888 
4. CONCLUSION 
The ENEA fluorosensor system is a reliable tool in monitoring vegetation health. It gives the opportunity to de 
tect atmospheric pollution stresses at low level of leaf damages, before irreversible structural changes, such as a 
decrease of chlorophyll content, take place. 
Fig. 5 Fluorescence intensity at 445, 690 and 740 nm vs laser energy. Laser excitation wl 308 nm. 
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