Biotesting of Binding Reagents for Dust Suppression on Rare Metal Tailings Waste in the Arctic Zone of the Russian Federation

The paper presents the results of environment safety assessment of Russian and foreign binding reagents (Syntex-65, Lukoil DD 3000, Voltes PP-300 and Dustbind) used for remediation of objects of accumulated environmental damage in the Murmansk region. The paper shows that in the presence of anti-erosion and water-retentive phytocenosis on technosoil of loparite ore tailings, these reagents have a partial inhibitory effect on the first first seedlings of timothy grass (Phleum pratense L.) and red fescue (Festuca rubra L.) and statistically (p <0.005) affect its main quality indicators (plant height and biomass). Effective methods of applying reagents to the dusty surface of technosoil were identified. When using the Lukoil DD 3000 reagent as an analogue of Dustbin – continuous, for Voltes PP-300 – fragmentary, when using Syntex-65 – continuous in the mode of simulated hydroseeding.