TY  - JOUR
AU  - Li, C.L.
AU  - Ji, R.
AU  - Schaffer, A.
AU  - Sequaris, J.M.
AU  - Amelung, W.
AU  - Vereecken, H.
AU  - Klumpp, E.
TI  - Sorption of a branched nonylphenol and perfluorooctanoic acid on Yangtze River sediments and their model components
JO  - Journal of environmental monitoring
VL  - 14
SN  - 1464-0325
CY  - London
PB  - Royal Society of Chemistry
M1  - PreJuSER-111952
SP  - 2653 - 2658
PY  - 2012
N1  - This study was financially supported by the National Natural Science Foundation of China (20977043; 20777033). Chengliang Li was supported by a scholarship from the Deutscher Akademischer Austausch Dienst (DAAD).
AB  - Many metabolites of organic surfactants such as nonylphenol (NP) and perfluorooctanoic acid (PFOA) are ubiquitously found in the environment and are toxic if not sorbed on soils and sediments. In this study, we quantified the sorption of the NP isomer with the highest endocrine activity, [4-(1-ethyl-1,3-dimethylpentyl) phenol] (NP111), and that of PFOA on Yangtze River sediments and its model components illite, goethite and natural organic matter. The sorption experiments were performed with (14)C-labeled NP111 and PFOA by batch or dialysis techniques. The results showed that the sorption isotherms of NP111 and PFOA on the sediments were fitted well by the linear adsorption model. The sorption of NP111 depended largely on the organic carbon content of the sediments. The K(OC) values of NP111 ranged from 6 × 10(3) to 1.1 × 10(4) L kg(-1) indicating that hydrophobic interaction between NP and organic carbon is the main mechanism of sorption. The sorption of NP111 on illite was poor. The sorption of PFOA on the sediments was significantly lower than that of NP111. The affinity of PFOA to adsorb on goethite was slightly higher than on the sediments, but was moderate on illite and negligible on a reference natural organic matter. Principal axis component analysis confirmed that various sediment parameters control the binding of PFOA. This analysis grouped the respective K(d) values to the contents of black carbon, iron oxides and clay, and, hence, to the specific surface area of the sediments.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:22892466
UR  - <Go to ISI:>//WOS:000309189200012
DO  - DOI:10.1039/c2em30394a
UR  - https://juser.fz-juelich.de/record/111952
ER  -