EROD-microbioassay에 의한 학교 소각로 잔재 중 다이옥신 유사물질의 측정

• 영문명: Determination of Dioxin-like Components in the School Waste Incinerator Residues by EROD-microbioassay
• 발행기관: 한국환경보건학회
• 저자명: 정규혁 오승민 윤완진
• 간행물 정보: 『1. 한국환경보건학회지』제26권 제3호, 11~17쪽, 전체 7쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2000.09.30

영문 초록

There are among the most relevant toxic emissions from incinerators such as polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (PCBs). Induction of cytochrome P4501A1 catalyzed 7-ethoxyresorufin O-deethylase(EROD) activity in mammalian cell culture(EROD bioassay) is thought to be a selective and sensitive parameter used for the quantification of dioxin-like components. In this study, the toxic emissions from several school waste incinerators were evaluated by determination of CYPIA catalytic activity and cytotoxicity using cell culture microbioassay. The incinerator residue and soil samples were collected from the schools located in Kyunggi province from April to June 1999. The samples were extracted in a Soxhlet apparatus using toluene for 20 hours. In order to clean-up, concentrated crude extracts were applied to basic alumina column. The EROD activities of extracts in the H4IIE cells were from 1.91 ±0.32 ng-TEQ/g to 24.54 ±3.48 ng-TEQ/g of biochemical-TEQ value. In soil samples, CYP1A catalytic activity was 0.09~0.64 ng-TEQ/g. EROD bioassay, seems to be a useful short-term bioassay when information about the biological response of complex environmental samples is needed. Although further study is needed, these results indicate that the potent toxic emissions are produced from school waste semi-incinerators.

키워드

EROD-microbioassay H4IIE School waste semi-incinerator Fire residues Biochemical-TEQ