Assessment of the ecotoxicity of aqueous solutions of natural dyes used in textile dyeing technology UDC 677.027.4:504.4.054 https://doi.org/10.24412/2079-7958-2026-2-43-51… https://vestnik.vstu.by/eng/issues/vestnik-56/chemical-engineering/assessment-ecotoxicity-aqueous-solutions-natural-dyes/