Part,  Chapter, Paragraph

1  III,    10.  3.  1|  length; UV-A (315-400 nm), UV-B (280-315 nm) and UV-C (100-
2  III,    10.  3.  1|   of the shorter wavelength UV-B and the UV-C, but the current
3  III,    10.  3.  1| increasing ground levels of UV-B. There are several factors