The degradation products of UV filters in aqueous and chlorinated aqueous solutions

Water Res. 2012 Jun 15;46(10):3167-76. doi: 10.1016/j.watres.2012.03.057. Epub 2012 Apr 2.


Ultraviolet (UV) filters are vital constituents of sunscreens and other personal care products since they absorb, reflect and/or scatter UV radiation, therefore protecting us from the sun's deleterious UV radiation and its effects. However, they suffer degradation, mainly through exposure towards sunlight and from reactions with disinfectant products such as chlorine. On the basis of their increasing production and use, UV filters and their degradation products have already been detected in the aquatic environment, especially in bathing waters. This paper presents a comprehensive review on the work done so far as to identify and determine the by-products of UV filter photodegradation in aqueous solutions and those subsequent to disinfection-induced degradation in chlorinated aqueous solutions, namely swimming pools.

Publication types

  • Review

MeSH terms

  • Chlorine
  • Filtration*
  • Halogenation / radiation effects*
  • Photolysis / radiation effects*
  • Solutions
  • Ultraviolet Rays*


  • Solutions
  • Chlorine