Abstract
Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) are a group of toxic halogenated aryl hydrocarbons inducing various physiological disorders against biological organisms. Here, we investigated their levels in sediment samples taken from 12 different rivers in Korea. The levels of PCDD/PCDFs in sediment samples were expressed as concentrations and international TEQ values. Among 17 PCDD/PCDFs selected as target compounds in this study, the 1,2,3,4,7,8-HxCDD and OCDD were found in all river sediments with significant variation in various congener profiles of PCDD/PCDFs in sediments. PCDD/PCDFs could be monitored by sensitive biomarkers using insect immune system. Out of 12 river sediment samples, the biomarkers reported four spots (up, middle, and down Singil sites and Ansan) as putative contamination areas. When comparing both chemical and biological monitoring results, two methods agreed three spots of Singil as contamination areas (above 10 ppt levels) as well as six river sediment samples as relatively less-contaminated areas, but differed in the results in Ansan and Miho, probably due to relative non-specificity of biomarkers. Despite some disparity between bio- and chemical monitoring results, the biomarkers can be recommended as a device warning the contamination of dioxins in the environment because of a fast and inexpensive detection method.
| Original language | English |
|---|---|
| Pages (from-to) | 323-331 |
| Number of pages | 9 |
| Journal | Chemosphere |
| Volume | 61 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2005 Oct 1 |
| Externally published | Yes |
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Keywords
- Biomarker
- Korea
- PCDDs
- PCDFs
- River
- Sediment
- Spodoptera exigua
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Chemistry
Cite this
Levels of PCDDs and PCDFs in Korean river sediments and their detection by biomarkers. / Ryoo, Keon Sang; Ko, Seong O.; Yong, Pyo Hong; Choi, Jong H.; Cho, Sunghwan; Kim, Yonggyun; Bae, Yeon Jae.
In: Chemosphere, Vol. 61, No. 3, 01.10.2005, p. 323-331.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Levels of PCDDs and PCDFs in Korean river sediments and their detection by biomarkers
AU - Ryoo, Keon Sang
AU - Ko, Seong O.
AU - Yong, Pyo Hong
AU - Choi, Jong H.
AU - Cho, Sunghwan
AU - Kim, Yonggyun
AU - Bae, Yeon Jae
PY - 2005/10/1
Y1 - 2005/10/1
N2 - Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) are a group of toxic halogenated aryl hydrocarbons inducing various physiological disorders against biological organisms. Here, we investigated their levels in sediment samples taken from 12 different rivers in Korea. The levels of PCDD/PCDFs in sediment samples were expressed as concentrations and international TEQ values. Among 17 PCDD/PCDFs selected as target compounds in this study, the 1,2,3,4,7,8-HxCDD and OCDD were found in all river sediments with significant variation in various congener profiles of PCDD/PCDFs in sediments. PCDD/PCDFs could be monitored by sensitive biomarkers using insect immune system. Out of 12 river sediment samples, the biomarkers reported four spots (up, middle, and down Singil sites and Ansan) as putative contamination areas. When comparing both chemical and biological monitoring results, two methods agreed three spots of Singil as contamination areas (above 10 ppt levels) as well as six river sediment samples as relatively less-contaminated areas, but differed in the results in Ansan and Miho, probably due to relative non-specificity of biomarkers. Despite some disparity between bio- and chemical monitoring results, the biomarkers can be recommended as a device warning the contamination of dioxins in the environment because of a fast and inexpensive detection method.
AB - Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) are a group of toxic halogenated aryl hydrocarbons inducing various physiological disorders against biological organisms. Here, we investigated their levels in sediment samples taken from 12 different rivers in Korea. The levels of PCDD/PCDFs in sediment samples were expressed as concentrations and international TEQ values. Among 17 PCDD/PCDFs selected as target compounds in this study, the 1,2,3,4,7,8-HxCDD and OCDD were found in all river sediments with significant variation in various congener profiles of PCDD/PCDFs in sediments. PCDD/PCDFs could be monitored by sensitive biomarkers using insect immune system. Out of 12 river sediment samples, the biomarkers reported four spots (up, middle, and down Singil sites and Ansan) as putative contamination areas. When comparing both chemical and biological monitoring results, two methods agreed three spots of Singil as contamination areas (above 10 ppt levels) as well as six river sediment samples as relatively less-contaminated areas, but differed in the results in Ansan and Miho, probably due to relative non-specificity of biomarkers. Despite some disparity between bio- and chemical monitoring results, the biomarkers can be recommended as a device warning the contamination of dioxins in the environment because of a fast and inexpensive detection method.
KW - Biomarker
KW - Korea
KW - PCDDs
KW - PCDFs
KW - River
KW - Sediment
KW - Spodoptera exigua
UR - http://www.scopus.com/inward/record.url?scp=25144521026&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=25144521026&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2005.02.093
DO - 10.1016/j.chemosphere.2005.02.093
M3 - Article
C2 - 16182849
AN - SCOPUS:25144521026
VL - 61
SP - 323
EP - 331
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
IS - 3
ER -