Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.ecoenv.2017.07.027
Title (Primary) Contribution of waste water treatment plants to pesticide toxicity in agriculture catchments
Author Le, T.D.H.; Scharmüller, A.; Kattwinkel, M.; Kühne, R. ORCID logo ; Schüürmann, G.; Schäfer, R.B.
Source Titel Ecotoxicology and Environmental Safety
Year 2017
Department OEC
Volume 145
Page From 135
Page To 141
Language englisch
Keywords Pesticides; Waste water treatment plant; Toxic unit; Toxicity; Water quality; Monitoring
UFZ wide themes RU3;
Abstract Pesticide residues are frequently found in water bodies and may threaten freshwater ecosystems and biodiversity. In addition to runoff or leaching from treated agricultural fields, pesticides may enter streams via effluents from wastewater treatment plants (WWTPs). We compared the pesticide toxicity in terms of log maximum Toxic Unit (log mTU) of sampling sites in small agricultural streams of Germany with and without WWTPs in the upstream catchments. We found an approximately half log unit higher pesticide toxicity for sampling sites with WWTPs (p < 0.001). Compared to fungicides and insecticides, herbicides contributed most to the total pesticide toxicity in streams with WWTPs. A few compounds (diuron, terbuthylazin, isoproturon, terbutryn and Metazachlor) dominated the herbicide toxicity. Pesticide toxicity was not correlated with upstream distance to WWTP (Spearman's rank correlation, rho = − 0.11, p > 0.05) suggesting that other context variables are more important to explain WWTP-driven pesticide toxicity. Our results suggest that WWTPs contribute to pesticide toxicity in German streams.
Persistent UFZ Identifier
Le, T.D.H., Scharmüller, A., Kattwinkel, M., Kühne, R., Schüürmann, G., Schäfer, R.B. (2017):
Contribution of waste water treatment plants to pesticide toxicity in agriculture catchments
Ecotox. Environ. Safe. 145 , 135 - 141 10.1016/j.ecoenv.2017.07.027