レファレンス事例詳細

以下の資料がみつかった。

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Phosphoric Acid Tributyl Ester (Tributyl Phosphate)
Chemical Abstracts Service Registry Number　126-73-8（Environment Canada　Health Canada August 2009 ）
http://www.ec.gc.ca/ese-ees/default.asp?lang=En&xml=348D65B1-66CB-5417-7B6B-7F3E39CFDBF3　（2018/01/18 確認）

カナダ環境省の中に、物質に関する説明があり、リン酸トリブチルの半減期（half-lives）に関する記述が記載されている。
以下、抜粋。
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In summary, the experimental and modelled data indicate that TBP has primary and ultimate biodegradation half-lives of <182 days, with the experimental data indicating that degradation half-lives are likely to be less than 28 days.

Based on these data and using an extrapolation ratio of 1:1:4 for a water:soil:sediment biodegradation half-life (Boethling et al. 1995), the half-life in soil is also <182 days and the half-life in sediments is <365 days. This indicates that TBP is not expected to be persistent in soil or sediment.

Based on the empirical persistence and modelled biodegradation data (see Tables 4 and 5), TBP does not meet the persistence criteria in air, water, soil or sediment (half-life in air ≥ 2 days, half-lives in water and soil ≥182 days and half-life in sediment ≥ 365 days) as set out in the Persistence and Bioaccumulation Regulations (Canada 2000).
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