In addition, UVB rays play the greatest role in causing skin cancers, including the deadly black mole form of skin cancer. According to this blog post (https://uihc.org/health-topics/what-difference-between-uva-and-uvb-rays), a number between 0-15 is given to cities and areas around ...
More than differences in the nature of clinical signs, photoaging differences can be found regarding the age of onset and the severity of damage that can be explained by the fact that UV and especially UVB rays penetrate in different amounts depending on skin color type and melanin content. ...