납과 비소에 대한 환경매체별 생태위해성평가

• 영문명: Ecological Risk Assessment of Lead and Arsenic by Environmental Media
• 발행기관: 한국환경보건학회
• 저자명: 이병우(Byeongwoo Lee) 이병천(Byoungcheun Lee) 김필제(Pilje Kim) 윤효정(Hyojung Yoon)
• 간행물 정보: 『1. 한국환경보건학회지』제46권 제1호, 1~10쪽, 전체 10쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2020.02.28

영문 초록

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 management measures for the target chemicals. Methods: We conducted species sensitivity distribution (SSD) analysis using the collected ecotoxicity data and obtained predicted no effect concentrations (PNECs) for the in-water environment using a hazardous concentration of 5% (HC5) protective of most species (95%) in the environment. Based on the calculated PNECs for aquatic organisms, PNEC values for soil and sediment were calculated using the partition coefficient. We also calculated predicted exposure concentration (PEC) from nation-wide environmental monitoring data and then the hazard quotient (HQ) was calculated using PNEC for environmental media. Results: Ecological toxicity data was categorized into five groups and five species for Pb and four groups and four species for As. Based on the HC5 values from SSD analysis, the PNEC value for aquatic organisms was calculated as 0.40 µg/L for Pb and 0.13 µg/L for As. PNEC values for soil and sediment calculated using a partition coefficient were 77.36 and 350.50 mg/kg for Pb and 24.20 and 112.75 mg/kg for As. The analysis of national environmental monitoring data showed that PEC values in water were 0.284 µg/L for Pb and 0.024 µg/L for As, while those in soil and sediment were respectively 45.9 and 44 mg/kg for Pb, and 11.40 and 19.80 mg/kg for As. Conclusions: HQs of Pb and As were 0.70 and 0.18 in water, while those in soil and sediment were 0.59 and 0.13 for Pb and 0.47 and 0.18 for As. With HQs <1 of lead and arsenic in the environment, their ecological risk levels are found to be low.

목차

I. 서 론

II. 연구내용 및 방법

III. 결 과

IV. 고 찰

V. 결 론

키워드

Lead Arsenic Ecological risk assessment PNEC PEC