1. Department for Environment Food and Rural Affairs , Waste water treatment in the United Kingdom – 2012, Report No. PB13811 , 2012
2. Scotland and Northern Ireland Forum for Environmental Research , Methodology for the analysis of selected pharmaceuticals and drugs of abuse in sediments and sludge, Report No. ER09 , 2010
3. Environmental Protection Agency , Pharmaceuticals and personal care products in water, soil, sediment and biosolids by HPLC/MS/MS. Method 1694 , 2007
4. Effects of Quaternary-Ammonium-Based Formulations on Bacterial Community Dynamics and Antimicrobial Susceptibility
5. Quaternary Ammonium Biocides: Efficacy in Application