Who to blame for groundwater fluoride anomaly in São Paulo, Brazil? Hydrogeochemistry and isotopic evidence

Martins, Veridiana Teixeira de Souza; Pino, Daphne Silva; Bertolo, Reginaldo Antônio; Hirata, Ricardo; Babinski, Marly; Pacheco, Diego Felipe; Rios, Ana Paulo

doi:10.1016/j.apgeochem.2017.12.020

Cited by 19 publications

(7 citation statements)

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“…The World Health Organization (WHO) has set a limit for fluoride in drinking water of 1.5 mg L −1 . Nevertheless, F levels in aquifers and water bodies often exceed this value (Silva, 1983;Martins et al, 2018). In various parts of the world, fluoride concentrations in water from aquifers used for plant irrigation range from 1.5 to 5.0 mg L −1 (Vikas et al, 2013;Abiye, Bybee & Leshomo, 2018).…”

Section: Introductionmentioning

confidence: 99%

Bioindicator potential of Ricinus communis to simulated rainfall containing potassium fluoride

Rodrigues

Sales

Filho

et al. 2020

PeerJ

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Background Fluoride pollution is a global problem because of its high phytotoxicity. Fluoride is released in air, water and soil through industrial processes, where it damages various plant species. Ricinus communis is widely distributed in Brazil, India and China and has been extensively used as a phytoremediation species in heavy metal-contaminated soils. However, few studies regarding the effect of air pollutants on R. communis have been published, and no information about the exposure of this species to fluoride is available. Therefore, the aim of the present study was to investigate the effects of fluoride on R. communis morphoanatomical and physiological responses using simulated rainfall containing potassium fluoride (KF). Methods Young plants at approximately 10 days after emergence were treated daily with KF using simulated rainfall at 0, 1.5, 3.0 and 4.5 mg L−1, for 37 consecutive days. Chlorophyll a fluorescence, gas exchange, anatomical characteristics and fluoride accumulation in the roots and leaves were evaluated after this period. Results No visual or anatomical symptoms were observed for the first three treatments. Necrosis and chlorosis were visually evident after the 37th day of KF application at 4.5 mg L−1, followed by changes in parenchyma tissues, cell collapse and phenolic compound accumulation at the end of the experiment. No damage was observed in terms of photosynthetic photochemical and biochemical stages. Maintenance of physiological characteristics in the presence of fluoride accumulation in roots and leaves were shown to be important fluoride biomarkers. These characteristics suggest that R. communis is tolerant to 1.5 and 3.0 mg L−1 KF, and is anatomically sensitive at 4.5 mg L−1 KF.

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Section: Introductionmentioning

confidence: 99%

Bioindicator potential of Ricinus communis to simulated rainfall containing potassium fluoride

Rodrigues

Sales

Filho

et al. 2020

PeerJ

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“…• Aquifers whose hydrogeochemical conditions favor the localized dissolution of certain minerals that release ions in the groundwater at concentrations above the drinking standard. This is the case of dissolved iron and manganese in the aquifer systems of Alter do Chão, Missão Velha, Barreiras and Cenozoic continental and coastal deposits; and fluorine in fractured aquifer systems (Martins et al, 2018) Bambuí, Guarani and Serra Geral. It is also known the occurrence of high levels of chromium and barium in the Bauru-Caiuá Aquifer System in the State of São Paulo (Bertolo et al, 2011;Tavares et al, 2015);…”

Section: Natural Composition Of Groundwater and Geochemical Anomaliesmentioning

confidence: 99%

How much do we know about the groundwater quality and its impact on Brazilian society today?

Hirata

Suhogusoff

2019

Acta Limnol. Bras.

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Groundwater is an essential resource for society and the environment in Brazil. More than 557 m3/s (17.5 km3/y) are extracted through 2.5 million wells to meet demand in cities and the countryside, generating an economy of R$ 56 billion per year (US$ 14 billion/year). The aquifer has a remarkable function in the hydrological cycle because its large storage regulates the perenniality of rivers, lakes and preserves mangroves, marshes, and vegetation in dry periods. Aquifer discharges maintain between 24% (annual average) and 49% (dry season) of the flow of these surface water bodies. Although studies on groundwater quality are still restricted, it is known that most aquifers still preserve their excellent natural quality. Nevertheless, over the past years, there has been a growing increase in cases of contamination associated with: (i) natural geochemical anomalies (iron, manganese, and fluorine, secondarily, chromium, and barium, and rarely arsenic) due to the dissolution of specific minerals; and (ii) human contaminant activities, related to urban areas without sewage network, or with industrial activities, storage of hazardous products, and solid waste facilities. Among the anthropic compounds commonly handled, the most problematic are the chlorinated organic solvents and heavy metals, and in non-sewage areas, nitrate. The precarious knowledge of aquifer-quality, especially in cities, demonstrates the need to invest in regular and systematic hydrogeological research and mapping projects that drive to the improvement of the practices on aquifer quality protection.

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“…(CGWB 2016). Studies also show that industrial activities and minerals in sedimentary and crystalline rocks have an important role in escalating groundwater fluoride concentrations; moreover, fluoride occurrence has positive correlation with Na and HCO 3 − concentrations and negative correlation with Ca 2 + (Martins et al 2018). Further granite rocks also play a major role in increasing the fluoride concentration in groundwater owing to the dissolution of minerals (Craig et al 2018;Abiye et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Drinking water quality problem in Haryana, India: prediction of human health risks, economic burden and assessment of possible intervention options

Misra

2018

Environ Dev Sustain

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The present study was carried out in Jhajjar district of Haryana state, India, to understand the burden of diseases due to consumption of contaminated drinking water. About 630 respondents in villages, namely Kablana, Talao, Shekhupur Jat, Hassanpur, Babra and Kheri Asra, were interviewed for the quality of water they consumed from different sources such as government supply stations, hand pumps, tube wells, tanks, etc., and its overall impact on their health was analysed. The study considered both geogenic and anthropogenic contamination in drinking water sources and found that nearly 15% of the sampled population suffered with water-related health issues, of which 6% faced frequent episodes of stomach infection, and 9% were detected with mild to moderate dental fluorosis. Several cases of stones, severe joint pain, and backbone pain were also observed. The average medical expenses incurred by the villagers are in the range of Rs. 1000-2000 per month (approximately $17-$34 per month) for treatment owing to drinking of polluted and contaminated groundwater. Overall finding of the study indicates that unavailability of treated water supply, usage of groundwater with high to very high concentration of geogenic contaminants in groundwater such as fluoride and salinity, and use of water from open surface water resources are causing health problems to people in Jhajjar district. Use of contaminated water is causing economic burden to the villagers in terms of expenditure on health or water treatment by various means, which can be addressed by implementing various in situ and ex situ water management and treatment techniques suggested as intervention options, suitable for the study area.

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Who to blame for groundwater fluoride anomaly in São Paulo, Brazil? Hydrogeochemistry and isotopic evidence

Cited by 19 publications

References 40 publications

Bioindicator potential of Ricinus communis to simulated rainfall containing potassium fluoride

Bioindicator potential of Ricinus communis to simulated rainfall containing potassium fluoride

How much do we know about the groundwater quality and its impact on Brazilian society today?

Drinking water quality problem in Haryana, India: prediction of human health risks, economic burden and assessment of possible intervention options

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