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NTIS 바로가기韓國環境保健學會誌 = Journal of environmental health sciences, v.46 no.1, 2020년, pp.1 - 10
이병우 (국립환경과학원 환경건강연구부 위해성평가연구과) , 이병천 (국립환경과학원 환경건강연구부 위해성평가연구과) , 김필제 (국립환경과학원 환경건강연구부 위해성평가연구과) , 윤효정 (국립환경과학원 환경건강연구부 위해성평가연구과)
Objectives: This study intends to evaluate the ecological risk of lead (Pb), arsenic (As), and their compounds according to the 2010 action plan on inventory and management for national priority chemicals and provide calculations of risks to the environment. By doing so, we aim to inform risk manage...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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SSD 평가를 위한 최소의 요건은 무엇인가? | 수집된 생태독성자료는 앞서 수집방법에 언급한 바와 같이 원문자료 확인 후 불확실성 자료를 제외한 결과, 납에서는 5개 분류군 5종, 비소에서는 4개 분류군 6종으로 정리되었다. ‘위해성평가의 대상물질 선정기준, 절차 및 방법 등에 관한 지침’에는 SSD 평가를 하기 위한 최소한의 요건은 생태독성 자료가 최소 4개 분류군 이상, 총 5종 이상의 자료가 충족되어져야 한다고 제시되어 있다. 따라서 지침을 근거로 납과 비소의 분류군 및 종에 대해서 SSD 평가에 최소요건을 갖춘 것으로 판단하여 실행하였다(Table 1). | |
납과 비소의 인체 축적 방식은 무엇인가? | 본 연구에서 활용되어진 납과 비소는 중금속 물질로 미국 환경청(US EPA)의 IRIS (Integrated risk information system)나 세계보건기구(WHO, World health organization)의 IARC (International agency for research on cancer)에서는 인체 발암 가능성 물질로 분류하고 있다.5-7) 일반적으로 두 물질은 공기흡입이나 먼지 등 다매체를 통해 피부 접촉, 식품섭취 및 음용수 등 다양한 노출경로를 통해 인체에 축적되고, 많은 국가에서는 수질 및 토양에 대한 환경기준을 설정하여 관리하고 있다.8-9) 화학물질등록평가법에 따라 납(CAS 7439-92-1)은 제한물질로 지정되어 있으며, 비소(CAS 7440-38-2)는 유독물질로 지정되어 있다. | |
SSD 평가에 의해 산출된 HC5 값의 정규성 검증 결과는 무엇인가? | SSD 평가에 의해 산출된 HC5 값이 정규분포를 따르는 모집단에서 취해졌는지에 대해 Anderson-Daring test를 통해 정규성 검증을 실시하였으며, 그 결과 모든 유의수준에서 정규성 수용이라는 결과를 보였다(Table 3). |
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