Resta molto alto anche in Lombardia il livello delle polveri fini: le centraline hanno rilevato valori almeno tre volte superiori in tutte le province, con l'esclusione di quella di Sondrio e un massimo in quella di Como.
Nel capoluogo lariano sono stati misurati 213 microgrammi al metro cubo, 50 sopra il limite, mentre nel centro di Milano si è saliti a 159. A Cremona, nei primi 25 giorni di gennaio sono stati registrati 20 sforamenti (ne sono permessi 35 all'anno).
La qualità dell'aria, non molto migliore neppure in Piemonte, Veneto ed Emilia-Romagna, dovrebbe migliorare sensibilmente con l'arrivo della pioggia, atteso per giovedì.
ANSA/dg
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