Title of article :
Concentrations and accumulation profiles of polychlorinated dibenzo-p-dioxins and dibenzofurans in aquatic tissues, and ambient air from South Korea
Author/Authors :
Sook Hyeon Im، نويسنده , , Karl D. Strause، نويسنده , , John P. Giesy ، نويسنده , , Yoon Seok Chang، نويسنده , , Muneaki Matsuda، نويسنده , , Tadaaki Wakimoto، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
10
From page :
1293
To page :
1302
Abstract :
Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/DFs), including 2378-substituted isomers were present in samples of shellfish and fish, and ambient air collected from Masan Bay, and Masan City, South Korea. Total concentrations of PCDDs/DFs in mussel and clam were 750 pg g−1, lipid weight (lw), and 3418 pg g−1, lw, respectively. Total concentrations of PCDDs/DFs in mullet, gizzard and flounder were 52, 82, and 122 pg g−1, lw, respectively. Shellfish tissues contained a greater number of PCDD/DF isomers, contributing greater total concentrations of PCDDs/DFs compared to fish collected from the same locations. The predominance of 2378-substituted PCDDs/DFs in fish is represented in greater total concentrations of 2378-TeCDD equivalents (TEQs), whereas there was very limited occurrence of 2378-substituted isomers in shellfish. TEQ concentrations in samples of mussel and clam were 0.97 and 12 pg g−1, lw, respectively. Total TEQs in mullet, gizzard and flounder were 12, 22 and 18 pg g−1, lw, respectively. In fish 2378-substituted PCDDs accounted for 100% of the total concentrations of PCDDs, and 2378-substituted PCDFs accounted from 59% to 73% of the total PCDFs. The 2378-substituted isomers accounted for only 3% of the total PCDDs/DFs in shellfish. Ambient air collected from two sites contained a wide range of isomers of tetra- through heptachlorinated PCDDs/DFs. Even though the total concentration of PCDDs/DFs in ambient air (12.8 pg m−3) collected from an industrial area was 2-fold greater than that in air samples (6.3 pg m−3) collected from an urban/rural area, total TEQs (0.07 and 0.08 pg m−3) there was no statistical difference between the two samples.
Keywords :
FISH , Masan Bay , PCDDs , air , PCDFs , Shellfish
Journal title :
Chemosphere
Serial Year :
2004
Journal title :
Chemosphere
Record number :
737336
Link To Document :
بازگشت