Sediments as a sink for UV filters and benzotriazoles: the case study of Upper Iguaçu watershed, Curitiba (Brazil)

Environ Sci Pollut Res Int. 2017 Aug;24(22):18284-18294. doi: 10.1007/s11356-017-9472-9. Epub 2017 Jun 21.


Ingredients in home and personal care products, including UV filters and benzotriazoles, are high production volume chemicals extensively used in our daily life, despite several studies revealed their potential eco-toxicity and endocrine-disrupting capacity. Due to some features, such as high lipophilicity, low degradability, and persistence of many of these compounds, sediments can be considered a sink for them in the aquatic environment. In the present study, nine organic UV filters and three benzotriazoles were investigated for the first time in sediments from four urban rivers in Brazil. The contaminants were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The results revealed that octocrylene (OC), etylhexyl-methoxycinnamate (EHMC), benzophenone-3 (oxybenzone, BP3), and benzotriazole (BZT) were the predominant compounds adsorbed on the sediments, with concentrations ranging from 5.6 to 322.2 ng g-1 dry weight. The results reported in this work constitute the first data on the accumulation of polar benzotriazoles and lipophilic organic UV filters in sediments from Brazil.

Keywords: Benzotriazol; Iguaçu watershed (Brazil); Personal care products; Sediments; Sunscreens; adsorption.

MeSH terms

  • Brazil
  • Chromatography, Liquid
  • Environmental Monitoring
  • Geologic Sediments / analysis*
  • Sunscreening Agents / analysis*
  • Tandem Mass Spectrometry
  • Triazoles / analysis*
  • Water Pollutants, Chemical / analysis*


  • Sunscreening Agents
  • Triazoles
  • Water Pollutants, Chemical
  • benzotriazole