147910.fig.002a
(a)
147910.fig.002b
(b)
147910.fig.002c
(c)
147910.fig.002d
(d)
147910.fig.002e
(e)
Figure 2: Air-mass back trajectories computed from NOAA-HYSPLIT model over AA (a) on 22/6/03, (b) on 4/7/03, (c) on 14/7/03, (d) on 15/8/03, and (e) on 31/8/03.