• Proceedings of the Korea Air Pollution Research Association Conference
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• 1999.10a
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• pp.225-228
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• 1999

The formation of dioxin (term used here to refer to both polychlorinated dibenzo-p-dioxins, PCDDS, and dibenzofurans, PCBFs) in combustion processes is of concern because of the extreme toxicities of some of these compounds and because of their resistance to degradation in the environment. The number and location of chlorine substituents differentiate dioxin homologues and isomers, respectively. There are a total of 75 PCDD congeners and 135 PCDF congeners.(omitted)

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2005.05a
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• pp.298-300
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• 2005

다이옥신 29종을 분석한 결과 PCDD/PCDFs는 검출빈도가 3/4(붕어), 0/4(황소개구리)였으며, co-PCBs는 검출빈도가 4/4(붕어), 3/4(황소개구리)를 나타내었다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.04a
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• pp.237-241
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• 2000

우리의 일상생활에서 발생되는 생활쓰레기의 처리 문제가 심각한 사회문제로 대두되고 있다. 쓰레기의 일부는 재활용되지만 대부분의 쓰레기는 소각, 매립 등의 방법으로 처리되고 있다. 우리 나라는 협소한 국토사정과 매립과정에의 악취, 먼지, 침출수 등으로 인한 환경문제를 감안할 때 쓰레기의 처리를 매립처리에 의존하는 것은 바람직하지 않다. 따라서 우리 나라의 현실성을 고려할 때 소각처리의 확대는 필연적으로 볼 수 있다(1999, 고윤화) (중략)

• Proceedings of the Korean Society of Life Science Conference
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• 2008.10a
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• pp.93.2-93.2
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• 2008

• Korean Journal of Environmental Agriculture
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• v.24 no.2
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• pp.139-145
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• 2005

All 209 PCB congeners were analyzed in cheese produced in Korea and Canada. 5 Korean and 10 Canadian cheeses were purchased in supermarket in their native countries. 93 PCB congeners were found in Korean cheese; 83 congeners were detected in Canadian cheese. Total PCB concentrations were 299.81 and 200.96 pg/g w.w. in Korean and Canadian cheeses respectively; PCB concentration was 1.5 times higher in Korean than Canadian cheese. Korean TEQ concentration (0.0067 pg-TEQ/g w.w.) in cheese was similar to in Canadian cheese (0.0064 pg-TEQ/g w.w.). These PCB concentrations range was low level compared with that of other cheeses globally. The correlation coefficient $(R^2)$ of regression was high (0.752) between each PCB congener concentration in both Korean and Canadian cheese.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.5
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• pp.346-351
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• 2009

To investigate concentration and characteristics of dioxins in soil at Cheongju city, total 28 soil samples were collected. The total and I-TEQ concentration of 17 PCDDs/DFs ranged from 2.30 to 630.40 pg/g dry weight and from 0.002 to 9.79 pg I-TEQ/g dry weight with averages of 55.42 pg/g and 1.13 pg I-TEQ/g, respectively. These levels are very lower than those of around various incinerators in Korea (from n.d. to 153.23 with average value of 7.36 I-TEQ/g). The correlation between total concentration and TEQ concentration showed significant with 99% confidence interval (p-value < 0.001). The TEQ concentration as land use was high as follows; industrial area> green area> residential and commercial area> farm land. In terms of congener distribution, OCDD which is highly detected in general soil samples, was predominant and showed various fraction (from 23 to 100%). The ratios of PCDF concentration against to PCDD concentration varied as samples (from 0.1 to 2.4).

• Analytical Science and Technology
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• v.17 no.2
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• pp.153-162
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• 2004

Dioxin CRM for QA/QC was prepared with fly ash collected from municipal waste incinerator. With that CRM inter-laboratory test was carried out. The collected fly ash was conducted several homogeneity steps including sievings and mixing. Homogeneity test and estimation of uncertainty was performed by one-way ANOVA based on ISO guide 35. Compared concentrations of fly ash of participants to CRM values, PCDDs value was lower than that of CRM in almost participants, and showed higher PCDFs concentration than that of CRM. Although there is a small difference in PCDD/Fs concentrations with congeners of extract, the result was close to mean value.

• Analytical Science and Technology
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• v.18 no.6
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• pp.559-567
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• 2005

For the analytical method of PCDD/Fs in blood, which have been issued recently, SRM 1589a of NIST(National Institute of Standards and Technology) was used and a practical analytical method of PCDD/Fs in blood was presented through comparison of methods of Canada and Japan. The proposed method used alkali-digestion extraction for removal of the lipid effectively using two capillary columns. The limit of quantification of TeCDD/DF and PeCDD/DF was 1 pg/g-lipid, HxCDD/DF and HpCDD/DF was 2 pg/g-lipid, OCDD/DF was 4 pg/g-lipid. With consideration the range of detected concentration, calibration standards were presented as $CS_L$(0.1~1), $CS_1/2$(0.25~2.5), $CS_1$(0.5~5.0), $CS_2$(2~20), $CS_3$(10~100).

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.11a
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• pp.330-331
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• 2000

환경오염 유기물질 중 다이옥신류는 높은 화학적 안정성과 생화학적 잔류성으로 인해 1970년대 이후 외국에서는 가장 중요한 환경물질의 하나로 취급되면서 다양한 연구가 이루어지고 있다. 이러한 다이옥신은 여러 가지 경로를 통해 생성되는데 이 중에서도 연소과정, 특히 폐기물 소각로에서 생성되는 것이 주 배출원으로 알려져 있다. 국내에서 1997년도 1차로 실시한 전국의 소각시설 다이옥신 배출 실태조사 이후 정부에서는 신설 도시쓰레기 소각장에 대해서는 0.1 ng-TEQ/Nm$^3$의 배출기준을 설정하고 정기적인 다이옥신 측정을 의무적으로 실시할 것을 법규화한 바 있다. (중략)

• 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)