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NTIS 바로가기대한환경공학회지 = Journal of Korean Society of Environmental Engineers, v.31 no.12, 2009년, pp.1151 - 1160
손희종 (부산광역시 상수도사업본부 수질연구소) , 유수전 (부산광역시 상수도사업본부 수질연구소) , 노재순 (부산광역시 상수도사업본부 수질연구소)
Perfluorinated compounds (PFCs) have been recognized as emerging environmental pollutants and are widely distributed all over the world. These compounds are hardly degradable and cause bioaccumulation and biomagnification during present for a long time in the environment: thereby after adversely bio...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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PFCs는 어떤 용도로 사용되는가? | PFCs는 소수성(hydrophobic) 및 소유성(lipophobic)을 가지는 특성으로 인해 산업적으로 매우 다양한 용도로 사용되고 있는 물질로 중합체 첨가물, 방화제, 방오제, 반도체 세척용제, 계면활성제, 살충제, 윤활제, 페인트, 광택제, 식품포장재, 난연성 보온재, 부식억제제, 필름 등의 감광코팅제, 샴푸 및 개인위생용품 등 그 용도는 헤아릴 수 없을 만큼 다양하다.12,13) PFCs는 전 세계적으로 광범위하게 사용되어져 오면서 우리가 생활하는 환경중으로 상당량이 유출되었고13,14), 그 결과 전 세계적으로 급속히 퍼지는 결과를 초래하였다. | |
환경중으로 유출된 PFCs가 상당한 기간 환경중에서 그들이 가지는 독성을 유지하며 잔류하는 특성은 무엇에 의해 유발되는가? | 7,15) 또한, PFCs는 일반적인 환경조건에서는 안정한 상태로 존재하며, 특히 PFOA와 PFOS는 가수분해, 광분해 및 생물분해에 대해 내성을 가지며16), 자연 상태에서의 반감기 (half-life)가 41년 이상으로 보고되고 있다.17) 따라서 환경중으로 유출된 PFCs는 상당한 기간 환경중에서 그들이 가지는 독성을 유지하며 잔류하며, 이러한 특성은 다중의 탄소-불소결합들에 의해 발생하는 안정화에 의해 유발된다.18) Table 1에 과불화 화합물들의 구조 및 화학적 특성을 나타내었다. | |
과불화 화합물들은 무엇의 원인 물질인가? | 전세계적으로 과불화 화합물들에 의한 오염은 심각한 수준에 도달해 있다. 이들은 난분해성으로 환경에 장기간 머물며 생물축적 (bioaccumulation) 및 생물확대 (biomagnification)의 원인 물질로 인간과 동물들에게 심각한 피해를 유발한다. 또한, 이들은 광분해, 생물분해 및 화학적인 분해에도 매우 큰 내성을 가지고 있기 때문에 상 하수 처리공정에서 과불화 화합물에 대한 제거율이 낮다. |
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