EFFECT OF UV-B RADIATION ON CILIATED PROTOZOA - Environmental UV Radiation: Impact on Ecosystems and Human Health and Predictive Models - page 230

Fig. 4. Dose-effect curves of the speed of F. salina cells in samples, irradiated with UV-B, UV-A and
visible light (circles), in control 1 samples, irradiated with UV-A and visible light (squares) and in
control 2 samples, irradiated with visible light only (triangles) (redrawn from ref. 19).

2,00

1,50

Velocity [relative
units]

1,00

0,50

0,00

3'45"

7'30"

B 15'

0

30'

1

2 60'

Recovery
tim e [h]

3

Exposure time [min] 120'

4

Fig. 5. 3D histogram of the speed of UV-irradiated samples of F. salina cells, as a function of both
irradiation time and time elapsed after irradiation. The x-axis represents the UV exposure time (in
minutes), the y-axis represents the recovery time (in hours), i.e. the time elapsed after the end of
irradiation and the z-axis represents the speed of a sample at (t, T), relative to the speed of the same
sample before irradiation, shown in the histogram at Recovery time = B (redrawn from ref. 19).