I valori dell’ozono, con l’aumento delle temperature in tutta la Svizzera, sono cresciuti oltre i limiti fissati a livello federale (120 microgrammi per metro cubo).
In Ticino il valore più elevato del 17 luglio alle 16 è stato misurato a Mendrisio-autostrada con 211 microgrammi. A Lugano-Università si sono raggiunti i 194 microgrammi. Valori più contenuti sono stati registrati nel Sopraceneri e nel Moesano.
Continuano a valere le raccomandazioni circa la diminuzione degli sforzi fisici all’aperto e l’invito a limitare nel limite del possibile l’uso dei veicoli privati.
Red.MM
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