乌尔夫特水库污染历史的重建:有机地球化学调查

IF 6 3区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Christina A. Schwanen, Georg Stauch, Philipp Schulte, Jan Schwarzbauer
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引用次数: 0

摘要

背景利用水生沉积档案重建污染历史不仅对现在和过去,而且对未来的行动都具有重要意义。过去人为排放的程度和影响可以与特定地点(如工业)的发展以及政治行动、法规和倡议联系起来。最后,可以确定是否需要进一步限制、具体监测或采取其他对策。因此,在本研究范围内,对水下沉积物的钻孔岩芯进行了全面分析,以重建 Urft 水库的污染历史,并了解不同有机污染物的引入、归宿和行为之间的联系。此外,特定的输入因素及其发展(如工业生产)很容易与水库检测到的排放曲线相关联。总之,获得了 60 多种亲脂性有机化合物的定量数据,并可追溯到城市和工业排放。浓度主要在 ng/gTOC-µg/gTOC 范围内,显示出向地表递减的趋势,从而表明政治法规的有效性。此外,在 20 世纪 70 年代末/80 年代初,几乎所有物质都检测到了一个明显的最大值,这可能与洪水等特殊事件或影响城市和工业废水相关化合物的故障有关。总体而言,有机指标已被证明非常有助于获取有关分布模式以及工业和政府行为影响的信息。例如,在已确定的排放模式中,可以看到集水区的具体发展情况,如炼铁厂的关闭。总体而言,在过去的 50 年中,水库沉积物的污染有所减少,这清楚地表明了环境意识的提高和相应法规的有效实施。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Reconstruction of the pollution history of the Urft reservoir: an organic-geochemical investigation

Reconstruction of the pollution history of the Urft reservoir: an organic-geochemical investigation

Background

The reconstruction of the pollution history using aquatic sedimentary archives is of major relevance not only for the present and past, but also for future actions. The extent and influence of past anthropogenic emissions can be correlated with site-specific (e.g., industrial) developments as well as political actions, regulations, and initiatives. Finally, the need for further restrictions, specific monitoring or other countermeasures can be defined. Accordingly, within the scope of this study, a drilling core of subaquatic sediment was comprehensively analyzed to reconstruct the pollution history of the Urft reservoir and to understand the linkage between introduction, fate, and behavior of different organic pollutants.

Results

The Urft reservoir is well suitable for pollution reconstruction as the investigated interval covered a period of nearly 60 years of undisturbed sedimentation of fine-grained material. Additionally, specific input factors and their development (e.g., in industrial production) could be easily correlated with the emission profile detected for the reservoir. Overall, quantitative data of more than 60 lipophilic organic compounds were obtained and traced back to urban and industrial emissions. Concentrations were mainly in the range of ng/gTOC–µg/gTOC showing a decreasing tendency toward the surface and, thus, the effectiveness of political regulations. In addition, a clear maximum was detected for almost all substances at the end of the 1970s/beginning of the 1980s, probably related to an exceptional event such as a flood or a malfunction affecting wastewater-related compounds of both urban and industrial origin.

Conclusions

Based on the organic-geochemical investigation and the associated dating, it was possible to reconstruct the pollution history of the Urft catchment in the northern Eifel mountains. Overall, organic indicators have proven to be very useful to obtain information on distribution patterns and the influence of industrial as well as governmental actions. For instance, catchment-specific developments such as the closure of ironworks were recognizable in the identified emission patterns. Generally, in the last 50 years, the pollution of the reservoir sediment has decreased clearly showing the efficiency of increasing environmental awareness and corresponding regulations.

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来源期刊
Environmental Sciences Europe
Environmental Sciences Europe Environmental Science-Pollution
CiteScore
11.20
自引率
1.70%
发文量
110
审稿时长
13 weeks
期刊介绍: ESEU is an international journal, focusing primarily on Europe, with a broad scope covering all aspects of environmental sciences, including the main topic regulation. ESEU will discuss the entanglement between environmental sciences and regulation because, in recent years, there have been misunderstandings and even disagreement between stakeholders in these two areas. ESEU will help to improve the comprehension of issues between environmental sciences and regulation. ESEU will be an outlet from the German-speaking (DACH) countries to Europe and an inlet from Europe to the DACH countries regarding environmental sciences and regulation. Moreover, ESEU will facilitate the exchange of ideas and interaction between Europe and the DACH countries regarding environmental regulatory issues. Although Europe is at the center of ESEU, the journal will not exclude the rest of the world, because regulatory issues pertaining to environmental sciences can be fully seen only from a global perspective.
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