EQC 모델을 이용한 벤조일 퍼록사이드의 다매체 환경거동 예측

Estimation of Multimedia Environmental Distribution for Benzoyl peroxide Using EQC Model

  • 김미경 (국립환경과학원 환경노출평가과) ;
  • 배희경 (국립환경과학원 환경노출평가과) ;
  • 송상환 (국립환경과학원 환경노출평가과) ;
  • 구현주 (국립환경과학원 환경노출평가과) ;
  • 김현미 (국립환경과학원 환경노출평가과) ;
  • 최광수 (국립환경과학원 환경노출평가과) ;
  • 전성환 (국립환경과학원 환경노출평가과) ;
  • 이문순 (국립환경과학원 환경노출평가과)
  • Kim, Mi-Kyoung (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Bae, Hee-Kyung (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Song, Sang-Hwan (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Koo, Hyun-Ju (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Kim, Hyun-Mi (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Choi, Kwang-Soo (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Jeon, Sung-Hwan (National Institute of Environmental Research, Environment Exposure Assessment Division) ;
  • Lee, Moon-Soon (National Institute of Environmental Research, Environment Exposure Assessment Division)
  • 발행 : 2005.10.31

초록

벤조일 퍼록사이드는 수서생물에 대해 매우 높은 독성을 나타냄에도 불구하고 환경 중 잔류 농도 및 노출영향에 대해 연구가 이루어지지 않아 OECD에서 추천하고 있는 대표적인 다매체 환경거동 모델인 EQC 모델을 이용하여 본 물질에 대한 환경중의 농도를 예측하고 위해성평가 및 화학물질의 관리를 수행하기 위한 기초자료로 활용코자 하였다. 평형, 정상상태에서 100,000 kg의 벤조일 퍼록사이드가 환경내로 유입된 상태를 나타내는 Level I과 평형, 정상상태 이류와 분해현상이 있고 일정한 속도 1,000 kg/h로 유입되었을 경우를 나타내는 Level II에서 벤조일 퍼록사이드는 주로 토양(68.3%)과 물(28.7%)로 배출되는 것으로 예측되었다. 비평형, 정상상태, 이류와 분해현상이 있고 다매체 이동을 하는 시스템에서 벤조일 퍼록사이드가 대기, 물, 토양, 침전물의 각각의 4개 매체에 연속적으로 1,000 kg/h로 유입될 경우인 Level III에서는 주로 토양(99.9%)으로 배출되었고 전체 잔류시간은 3.4년으로 예측되어 벤조일 퍼록사이드가 환경 중에 잔류성이 있는 물질로 평가되었다.

Benzoyl peroxide is very toxic to aquatic organisms but environmental concentration or exposure effects were not studied. Distribution of the chemical among multimedia environment was estimated using EQC(Equilibrium Criterion) model based on the physical-chemical properties to evaluate the risk of benzoyl peroxide in environment. Level I describes a situation that 100,000 kg of benzoyl peroxide is emitted into the environment which is equilibrium and steady-state without degradation and advection condition. Level II describes a situation that a constant rate of 1,000kg/h of benzoyl peroxide is continuously discharged into the environment which is equilibrium and steady-state with degradation and advection condition. Level III describes a situation that 1,000 kg/h of benzoyl peroxide is continuously introduced in each air, water, soil, and sediment compartment which are non-equilibrium and steady-state with degradation, advection, and inter-media transfer condition. In Level I and II calculations the chemical was distributed to soil(68.3%) and water(28.7%). In Level III calculation it was primarily distributed to soil(99.9%) and overall residence time was estimated to be 3.4 years. Benzoyl peroxide can be persistent in environment.

키워드

참고문헌

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