Assessment of Arsenic Content in the Elements of the Man-General Ecosystem of the Gold Deposit

Abstract— Based on the assessment of the As content in the elements of the geotechnological zone of the Tokur gold ore deposit, it was revealed that the As content in natural soils exceeds the MPC by 17–19 times; technogenic soils are significantly enriched in As (CC = 114–388). In natural surface watercourses, the As content is consistently higher than the world average. The water streams draining technogenic soils contain As concentrations that are several times higher than the MPC. In the plant biomass from the technozone, As concentrations are recorded, which are 2–8 times higher than the plant clarke. Common wormwood and riverine horsetail are characterized as hyperaccumulating plants of As, shrub alder, poplar and plantain are characterized as accumulators of As.