Trend PM10 dal 7 all’11 febbraio 2011 in varie città

Città                 07-feb                 11-feb           Delta      %
Saronno                128                    90                 -38      -29,69
Busto                     109                    87                -22       -20,18
Gallarate                 74                    77                   3            4,05
Ferno                    102                 108                    6            5,88
Varese                     73                    86                 13           17,81

* fonte: ARPA Lombardia