In addition, low prevalence of PGAs on reefs (as opposed to zero prevalence) was associated with increased frequencies of ultraviolet radiation anomalies.
The frequency of erythemal surface ultraviolet (UV) radiation anomalies were the number of times between 2000 and 2004 that the monthly average exceeded the climatological mean plus one standard deviation [42].
14, 15 Since the rate-reducing effects of lower latitude, higher ultraviolet B exposure, and higher frequency of LNP populations with some diseases are similar, we hypothesized that the combined effects of ultraviolet B exposure and LP/LNP distribution may have determined recent geographic disease patterns.
There are two kinds of ultraviolet rays?
The spectrum of frequencies of electromagnetic radiation extends from very low values over the range of radio waves, television waves, and microwaves to visible light and beyond to the substantially higher values of ultraviolet light, X rays, and gamma rays.
They need just the right amount of ultraviolet light.
And the effects of ultraviolet light on skin are cumulative.
The ultraviolet portion of the sun's rays has a bad reputation, and among the different types of ultraviolet, UVB has about the worst.
Outdoor services are submitted to an incidence of ultraviolet radiation.
