Manganese: Environmental Pollution and Health Effects

Röllin, Halina B.; Nogueira, Claudina

doi:10.1016/b978-0-444-52272-6.00540-7

Cited by 44 publications

(40 citation statements)

References 15 publications

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“…It is enlisted as the 12th most abundant element in the earth crust, and the 5th most abundant metal. Even though this heavy metal is ubiquitous in the environment, it is recorded in low levels in environmental samples; food, air, water, and soil (Rōllin & Nogueira, 2011). This affirms the low levels of Mn recorded in the milled maize and millet samples.…”

Section: Resultsmentioning

confidence: 99%

Quantification and health risk assessment of heavy metals in milled maize and millet in the Tolon District, Northern Ghana

Larsen

Cobbina

Ofori

et al. 2020

Food Science & Nutrition

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This study was conducted to quantify the levels and measure the health risk of selected heavy metals (Fe, Zn, Pb, Mn, Cr, Ni) in milled millet and maize from 10 communities in the Tolon District, northern region of Ghana. Control samples of maize and millet were also prepared in order to identify whether the sources of the heavy metals were limited to the milling process or otherwise. The heavy metals present in the collected milled samples were quantified using an AAS Varian Spectra 220 FS. The average concentrations of the selected heavy metals in the milled maize samples were the following: Fe = 1.3392 ± 0.4341 mg/kg, Ni = 0.9502 ± 0.2696 mg/kg, Pb = 2.2177 ± 0.0534 mg/kg, Cr = 0.4359 ± 0.3574 mg/kg, Zn = 0.6809 ± 0.0534 mg/kg, and Mn = 0.3550 ± 0.1042 mg/kg. Milled millet samples recorded mean concentration of the heavy metals as Fe = 1.9467 ± 1.0597 mg/kg, Ni = 0.9520 ± 0.1218 mg/kg, Pb = 2.2780 ± 0.0221 mg/kg, Cr = 0.3421 ± 0.1498 mg/kg, Zn = 0.8540 ± 0.1139 mg/kg, and Mn = 0.4241 ± 0.0859 mg/kg. All selected heavy metals concentrations were below standards in food except Pb. Locally made mill plates were found to leach heavy metals in the milled flours due to the direct contact of the grains with the mill plates. However, the comparison of milled to pounded flour (control samples) indicated other potential sources of heavy metals aside from the disk attrition mill. The health risk assessment revealed no potential hazards nor cancer risk in both children and adults.

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Section: Resultsmentioning

confidence: 99%

Quantification and health risk assessment of heavy metals in milled maize and millet in the Tolon District, Northern Ghana

Larsen

Cobbina

Ofori

et al. 2020

Food Science & Nutrition

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“…This element was found in more samples and with higher content in the West Carpathians than in the Tian-Shan mountains. The major pool of Mn in soils originates from crustal rock, with other sources including direct atmospheric deposition, wash-off from plants and other surfaces, leaching from plant tissues, and the shedding or excretion from plant and animal matter [42]. The major anthropogenic source of environmental Mn include emission from Mn is mining.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Element Concentrations (Ba, Mn, Pb, Sr, Zn) in the Bones and Teeth of Wild Ruminants from the West Carpathians and the Tian-Shan Mountains as Indicators of Air Pollution

2019

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Through analyzing the concentrations of selected heavy metals (Ba, Mn, Pb, Sr, Zn) in the bones and teeth of wild living and ecologically equivalent ruminants from the Tian-Shan (Capra sibirica and Ovis ammon polii) and the West Carpathians (Rupicapra rupicapra tatrica) we compared the environmental pollution levels of these two mountain ranges. The samples were analyzed by X-ray fluorescence. Significantly higher contents of Zn and Mn as well as a higher frequency of measurable occurrences of Mn, Ba, and Pb in samples from the West Carpathians confirmed the results of our previous study, that the West Carpathians are relatively more polluted by heavy metals than the Tian-Shan Mountains. The most probably contamination sources are mining and smelting as well as traffic emissions, which can reach remote mountain ranges through long distance atmospheric transport.

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“…Metallic manganese is mostly used in steel and alloy production, while its compounds are used in a variety of manufacturing processes, ranging from dry cell batteries and agrochemicals to ceramics and glass [2]. Consequently, manganese presence in production wastes is generally inevitable, making the wastes hazardous and therefore becoming the emphasized environmental problem.…”

Section: Introductionmentioning

confidence: 99%

“…However, either deficiency or excess of manganese affects health detrimentally: the both cases are associated with different disease states. Excessive intake of manganese, most commonly by inhalation or ingestion, may result in central nervous system pathology (i. e. emotional disturbances, Parkinson's disease…), as the brain is a critical target organ for manganese deposition [1,2]. Therefore, environmental exposures to manganese have become public healthconcern all over the world.…”

Section: Introductionmentioning

confidence: 99%

Manganese waste mud immobilization in cement – natural zeolite – lime blend: Process optimization using artificial neural networks and multi‐criteria functions

Ukić¹,

Dimić

Šiljeg

et al. 2013

Materialwissenschaft Werkst

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In this study, stabilization/solidification process of manganese contaminated mud using portland cement was optimized. For that purpose, immobilization process was modeled applying artificial neural networks with radial basis activation function. The optimal model presented satisfactory prediction characteristics (R 2 value for manganese leaching was 0.9615 while and for concrete flexural strength 0.8748). Therefore, it was used in combination with seven inhouse developed multi-criteria optimization functions, separately, in order to optimize concrete formulation. The used approach proved itself as efficient and cost effective alternative in ecological material formulation process. The best properties (i. e. high flexural strength and lowest manganese leaching) manifested stabilization/solidification matrix consisted of 350 g of portland cement, 20 g of lime, 70 g of natural zeolite, 10 g of manganese waste mud and 180 g of water.

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Manganese: Environmental Pollution and Health Effects

Cited by 44 publications

References 15 publications

Quantification and health risk assessment of heavy metals in milled maize and millet in the Tolon District, Northern Ghana

Quantification and health risk assessment of heavy metals in milled maize and millet in the Tolon District, Northern Ghana

Comparison of Element Concentrations (Ba, Mn, Pb, Sr, Zn) in the Bones and Teeth of Wild Ruminants from the West Carpathians and the Tian-Shan Mountains as Indicators of Air Pollution

Manganese waste mud immobilization in cement – natural zeolite – lime blend: Process optimization using artificial neural networks and multi‐criteria functions

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