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| 생태독성학적 시험× | 중금속 화학종 분석(Heavy Metal Speciation)× | |
|---|---|---|
| 분야 | 환경공학 | 환경공학 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1975 | 1979 |
| 창시자≠ | EPA and OECD | Tessier and hydrogeochemists |
| 유형≠ | experimental measurement and analysis pipeline | analytical and geochemical modeling pipeline |
| 원전≠ | OECD. (2011). Test Guidelines for Chemicals. OECD Publishing. link ↗ | Tessier, A., Campbell, P. G. C., & Bisson, M. (1979). Sequential Extraction Procedure for the Speciation of Particulate Trace Metals. Analytical Chemistry, 51(7), 844–851. DOI ↗ |
| 별칭 | toxicity testing, aquatic bioassay, ecotoxicity assessment, organism exposure testing | metal speciation, metal partitioning, bioavailability assessment, speciation analysis |
| 관련 | 3 | 3 |
| 요약≠ | Ecotoxicological testing is a suite of standardized laboratory and field methods to assess the toxicity of chemical substances to aquatic and terrestrial organisms (fish, invertebrates, algae, plants, soil fauna). Developed by regulatory agencies (OECD, EPA, EMEA) since the 1970s, these tests measure lethal concentration (LC50, EC50) and sublethal endpoints (growth, reproduction, behavior) under controlled conditions. Ecotoxicological data support chemical hazard classification, environmental risk assessment, and regulatory approval of new substances. | Heavy metal speciation is the analytical and geochemical determination of the chemical forms (species) and partitioning of toxic metals (lead, cadmium, chromium, zinc, copper) in soil, sediment, and water. Metal bioavailability—the fraction accessible to organisms—depends critically on speciation: metal bound to soil organic matter or iron oxides is immobile and non-bioavailable; dissolved or exchangeable metal is highly bioavailable and toxic. Speciation assessment informs remediation design, risk assessment, and contaminant fate prediction. |
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