Bauru含水层系统地下水质量参数的时空变异性（巴西圣保罗州）

Q4 Social Sciences

Anuario do Instituto de Geociencias Pub Date : 2023-04-21 DOI:10.11137/1982-3908_2023_46_53748

Isadora Vitali Lobo, Olavo Tozete Tercini, José Augusto Di Lollo, C. G. R. Lima

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引用次数: 0

摘要

当化学物质在水中的浓度超过立法允许的限度时，可能对人类有害。本研究分析了包鲁含水层系统（BAS）地下水中钡、铬、硝酸盐和钒浓度的时空变化。为此，从CETESB（圣保罗环境公司）获得了三年一次的水质监测数据（2016-2018年）。采用了描述性统计方法和地质统计学技术（克里格法）。结果证明了水质参数随时间的空间相关性。变差图表示在0.435和0.961之间的空间决定系数（R²）。Prudente总统所在的市政当局的情况最为糟糕，铬和钒的估计值超过了最大允许值（MAV）。事实上，大多数获得许可的水井都开采城市供水，这一结果令人担忧，并表明公共机构必须采取一些行动来降低这些浓度。

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Spatial and Temporal Variability of Groundwater Quality Parameters in the Bauru Aquifer System (São Paulo State, Brazil)

Chemical substances can be harmful to humans when present in water at concentrations above the limits permitted by legislation. The present study analyzes the spatial-temporal variability of barium, chromium, nitrate and vanadium concentrations in groundwaters of the Bauru Aquifer System (BAS). For this purpose, triennial water-quality monitoring data (2016-2018) were acquired from CETESB (São Paulo Environmental Company). Descriptive statistical methods and geostatistical techniques (kriging) were applied. Results attest the spatial dependence of the water-quality parameters along time. Variograms indicate spatial determination coefficients (R²) between 0.435 and 0.961. The municipality of Presidente Prudente has the worst scenario, with estimates chromium and vanadium above the Maximum Allowed Values (MAV). The fact that most of licensed wells exploit water for urban supply makes the results worrying and shows up that public agencies must take some actions to decrease these concentrations.

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来源期刊

Anuario do Instituto de Geociencias Social Sciences-Geography, Planning and Development

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

28 weeks

期刊介绍： The Anuário do Instituto de Geociências (Anuário IGEO) is an official publication of the Universidade Federal do Rio de Janeiro (UFRJ – CCMN) with the objective to publish original scientific papers of broad interest in the field of Geology, Paleontology, Geography and Meteorology.