Related Experiment Video
Updated: Jul 14, 2026
Deployment and Retrieval of Mineral Samplers
Published on: January 20, 2026
A congener-specific survey for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs)
Narayanan Kannan1, Sang Hee Hong, Won Joon Shim
1Korea Ocean Research and Development Institute, South Sea Institute, 391 Jangbuk-Ri, Jangmok-Myon, Geoje-Shi, Republic of Korea.
Abstract:
A congener-specific determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in 21 surface sediments from Masan Bay, Korea revealed that the most toxic 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) was detected in 76% of the samples and 2,3,7,8-tetrachlorodibenzofuran (2,3,7,8-TCDF) in 100% of the samples analyzed. The concentration range of SigmaPCDDs and SigmaPCDFs are: 230-6900; 120-16700pgg(-1) dry mass respectively. WHO Toxic Equivalents (WHO-TEQ) in Masan Bay sediment ranged from 0.53 to 99ng TEQkg(-1)d.m. for PCDDs; 4 to 1300ngTEQkg(-1)d.m. for PCDFs. In comparison with an earlier survey, the concentrations of dioxins and furans have more than doubled and the SigmaWHO-TEQ values have increased 15 times within a decade. Both point and non-point sources of pollution are suspected, especially, local sewage treatment plants are found to contribute.
More Related Videos
04:17Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate
Published on: January 20, 2023
11:59Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS
Published on: July 3, 2025
