Screening assessment on MBMBP phenols: chapter 9

Persistence and Bioaccumulation Potential

Environmental Persistence

Experimental results indicate that MBMBP is persistent in water (CITI 1992). Predicted results indicate that MBMBP is not persistent in air (EPIsuite 2001). No experimental data were found for half-lives in soil or sediment.

Potential for Bioaccumulation

According to experimental results (OECD 2001), MBMBP is not likely to be bioaccumulative. The highest reported bioconcentration factor in this study was 125, significantly below the criterion of 5000 for bioaccumulation as specified in the Persistence and Bioaccumulation Regulations under CEPA 1999 (Canada 2000). Caution should be exercised in the interpretation of these results, however, because the study used a solubilizer to achieve MBMBP concentrations above its aqueous solubility limit, so the actual bioconcentration factor might be higher than reported.