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EC number: 618-882-6
CAS number: 928771-01-1
Testing of terrestrial toxicity does not appear scientifically
Due to high lipophilicity of NExBTL renewable diesel, sediments
and soils are the target compartments for the test material when
released into environment, however due to rapid biodegradation this risk
may be mitigated significantly.
According to chemical safety assessment, NExBTL renewable diesel
does not pose a risk to other compartments (water/sediment). It was not
found to be acutely toxic to any of the aquatic species tested (algae,
crustacea, fish and sediment-dwelling amphipod). In an acute toxicity
test with a sediment-dwelling amphibod Corophium volutator, the
LC50 of the test material was 1200 mg/kg (d.w.), which equals 3000 mg/l
(calculated with density of the solids obtained from the Table R.16
-16). The NOEC was 373 mg/kg (d.w.), equivalent to 933 mg/l.
Furthermore, the test material was found readily biodegradable in an
OECD 301B CO2evolution test.
Numerous studies have also shown that alkanes are readily
biodegradable in soils and sediments (Hoeppel RE et al 1991,
Hawle-Ambrosch et al 2007, Miethe D et al 1994, Salanitro J 2001,
Sugiura et al 1996). Also, experimental results indicated that
n-C10-C20-alkanes did not have adverse effects on the growth of corn Zea
maysand red beans Phaseolus nipponesi (Baek et al., 2004).
The only use that may lead to soil exposure is in tarmac
(SU8/PC9b/PROC23/ERC8e) and this use is infrequent. Based on these
facts, the expected soil exposure will be occasional, duration of the
exposure will be short and the effects to soil organisms will be low.
Since biodegradability of compounds is assumed more rapid in soils
compared to anaerobic and low temperature sediments (half-lives were
estimated 1000 times higher in sediments than in soils using EUSES), the
exposure time and thus the risk posed by the test material to the
organisms is likely to be lower in soils than in sediments.
Mammalian toxicity testing indicated that NExBTL renewable diesel
has a low potential to cause adverse long-term or reproductive effects.
Based on this fact, in addition to low bioavailability via food chain,
NExBTL renewable diesel is not expected to cause toxic effects to birds.
Baek et al, 2004, Effects of crude oil components, oil components
and bioremediation on plant growth, Journal of Environmental Science and
Health A39(9): 2465-2472.
Hawle-Ambrosch E, Ripe W, Dornmayr-Pfaffenhuemer M, Radax C,
Holzinger A and Stan-Lotter H, 2007, Biodegradation of fuel oil
hydrocarbons by a mixed bacterial consortium in sandy and loamy soils,
Biotechnology Journal 2(12), 1564-1568.
Hoeppel RE, Hichee RE and Arthur MF, 1991, Bioventing soils
contaminated with petroleum hydrocarbons. J. Indust. Microbiol. 8,
Miethe D, Riis V and Babel W, 1994, The relationship between the
microbial activity of the autochthonous microorganisms of pristine and
contaminated soils and their potential for the degradation of mineral
oil hydrocarbons. Acta Biotechnol. 14,131-140.
Sugiura K, Ishihara M, Shimauchi T and Harayama S, 1997,
Physicochemical properties and biodegradability of crude oil
Environmental Science and Technology 31(1), 45-51.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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