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Il Laboratorio cantonale del Dipartimento della sanità e della socialità (DSS) informa che a partire da ieri, giovedì 18 giugno, sono state rilevate alcune fioriture di cianobatteri nel Lago Maggiore, in particolare nella zona di Muralto. Non è al momento escluso che il fenomeno possa interessare anche altri tratti della riva.
I primi esami svolti dalle autorità cantonali hanno indicato che la causa di queste fioriture sono cianobatteri appartenenti al genere Dolichospermum. Sono ancora in corso le analisi per valutare la presenza di eventuali tossine.
I cianobatteri possono formare ammassi visibili in superficie (“fioriture”), spesso di colore verde, azzurro-verde o brunastro. Il contatto diretto con queste fioriture può provocare irritazioni della pelle. Inoltre, in presenza di particolari tossine, l’ingestione di acqua contaminata può causare disturbi gastrointestinali. Effetti più gravi sulla salute non possono essere esclusi.
Cianobatteri e sistema di allerta, l'intervista a Mauro Veronesi
SEIDISERA 21.06.2024, 18:17
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