Content

• Title and Table of Contents
• SUMMARY
• 1 INTRODUCTION
• 2 AVAILABILITY OF DATA
• Map 1: Ozone monitoring stations implemented
• 3 SUMMARY OF DATA REPORTED FOR SUMMER 1996
• Figure 2: Occurrence of exceedances (in days)
• Figure 3: Average occurrence of exceedances (in days)
• Figure 4: Frequency distribution of ozone concentrations in excess of the 180 µg/m3
• Map 2: Number of exceedances of the threshold value (urban stations )
• Map 3: Number of exceedances of the threshold value (background stations)
• 4 MAIN OZONE EPISODES
• Map 4: Example of a smog episode
• Figure 5: Qualitative overview of exceedances
• Figure 6: Example of a local ozone episode, Athens
• Figure 7: Example of a local ozone episode, Firenze
• 5 POPULATION EXPOSURE TO EXCEEDANCES
• 7 REFERENCES