期刊
ENVIRONMENT INTERNATIONAL
卷 46, 期 -, 页码 50-62出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.envint.2012.04.013
关键词
Organic micropollutant; Coastal seawater; River input; WWTP effluent; Principal Component Analysis; Risk quotient
资金
- Spanish Ministerio de Educacion, Ciencia e Innovacion [CTM 2008-03263/TECNO]
- Catalan Water Agency (Agenda Catalana de l'Aigua)
- European Social Fund of the Agency for Administration of University and Research Grants (AGAUR - Generalitat de Catalunya, Spain) [FI-DGR 2010FI_B 00525, 2011FI_BI 00178]
This study provides a first estimation on the sources, distribution and risk of organic micropollutants (OMPs) in coastal waters from NW Mediterranean Sea. Polycyclic aromatic hydrocarbons, polychlorinated biphenyls, organochlorinated pesticides, polybrominated diphenyl ethers, phthalates and alkylphenols were analyzed by solid phase extraction and gas chromatography coupled to tandem mass spectrometry (SPE-GC-EI-MS/MS). River waters and wastewater treatment plant effluents discharging to the sea were identified as the main sources of OMPs to coastal waters, with an estimated input amount of around of 25,800 g d(-1). The concentration of OMPs in coastal areas ranged from 17.4 to 8442 ng L-1, and was the highest in port waters, followed by coastal and river mouth seawaters. A summarized overview of the patterns and sources of OMP contamination on the investigated coastal sea waters of NW Mediterranean Sea, as well as of their geographical distribution was obtained by Principal Component Analysis of the complete data set after its adequate pretreatment. Alkylphenols, bisphenol A and phthalates were the main contributors to Sigma OMPs and produced an estimated significant pollution risk for fish, algae and the sensitive mysid shrimp organisms in seawater samples. The combination of GC-MS/MS, chemometrics and risk analysis is proven to be useful for a better control and management of OMP discharges. (C) 2012 Elsevier Ltd. All rights reserved.
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