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  • Title: An assessment of human influences on sources of polycyclic aromatic hydrocarbons in the estuarine and coastal sediments of China.
    Author: Duan X, Liu J, Zhang D, Yin P, Li Y, Li X.
    Journal: Mar Pollut Bull; 2015 Aug 15; 97(1-2):309-318. PubMed ID: 26073798.
    Abstract:
    Sediments collected from the coastal area of China, embracing west coast of Bohai Sea, south coast of Shandong Peninsula, and the Changjiang estuary (listed in order of decreasing north latitude), were analyzed for polycyclic aromatic hydrocarbons (PAHs). ∑PAH (Sixteen US EPA priority PAHs) were 2.7-350.9ng/g. Petroleum residue was the major contributor of PAHs in the coastal sediments of China due to oil leakage from ships and offshore oil fields. The contribution of vehicular emissions in coast of North China was significantly lower than that in the Changjiang Estuary, and the reverse was true for coal combustion. PAH concentrations in the sediment core of the Changjiang estuary steadily increased upward and the variation was primarily due to economic development and severe floods. The impact on PAHs by vehicular emissions (37.2%) and petrogenic sources (45.8%) overwhelmed combustion sources (17.0%).
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