Articles | Volume 25, issue 8
Hydrol. Earth Syst. Sci., 25, 4495–4512, 2021
https://doi.org/10.5194/hess-25-4495-2021
Hydrol. Earth Syst. Sci., 25, 4495–4512, 2021
https://doi.org/10.5194/hess-25-4495-2021

Research article 20 Aug 2021

Research article | 20 Aug 2021

Sources and pathways of biocides and their transformation products in urban storm water infrastructure of a 2 ha urban district

Felicia Linke et al.

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Latest update: 25 Jan 2022
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Short summary
We used a two-step approach with limited sampling effort in existing storm water infrastructure to illustrate the risk of biocide emission in a 2 ha urban area 13 years after construction had ended. First samples at a swale confirmed the overall relevance of biocide pollution. Then we identified sources where biocides were used for film protection and pathways where transformation products were formed. Our results suggest that biocide pollution is a also continuous risk in aging urban areas.