The characterization of PCDDs, PCDFs and coplanar PCBs during the past 50 years in Gwangyang Bay, South Korea

Kim, Y.S.; Eun, Heesoo; Cho, Hoonsung; Kim, K.S.; Watanabe, Eiji; Baba, Koji; Katase, Takayoshi

doi:10.1016/j.jhazmat.2007.10.088

Cited by 19 publications

(8 citation statements)

References 30 publications

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“…PCDD/Fs in PCP were characteristically dominated by OCDD, and PCP was reported to be the main source of PCDD/Fs in sediments from Tokyo Bay Basin [25], Dongting Lake [27], and Gwangyang Bay, South Korea [28]. In Guangdong Province, 1500 tons of PCP-Na was used to control Ampullaria gigas in Guangdong Province, mainly in the North River basin, between 1960 and 1985.…”

Section: The Predominant Of Ocddmentioning

confidence: 99%

Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

Ren

Peng

Chen

et al. 2009

Journal of Hazardous Materials

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Section: The Predominant Of Ocddmentioning

confidence: 99%

Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

Ren

Peng

Chen

et al. 2009

Journal of Hazardous Materials

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“…Sediment core records have also been used to determine possible sources (Kim et al, 2008) and weathering processes of PBTs in sediment (Magar et al, 2005). We hypothesized that sediment cores collected in IHSC could elucidate the history of PCBs use in the surrounding area.…”

Section: Introductionmentioning

confidence: 99%

Record of PCB congeners, sorbents and potential toxicity in core samples in Indiana Harbor and Ship Canal

Martínez

Hornbuckle

2011

Chemosphere

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Indiana Harbor and Ship Canal (IHSC) is an active navigational system that serves a heavily industrial area of southern Lake Michigan. We have determined the amount of polychlorinated biphenyls (PCBs), congener distributions, sorbent types and potential for dioxin-like PCB toxicity from two IHSC sediment cores. Vertical distributions of ∑PCBs (sum of 161 individual or coeluting congeners) ranged from 410 to 91000 and 1800 to 41000 ng g−1 dry weight (d.w.) for cores 1 and 2, respectively. Core 1 showed its highest accumulation rate for the year ~1979 and exhibits a strong Aroclor 1248 signal in sediments accumulating over the last 60 years. It appears that from the late 1930s until the beginning of the 1980s there was a large and constant input of PCBs into this system. This pattern differs from lake cores from the Great Lakes region which commonly exhibit a rapid increase, a peak, followed by a sharp decrease in the PCB accumulation rates. Core 2 also has a strong Aroclor 1248 signal in the top layers, but deeper layers show evidence of mixtures of Aroclors and/or weathering processes. High levels of black carbon as a fraction of total organic carbon were found in both cores (median ~30%), which reflect the long history of local combustion sources. No strong relationship was found between ∑PCB concentration and sorbents. Both cores contain dioxin-like PCBs that are highest in concentration below the surface. The high levels of PCBs in the deep sediments are of concern because of plans to dredge this system.

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“…Most polychlorinated biphenyls (PCBs) in the environment are found in sediment which acts as a source for long-term release of PCBs to aqueous phase [1,2]. In addition to their high stability and low aqueous solubility, the high affinity of PCBs for organic substances in sediment makes them difficult to treat [3,4].…”

Section: Introductionmentioning

confidence: 99%

PCB congener sorption to carbonaceous sediment components: Macroscopic comparison and characterization of sorption kinetics and mechanism

Choi

Al-Abed

2009

Journal of Hazardous Materials

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The characterization of PCDDs, PCDFs and coplanar PCBs during the past 50 years in Gwangyang Bay, South Korea

Cited by 19 publications

References 30 publications

Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

Record of PCB congeners, sorbents and potential toxicity in core samples in Indiana Harbor and Ship Canal

PCB congener sorption to carbonaceous sediment components: Macroscopic comparison and characterization of sorption kinetics and mechanism

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