광양만 및 섬진강 하구에서의 프탈레이트 화합물의 분포 특성

Abstract

- Among the phthalic esters, di -butyl phthalate (DBP) and di -2-ethylhexylphthalate (DEHP), which are categorized endocrine disrupting chemicals, account forin water and in sediment samples from Gawngyang Bay and Seomjin River estuary.This might be the first report in contamination of phthalates in the marine environ-ment of Korea. DBP and DEHP were detected with the high concentration and highfrequency, while the other phthalic compounds were below the detection limits. Theaverage concentrations of DBP and DEHP in sediment from Gawngyang Bay were 33.8ng g-1 and 67.4 ng g-1 on a dry weight basis, respectively. The concentrations in surfacewater from Seomjin River estuary were in the range of 62.7 ~ 333.8 ng L-1 for DBP and25.6 ng L-~ 116.1 ng L-1 for DEHP. In sediments from Seomjin River estuary, DBPranged 9.1 ~ 149.3 ng g-1, and DEHP 46.3 ~ 156.3 ng g-1. Phthalic esters concentrationsfound in Seomjin River estuary were much less than those in other rivers in Korea.Distribution pattern of DBP and DEHP concentrations in Seomjin River estuary indi-cates that both compounds are introduced to Gwangyang Bay through run-off.