Determination of the aquatic PNEC0.05 for boron.

摘要: Several weight of the evidence approaches for effects assessment boron to aquatic organisms have been conducted. The focal point all these assessments is appropriate interpretation LC1 rainbow trout (Oncorhynchus mykiss) from W.J. Birge, J.A. Black, Report No. EPA5601176408. Environmental Protection Agency, Office Toxic Substances, Washington, DC, 1977, as their studies provided lowest chronic toxicity values boron. Other by investigators (W.J. Completion prepared Procter & Gamble Company, Cincinnati, USA, 1981; A.G. Westermann, T.M. Short, S.B. Taylor, M.C. Parekh. 1984; J.B. Barnum, Chemosphere 26 (1993) 1383-1413) further indicate this species be particularly sensitive While necessary diverse risk needs, they each suffer potential bias via professional judgment. In order allay issues and update boron, a probabilistic approach was used. Raw data Birge Black were reanalyzed generate representative adverse threshold (e.g., LC10) several species. A comprehensive list other combined into cumulative probability term, allowing determination fifth percentile protection value, or PNEC0.05. PNEC0.05 determined at least 1.3 mg B/l.