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EC number: 236-675-5
CAS number: 13463-67-7
A retention of 8 % and 18 % in sand and sediment, respectively, of
[48V]TiO2 nanoparticles was observed. However,the
study has several methodological shortcomings so that reported effects
cannot be considered reliable for the risk assessment: Tests were
conducted without addition of ions, although ionic strength
significantly influences transport of TiO2 NP; all tests were conducted
in the presence of fulvic acid; TiO2 suspension was pumped through the
column instead of being applied to the surface of the test column
and irrigated with artificial rain as specified in OECD 312 ("Leaching
in soil columns"); the number of replicates is not reported.
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