Patterns of distribution of polycyclic aromatic hydrocarbons in the system water–hydrobionts system of the lake Baikal

The results of model experiments designed to study the distribution patterns for polycyclic aromatic hydrocarbons (PAHs) various structures and solubility (naphthalene, anthracene, pyrene, benz(a)pyrene) in water system Lake Baikal (endemic species: freshwater sponge Lubomirskia baicalensis haric algae Nitella sp.) are presented. ability hydrobionts remove PAHs from aqueous solutions at highest rate first 2-6 hours with an efficiency up 70-95% initial content, depending on mass type organism, exposure time, hydrophobicity (solubility) compound was revealed. accumulate convert was, which indicates active participation aquatic organisms processes self-purification toxic carcinogenic compounds. use as bioindicators assessing state environment also demonstrated.