Graduate Faculty of Environment, University of Tehran
Abstract
Mangrove sediments were collected during wet and dry seasons from nine stations in Khamir,
Laft and natural reservoir mangrove-dense areas of Hormozgan province in the south of Iran. Σ PCBs ranged
from 5.33 to 15.5 ng/g dry weight and the dominant congener was no.153. Average Σ DDTs for Khamir and
Laft mangroves were 16.58 ± 1.51 and 18.8 ± 9.98 ng/g dry weight. DDT was more abundant than DDE and
DDD isomers, which indicated the input of DDT. The sediment quality guideline shows that the concentration
of Σ PCBs were below the ER-M guideline, whereas levels of Σ DDTs were between ER-L and ER-M. The
mangrove ecosystem in Hormozgan province is suffering from urban and industrial development
