| Abstract [eng] |
This thesis explores the critical issue of anomalous ammonium concentrations in groundwater within the Klaipėda district. Highlighting the dangers posed by ammonium pollution to human health and ecological systems, the study analyzes hydrogeochemical conditions and ammonium levels in individual boreholes across the district. The research methodology integrates a detailed assessment involving groundwater sampling, chemical analysis following the LAND 38-2000 method, and the measurement of key physico-chemical parameters, offering a comprehensive insight into the factors influencing ammonium concentration dynamics. Hydrogeochemical parameters, including temperature, dissolved oxygen levels, electrical conductivity, pH, and redox potential, were analyzed, revealing a complex chemical dynamic within the groundwater system. This study identified fluctuations in ammonium levels, with 15 boreholes presenting anomalous concentrations in previous measurements and 10 in the most recent assessments. Also, the decrease in average concentration from 1,68 mg/l to 1,10 mg/l indicates an overall improvement in groundwater quality regarding ammonium content. This research contributes valuable insights into the effects of environmental and anthropogenic activities on groundwater quality, emphasizing the need for ongoing monitoring to protect water resources. |
