Assessment of water resources pollution associated with mining activity in a semi-arid region

Santana, César Costapinto; Olivares, Diango Manuel Montalván; Silva, Vinnícius H.C.; Luzardo, Francisco Heriberto Martínez; Velasco, Fermín García; Jesus, Raildo Mota de

doi:10.1016/j.jenvman.2020.111148

Cited by 56 publications

(37 citation statements)

References 41 publications

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“…and groundwater variables were influenced by the common geogenic or anthropogenic sources in the study area, that could be resulted from mafic and ultramafic rocks deposits and mining wastes, releasing high levels of PTEs to the environment (Nawab et al 2015), as well as open dumping and mobilization of mining wastes in abandoned mines, and tailing ponds could be another reason, lead to contaminate the surrounding local soils, surface rivers water and groundwater with PTEs (Shen et al 2019). The results of these correlation analysis of major ions in present study showed similarity with the previous studies, conducted by and Santana et al (2020).…”

Section: Discussionsupporting

confidence: 88%

Contamination Level, Source Identification and Health Risk Assessment of Potentially Toxic Elements in Drinking Water Sources of Mining and Non-mining Areas of Khyber Pakhtunkhwa, Pakistan

Bhatti

Ishtiaq

Khan

et al. 2021

Preprint

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Accelerated mining activities have increased water contamination with potentially toxic elements (PTEs) and their associated human health risk in developing countries. The current study investigated the distribution of PTEs, their potential sources and health risk assessment in both ground and surface water sources in mining and non–mining areas of Khyber Pakhtunkhwa, Pakistan. Water samples (n=150) were taken from selected sites and were analyzed for six PTEs (Ni, Cr, Zn, Cu, Pb and Mn). Among PTEs, Cr showed high mean concentration (497) μg L–1, followed by Zn (414) μg L–1 in mining area, while Zn showed lowest mean value (4.44) μg L–1 in non-mining areas. Elevated concentrations of Ni, Cr and moderate level of Pb in ground and surface water of Mohmand District exceeded the permissible limits set by WHO (2017). Multivariate statistical analyses showed that pollution sources of PTEs were mainly from mafic-ultramafic rocks, acid mine drainage, open dumping of mine-wastes and mine tailings. The hazard quotient (HQ) was highest for children relatively to adults, but not higher than the US-EPA limits. The hazard index (HI) for ingestions of all selected PTEs were lower than the threshold value (HIing <1), except Mohmand District which showed (HI >1) in mining areas through ingestion. Moreover, the carcinogenic risk (CR) values exceeded the threshold limits for Ni and Cr set by the US-EPA (1.0E−04 to 1.0E−06). In order to protect the drinking water sources of the study areas from more contamination, the management techniques and policy for mining operations need to be implemented.

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Section: Discussionsupporting

confidence: 88%

Contamination Level, Source Identification and Health Risk Assessment of Potentially Toxic Elements in Drinking Water Sources of Mining and Non-mining Areas of Khyber Pakhtunkhwa, Pakistan

Bhatti

Ishtiaq

Khan

et al. 2021

Preprint

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“…Water pollution has gradually become a serious global issues (Santana et al 2020;Strokal et al 2020; Deletic et al 2019), due to rapid urbanization , industrialization, agriculture activities over past decades which caused in contamination of water bodies. Many industries discharge their sewage/waste into water bodies without pre-treatment which contains several traditional chemicals such as heavy metal ions, hazardous and toxic pollutants.…”

Section: Introductionmentioning

confidence: 99%

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Liu

Bakhtari

et al. 2021

Environ Sci Pollut Res

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In this study, , Cu), and Graphene Oxide (GO) /MIL-101(Fe,Cu) were synthesized to compose a novel sorbent. The adsorption properties of these three MOFs-based composites were compared toward the removal of phosphate. Furthermore, the influencing factors including reaction time, pH, temperature and initial concentration on the adsorption capacity of phosphate on these materials as well as the reusability of the material were discussed. The structure of fabricated materials and the removal mechanism of phosphate on the composite material were analyzed by Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen adsorption-desorption analysis and zeta potential. The results show that the maximum adsorption capacity of phosphate by the composite GO/MIL-101(Fe,Cu)-2% was 204.60 mg•g -1 , which is higher than that of MIL-101(Fe,Cu) and MIL-101(Fe). likewise the specific surface area of GO/MIL-101(Fe,Cu)-2% is 778.11 m 2 /g is higher than that of Cu) and ,which are 747.75 and 510.66m 2 /g respectively. The adsorption mechanism of phosphate is electrostatic attraction, form coordination bonds and hydrogen bonds. The fabricated material is a promising adsorbent for the removal of phosphate with good reusability.

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“…It releases some pollutants into the nearby soil, resulting in lead pollution [ 12 , 25 , 26 ]. Relatively, the lead concentration is higher in the eastern part of the PS mining area, while the western region and the ES mining area are less affected by lead pollution [ 14 , 27 , 28 ]. Similarly, the concentration of cadmium in the TS mining area is the highest, and the entire mining area is above 1 mg/kg.…”

Section: Resultsmentioning

confidence: 99%

Research on heavy metal level and co-occurrence network in typical ecological fragile area

Zhao

Gao

Zha

et al. 2021

J Environ Health Sci Engineer

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Due to the special sensitivity of typical ecologically fragile areas, a series of human life, mining, and other activities have a greater impact on the environment. In this study, three coal mines in Ordos City on the Loess Plateau were selected as the study area, and the pollution levels of heavy metals in the area were studied by measuring As, Hg, Cr, Cd, Cu, Ni, and Pb in the soil of 131 sampling points. Combined with the concept of “co-occurrence network” in biology, the level of heavy metals in soil was studied using geostatistics and remote sensing databases. The results showed that the concentrations of Hg, Cr, Ni, Cu, and Pb in more than half of the sampling points were higher than the local environmental background value, but did not exceed the risk control value specified by China, indicating that human factors have a greater influence, while Cd and As elements are mainly affected Soil parent material and human factors influence. Heavy metal elements have nothing to do with clay and silt but have an obvious correlation with gravel. Cd, Pb, As and Ni, Cd, Cr are all positively correlated, and different heavy metals are in space The distribution also reflects the autocorrelation, mainly concentrated in the northeast of the TS mining area and the middle of the PS mining area.

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Assessment of water resources pollution associated with mining activity in a semi-arid region

Cited by 56 publications

References 41 publications

Contamination Level, Source Identification and Health Risk Assessment of Potentially Toxic Elements in Drinking Water Sources of Mining and Non-mining Areas of Khyber Pakhtunkhwa, Pakistan

Contamination Level, Source Identification and Health Risk Assessment of Potentially Toxic Elements in Drinking Water Sources of Mining and Non-mining Areas of Khyber Pakhtunkhwa, Pakistan

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Research on heavy metal level and co-occurrence network in typical ecological fragile area

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