The article provides a general information regarding humic substances, their structure, formation and role in the environment. Humic substances increase the quality and productivity of soil by improving soil structure, water retention and ensuring constant access to the nutrients. They also block and deactivate elements and chemicals occurring in harmful concentrations. In aquatic systems they remove toxic elements, organic chemicals of anthropogenic origin and other pollutants as well as directly and indirectly affect water organisms. Additionally, humic substances and artificially produced humic products indicate plant and animal bio-stimulatory effects, due to what they are used in agriculture, pharmaceuticals and medicine.
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