UV exposure (dose)
10 ppm
100 ppm
500 ppm
1000 ppm
UV-A (1.4mW/cm
2
)
6.0
7.0
7.7
8.1
UV-B (0.4mW/cm
2
)
4.3
4.8
5.0.
5.5
UV exposure (dose)
10 ppm
100 ppm
500 ppm
1000 ppm
UV-A (1.4mW/cm
2
)
6.0
7.0
7.7
8.1
Table 5:
Inhibition zone at different concentration of Rose Bengal on
E.coli
on exposing to UV-A, UV-B and sunlight.
