Near-surface distribution of pollutants in coastal waters as assessed by novel polyethylene passive samplers

MARINE POLLUTION BULLETIN

卷:119

Article

Aminot, Yann¹  Belles, Angel²  Alary, Claire²  Readman, James W.^1,3 

[1] Plymouth Univ, Biogeochem Res Ctr, Plymouth PL4 8AA, Devon, England

[2] Univ Lille, IMT Lille Douai, EA LGCgE Civil & Environm Engn Dept 4515, F-59000 Lille, France

[3] Plymouth Marine Lab, Prospect Pl, Plymouth PL1 3DH, Devon, England

关键词: Sea surface microlayer;    Passive sampling;    Surface enrichment;    Priority and emerging contaminants;   

DOI  :  10.1016/j.marpolbul.2017.03.022

来源: Elsevier

【 摘 要 】

We report a novel and inexpensive method to provide high resolution vertical measurements of temporally integrated organic contaminants in surface and sub-surface waters in polluted coastal environments. It employs a strip of polyethylene deployed as a passive sampler. Verifications are confirmed via conventional spot sample analyses and against Performance Reference Compound (PRC) calibration methods. Analytes targeted include 16 Polycyclic Aromatic Hydrocarbons, 15 personal care products, 8 organophosphorus flame retardants, 4 antifouling 'booster' biocides and 15 n-alkanes. Whilst all contaminants typically revealed homogeneous concentrations from 10 cm to 3 m depth in the selected harbour (<30% variations), many increased sharply at the air-sea interface. The passive sampler was shown to afford better resolution than could be achieved using conventional analytical techniques at the surface microlayer (SML). Whilst hydrophobicity appeared to be a key factor for the enrichment of many determinants, less correlation was found for the emerging contaminants. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

Free