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The results have evidenced high levels of mercury (mean value 88.6 µg g-1), antimony (77.7 µg g-1), strontium (12,039 µg g-1) and zinc (103 µg g-1), whereas rare earth elements show levels similar to the literature data. Particular consideration is drawn for arsenic (414 µg g-1) the levels found in this paper (ranging between 1 and 5100 µg g-1) explain the high content of such element (as arsenates) in the aquifer, a big issue in this area.As part of COVID-19 consequences, it has been estimated that 5% of patients affected by this disease