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道路盐的应用动员了从路边土壤到浅地下水的微量元素

Teresa Baraza¹, Kathryn J Cassidy¹, Elizabeth A Hasenmueller¹

¹Department of Earth and Atmospheric Sciences, Saint Louis University, St. Louis, MO 63108, United States; WATER Institute, Saint Louis University, St. Louis, MO, 63103, United States.

The Science of the total environment

|May 26, 2024

概括

道路盐脱冰动员微量元素和毒素从土壤进入水中. 城市化显著增加了地下水和土壤孔水的污染.

科学领域:

环境科学环境科学
地质化学地质化学
水文学的水文学

背景情况:

道路除冰盐可以调动土壤微量营养素和有毒的微量元素.
这些动员的元素可以污染地表和地下水,影响生态系统和水资源.
了解微量元素释放的动态对于管理水质至关重要.

研究的目的:

为量化由脱冰事件导致的微量元素从土壤释放到孔水和地下水的时间和程度.
为了比较农村和城市环境中的微量元素动员.
评估土地利用在将脱冰相关污染物运输到地下水中的作用.

主要方法:

为微量元素, (Na) 和 (Cl) 分析采集土壤孔水和石泉水样本.
盐应用,Na/Cl含量和微量元素度之间的相关性分析.
农村和城市地区污染物水平的比较.

主要成果:

在一个农村地区,土壤孔水中的微量元素 (As,Ba,Fe,Sr) 在脱冰事件后达到Na和Cl的峰值.
在农村的石泉中没有观察到显著的微量元素增加,这可能是由于淡化冰的低投入.
城市的岩泉源显示了微量元素 (As,Cu,Li) 峰值与脱冰脉冲,并且发现了盐应用和微量元素出口之间的显著相关性.

结论:

道路盐的应用推动了微量元素从土壤释放到土壤孔水和地下水中.
城市化加剧了这些脱冰相关的微量元素污染物的释放和运输.
土地利用显著影响地下水系统中微量元素污染的途径和程度.

关键词:

果制冷器 (Deicer) 是一个淡水的盐化是淡水的盐化.卡斯特河 (Karst) 是一个卡斯特河.污染污染污染微量金属的痕迹可以看到.城市化的城市化.

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