Table 3.

Concentrations of the 16 PAHs extracted from the sediments at the various sampling zones

Values are given in units of micrograms of PAH per kilogram of sediment. The relative concentrations and percentage of total concentrations of low (LMW) and high molecular weight (HMW) and carcinogenic PAHs are given. LMW-PAHs: two- to three-ringed PAHs; naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene and anthracene. HMW-PAHs: four- to six-ringed PAHs; fluoranthene, pyrene, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranathene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, dibenz[a,h]anthracene and benzo[ghi]perylene. HMW-carcinogenic PAHs: benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranathene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, dibenz[a,h]anthracene and benzo[g,h,i]perylene (Classifications based on the IARC monograph (http://monographs.iarc.fr/ENG/Classification/ClassificationsAlphaOrder.pdf and those reported in Chen and Chen 2011)