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首页> 外文期刊>Science of the total environment >Identification of selected organic contaminants in streams associated with agricultural activities and comparison between autosampling and silicone rubber passive sampling
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Identification of selected organic contaminants in streams associated with agricultural activities and comparison between autosampling and silicone rubber passive sampling

机译：识别与农业活动相关的河流中选定的有机污染物，并进行自动采样与硅橡胶被动采样之间的比较

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摘要

This study evaluates the potential of silicone rubber passive sampling devices (SR-PSDs) as a suitable alternative to automatic water samplers (autosamplers) for the preliminary identification of a wide range of organic contaminants in freshwater systems. The field performance of SR-PSDs deployed at three sites on two streams of an agricultural catchment area in North East (NE) Scotland, United Kingdom (UK) was assessed concurrently with composite water samples collected from two of the sites using autosamplers. The analytical suite consisted of selected plant protection products (PPPs; commonly referred to collectively as 'pesticides'), including 47 pesticides and a separate sub-category of 22 acid/urea herbicides. Of these, a total of 54 substances, comprising 46 pesticides and 8 urea herbicides were detected in at least one of the SR samplers. All but 6 of these SR-PSD detected substances were quantifiable. By comparison, a total of 25 substances comprising 3 pesticides and 22 acid/urea herbicides were detected in the composite water samples, of which only 8 acid/urea herbicides were quantifiable. The larger number and chemical classes of compounds detected and quantified via passive sampling reflect the lower limits of detection achieved by this device when compared to autosamplers. The determination of dissolved concentrations of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) added to the information on contaminant pressures at each site, allowing assessment of the reliability of SR-PSDs in freshwater systems and the identification of possible contaminant sources. The study demonstrated the utility of SR-PSDs for detecting and semi-quantifying low concentrations of analytes, including those which hitherto have not been measured in the catchment area and also some pesticides that are no longer approved for agricultural use in the UK and EU. The SR-PSD approach can thus provide a better understanding and clearer picture of the use and presence of organic contaminants within catchments.
机译：这项研究评估了硅橡胶无源采样设备（SR-PSD）作为自动水采样器（autosamplers）的合适替代品的潜力，该设备可用于初步识别淡水系统中的各种有机污染物。结合使用自动进样器从两个地点采集的复合水样，同时评估了在英国东北部（NE）苏格兰农业集水区的两个溪流中三个地点部署的SR-PSD的现场性能。该分析套件由精选的植物保护产品（PPPs；通常统称为“农药”）组成，包括47种农药和22种酸/尿素除草剂的单独子类别。其中，在至少一个SR采样器中检测到总共54种物质，包括46种农药和8种尿素除草剂。这些SR-PSD检测到的物质中只有6种可以定量。相比之下，在复合水样中总共检测到25种物质，包括3种农药和22种酸/尿素除草剂，其中只有8种酸/尿素除草剂是可定量的。与自动进样器相比，通过被动采样检测和定量的化合物种类繁多和化学类别反映了此设备实现的检测下限较低。测定每个位置的污染物压力信息增加了对多环芳烃（PAHs）和多氯联苯（PCBs）的溶解浓度的确定，从而可以评估SR-PSD在淡水系统中的可靠性，并确定可能的污染源。这项研究表明，SR-PSDs可用于检测和半定量低浓度的分析物，包括迄今尚未在集水区进行测量的分析物，以及一些在英国和欧盟不再获准用于农业的农药。因此，SR-PSD方法可以更好地了解和更清晰地了解流域内有机污染物的使用和存在情况。

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  • 来源
    《Science of the total environment》 |2013年第15期|261-272|共12页
  • 作者

    Emmanuel S. Emelogu; Pat Pollard; Craig D. Robinson; Lynda Webster; Craig McKenzie; Fiona Napier; Lucy Steven; Colin F. Moffat;

  • 作者单位

    Marine Scotland Science, Marine Laboratory, P.O Box 101,375 Victoria Road, Aberdeen, AB11 9DB, UK Institute for Innovation, Design and Sustainability in Research (IDEAS), Robert Cordon University, Aberdeen, AB10 1FR. UK;

    Institute for Innovation, Design and Sustainability in Research (IDEAS), Robert Cordon University, Aberdeen, AB10 1FR. UK;

    Marine Scotland Science, Marine Laboratory, P.O Box 101,375 Victoria Road, Aberdeen, AB11 9DB, UK;

    Marine Scotland Science, Marine Laboratory, P.O Box 101,375 Victoria Road, Aberdeen, AB11 9DB, UK;

    Institute for Innovation, Design and Sustainability in Research (IDEAS), Robert Cordon University, Aberdeen, AB10 1FR. UK;

    Scottish Environment Protection Agency (SEPA), Inverdee House, Baxter Street, Aberdeen, AB10 9QA, UK;

    Scottish Environment Protection Agency (SEPA), 5 Redwood Crescent, Peel Park, East Kilbride, G74 5PP, UK;

    Marine Scotland Science, Marine Laboratory, P.O Box 101,375 Victoria Road, Aberdeen, AB11 9DB, UK Institute for Innovation, Design and Sustainability in Research (IDEAS), Robert Cordon University, Aberdeen, AB10 1FR. UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Plants protection products (PPPs); Pesticides; Polychlorinated biphenyls (PCBs); Freshwater; Polycyclic aromatic hydrocarbons (PAHs); Water quality monitoring;

    机译：植物保护产品（PPP）;农药;多氯联苯（PCB）;淡水;多环芳烃（PAHs）;水质监测;

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