Distribution Characteristics of Polycyclic Aromatic Hydrocarbons in the Sediments of Kwangyang Bay in Korea

광양만 연안 퇴적토 중의 다환방향족탄화수소류의 분포특성

  • Chung, Hung-Ho (Department of Chemical System Engineering Program, Chonnam National University) ;
  • Jeong, Ho-Seung (Department of Chemical System Engineering Program, Chonnam National University) ;
  • Choi, Sang-Won (Department of Chemical System Engineering Program, Chonnam National University)
  • 정흥호 (전남대학교 공과대학 화학시스템공학전공) ;
  • 정호승 (전남대학교 공과대학 화학시스템공학전공) ;
  • 최상원 (전남대학교 공과대학 화학시스템공학전공)
  • Received : 2006.02.09
  • Accepted : 2006.03.06
  • Published : 2006.04.10

Abstract

The concentrations of 16 priority PAHs (US EPA standard) were analyzed in the surface sediments obtained from 23 sampling sites near Kwangyang Bay in Korea. There was a local variability in the total PAHs ranged from 0.01 to 171.39 mg/kg, with a mean value of $8.13{\pm}24.8mg/kg$. The major pollution sources of PAHs near Kwanyang Bay were Taeindo, Sueo stream and Wallae stream, whose concentrations were 114.81, 38.37 mg/kg and 19.05 mg/kg, respectively. It showed that PAHs concentrations were increased with the decrease of particle size and with the increase of organic carbon contents in three fractioned sediments. From the analysis of PAHs source using LMW/HMW, Phe/Ant, and Fla/Pyr, pyrolysis by-products were mostly showed in Kwangyang Bay and some place showed the mixure of pyrolysis by-products, and crude oil by-products. Besides, the toxic effects assessment on benthic ecosystem for three major pollution sources showed that the PAHs concentration of Taindo which was mainly accumulated with carcinogenic PAHs exceeds ERM value and the PAHs of Sueo and Wallae streams are the degree of ERL value.

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