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Surface and core sediments collected from six fish farms in Hong Kong and from reference sites were investigated for the enrichment and sources of polycyclic aromatic hydrocarbons (PAHs). Moderately high ∑PAH 16 levels (123–947ngg −1 , mean: 450ngg −1 ) were found in the surface aquaculture sediments. In comparison with the sediments from the reference sites, the average enrichment...
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