Current contents of persistent organic contaminants, polychlorinated biphen
yls (PCBs), polycyclic aromatic hydrocarbons (PAHs) and the congeners (naph
thalene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, chrysene
, benzo(a)anthracene, benzo(a)pyrene and benzo(e)pyrene), DDTs and metaboli
tes in the intertidal sediments of the Bohai Sea and the Yellow Sea were st
udied. The mean levels of DDTs, PAHs and PCBs were 177.52, 877.2 and 3.4 ng
g(-1) dry weight, respectively. The spatial trends of the contaminant resi
due levels were analysed too. (C) 2001 Elsevier Science Ltd. All rights res
erved.