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EU-SICHERHEITSDATENBLATT Dieselkraftstoff ... - Schmierstoffe

EU-SICHERHEITSDATENBLATT Dieselkraftstoff ... - Schmierstoffe

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and appears to be an outlier. This value is not consistent with 11 other BCF values for<br />

C11-C16 methylated naphthalenes, all of which indicate that these structures are not<br />

bioaccumulative.<br />

There is some indication that selected C16 and C18 di-aromatic structures may be<br />

bioaccumulative. However, the compounds that trigger the B criterion have structural<br />

features (di-isopropyl branching, ethanediyl and bibenzyl moities) that are not typical of<br />

petroleum hydrocarbons. If data for only representative structures are considered,<br />

available data show di-aromatics exhibit a low bioaccumulation potential. This<br />

conclusion is further supported by the fact that experimental BMF values (Figure 51) for<br />

these structures are at or well below 0.1 (Figure 52). It can be concluded that based on<br />

the available data, di-aromatic hydrocarbons, as a class, are neither bioaccumulative nor<br />

very bioaccumulative.<br />

100000<br />

10000<br />

BCF (regression)<br />

1000<br />

100<br />

10<br />

DiAr<br />

B<br />

vB<br />

1<br />

5 10 15 20 25 30 35<br />

Carbon Number<br />

Figure 49. Predicted fish BCFs for di-aromatic hydrocarbons (DiAr) using the regressionbased<br />

approach in BCFBAF. B – 2000, vB - 5000<br />

49

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