期刊
MARINE POLLUTION BULLETIN
卷 85, 期 2, 页码 710-719出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2014.01.022
关键词
Surfactants; Pharmaceuticals; Seawater; Wastewater; Sediments; Tide
资金
- ICREA Funding Source: Custom
This work deals with the environmental distribution of nonionic surfactants (nonylphenol and alcohol ethoxylates), their metabolites (NP, nonylphenol; NPEC, nonylphenol ethoxycarboxylates; and PEG, polyethylene glycols) and a selection of 64 pharmaceuticals in the Long Island Sound (LIS) Estuary which receives important sewage discharges from New York City (NYC). Most target compounds were efficiently removed (>95%) in one wastewater treatment plant monitored, with the exception of NPEC and some specific drugs (e.g., hydrochlorothiazide). Concentrations of surfactants (1.4-4.5 mu g L-1) and pharmaceuticals (0.1-0.3 mu g L-1) in seawater were influenced by tides and sampling depth, consistent with salinity differences. Surfactants levels in suspended solids samples were higher than 1 mu g g(-1), whereas only most hydrophobic or positively charged pharmaceuticals could be found (e.g., tamoxifen, clarithromycin). Maximum levels of target compounds in LIS sediments (PEG at highest concentrations, 2.8 mu g g(-1)) were measured nearest NYC, sharply decreasing with distance from major sewage inputs. (C) 2014 Elsevier Ltd. All rights reserved.
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