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首页> 外文期刊>Journal of soil & sediments >Is the long-term application of sewage sludge turning soil into a sink for organic pollutants?: evidence from field studies in the Czech Republic
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Is the long-term application of sewage sludge turning soil into a sink for organic pollutants?: evidence from field studies in the Czech Republic

机译：污水污泥的长期应用是否会使土壤变成有机污染物的吸收池？：捷克共和国的实地研究证据

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摘要

Purpose Long-term microscale field experiments established at four sites in the Czech Republic (since 1996) were used for an assessment of the severity of the wide-scale contamination of treated soils by persistent organic pollutants (POPs) and pharmaceuticals and personal care products (PPCPs) as a result of the long-term regular pollutant load via sewage sludge and farmyard manure applications and for an estimation of the potential environmental risk caused by long-term pollutant inputs to agricultural soils.Material and methods The experimental plots were treated as follows: (i) NPK mineral fertilization (NPK); (ii) sewage sludge (SS1); (iii) sewage sludge applied at three times the rate compared to SS1 (SS2); (iv) farmyard manure (FYM); and (v) untreated control. Except for antibiotics, which showed results for all analyses below the detection limit, all groups of the analyzed compounds showed measurable contents in the treated soils.Results and discussion Among the POPs, the levels of organochlorine pesticides (OCPs) were detected at two locations at levels exceeding the Czech preventive values for their contents in agricultural soils (7.5 mu g/kg for dichlorodiphenyl trichloroethane family, 20 mu g/kg for hexachlorbenzene, and 10 mu g/kg for alpha-hexachlorocyclohexane), regardless of the treatment. Similarly, elevated contents of polycyclic aromatic hydrocarbons (PAHs) were occasionally observed without any substantial relationship to the fertilizer application scenario. Thus, these contaminants are connected with atmospheric deposition in the given areas (PAHs) and their long-term stability (OCPs) even several decades after their ban; the role of the fertilizer composition was negligible.Conclusions The levels of per- and polyfluoroalkylated substances, brominated flame retardants, and synthetic musk compounds tended to increase in the sewage sludge-treated plots, indicating that sewage sludge can contribute to the abundance of these compounds in soil, although the contaminant levels determined do not represent a direct environmental risk. The levels of these contaminants in sewage sludge and sludge-treated soils should be regularly monitored in further research.
机译：目的自1996年以来在捷克共和国的四个地点建立的长期微尺度野外实验用于评估持久性有机污染物（POPs）以及药物和个人护理产品对处理过的土壤进行大规模污染的严重性（ PPCPs）是由于污水污泥和农家粪肥应用造成的长期常规污染物负荷以及估计长期向农业土壤输入污染物造成的潜在环境风险。材料和方法：（i）氮磷钾矿物肥料（NPK）； （ii）污水污泥（SS1）； （iii）污水污泥的施用量是SS1（SS2）的三倍； （iv）农家肥； （v）未经处理的对照。除抗生素显示所有分析结果均低于检出限外，所有被分析化合物的组中均显示可测土壤中的含量。结果与讨论在持久性有机污染物中，在两个地点检测到有机氯农药（OCP）的水平。不论采用何种处理方法，其农业土壤中的含量均超过捷克预防值（二氯二苯基三氯乙烷家族为7.5μg / kg，六氯苯为20μg/ kg，α-六氯环己烷为10μg/ kg）。同样，偶尔会观察到多环芳烃（PAHs）含量升高，而与肥料施用情况没有任何实质性关系。因此，这些污染物甚至与禁令后的数十年都与给定区域的大气沉积（PAH）及其长期稳定性（OCP）有关。结论中的全氟烷基化和多氟烷基化物质，溴化阻燃剂和合成麝香化合物的水平在污水污泥处理区趋于增加，表明污水污泥可以促进这些化合物的丰度在土壤中，尽管确定的污染物水平并不代表直接的环境风险。在进一步研究中，应定期监测污水污泥和污泥处理过的土壤中这些污染物的水平。

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  • 来源
    《Journal of soil & sediments》 |2019年第5期|2445-2458|共14页
  • 作者

    Pulkrabova Jana; Cerny Jindrich; Szakova Jirina; Svarcova Andrea; Gramblicka Tomas; Hajslova Jana; Balik Jiri; Tlustos Pavel;

  • 作者单位

    Univ Chem & Technol, Dept Food Anal & Nutr, Fac Food & Biochem Technol, Tech 3, Prague 16600 6, Czech Republic;

    Czech Univ Life Sci, Dept Agroenvironm Chem & Plant Nutr, Kamycka 129, CZ-16521 Prague 6, Czech Republic;

    Czech Univ Life Sci, Dept Agroenvironm Chem & Plant Nutr, Kamycka 129, CZ-16521 Prague 6, Czech Republic;

    Univ Chem & Technol, Dept Food Anal & Nutr, Fac Food & Biochem Technol, Tech 3, Prague 16600 6, Czech Republic;

    Univ Chem & Technol, Dept Food Anal & Nutr, Fac Food & Biochem Technol, Tech 3, Prague 16600 6, Czech Republic;

    Univ Chem & Technol, Dept Food Anal & Nutr, Fac Food & Biochem Technol, Tech 3, Prague 16600 6, Czech Republic;

    Czech Univ Life Sci, Dept Agroenvironm Chem & Plant Nutr, Kamycka 129, CZ-16521 Prague 6, Czech Republic;

    Czech Univ Life Sci, Dept Agroenvironm Chem & Plant Nutr, Kamycka 129, CZ-16521 Prague 6, Czech Republic;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Farmyard manure; Long-term trial; Persistent organic pollutants; Pharmaceuticals and personal care products; Sewage sludge;

    机译：农家肥;长期试验;持久性有机污染物;药物和个人护理用品;污水污泥;

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