Cover TEXTE
Chemicals, Water

P-Ident2 – Persistence Assessment in Surface Waters

addressing uncertainties in OECD 309 and OECD 308 studies


Plant protection products, human and veterinary pharmaceuticals, biocides and other chemicals can reach surface waters during their life cycles, by direct or diffuse entry routes or because they are in completely removed during waste water treatment. These chemicals may have harmful consequences for environmental organisms and also constitute a risk for raw water contamination for drinking water production. It is therefore crucial to assess persistence of chemicals in laboratory experiments. To characterize persistence in surface waters two test guidelines are relevant: OECD Test Guideline 308 ("Aerobic and Anaerobic Transformation in Aquatic Sediment Systems"), which aims to derive information on biotransformation at a water-sediment interface, and OECD Test Guideline 309 ("Aerobic mineralization in surface water - Simulation biodegradation test"), which measures biotransformation in a pelagic water body. The aim of the project was to be better able to separate characterizing biotransformation from the process of sorption. For this purpose, modified test designs and alternative evaluation of kinetic data were explored.

Series
Texte | 06/2023
Number of pages
251
Year of publication
Author(s)
Carolin Seller, Elizabeth Kitching, Laura Varga, Mark Honti, Kathrin Fenner
Language
English
Project No. (FKZ)
3717 65 409 0
Publisher
German Environment Agency
Additional information
PDF is accessible
File size
13287 KB
Price
0,00 €
Print version
not available
rated as helpful
60
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Tags:
 transformation  Persistenz  Oberflächengewässer  OECD 308  OECD 309