winnera
Forum Senior
Topics: 21
Posts: 86
|
which uv rays cause more damage ? a or b?
so far as i recall it is b? right?
cos' not very sure
|
| sigh
Forum Guru
Topics: 36
Posts: 461
|
There is a question in USMLE Q-bank...So, I just looked at my notes...you are right.
There are UVB (290-320 nm wavelength)- sunburn, immunosupression, ca, skin aging and UVA(320-400) contribute a little for sunburn, there are UVA1 and UVA2.
The question was about sun screen. For UVB- PABA esters, for UVA- avobenzone, for both- use Zn-containing
UVB---Bad
UVA---Avobenzone
|
| winnera
Forum Senior
Topics: 21
Posts: 86
|
thnx sigh
|
| DadooKhan
Forum Junior
Topics: 11
Posts: 50
|
FYI, if I recall correctly:
UVC is the worst of all -- but Ozone blocks it out
|
|
| |
| | | | |
Similar forum topics