The average population of E. coli O157:H7 before UV-C treatment on apple, pear, strawberry and raspberry surfaceswas in the range of 6.0 to 6.7 log CFU/g. Upon exposure to UV-C light, a significant effect (p b 0.0001) was observed between treatments for each type of fruit (Fig. 1, Table 1). A significant reduction (p b 0.05) was achieved for an average dose of 0.14 kJ/m2 UV-C energy (with 10 s treatment time) in both apples (2.1 ± 0.4 log CFU/g reduction) and pears (1.2 ± 0.2 log CFU/g reduction). Cell numbers decreased significantly after every 20 s UV-C treatments in apples.