Quantification of Major Inorganic Contaminants in a Mediterranean Coastal Lagoon with a Large Dystrophic Crisis

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-04-02 DOI:10.1007/s00128-024-03886-x

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Abstract

In August 2021, the Mar Menor, a saltwater lagoon located in the Region of Murcia (Spain), suffered a tragic environmental episode of dystrophic crisis and anoxia. The appearance of numerous dead fish in different areas of the lagoon over the course of days put all the authorities and the population of the area on alert. This paper shows a case study of what happened in the lagoon in terms of the presence of the most common inorganic pollutants. Measurements of the concentration of nitrogen species, phosphates and main heavy metals were carried out at different sampling sites in the Mar Menor from May 2021 to November 2022. Chemical analyses were carried out for each of the species under study. These analyses provide valuable information about the dystrophic crisis caused by a classic eutrophication process that began with the excessive nutrient input into the Mar Menor. Ion chromatography and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) were used as instrumentation for the quantification of these samples. The species whose values were greatly increased after the tragic episode described above were nitrates. The concentration varied significantly at the different sampling sites throughout the study. On the last sampling date, decreased concentrations of all the species were measured at each of the sampling sites, coinciding with the apparent good state of the lagoon.

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地中海沿海泻湖严重营养不良危机中主要无机污染物的定量分析

摘要 2021 年 8 月，位于西班牙穆尔西亚大区的梅诺尔海水泻湖（Mar Menor）发生了一起营养不良和缺氧的环境悲剧。几天来，泻湖的不同区域出现了大量死鱼，这让所有当局和该地区的居民都提高了警惕。本文从最常见的无机污染物的角度对泻湖中发生的情况进行了案例研究。2021 年 5 月至 2022 年 11 月期间，在梅诺尔湾的不同采样点对氮物种、磷酸盐和主要重金属的浓度进行了测量。对研究的每个物种都进行了化学分析。这些分析为了解梅诺尔海因营养物质输入过多而导致的典型富营养化过程所引发的营养不良危机提供了有价值的信息。离子色谱法和电感耦合等离子体质谱法（ICP-MS）被用来对这些样本进行定量分析。在上述惨剧发生后，数值大幅上升的物种是硝酸盐。在整个研究过程中，不同采样点的浓度变化很大。在最后一个采样日，每个采样点测得的所有物种的浓度都有所下降，这与泻湖明显良好的状态相吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of Environmental Contamination and Toxicology 环境科学-毒理学

CiteScore

5.60

自引率

3.70%

发文量

230

审稿时长

1.7 months

期刊介绍： The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.