Abstract
Leaching of biocides from façade coatings attracts more and more attention within recent years. In-can as well as film preserving biocides are added to polymer resin based renders and paints in order protect from microbial spoilage. However, several studies revealed that biocides leach from the façade coating and can be detected in urban stormwater runoff.
The present study focussed on the occurrence of biocides in the aqueous environment - both urban water close to the sources as well as further away in fresh and marine waters. In addition, monitoring the stomwater run-off from a suburban catchment was performed in order to get knowledge about emission rates and processes. A first estimation of the leachability of a biocide is usually done using its octanol-water partition constant as well as water solubility. The present study introduces the possiblity of using the polyacrylate-water partitioning constant in comparison to render-water distribution constants. This was done based on the hypothesis that the render-water distribution constant can be described as the sum of the partitioning to polyacrylate, carbonates, sand particles and other render ingredients.
The present study focussed on the occurrence of biocides in the aqueous environment - both urban water close to the sources as well as further away in fresh and marine waters. In addition, monitoring the stomwater run-off from a suburban catchment was performed in order to get knowledge about emission rates and processes. A first estimation of the leachability of a biocide is usually done using its octanol-water partition constant as well as water solubility. The present study introduces the possiblity of using the polyacrylate-water partitioning constant in comparison to render-water distribution constants. This was done based on the hypothesis that the render-water distribution constant can be described as the sum of the partitioning to polyacrylate, carbonates, sand particles and other render ingredients.
Originalsprog | Engelsk |
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Titel | Setac Europe 25th Annual Meeting: Abstract Book |
Forlag | Society of Environmental Toxicology and Chemistry |
Publikationsdato | maj 2015 |
Status | Udgivet - maj 2015 |
Begivenhed | SETAC Europe 25th Annual Meeting: Environmental protection in a multi-stressed world: challenges for science, industry and regulators - Barcelona, Spanien Varighed: 3 maj 2015 → 7 maj 2015 Konferencens nummer: 25 |
Konference
Konference | SETAC Europe 25th Annual Meeting |
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Nummer | 25 |
Land/Område | Spanien |
By | Barcelona |
Periode | 03/05/2015 → 07/05/2015 |
Emneord
- Leaching of Biocides
- Polymer Resin Based Renders
- Urban stormwater runoff