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Occurrence and Fate of Nonylphenol Ethoxylates and Their Derivatives in Nansi Lake Environments, China
Author(s) -
He Fang,
Niu Lingling,
Aya Obara,
Wang Shilong,
Wang Liguo
Publication year - 2013
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143012x13415215907211
Subject(s) - nonylphenol , effluent , sediment , environmental chemistry , chemistry , high performance liquid chromatography , wastewater , alkylphenol , sewage treatment , chromatography , environmental science , environmental engineering , geology , organic chemistry , alkyl , paleontology
The vertical and horizontal distribution of nonylphenol polyethoxylates (NPEO n , n = number of ethoxy units) and their derivatives in the Upper Nansi Lake, North China, were investigated using high‐performance liquid chromatography (HPLC) and liquid chromatography‐tandem mass spectrometry (LC‐MS/MS) methods. For the water‐phase concentrations of these compounds, data are omitted because of their low concentration levels. The content of NPEO n ( n = 1 to 15) bound onto the sediment of this lake changed in the range of 60.7 to 631.5 μg/kg dry for sediment cores with a thickness up to 350 mm. A typical increasing trend of the nonylphenol (NP) content was revealed along the water flow direction of this lake. Carbonated NPEO n (NPE n C) showed an increasing trend from upstream to downstream, with the total concentrations of the NPEO n falling in the range of 2.13 to 23.1 μg/kg dry. Results indicate that this lake received some effluent from wastewater treatment plants, whose treatment ratios are relatively low in this area. The nonoxidative hydrolytic transformation is a significant process occurring within the sediment phase of Nansi Lake.