PAH, PCB, TPH and mercury in surface sediments of the Delaware River Estuary and Delmarva Peninsula, USA

MARINE POLLUTION BULLETIN

卷:129

Article

Kim, A. W.¹  Vane, C. H.¹  Moss-Hayes, V.¹  Engelhart, S. E.²  Kemp, A. C.³ 

[1] British Geol Survey, Kingsley Dunham Ctr, Keyworth NG12 5GG, Notts, England

[2] Univ Rhode Isl, Dept Geosci, 9 East Alumni Ave, Kingston, RI 02881 USA

[3] Tufts Univ, Dept Earth & Ocean Sci, Medford, MA 02155 USA

关键词: Polycyclic aromatic hydrocarbons;    Polychlorinated biphenyls;    Total petroleum hydrocarbons;    Perylene;    Sediment quality guideline values SQG;   

DOI  :  10.1016/j.marpolbul.2017.10.008

来源: Elsevier

【 摘 要 】

Surface sediment concentrations of polycyclic aromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB), total petroleum hydrocarbons (TPH) and mercury, were compared from two areas with contrasting land use history, the industrial Delaware Estuary and the rural Delmarva Peninsula (USA). TPH in the Delaware (38-616 mg/kg) and saturate/aromatic fractions suggested petroleum/industrial sources compared to biogenic sources in the Delmarva coastal control (< 34-159 mg/kg). Within the Delaware the Sigma PAH18 ranged from 3749 to 22,324 mu g/kg with isomeric ratios indicative of petroleum combustion source/s, conversely, those in the Delmarva (5-2139 mu g/kg) also yielded relatively higher perylene that were consistent with natural background levels derived from vegetation/coal combustion source/s. Sigma PCB(tri-hepta) concentrations in the Delmarva (0.6-6.5 mu g/kg) were less than the threshold effect concentration (TEC), whereas the Delaware had received much higher PCB loading (18.1-136.8 mu g/kg) as evidenced by a significantly higher amounts in some samples (> TEC).

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