Ultraviolet radiation increases the toxicity of pyrene, 1-aminopyrene and 1-hydroxypyrene to human keratinocytes.
Ekunwe SI, Hunter RD, Hwang HM. Ultraviolet radiation increases the toxicity of pyrene, 1-aminopyrene and 1-hydroxypyrene to human keratinocytes. Int J Environ Res Public Health. 2005 Apr; 2(1):58-62.