Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Research Trends for Soil-Related Algal Toxicity

토양 관련 조류독성 연구동향

  • Nam, Sun-Hwa (Department of Environmental Science, Konkuk University) ;
  • An, Youn-Joo (Department of Environmental Science, Konkuk University)
  • Received : 2013.05.27
  • Accepted : 2013.08.29
  • Published : 2013.08.30
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Abstract

Soil ecological risk assessment requires terrestrial toxicity data based on trophic levels including plants, earthworms, nematodes, and springtails. To expand the trophic levels, it is needed to consider primary producer algae, nearly distributed in terrestrial environment, as representative terrestrial test species. In this study, we collected research cases focused on soil-related test species and exposure media from SCI papers, and analyzed exposure media, test species, test chemicals, and other test methods, for reviewing research trends of soil-related algal toxicity. Up to now, in the soil-related algal toxicity, test species were 8 cases (Pseudokirchneriella subcapitata, Chlorella vulgaris, Scenedesmus bijugatus, Chlorococcum infusionum, Scenedesmus subspicatus, Nostoc linckia, Synechococcus elongatus, and Chlorococcum sp.) and endpoints were cell count or photosynthetic pigment content. Also, 5 of exposure media were liquid medium, soil extracts, porewater, agar medium, and soil. Most of papers used algae isolated from natural soils or soil extracts. There were only one case for assessing algal toxicity in soil medium. More researches regarding algal toxicity in soil environments need to be conducted consistently.

토양 생태위해성평가는 식물류, 지렁이류, 선충류, 곤충류 등 일부 영양 단계에 국한된 토양독성자료를 활용하고 있다. 토양독성자료의 생물종 확대를 위해 토양 환경에서의 주요 생산자인 조류가 우선적으로 고려되어야 한다. 본 연구에서는 토양 관련 조류독성 연구동향을 분석하기 위해 국제 학술 논문을 대상으로 토양 관련 시험종, 노출매체 등에 초점을 맞춰 연구 사례를 수집하였으며, 시험매체, 시험종, 시험물질, 시험방법 등의 특성 중심으로 분석하였다. 현재까지 토양 관련 조류독성 연구에 사용된 생물종은 8종(Pseudokirchneriella subcapitata, Chlorella vulgaris, Scenedesmus bijugatus, Chlorococcum infusionum, Scenedesmus subspicatus, Nostoc linckia, Synechococcus elongatus, and Chlorococcum sp.)으로 제한적이고, 독성 종말점은 세포계수나 광합성 색소 측정에 국한되어 있다. 또한 노출매체는 액체배지, 토양추출액(soil extract), 토양공극수(porewater), 한천배지, 토양 등 총 5종으로, 액체배지와 토양추출액이 대부분을 차지하며, 토양에서 분리된 조류를 이용하거나 토양 추출액을 이용하는 연구가 대부분이라 토양 매체에서의 직접적인 연구는 미비하다. 따라서 토양 오염으로 인한 생태계 건강성 저하를 방지하기 위하여 필요한 생태위해성평가는 토양 매체에서의 전반적인 종 민감도 분포 파악이 선행되어야 하므로, 토양 관련 조류 시험종 및 종말점 개발이 필요하다.

Keywords

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