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I corsi d'acqua svizzeri contengono meno fosfati e nitrati che nel recente passato, ma più microinquinanti, pericolosi, se non per l'uomo, per la biodiversità.
Il peggioramento delle condizioni dell'ecosistema riguarda almeno il 30% delle stazioni di misurazione; riferendosi unicamente ai pesci, la percentuale sale ulteriormente, con i due terzi degli habitat analizzati trovati in uno stato di degrado.
Sono quindi necessari interventi d'ampia portata per ripristinare la qualità, afferma l'Ufficio federale dell'ambiente che giovedì ha presentato il suo rapporto sul tema, basato su osservazioni condotte tra il 2011 e il 2014. Tra questi, il ristabilimento dello stato naturale delle aree circostanti e la loro rivitalizzazione.
ATS/dg
Dal TG20:
Fiumi svizzeri ancora troppo inquinati
Telegiornale 14.07.2016, 22:00
Dal TG12.30:
Fiumi svizzeri troppo inquinati
Telegiornale 14.07.2016, 14:30
PP 12.00 del 14 luglio 2016 Il servizio di Alessandro Veronelli
RSI Info 14.07.2016, 14:04
Contenuto audio
RG delle 12.30 del 14 luglio 2016; il servizio di Alessio Veronelli
RSI Info 14.07.2016, 14:32
Contenuto audio
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