1 The highest monthly average temperature in Lake Las Vegas for July is 95 degrees. 2  The lowest monthly average temperature in Lake Las Vegas for December is 44 degrees.  The most monthly precipitation in Lake Las Vegas occurs in October with 0.5 inches.
Phototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system.It is a type of photosensitivity.hototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system.
A chemical or drug that causes photosensitivity is a photosensitiser. A phototoxic reaction to a photosensitiser results in an exaggerated sunburn reaction and no immune reaction is involved. A photoallergic reaction to a photosensitiser results in photodermatitis and is due to delayed hypersensitivity reaction.