heavy metals were recorded between 3 and 5 cm below the sediment surface. The average diffusive fluxes of these metals were 27.3, 24.8, 7.03, 7.81, and −3.32 μg (m 2 day) −1 , respectively, indicating export from sediment into overlying water, with the exception of Zn. There was a potential risk of toxicity, mainly from Pb and Cu, indicating that heavy metals in pore water had slight to moderate impact on sediment-dwelling organisms by values of the IWCTU and the Nemeraw index. The total PAH concentrations in pore water were higher than those in overlying water, and such gradient implies a potential flux of PAHs from pore water to overlying water. The average HI value of PAHs in surface pore water showed no or low ecological risk. While there may be occasional risk due to the HI values in some sites being greater than 1, the dominant contributors were carcinogenic PAHs. Because of their potential biological impact, heavy metals and PAHs and their comprehensive toxic effects in pore water should be given priority attention to keep the safety of Taihu Lake.

show abstract

Sediment Porewater Partitioning of Polycyclic Aromatic Hydrocarbons in Three Cores from Boston Harbor, Massachusetts

Cited by 297 publications

References 25 publications

Biota Accumulation of Polycyclic Aromatic Hydrocarbons in Benin Coastal Waters

Biota Accumulation of Polycyclic Aromatic Hydrocarbons in Benin Coastal Waters

Partitioning and sources of PAHs in wastewater receiving streams of Tianjin, China

Distribution, diffusive fluxes, and toxicity of heavy metals and PAHs in pore water profiles from the northern bays of Taihu Lake

Contact Info

Product

Resources

About