Noun
UV A (plural UV As)
Alternative form of UVA
UV-A (plural UV-As)
Alternative form of UVA
UV-A
The very lowest energy range of UV between 315 nm and visible light (called UV-A) is not blocked well by the atmosphere, but does not cause sunburn and does less biological damage. Source: Internet
Using a higher wavelength of 365 nm (UV-A range) causes less damage to the DNA but also produces much weaker fluorescence with ethidium bromide. Source: Internet
Ozone is transparent to most UV-A, so most of this longer-wavelength UV radiation reaches the surface, and it constitutes most of the UV reaching the Earth. Source: Internet
The UV-A irradiation and increased water temperature kill organisms in the water. Source: Internet
UV-A does not primarily cause skin reddening, but there is evidence that it causes long-term skin damage. Source: Internet
UV radiation capable of penetrating nitrogen is divided into three categories, based on its wavelength; these are referred to as UV-A (400–315 nm), UV-B (315–280 nm), and UV-C (280–100 nm). Source: Internet