Health Risk of some Trace Elements in the Water of the Subsidence Pool in Huainan

2011 ◽  
Vol 347-353 ◽  
pp. 2021-2027 ◽  
Author(s):  
Xing Ming Wang ◽  
Zhong Bing Dong ◽  
Gui Jiang Liu ◽  
Jing Liang Mei ◽  
Jie Yao
Keyword(s):  
Trace Elements ◽  
Water Environment ◽  
Waste Rock ◽  
Coal Waste ◽  
Environment Quality ◽  
Noncarcinogenic Risk ◽  
Local Residents ◽  
The Mean ◽  
Waste Rock Piles ◽  
Contamination Levels

Samples of water were collected from the subsidence pools around the coal waste rock piles and some toxic trace elements were determined. The results conclused as the mean concentrations of As, Zn and Pb ranged from 4.71E-03 to 1.78E-02, 9.22E-03 to 2.13E-02, 1.69E-03 to 5.43E-03, respectively, which were lower than the first level of surface water environment quality standards established in China. The mean concentrations of Cd and Cu ranged from 3.30E-04 to 1.25E-03, 1.04E-02 to1.85E-02, respectively, which were within the range of the second level. As the HQs of As, Zn, Pb, Cd, Cu were less than 1, suggesting minimal noncarcinogenic risk to human health. Only As was evaluated with potential carcinogenic risks of 3.17E-04 and 2.02E-04 (>10-4) in the water of subsidence pools around Panyi and Guqiao coal waste rock piles via oral consumption, indicating that As had potential adverse effects on local residents in these two sites. This study is to investigate the contamination levels of trace elements and to estimate the risk to health effects in the water of the subsidence pools in Huainan.

Rehabilitation of waste rock piles: Impact of acid drainage on potential toxicity by trace elements in plants and soil

2021 ◽  
Vol 280 ◽  
pp. 111848
Author(s):  
Paula Madejón ◽  
David Caro-Moreno ◽  
Carmen M. Navarro-Fernández ◽  
Sabina Rossini-Oliva ◽  
Teodoro Marañón
Keyword(s):  
Trace Elements ◽  
Waste Rock ◽  
Potential Toxicity ◽  
Acid Drainage ◽  
Waste Rock Piles

scholarly journals Occurrence of 8 trace elements in Rhizoma Cibotii from China and exposure assessment

2021 ◽  
Author(s):  
Zhijie Chu ◽  
Hongxia Xu ◽  
Lijun Shao ◽  
Jin Li ◽  
Xiaolin Wang ◽  
...  
Keyword(s):  
Trace Elements ◽  
Quantitative Analysis ◽  
Human Health ◽  
Exposure Assessment ◽  
Health Risks ◽  
Baseline Information ◽  
The Mean ◽  
Contamination Levels ◽  
Significant Health

Abstract The contamination of trace elements in Chinese edible herbs has attracted a worldwide concern. In this study, the occurrence and quantitative analysis of 8 trace elements in Rhizoma Cibotii were investigated. Results demonstrated that the trace elements of Cr, Ni, Cu, Zn and Pb were detected in all analyzed samples, the occurrence frequencies of As, Se and Cd were 98.3%, 96.6% and 98.3%, respectively. The highest mean levels was found in Zn (17.32 mg/kg), followed by Pb (8.50 mg/kg) and Cu (3.51 mg/kg). Based on their contamination levels, the mean exposure of individual elements was estimated. The calculated HQ values were less than 1, indicating that the contamination of trace elements in Rhizoma Cibotii did not pose significant health risks to human. This study provides baseline information on trace elements in Rhizoma Cibotii, and it is necessary to monitor its trend in future for human health.

Assessment of Unsaturated Flow for a Large Coal Mine Waste Rock Pile

2014 ◽  
Vol 955-959 ◽  
pp. 1179-1183 ◽  
Author(s):  
Hajizadeh Namaghi Hadi ◽  
Ming Kun Luo ◽  
Sheng Li
Keyword(s):  
Unsaturated Flow ◽  
Mine Drainage ◽  
Mine Waste ◽  
Waste Rock ◽  
Coal Waste ◽  
Rock Pile ◽  
Rock Materials ◽  
Solute Transport Modeling ◽  
Waste Rock Pile ◽  
Waste Rock Piles

Some waste rock piles create some problems such as acid mine drainage (AMD), leaching of heavy metals, and slope stability concerns. These problems are related to the flow of water through the rock pile. Understanding the physical and hydrological properties of the waste rock piles is important for flow and solute transport modeling. To study physical properties and unsaturated flow in rock pile, some soil samples were collected from surface of the large coal waste rock pile and tested for some common geotechnical parameters in the laboratory. The results showed that materials are so heterogeneous and highly supporting segregation and natural gravity sorting of waste rock materials from top to toe. Numerical simulation was performed to investigate the unsaturated flow conditions in the pile. The results obtained showed that pile is unable to fully saturate and drain during the simulated period. It was also found that high evaporation and also coarse grain nature of waste rock materials results holding few amounts of water in the system.

Methylmercury and Trace Element Distribution in the Organs of Stenella coeruleoalba Dolphins Stranded on the French Mediterranean Coast

2014 ◽  
Vol 8 (1) ◽  
pp. 35-48 ◽  
Author(s):  
Emmanuel Wafo ◽  
Véronique Risoul ◽  
Thérèse Schembri ◽  
Véronique Lagadec ◽  
Frank Dhermain ◽  
...  
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Marine Pollution ◽  
Element Distribution ◽  
Mediterranean Coast ◽  
Trace Element Distribution ◽  
Slight Reduction ◽  
Stenella Coeruleoalba ◽  
Contamination Levels

The main objective of this study was to evaluate the contamination by mercury (Hg), methylmercury (Me-Hg), cadmium (Cd), selenium (Se), zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) in dolphins stranded on the French Mediterranean coast. The distributions of these contaminants in the organs of dolphins have also been studied. Overall, contamination levels varied according to the following sequence: liver > kidney > lung > muscle, except for cadmium (kidney > liver > lung > muscle). Size and sex of animals were also considered. Young dolphins were less impacted with trace elements than adults, except for copper. Among the studied parameters, the most important appeared to be the size of mammals. In addition, in the case of mercury and selenium, the sex of mammals seemed to be also relevant. The correlations between the concentrations of trace elements suggest the existence of detoxification processes. Since 1990s, using dolphins for tracing marine pollution, a slight reduction in the burden of the considered trace elements could be noted.

scholarly journals Evaluating Cultural Landscape Remediation Design Based on VR Technology

2021 ◽  
Vol 10 (6) ◽  
pp. 423
Author(s):  
Zhengsong Lin ◽  
Lu Zhang ◽  
Su Tang ◽  
Yang Song ◽  
Xinyue Ye
Keyword(s):  
Cultural Landscape ◽  
Aesthetic Experience ◽  
Water Environment ◽  
Vegetation Coverage ◽  
Visual Fatigue ◽  
Environment Quality ◽  
Rural Revitalization ◽  
Remediation Design ◽  
Ecological Remediation

Due to the recent excessive pursuit of rapid economic development in China, the cultural heritage resources have been gradually destroyed. This paper proposes cultural recovery and ecological remediation patterns, and adopts virtual reality (VR) technology to evaluate the visual aesthetic effect of the restored landscape. The results show that: (1) the average vegetation coverage increased, providing data support for remediation design evaluation; and (2) the fixation counts and average saccade counts of the subjects increased after the remediation design, indicating that the restored cultural landscape reduced visual fatigue and provided a better visual aesthetic experience. Furthermore, the comparative analysis of the quality of the water environment shows that the remediation design project improved the ecological environment quality of the relics area. The results of this study will contribute to rural revitalization in minority areas in southwest China.

Simulating nitrate release from an unsaturated coal waste rock dump

2021 ◽  
Vol 779 ◽  
pp. 146429
Author(s):  
Mingbin Huang ◽  
S. Lee Barbour ◽  
M. Jim Hendry
Keyword(s):  
Waste Rock ◽  
Coal Waste ◽  
Waste Rock Dump

scholarly journals Some Elemental Content of Soil Within Catchment of River Jakara in Kano, Nigeria

2016 ◽  
Vol 5 (1) ◽  
pp. 119
Author(s):  
Dike N. I. ◽  
S. J. Oniye
Keyword(s):  
Trace Elements ◽  
Catchment Area ◽  
Agricultural Soils ◽  
Atomic Absorption Spectrophotometry ◽  
Health Concern ◽  
Elemental Content ◽  
Contaminated Water ◽  
Public Health Concern ◽  
The Mean ◽  
Vegetables And Fruits

The use of untreated urban wastes and domestic sewage contaminated water for the irrigation of agricultural soils is on the rise particularly in the developing countries and is a public health concern with regards to the consumption of vegetables and fruits produced in them which may indirectly accumulate heavy metals in their edible portions. Using the atomic absorption spectrophotometry (AAS), concentrations of Ca, Mg, Na, K (essential bulk elements), Pb, Cd, Cr, Ni, Cu, Zn, Co and Fe (trace elements) were determined in 3 designated areas within the catchment area of River Jakara in Kano Nigeria. Samples were collected from two depths 0-15cm and 15-30cm to cover both dry and wet seasons. The mean concentrations of elements obtained ranged from 0.026 mg/g Cd to 46.83 mg/g Fe and occurred in the magnitude of Fe > Ca > K > Na > Pb >Zn > Co > Cu >Cr > Ni > Cd. The concentrations of the trace elements in the soils in the two depths exceeded the international recommended permissible limits establishing the pollution of the irrigation soils with the trace elements investigated. Based on the findings, it is recommended among others that the relevant organ of government should find an alternative farmland for the farmers within the catchment area of River Jakara where unpolluted waste sources can be utilized for the irrigation of vegetables.

scholarly journals Haematological, Oxidative Stress and Trace Elements Variations Associated with Emaciation in Pre-Slaughter White Fulani Cows

2021 ◽  
Author(s):  
Funmilola Clara Thomas ◽  
Richard Edem Antia ◽  
Fakilahyel Mshelbwala ◽  
Eyitayo Solomon Ajibola ◽  
Obokparo Godspower Ohore ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Trace Elements ◽  
Reference Range ◽  
Jugular Vein ◽  
Redox Homeostasis ◽  
Oxidative Stress Marker ◽  
Normal Reference Range ◽  
The Mean ◽  
White Fulani ◽  
Haematological Analysis

Abstract Pre-slaughter White Fulani cows were purposively sampled on the basis of body condition: emaciated (n=37) and non-emaciated (n=37), with the objective of understanding the intricate interplay of oxidative stress, trace elements and haematological variations during emaciation. Blood was drawn from the jugular vein for haematological analysis and accruing serum was used for the evaluation of malondialdehyde (oxidative stress marker), antioxidant enzymes and compounds, serum protein, electrolytes as well as trace elements. Significant (p < 0.05) differences between the emaciated and non-emaciated cows were established only in the values of copper and reduced glutathione (GSH), which were lower in emaciated cows (EC). None of the animals had packed cell volume (PCV) below the normal reference range, however values above the normal (> 46%) were seen, suggesting dehydration. The PCV in emaciated cattle was slightly lower than in non-emaciated cows. The mean malondialdehyde concentration in non-emaciated cattle was higher than that in emaciated ones, however antioxidants SOD, catalase, Vitamin C and zinc were slightly higher in non-emaciated cows (NEC). Overall, the results indicate that emaciation in studied White Fulani cows (WFC) displayed a variable redox homeostasis confounded by dehydration and depletion of antioxidants.

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