Biotesting of decabromodiphenyl oxide using a multi-component test system

• Published in: Povolžskij èkologičeskij žurnal no. 2; pp. 222 - 234
• Main Authors: Erdniev, L. P., Gusev, Yu. S., Pleshakova, Y. V., Kosheleva, I. S., Kuzyanov, D. A., Mikerov, A. N.
• Format: Journal Article
• Language: English
• Published: 14.07.2024
• ISSN: 1684-7318; 2541-8963
• DOI: 10.35885/1684-7318-2024-2-222-234

   The results of biotesting of decabromodiphenyl oxide using a multicomponent test sys- tem are presented. It has been demonstrated that its aqueous solutions exhibit a reverse dose- dependent effect in stimulating the growth of colonies of the green algae Chlorella vulgaris and show no signs of toxic effects on Daphnia magna. During the thermal decomposition of decabro- modiphenyl oxide at a temperature of 400°C, a mixture of products is formed, one of which is bromine. The decomposition product is released into the air and possesses toxic properties, as evi- denced by stimulation of the growth of colonies of the green algae Chlorella vulgaris, as well as the death and growth abnormalities of Planorbis mollusk embryos. Therefore, water samples con- taining decabromodiphenyl oxide can be assessed for toxicity by biotesting methods, using cul- tures of green algae Chlorella vulgaris and 24-hour-old Planorbis embryos as test subjects. It is noteworthy that in the context of the prevailing perception of the safety of decabromodiphenyl ox- ide, based on its poor water solubility and low toxicity to biological organisms, there arises a need to study embryotoxic effects of the thermal decomposition products on both animals and humans.