Benzotriazole is considered a contaminant. This study analyzes the probable quantities that are released into the water (1).

This study demonstrated the feasibility of treating municipal wastewater with high concentrations of benzothiazole and benzotriazole in laboratory-scale membrane bioreactors and identified potential challenges for the removal of benzotriazole (2).

Benzotriazole and its associated derivatives are widely used as ultraviolet stabilizers and corrosion inhibitors. They have been extensively found in marine environments and are bioaccumulative through the food chain (3).

Bibliografia____________________________________________________________________

(1) Trček B, Žigon D, Zidar VK, Auersperger P The fate of benzotriazole pollutants in an urban oxic intergranular aquifer.  Water Res. 2018 Mar 15;131:264-273. doi: 10.1016/j.watres.2017.12.036. Epub 2017 Dec 26.

(2) Kowalska K, Felis E, Sochacki A, Bajkacz S. Removal and transformation pathways of benzothiazole and benzotriazole in membrane bioreactors treating synthetic municipal wastewater.  Chemosphere. 2019 Apr 6;227:162-171. doi: 10.1016/j.chemosphere.2019.04.037.

(3) He TT, Zhang T, Liu SB, Shi JC, Huang YS, Zheng HP, Liu WH. Toxicological effects benzotriazole to the marine scallop Chlamys nobilis: a 2-month exposure study.  Environ Sci Pollut Res Int. 2019 Apr;26(10):10306-10318. doi: 10.1007/s11356-019-04201-6. Epub 2019 Feb 13.