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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Identification of key physico-chemical properties of brominated flame retardants alternatives for the evaluation of environmental persistence

2014년 8월 23일 11시 17분 00초
ANAL1-2 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 09시 : 50분
분석화학 - Analytical Chemistry for Environmental & Forensic Sciences
저자 및
고려대학교 환경생태공학부, Korea
Flame retardants are widely used as additives to various plastic products having an effect of reducing or suppressing combustion by improving physico-chemical properties of plastic products. The use of flame retardants increased rapidly with increasing production of plastics. Recently, some brominated flame retardants, a few congeners of polybrominated diphenyl ethers (PBDEs), have been classified and banned according to the Stockholm Convention on persistent organic pollutants (POPs) because they are resistant to degradation and have long-range transport potential. After the regulation of the use of PBDEs, industry uses various alternative chemicals including other types of brominated flame retardants without rigorous evaluation of their physico-chemical properties that determine the potential of being POPs. Lack of information on their physico-chemical properties and global monitoring data makes it difficult to decide their environmental persistence. In this study, it is intended to evaluate the long-range transport potential and environmental persistence of selected alternatives using the OECD screening tool and to identify critical properties of alternatives determining their persistence. A few of alternative materials may be more environmentally persistent than BDE-47 that has been classified as POPs although the uncertainties associated with input parameters such as partition coefficients between phases. Recent sensitive techniques that can be used to determine partition coefficients was found to be useful in reducing the uncertainties in the model.