PCDDS, PCDFS AND COPLANAR PCBS IN COASTAL AND MARKETING FISHES IN JAPAN

被引：20

作者：

TAKAYAMA, K

MIYATA, H

MIMURA, M

KASHIMOTO, T

机构：

[1] Setsunan University, Hirakata 573-01, 45-1, Nagaotoge-cho

来源：

EISEI KAGAKU-JAPANESE JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH | 1991年 / 37卷 / 02期

关键词：

POLYCHLORINATED DIBENZO-P-DIOXIN; PCDD; POLYCHLORINATED DIBENZOFURAN; PCDF; COPLANAR PCB; FISH SAMPLE; RESIDUE LEVEL; CONTAMINATION; TEQ; I-TEF;

D O I：

10.1248/jhs1956.37.125

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Coastal and marketing fishes in Japan were analyzed for polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and coplanar PCBs (Co-PCBs) at limits of determination of 0.01-0.1 ppt (pg/g) on wet weight basis in the selected ion monitoring method by using high resolution GC/MS (R = 7000-10000). Highly toxic 2,3,7,8-substituted PCDD and PCDF isomers (2,3,7,8-PCDDs and 2,3,7,8-PCDFs) were detected in all fish samples examined. The total concentrations of 2,3,7,8-PCDDs and 2,3,7,8-PCDFs were respectively 1.60-4.3 and 2.40-7.6 ppt in coastal fishes, and 0.04-1.50 and 0.01-3.7 ppt in marketing fishes. It was first clarified that all analyzed fish samples were also polluted by toxic Co-PCBs at levels of 290-1500 and 0.40-170 ppt in coastal and marketing fishes, respectively. On the other hand, 2,3,7,8-T4CDD toxic equivalent (TEQ) levels of PCDDs and PCDFs were calculated by international toxicity equivalency factor (I-TEF), and that of Co-PCB by TEF reported by Hanberg et al. The total TEQ levels of PCDDs/PCDFs in coastal and marketing fishes were 0.63-1.41 ppt (mean +/- S.D.: 0.87 +/- 0.28 ppt) and < 0.01-0.86 ppt (0.33 +/- 0.25 ppt), respectively. In addition, average TEQ levels of Co-PCBs in coastal and marketing fishes were 9.4 +/- 7.3 and 0.22 +/- 0.24 ppt, respectively. It is noteworthy that the TEQ level of Co-PCBs in coastal fish was greater than that of PCDDs or PCDFs.

引用

页码：125 / 131

页数：7

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