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The concentrations and relative abundances of sixteen priority pollutant polycyclic aromatic hydrocarbons (PAHs) were measured in suspended particulates and benthic sediments from Hamilton Harbour. The PAH concentrations in suspended particulates, often as high as PAH concentrations in benthic sediments, ranged between 4.41 and 106.02 µg/g. The highest PAH concentrations were found in areas close to the industrial sites. Selected samples of suspended particulates from western part of Lake Ontario were also analyzed for PAHs to learn about the transport of PAHs from the harbour to Lake Ontario via the Burlington Ship Canal. The results reveal export of PAHs along with the other contaminants from Hamilton Harbour to Lake Ontario. In addition to PAHs, n-alkanes were determined in all samples, as they are readily determined from the extracts and they are useful in deciphering the sources of suspended particulates, hence particle-associated PAHs.
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Mayer et al. (1992) studied this question.
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