ENVIRONMENTAL RISKS OF MICRO-CONTAMINATION OF THE ENVIRONMENT WITH TETRACYCLINE

Abstract

Review of environmental risks associated with the use of tetracycline. Micro-contamination with tetracycline has both medical risks associated with the manifestation of antibiotic resistance in bacterial communities, and environmental risks associated with changes in the transformation of substances in ecosystems and the impact on biodiversity by inhibiting certain species of plants, animals and microorganisms.Micro-contamination with tetracycline antibiotics entails a number of environmental risks. Due to the widespread use, the spread of tetracycline antibiotics in the environment has a global scale. The effect of tetracycline is observed in many objects. The spread of tetracycline is promoted by veterinary use, both directly and as a result of the use of animal waste as fertilizers for agricultural crops and pastures. As a result of the study, the following possible environmental consequences of micro-contamination of the environment with tetracycline were identified:1. Disruption of the work of bacteria included in the bacterial complex of activated sludge at sewage treatment plants using this technology, as well as during composting and affecting the processes of denitrification;2. Impacts on soil microbial communities by suppressing a number of processes of substance biodegradation and changing the biodiversity of microorganisms;3. The risks of micro-contamination of plant communities with tetracycline coming from organic fertilizers are associated with the inhibition of a number of root nutrition processes, species-specific for different crops;4. Microcontamination of marine communities with tetracycline is primarily associated with the impact on producers - algae and cyanobacteria, inhibiting their growth. And secondly, to the subsequent food chains by bioaccumulation in the tissues of vertebrates;5. The toxic effect of small doses of tetracycline from the soil on certain invertebrate species has been shown.