Selenium is a chemical element with major environmental implications, due to the extremely
narrow range between essential and toxic concentrations. Volcanoes emit significant …

Water quality is closely associated with human health and socio-economic sustainable
development. With the increasingly intensive anthropogenic activities, pollutants especially …

Heavy metal (loid) s accumulation in groundwater has posed serious ecological and health
concerns worldwide. Source-specific risk apportionment is crucial to prevent and control …

In this paper we analyze the main available data related to the geothermal system of Ischia
Island, starting from the first geothermal exploration in 1939. Our aim is to define a …

Arsenic (As) is a metalloid element (atomic number 33) with one naturally occurring isotope
of atomic mass 75, and four oxidation states (-3, 0,+ 3, and+ 5)(Smedley and Kinniburgh …

In a volcanic-sedimentary aquifer in central Italy, we investigate the co-existence of arsenic
and fluoride in groundwater, aiming at identifying the most probable processes deductible at …

The Yangyi geothermal field, located 72 km northwest to Lhasa City, capital of Tibet, has a
high reservoir temperature up to at least 207.2° C. The geothermal waters from both …

Self-supplied wells, an important water resource in remote and scattered regions, are
commonly deteriorated by environmental pollution and human activity. In this study, 156 self …

The presence of high concentrations of geogenic arsenic (As) in groundwater poses a
serious threat to the health of millions of individuals globally. This paper examines the …

Polyaluminum chloride (PACl) is a well-established coagulant in water treatment with high
removal efficiency for arsenic. A high content of Al30 nanoclusters in PACl improves the …