Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 201-549-0
CAS number: 84-65-1
Eastern oysters (Crassostrea
virginica) were continuously exposed to nominal concentration of 10
and 0.75 µg/L of Anthraquinone in seawater for 17 days after which
36 oysters from each exposure level were transfer to separate
aquaria containing flowing uncontaminated seawater for a 14-day
depuration period. The concentration of Anthraquinone in the
exposure test solutions and oyster tissues were monitored on day 0
(water only) 1, 3, 7, 10, 14 and 17 of the exposure period and days
1, 3, 7 and 14 of the depuration period.
Radiometric analysis of water and
oysters tissues received the following:
1.The concentration of aqueous14C
residues in the exposure system remains relatively constant at both
treatment levels throughout the 17 -day exposure period. Result of
these analyses established mean measured exposure concentrations
(standard deviations) of 7.1 (+/-0.4) and 0.78 (+/-0.05) µg/L
Anthraquinone (Day 0 -17). Throughout the 14 day depuration period,
-residues present in the water of the depuration aquaria for both
treatment levels (10 and 0.75 µg/L, nominal) remain below the limits
of radiometric detection (2.0 and 0.19 µ g/L, respectively).
2. The concentration of14C
-residues in the tissue of oysters exposed to Anthraquinone at both
treatment level, reached steady state by day 1 of the exposure
period. The mean (95% confidence interval) steady-state
bioconcentration factor (BCF) for14C
-residues in the tissues of oyster exposed to 7.1and 0.78 µg/L
Anthraquinone (Day 1 -17) were 140X (90X - 190X) and 110X (94X -
130X) respectively. Model calculation based on mean measured
concentration of 7.1 and 0.78 µg/L Anthraquinone in the test
solutions and corresponding concentration of14C
-residues in the tissue of the exposed oysters predict a
bioconcentration factor for Anthraquinone in oysters tissue was
independent of the exposure concentration.
3. Continued elimination of14C
-residues from oysters, after exposure to both 7.1 and 0.78 µg/L
Anthraquinone, was observed throughout the depuration period.
Half-life (50% elimination) of the14C
residues present in the oysters tissue during steady state (exposure
days 1 -14) occur during the firs 24 hours of the depuration period.
After 14 days depuration, 93% and 87% elimination of14C
-residues present during steady-state had been achieved in oysters
exposed to 7.1 and 0.78 µg/L Anthraquinone respectively.
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.
За да гарантираме, че се възползвате максимално от функциите на нашия уебсайт, сме въвели „бисквитки“.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again