Co-occurrence, possible origin, and health-risk assessment of arsenic and fluoride in drinking water sources in Mexico: Geographical data visualization

Alarcón-Herrera, María Teresa; Martin-Alarcon, Daniel A.; Gutiérrez, Mélida; Reynoso-Cuevas, Liliana; Martín-Domínguez, Alejandra; Olmos-Márquez, M.A.; Bundschuh, Jochen

doi:10.1016/j.scitotenv.2019.134168

Cited by 167 publications

(78 citation statements)

References 49 publications

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“…In a recent research study, geographical data visualization was used to explore the distribution and potential level of fluoride and arsenic in drinking water in Mexico in order to approximate the corresponding health burden for proper public health policies [6]. The study confirmed the association between fluoride contamination and aridity, together with the variation of fluoride concentrations in arid and humid states [6]. In China, GPS and GIS were used to locate and identify the distribution of malaria.…”

Section: Geotagging In Public Healthmentioning

confidence: 92%

“…Geotagging has been used for multiple purposes in health care. Some of the main benefits of geotagging are (1) being a better tool for health care data's visualization [6,7], (2) supporting time domain data analysis [8], (3) facilitating cross-analysis of multiple data types [9][10][11], and (4) enabling automatic data analysis [12][13][14].…”

Section: Geotagging In Public Healthmentioning

confidence: 99%

“…Geotagging plays a crucial role in the visualization of geographically related health care data. Geotagging facilitates not only the analysis of this type of data, but also policy decision making [6], planning of new research, and data acquisition activities [7]. In a recent research study, geographical data visualization was used to explore the distribution and potential level of fluoride and arsenic in drinking water in Mexico in order to approximate the corresponding health burden for proper public health policies [6].…”

Section: Geotagging In Public Healthmentioning

confidence: 99%

“…Geotagging facilitates not only the analysis of this type of data, but also policy decision making [6], planning of new research, and data acquisition activities [7]. In a recent research study, geographical data visualization was used to explore the distribution and potential level of fluoride and arsenic in drinking water in Mexico in order to approximate the corresponding health burden for proper public health policies [6]. The study confirmed the association between fluoride contamination and aridity, together with the variation of fluoride concentrations in arid and humid states [6].…”

Section: Geotagging In Public Healthmentioning

confidence: 99%

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Starter Kit for Geotagging and Geovisualization in Health Care: Resource Paper

Marc

Plotkin

et al. 2020

JMIR Form Res

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Background Geotagging is the process of attaching geospatial tags to various media data types. In health care, the goal of geotagging is to gain a better understanding of health-related questions applied to populations. Although there has been a prevalence of geographic information in public health, in order to effectively use and expand geotagging across health care there is a requirement to understand other factors such as the disposition, standardization, data sources, technologies, and limitations. Objective The objective of this document is to serve as a resource for new researchers in the field. This report aims to be comprehensive but easy for beginners to understand and adopt in practice. The optimal geocodes, their sources, and a rationale for use are suggested. Geotagging’s issues and limitations are also discussed. Methods A comprehensive review of technical instructions and articles was conducted to evaluate guidelines for geotagging, and online resources were curated to support the implementation of geotagging practices. Summary tables were developed to describe the available geotagging resources (free and for fee) that can be leveraged by researchers and quality improvement personnel to effectively perform geospatial analyses primarily targeting US health care. Results This paper demonstrated steps to develop an initial geotagging and geovisualization project with clear structure and instructions. The geotagging resources were summarized. These resources are essential for geotagging health care projects. The discussion section provides better understanding of geotagging’s limitations and suggests suitable way to approach it. Conclusions We explain how geotagging can be leveraged in health care and offer the necessary initial resources to obtain geocodes, adjustment data, and health-related measures. The resources outlined in this paper can support an individual and/or organization in initiating a geotagging health care project.

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Section: Geotagging In Public Healthmentioning

confidence: 92%

Section: Geotagging In Public Healthmentioning

confidence: 99%

Section: Geotagging In Public Healthmentioning

confidence: 99%

Section: Geotagging In Public Healthmentioning

confidence: 99%

See 2 more Smart Citations

Starter Kit for Geotagging and Geovisualization in Health Care: Resource Paper

Marc

Plotkin

et al. 2020

JMIR Form Res

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“…It has reported that about 1.5 million of Mexicans are exposed to high levels of fluoride (1500 mg/L) in drinking water [1] This constitutes a serious health issue.…”

Section: Introductionmentioning

confidence: 99%

Gas Diffusion-Flow Injection System with Preconcentration for the Analysis of Fluoride in Semen

Humberto¹,

Hernandez²,

Díaz³

et al. 2020

Int J Analyt Bioanalyt Methods

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Among the deleterious effects of fluorine in the human body is the alteration of the reproductive system. The measurement of fluoride in urine is usually used as a biomarker of exposure but it provides no information about is incorporation in the reproductive system. So, in order to relate fluoride with effects in male's fertility it is convenient to measure fluoride in semen. Fluorine is one of the elements whose determination is difficult because the final measurement of the fluoride ion is interfered by other species usually present in the samples. For this reason, separation by distillation of the fluoride as hydrofluoric acid prior to its determination is commonplace. Separation of fluoride by distillation is time-consuming, so new methods are aimed to avoid the distillation step. Biological samples normally contain low levels of fluorine, so it is always necessary a preconcentration step before the determination, but in the case of semen the sample volume is typically low (not more than 3 ml). So, the main goal was the determination of low levels of fluorine in a small sample volume of biological fluids. We developed a method using and automated FIA (Flow Injection Analysis) system using a gas diffusion cell (GDC) that can be operated in two ways a) Continuous for samples with high concentration and b) An open/close configuration for samples with low concentration. The method is based on the conversion of the fluoride ion to the HMDS derivative (a gas) and permeating the gas through a membrane regenerating the fluoride ion in the acceptor current and measuring it with an Ion Selective Electrode (ISE). The method allows the measurement of fluoride in semen with low detection limits, low sample volume, but allowing a good reliability measured as %RSD: 1.6% RSD for semen samples in the open-closed configuration and 0.68% RSD for the continuous mode. The method was used in the determination of fluoride in semen of 28 individuals from San Luis Potosí, México, exposed to low concentrations of fluoride (drinking water) and a subgroup of occupationally exposed workers with high concentrations of fluoride (laboral exposure) but also to drinking water.

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