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Il lago Ceresio è alle prese con una fioritura di cianobatteri (Microcystis) che si estende dal golfo di Riva San Vitale fino al Golfo di Agno. Il fenomeno, intensificatosi negli ultimi giorni, rende impossibile la balneazione in alcune spiagge a causa dell’elevata concentrazione di questi microrganismi. La loro presenza può variare rapidamente a causa di venti e correnti.
Le autorità sconsigliano il bagno in presenza di fioriture dense, sia per le persone che per gli animali. Nelle zone con presenza parziale di cianobatteri, la balneazione è sconsigliata a bambini, persone con pelle sensibile e animali.
Nei lidi sono esposti degli appositi cartelli
I Comuni e i lidi hanno esposto l’apposita segnaletica, mentre nelle spiagge sorvegliate si utilizza un sistema a bandiere per indicare il livello di pericolo.
Il sistema di segnalazione con le bandiere
Il sistema di monitoraggio cantonale prevede due livelli di allerta: moderato e elevato. In caso di rischio moderato, è possibile fare il bagno con precauzioni, mentre con rischio elevato tutti devono evitare di entrare in acqua.
SEIDISERA del 28.06.2025 - Canicola anche nei laghi, il servizio di Camilla Luzzani
RSI Info 28.06.2025, 18:24
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