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Application of δ18O-PO4 analysis to recognize phosphate pollutions in eutrophic water
Ecohydrology & Hydrobiology ( IF 2.6 ) Pub Date : 2021-07-25 , DOI: 10.1016/j.ecohyd.2021.05.005
Beata Gebus-Czupyt 1 , Bartosz Wach 1
Affiliation  

Phosphorus, like nitrogen, belongs to crucial bioelements limiting the biomass multiplication. While surplus of phosphorous in soil is beneficial for agriculture and forestry, its excess in surficial waters causes increased eutrophication, which is devastating for water quality and for ecological balance. Anthropogenic eutrophication is one of the biggest environmental problems of last decades, therefore studies which can improve the assessment of water quality are very important. In the case of phosphates, the most abundant form of phosphorus in lithosphere and hydrosphere, isotopic composition of oxygen (δ18O-PO4) could be used as a tracer of phosphorus cycling between the biomass, soils, waters and sediments. Here we present a short review of methods that allow to determine the oxygen isotopic composition in phosphates extracted from different water solutions. We also provide examples of usefulness of this research in the environmental studies. With some limitations, measurements of δ18O-PO4 could be an usefull tool to recognize the sources of phosphates and broaden understanding of processes occurring in phosphorus cycle. This knowledge is necessary to protect our drinking water resources and their revitalization.



中文翻译:

δ18O-PO4分析在富营养化水中磷酸盐污染识别中的应用

磷与氮一样,属于限制生物量增殖的关键生物元素。虽然土壤中磷的过剩对农业和林业有益,但其在地表水中的过量会导致富营养化加剧,这对水质和生态平衡是毁灭性的。人为富营养化是近几十年来最大的环境问题之一,因此研究可以改进水质评估是非常重要的。在磷酸盐的情况下,岩石圈和水圈中最丰富的磷形式,氧的同位素组成(δ 18 O-PO 4) 可用作生物量、土壤、水和沉积物之间磷循环的示踪剂。在这里,我们简要回顾了确定从不同水溶液中提取的磷酸盐中氧同位素组成的方法。我们还提供了这项研究在环境研究中的有用性的例子。由于存在一些限制,δ 18 O-PO 4的测量可能是识别磷酸盐来源和拓宽对磷循环中发生的过程的理解的有用工具。这些知识对于保护我们的饮用水资源及其振兴是必要的。

更新日期:2021-07-25
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