Dragon K.
Impact of human activity on groundwater chemistry
(Wielkopolska region, Poland)
The article identifies the effects of human activity on
groundwater chemistry in the regional aquifer system located in the
Wielkopolska region (western Poland). It was documented using statistical
methods, that the main process influencing the groundwater chemistry is
connected to contamination. The impact of contamination is evident in regions
without sewers and where the aquitard is relative thin. Chloride and
sulphatewere found most influenced by pollution from surface sources. Total
hardness is also sensitive, but its behavior is controlled by geogenic
processes as well. Factor analyses are a reliable tool for recognizing
contamination’s impact on groundwater chemistry, especially for cases with a
relatively low contamination level, when contamination is related to natural
occurring water components. This research is important for implementing
groundwater protection plans at the regional scale. These interpretations may
be used to manage water resources better at the regional scale.