Una zona residenziale nei pressi di Viège, in Vallese, risulta essere fortemente contaminata da mercurio. La situazione è tale da moltissimi anni, hanno spiegato martedì le autorità, ed è dovuta alla presenza di un stabilimento del gruppo chimico Lonza.
Vietato l'accesso ai parchi
L'inquinamento è stato riscontrato in dieci delle 36 parcelle di terreno controllate. L'accesso agli orti e ai parchi giochi per bambini sarà vietato fino al termine dei lavori di risanamento, ha annunciato il Cantone, che procederà ad ulteriori esami in altre zone abitate.
Non si conoscono le conseguenze sulla salute
Le conseguenze sulla salute della popolazione sono difficili da valutare: per il momento non sembrano esserci stati casi di intossicazione.
Dagli anni '30
E’ stato stabilito che nel complesso 3,1 tonnellate di mercurio hanno contaminato un canale di evacuazione di un sito della Lonza fra il 1930 e la metà degli anni '70.
ATS/cos
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