• Title/Summary/Keyword: dioxins

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Vertical Distribution of Persistent Organic Pollutant in Core Sediments from Upo Wetland (자연습지 우포늪 퇴적물의 연도별 잔류성 유기오염물질 축적도)

  • Boo, Min Ho;Lee, Chan Won;Lee, Sang Chun;Kim, Jong Guk;Jeon, Hong Pyo;Kim, Ki Ho;Choi, Kyung Hee;Yun, Jun Hun;Jeong, Mi Jung
    • Journal of Wetlands Research
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    • v.10 no.2
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    • pp.23-37
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    • 2008
  • The vertical distribution of dioxins and hexachlorobenzene(HCB) in a sediment core was investigated to elucidate historical trends of dioxins and HCB deposited into Upo wetland. The total concentration of dioxin ranged from 8.7 to 66.27 pg/g-dw in Upo sediments deposited, and from 17.64 to 97.03 pg/g-dw in Mokpo. Dioxin fluxes increased from the first-1990s and then reached a maximum in the mid-1990s. The major source of dioxin by comparing the congeners pattern was pentachlorophenol(PCP) used of agrochemicals. The HCB concentration in most of samples was detected below the MDL(Method Detection Limit of 0.5ng/g), except a few samples.

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A floor pattern and mixing characteristic analysis to design the equipment for reducing the dioxins (먼지ㆍ활성탄 접촉형 다이옥신류 저감장치내 유동 해석)

  • 최상민;구윤서;윤균덕;조주생;강병춘
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.207-208
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    • 2001
  • 1990년 이후 생활폐기물보다 사업장 폐기물이 많아지면서 총 폐기물 발생량은 점차 증가하고 있는 상황이다. 날로 증가하는 폐기물을 국내 실정상 매립처리하는 것은 한계가 있으므로, 효율적인 감량화 정책으로 폐기물 발생량을 저감하고, 소각에 의한 처리가 요구된다. 그러나 폐기물 소각처리는 소각 재와 유해가스를 배출하기 때문에 많은 문제점이 있다. 특히 인체에 맹독성인 다이옥신류(polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans:PCDD/Fs)가 배출되면서 현재 사회적 문제로 크게 부각되고 있기 때문에 소각시 다이옥신을 처리할 수 있는 장치의 개발이 필요하다. (중략)

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GENE EXPRESSION PROFILE OF HUMAN MAMMARY EPITHELIAL CELLS IN RESPONSE TO 2,3,7,8-TETRACHRODIBENZO-p-DIOXIN

  • Ahn, Nam-Shik;Park, Joon-Suk;Cho, Eun-Hye;Seo, Min-Soo;Nyuen ba Tiep;Lee, Young-Soon;Kang, Kyung-Sun
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2002.11b
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    • pp.145-145
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    • 2002
  • 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a prototype and the most potent chemical of the polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (dioxins). A variety of studies on the toxic effects of dioxin and related compounds have been conducted internationally since 1990.(omitted)

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