Distribution and sources of polycyclic aromatic hydrocarbons in the sediments of Lake Erie, Part 1. Spatial distribution, transport, and deposition

Anna Smirnov, Teofilo Abrajano*, Alex Smirnov, Allen Stark

*Corresponding author for this work

    Research output: Contribution to journalConference articlepeer-review

    59 Scopus citations

    Abstract

    We examined the spatial distribution of polycyclic aromatic hydrocarbons (PAH) in Lake Erie, lower Great Lakes. The molecular distribution of parental PAH is combined with their compound- specific carbon isotope signatures to statistically identify three distinctive zones within the lake. Portions of the lake that are immediately adjacent to the major cities of Detroit, Cleveland and Buffalo compose the City Zone, characterized by the highest PAH concentrations and 13 C-enriched isotopic compositions. The two other clusters partitioned the lake into a southern sector and a northern sector, with the latter exhibiting the lowest PAH concentrations and the most 13 C-depleted isotopic compositions. It appears that PAH are fluvially introduced at the three major cities, and are further transported and redistributed by surface and bottom circulation. This contamination superimposed on a natural background, seen in the northern part of the lake, is probably responsible for the observed distribution pattern.

    Original languageEnglish (US)
    Pages (from-to)1813-1828
    Number of pages16
    JournalOrganic Geochemistry
    Volume29
    Issue number5-7 -7 pt 2
    DOIs
    StatePublished - Nov 1 1998
    EventProceedings of the 1997 18th International Meeting on Organic Geochemistry. Part 2 (of 2) - Maastricht, Neth
    Duration: Sep 22 1997Sep 26 1997

    Keywords

    • Compound specific isotope analysis
    • Lake sediments
    • Molecular composition
    • Polycyclic aromatic hydrocarbons
    • Principal components analyses
    • Spatial distribution and transport

    ASJC Scopus subject areas

    • Geochemistry and Petrology

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