Groundwater contamination is a major problem because aquifer and contained groundwater are inherently susceptible to contamination from land use and anthropogenic influence. The risk assessment of groundwater contamination is an effective way to protect groundwater resource.
ادامه مطلب
Contamination of groundwater by potential harmful elements from gold mine tailings and the implications to human health: A case study in Welkom and ia, Free State Province, South Africa
ادامه مطلب
A gold mine near Orange in the New South Wales Central West has confirmed its waste storage facilities are leaking and farmers in the area are seriously concerned about the potential impacts.
ادامه مطلب
Geogenic contamination of groundwater is frequently associated with gold mining activities and related to drinking water quality problems worldwide. In Tanzania, elevated levels of trace elements (TEs) have been reported in drinking water sources within the Lake Victoria Basin, posing a serious health risk to communities.
ادامه مطلب
Assessment of the spatial distribution of arsenic contamination remains an issue in areas influenced by gold and arsenic mining.
ادامه مطلب
Given the prevalence of mining activities in this area, there is a possibility of groundwater contamination by toxic and carcinogenic metals, resulting from soil and underground rock pollution.
ادامه مطلب
Implementing real-time groundwater monitoring and early warning systems to detect and respond to contamination, especially in areas with mining activities will help …
ادامه مطلب
Groundwater contamination is one of the most concerning issues from uranium mining activities. Radionuclides cannot be destroyed or degraded, unlike some organic contaminants (and similar to metals). Besides, sites, where radionuclides may be found, are mainly radioactive and mixed waste disposal areas, and therefore many other …
ادامه مطلب
Tailing impoundments are sources of high-risk pollution due to the accumulation of mining tailings and wastewater. As a result of thin karst overburden as well as actions of precipitation leaching and scouring, pollutants in the tailing impoundment can easily enter the karst aquifer through sinkholes, corrosion fissures and other channels, …
ادامه مطلب
She adds that mining activities from both operational and disused mines are found to pose a great risk to ground water quality "Both active and abandoned mines may contribute to groundwater contamination. Mining waste can infiltrate groundwater through leaching, surface runoff and seepage from tailings. Therefore, through …
ادامه مطلب
When cyanide salts are used to extract gold, mercury cyanide complexes that form enhance mercury mobility and increase mercury concentrations in groundwater. In one instance this resulted in mercury contamination of drinking water supplies where removal to an acceptable level could only be achieved at an exorbitant cost.
ادامه مطلب
Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. ... Road salt, toxic substances from mining sites, and used motor oil also may seep into groundwater. In addition, it is possible for untreated waste from septic ...
ادامه مطلب
They present new approaches and/or novel concepts in mine water studies and provide fresh insights to some current and emerging mine water problems. These papers can be roughly classified into three groups based on their topics: mine water inrush and disaster, mine water quality and contamination, and techniques for mining and …
ادامه مطلب
Gold mining can contaminate drinking water and destroy pristine environments, endangering the health of people and ecosystems.
ادامه مطلب
Mercury was used in the gold mining processes, and this led to mercury contamination in water and fish that is still impacting California today. California Gold Mining. This image is a reproduction of an original lettersheet published in 1855. The illustrations show the different methods and technologies used to mine gold, from the large flumes ...
ادامه مطلب
Special precautions are required to preven t groundwater contamination. All mining and . ... Artisanal or small-scale gold mining has devastating impacts on the environment due to negligence of ...
ادامه مطلب
Farmers say two major gold mines in central western NSW could be too much for their groundwater as they wait to learn the impacts of damage that halted underground operations a month ago.
ادامه مطلب
Gold mines almost always pollute water — 74% of operating gold mines polluted surface and/or groundwater, including drinking water When gold mines don't …
ادامه مطلب
Reports of environmental problems occasioned from gold mining activities had prompted the groundwater vulnerability prediction/assessment of the study area. This was with a view to identifying factors responsible for the probability of groundwater contamination as well as developing empirical (LR) model and map that predict the …
ادامه مطلب
7.1 Gold Mining. Water pollution caused by gold mining is a major cause of mercury contamination. Gold is often extracted from other minerals using mercury in small-scale gold mining. Gold is left behind when miners burn off mercury mixed with ore. In this process, mercury levels in the environment, in particular rivers, are elevated.
ادامه مطلب
Gold mining has increased the prevalence and occurrence of heavy metals contamination at the Earth's surface and is causing major concern due to the potential risk involved. This study investigated the impact of gold mine on heavy metals (As, Cd, Cr, Cu, Pb, Hg, Ni, Fe, Mn, and Zn) pollution and evaluated the potential health risks to local …
ادامه مطلب
Artisanal gold mining in the Ponce Enríquez, Portovelo-Zaruma and Nambija areas of Ecuador has resulted in extensive contamination of the fluvial environment by mercury (Hg) andpotentially toxic ore-related elements including arsenic (As),cadmium (Cd), copper (Cu), lead (Pb) and zinc (Zn). Thisoccurs principally through the fluvial dispersion …
ادامه مطلب
The Eastern Desert in Egypt is a significant gold-mining region, and its gold mine is one of the world's oldest. The presence of tailings and slag piles in the vicinity of historical mining sites can give rise to environmental risks for the surrounding soil, water, and air. These hazards primarily result from erosion and the interaction between these …
ادامه مطلب
Victoria Gold's Eagle Mine faces a severe environmental crisis with cyanide contamination in groundwater. Yukon government races to contain the damage and prevent further ecological impact.
ادامه مطلب
There are several ways in which gold mining can affect water quality. Some of the following information is taken from the Safe Drinking Water Foundation online article, "Mining and Water Pollution." Local photos are displayed, pertaining to Buckhorn Mountain and the associated facilities. Introduction Water is essential to life on our planet. A …
ادامه مطلب
Groundwater is a crucial resource that sustains various human activities, but it is vulnerable to contamination from diverse sources. Therefore, assessing the vulnerability of groundwater and mitigating contamination …
ادامه مطلب
Arsenic contamination of groundwater has been documented in parts of Karnataka where gold mining and related operations have taken place. The Hutti Gold mining zone of Raichur district, as well as the abandoned gold mining zones of the present Yadgir district, serve as notable examples.
ادامه مطلب
This study demonstrates the need to promptly identify and remediate groundwater sources of drinking water in gold mining communities that potentially have a high risk of disease. It also shows the usefulness of statistical models as tools for guiding local authorities to prevent groundwater contamination.
ادامه مطلب
Gold mining uses chemicals that are discharged into rivers without any control when there are no good mining practices, generating environmental and public health problems, especially for downstream inhabitants who use the water for consumption, as is the case in Monterrey township, where the Boque River water is consumed. In this …
ادامه مطلب
Abstract Heavy metal pollution in mining areas is a major cause of groundwater contamination, characterized by high toxicity, difficult degradability, and …
ادامه مطلب
Mining of metals such as gold, silver and copper results in the exposure to water and air of rock ore containing sulphides. This leads to the formation of several …
ادامه مطلب
Abstract Mining of gold in the Welkom and ia areas of the Free State Province in South Africa has produced numerous gold mine tailings, which contain a variety of contaminants. The extent of contamination of groundwater in the area was studied …
ادامه مطلب
Exploratory modelling of the impact of gold mining on groundwater in a strategic water area of South Africa was undertaken. A systems dynamics (SD) model was developed to simulate the impact of gold mining on water quality, focusing on groundwater contamination risk, within the context of competing developmental …
ادامه مطلب
Heavy metal pollution in mining areas is a major cause of groundwater contamination, characterized by high toxicity, difficult degradability, and easy accumulation, and the source of pollution is ...
ادامه مطلب
Mining of gold in the Welkom and ia areas of the Free State Province in South Africa has produced numerous gold mine tailings, which contain a variety of contaminants. The extent of contamination of groundwater in the area was studied by measuring several water quality indicators at eight sampling sites, and within three …
ادامه مطلب
Mine drainage is metal-rich water formed from a chemical reaction between water and rocks containing sulfur-bearing minerals. Problems that can be associated with mine drainage include contaminated drinking water, disrupted growth and reproduction of aquatic plants and animals, and the corroding effects of the acid on parts of …
ادامه مطلب