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Distribution characteristics of nonylphenol in Taiyuan Xiaodian sewage-irrigated soil |
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Abstract The distribution characteristics of nonylphenol (NP) in sewage-irrigated soils were investigated in Xiaodian, Taiyuan city. The results showed that NP was ubiquitous in sewage-irrigated soil, and the concentration of NP in soils was as the following order: sewage-irrigated area > transition area > groundwater-irrigated area. Generally, NP content decreased as the distance from the drainage increased formed and presented positive correlation with the content of total organic content (TOC) but a negative correlation with pH value. In borehole sediments, the deeper sampling depth, the lower NP content, until another enrichment layer occurred, which indirectly implied the irrigation history and the migration capacity of NP towards deeper soiland was relative to the soil characteristics.
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Received: 18 March 2014
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