In Vulcano the sea changes color, Ingv lowered the Ph

(ANSA) – VULCANO PORTO, MAY 30 – In Vulcano, in the Aeolian Islands, the sea has changed color in the Levante area and after the first investigations by the Ingv it would be caused “by the lowering of the Ph”. The inspection was carried out by researchers from the National Institute of Geophysics and Volcanology of Catania, with a nautical vehicle for “macroscopic observations of the phenomenon, chemical-physical measurements in the field and sampling”.

“In order to protect the safety of the operators – explain the experts – the sampling concerned the sampling of seawater on the seabed near the emission sites by means of a rosette operated by the boat, as well as the sampling of bubbling gas from the surface of the water”. Gas samplings were also carried out at the thermal mud pond which had been closed for three years now due to the seizure by the Barcelona public prosecutor, following building offenses ascertained by the carabinieri of Vulcano and Milazzo, which represents the site of election for the monitoring of the hydrothermal system that feeds the degassing in the area, with the final aim of obtaining geothermal barometric information on the evolution of the geothermal system.

“The measurements in sea water – points out the Ingv – have shown a general and significant lowering of the pH in the entire stretch of sea concerned. The complete results will be reported in technical-scientific reports that will be produced in the next few days”. (HANDLE).

Source: Ansa

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