Environmental exposure to manganese and health risk assessment from personal sampling near an industrial source of airborne manganese

Markiv, Bohdana; Expósito, Andrea; Ruiz-Azcona, Laura; Santibáñez, Miguel; Fernández-Olmo, Ignacio

doi:10.1016/j.envres.2023.115478

Cited by 8 publications

(2 citation statements)

References 36 publications

(48 reference statements)

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“…Consumption of water laden with high levels of Mn can lead to an increased risk of neurological disorders. Notwithstanding the essentiality classification of Mn in humans, excess amount has been linked to brain, liver, and kidney damage in developing fetuses (Markiv et al, 2023).…”

Section: Concentration Of Heavy Metals In Borehole Water Samplesmentioning

confidence: 99%

Groundwater quality assessment and human health risks in Ovitoto, Otjozondjupa Region, Namibia

Priskila,

Erold,

Omotayo

2023

Afr. J. Environ. Sci. Technol.

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Namibia, a dry country relies heavily on groundwater resources which is susceptible to anthropogenic contamination. The study assessed the quality and health risks of borehole water supplied to residents of the Ovitoto community in Otjozondjupa region of Namibia. Water samples were collected from nine boreholes across nine communities over a period of six months and subjected to physicochemical and microbial analyses. Heavy metals were extracted using mineral acid digestion and detected using Inductively Coupled Plasma Optical Emission spectroscopy (ICP-OES). Microbial entities were analyzed using standard bacteriological method. Results revealed that the pH, temperature, and electrical conductivity (EC) of samples were within WHO permissible levels for human consumption while Turbidity and total dissolved solids (TDS) were above the limit. Overall mean concentrations of heavy metals were 0.83, 0.01, 0.02, 17.8, and 7.09 mg/L for Zn, Cd, Pb, Fe, and Mn respectively. WHO drinking water permissible levels were obtained for Cd, Pb, Fe and Mn and the water could also be regarded as unsuitable for irrigational use because it is above permissible levels of Cd, Fe, and Mn. Zn and Cd showed a strong correlation (r=0.99) with an average correlation (r=0.55) between Cd and Cu. The human health risk of the metals was assessed using the Target Hazard Quotient (THQ) and Carcinogenic Risk Index (CRI), where HQ >1 and CRI > 1.0×10-4 indicate non-carcinogenic and carcinogenic risks, respectively. THQ values < 1 was obtained for analyzed metals in both children and adults. However, CRI (Mn) values of 4.8 for adults and 18.1 for children indicate potential exposure to carcinogenic risk. Detection of HPC, Tc, and Fc in water samples above permissible levels also gives cause for concern. Pretreatment and monitoring of borehole water samples before distribution for consumption is highly recommended.

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Section: Concentration Of Heavy Metals In Borehole Water Samplesmentioning

confidence: 99%

Groundwater quality assessment and human health risks in Ovitoto, Otjozondjupa Region, Namibia

Priskila,

Erold,

Omotayo

2023

Afr. J. Environ. Sci. Technol.

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“…Furthermore, the health problems that most affect employees exposed to a considerable amount of manganese impact the nervous system. Such health effects include behavioral changes, and mainly those related to movements that appear slower and clumsier [5,6].…”

Section: Introductionmentioning

confidence: 99%

Analytical Compatibility between Various Techniques for Determining Dissolved Manganese in Produced Water

Manea,

Freire,

Junior

et al. 2024

Analytica

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Petroleum-produced water is the primary effluent generated during the oil extraction process, presenting high flow rates, and containing a series of chemical components that are harmful to the environment, such as dissolved manganese. The proof of metrological compatibility between laboratories and different test methods or techniques is an analytical challenge when complying with environmental laws and regulations, which is the aim of this study. The first step of this study was to compare the results of manganese content in real test samples of produced water between some laboratories that used different test methods, that is, flame atomic absorption spectrophotometry, inductively coupled plasma optical emission spectroscopy, and inductively coupled plasma mass spectrometry. Based on one-way analysis of variance, systematic errors were found. The following step was to visit a specific lab, where one could confirm the relevance of the wavelength parameters, operating conditions for the view configuration, and effects of the saline matrices. Finally, a compatibility assessment between the reference laboratory and a new laboratory, which implemented and validated its analytical methodology based on these analytical adjustments, and the experiences and lessons learned in the previous step, was undertaken by a paired t-test.

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A critical review on bioremediation technologies of metal(loid) tailings: Practice and policy

Liu,

Yao,

Tang

et al. 2024

Journal of Environmental Management

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Environmental exposure to manganese and health risk assessment from personal sampling near an industrial source of airborne manganese

Cited by 8 publications

References 36 publications

Groundwater quality assessment and human health risks in Ovitoto, Otjozondjupa Region, Namibia

Groundwater quality assessment and human health risks in Ovitoto, Otjozondjupa Region, Namibia

Analytical Compatibility between Various Techniques for Determining Dissolved Manganese in Produced Water

A critical review on bioremediation technologies of metal(loid) tailings: Practice and policy

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