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Publikationstyp
Wissenschaftlicher Artikel
Erscheinungsjahr
2018
Significance thresholds for the assessment of contaminated groundwater: perfluorinated and polyfluorinated chemicals
Significance thresholds for the assessment of contaminated groundwater: perfluorinated and polyfluorinated chemicals
Autor:innen
Herausgeber
Quelle
Environmental Sciences Europe
30 (2018), Heft 19, 20 Seiten
30 (2018), Heft 19, 20 Seiten
Schlagwörter
Grundwasser
Zitation
VON DER TRENCK, Karl Theo, Annegret BIEGEL-ENGLER und Rainer KONIETZKA, 2018. Significance thresholds for the assessment of contaminated groundwater: perfluorinated and polyfluorinated chemicals. Environmental Sciences Europe [online]. 2018. Bd. 30 (2018), Heft 19, 20 Seiten. DOI 10.60810/openumwelt-306. Verfügbar unter: https://openumwelt.de/handle/123456789/6007
Zusammenfassung englisch
Background Per- and polyfluorinated chemicals (PFC) do not occur naturally in the environment and are, therefore, of anthropogenic origin. As a consequence of their wide range of everyday applications and their extreme persistence in the environment, PFC have become ubiquitous in nature and can, therefore, be detected in groundwater as well as in many other environmental matrices. The German States' Water and Soil Consortia have compiled 'significance thresholds' (GFS) to assess groundwater contaminated with PFC. The GFS serve as criteria for the decision whether actions to remediate polluted groundwater are necessary. Thirteen of these PFC had been detected in groundwater at levels above their limit of quantitation and were assigned first priority. Results The data regarding human health effects were sufficient to derive guide values according to the criteria of the German Drinking Water Ordinance for 7 of the 13 first-priority PFC. With regard to available ecotoxicological data, predicted no-effect concentration values from official risk assessments existed for 2 of the 13 first-priority PFC. A predicted no-effect concentration for protection of the aquatic biocenosis could be derived for eight more substances. Conclusions After evaluation of data from available literature regarding both human health and ecotoxicological effects, significance thresholds ranging from 0.06 to 10.0 ng/L could be derived for 7 of the 13 priority PFC in groundwater. As a practical guide valid solely for human health-based values, a summation rule was proposed for exposures to mixtures of these seven PFC.