Uno studio dell'Osservatorio europeo delle droghe e delle tossicodipendenze (OEDT) pubblicato mercoledì ha analizzato la concentrazione dei residui di droga nelle acque reflue di 56 città europee. Ben cinque grandi città svizzere sono presenti nella "top ten": Zurigo al secondo posto, seguono San Gallo (4°), Ginevra (5°), Basilea (8°) e Berna (9°).
L'aumento nei dati riscontrati è stato forte tra il 2016 e il 2017 nella città di Ginevra, con una variazione del + 64%, e la crescita ha superato l'80% a San Gallo.
"Non conosciamo le ragioni precise di questo aumento - afferma Frank Zobel, vicedirettore di Dipendenza Svizzera, citato da RTS - Deve essere in parte correlato alla domanda e all'offerta, ma probabilmente anche alla purezza. In Svizzera, come in Europa, negli ultimi anni la cocaina è infatti diventata più pura ".
RTS/Bleff
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