Sediment-porewater partition of nonylphenol polyethoxylates: field measurements from Lanzhou Reach of Yellow River, China

Archives of Environmental Contamination and Toxicology
Yong YuShugui Dai

Abstract

Nonylphenol polyethoxylates (NPnEO) and nonylphenol (NP) have drawn much environmental concern because of their weak estrogenic activities. The present study focused on the spatial distribution of NPnEO and NP in surface sediments and their corresponding porewaters along Lanzhou Reach of Yellow River, China. Long EO chain NPnEO analogs with n > 2 were not measurable in most sediment and porewater samples, so only NP, nonylphenol monoethoxylate (NP1EO) and nonylphenol diethoxylate (NP2EO) were discussed in this study. Concentrations of NP, NP1EO, and NP2EO in the sediments ranged from 61.3 to 113.9, 31.1 to 55.9, and 47.9 to 74.1 ng/g dry weight, respectively. A significant correlation (R2= 0.56, p < 0.01) was observed between NP levels and organic carbon content of the sediments, whereas no correlation was found for the more hydrophilic NP1EO and NP2EO. The concentrations of NP, NP1EO, and NP2EO in the porewaters ranged from 0.35 to 1.95, 0.06 to 0.63, and 0.08 to 0.38 microg/L. The mean in situ log K(oc) values (n = 13, S1 excluded) of NP, NP1EO, and NP2EO were 4.48, 4.94, and 5.06, respectively, which were lower than those measured in batch adsorption experiments.

References

Jul 4, 2001·Environmental Science & Technology·P L FergusonB J Brownawell
Jan 5, 2002·Environmental Science & Technology·M J La GuardiaT M Mainor
Sep 12, 2002·Environment International·Guang-Guo YingRai Kookana
Oct 17, 2002·Environmental Science & Technology·Rolf-Alexander DüringStefan Gäth
Jun 24, 2004·Chemosphere·Zhengyan LiJong-Geel Je
May 11, 2005·Archives of Environmental Contamination and Toxicology·Bing ShaoShu Tao

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Citations

Jun 6, 2009·Archives of Environmental Contamination and Toxicology·Fuhong Sun, Qixing Zhou
Sep 12, 2015·Environmental Science and Pollution Research International·Lai ZhangJianguo Liu
Mar 6, 2018·Environmental Science & Technology·Feijian MaoKarina Yew-Hoong Gin

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