MINING
ICMM (International Council on mining and metals) has conducted ten case studies of “mining countries” and with better methodology to have better understanding and assessment, they found out that mining may contribute to national economies. According to (ICMM, 2010) mining may help to reduce poverty and indirectly induce employment. From mining too, it helps to increase government revenue to help increase development of the country.
Mining project starts with mineral ore exploitation and ends with post-closure period. Generally, each phase of its activity is influenced and associated with different environmental impacts. The first phase of mining is start with exploratory phase. During this phase, surveys are made and that include
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Metallic ores contain elevated levels of metals but they generate very large quantities waste called tailings. When active mining ceases, the mining sites are closed. This is the last phase of mining activity, the post-closure period. The objective of site reclamation is that the site should be return to the pre-mining conditions. The impacts persist for decades or even centuries.
Perhaps the harmful effects of mining operations are due to mining technology and techniques, which include enormous open pits in the ground. At a very beginning of mining activities, the impacts have already started and the effects will last for decades. Trees are cut down to build road in order for the large machineries to access as shown in Appendix A. Deforestation occurs and this may lead to soil erosion.
Before environmental laws and standards were adopted, most of the mining company dumped tailings (wastes) in the nearest location. Extracting metals use high demand of water and for water disposal. It pollutes fresh water and as a result water is contaminated with harmful constituents such as mercury (Appendix B). Example of former open pit mine is Butte, Montana known as the Berkeley pit (Appendix B). It was closed in 1982 but the pit and its water present a serious environmental issue. In 1995, there was a flock of snow geese landed in the pit and a total of 342 carcasses were found and today, Berkeley pit consists with highly contaminated water as stated by (Barbey, 2009).
Another
Imagine drifting slowly on a canoe while fishing one of Minnesota's crystal clear waters on a beautiful, sunny day. Now imagine being interrupted by the loud, ongoing sounds of drilling and being told the fish were too dangerous to eat. This is only one of many potential harms of sulfide mining. PolyMet, a new mining company would like to bring sulfide mining, also known as copper-nickel mining to Minnesota. This would involve the extraction of copper and various other metals from sulfide, hence the name. The sulfide that comes out of this type of mining can have serious consequences on the environment. Events that occurred in the past and facts mentioned in the books titled Taconite Dreams by Jeffrey Manuel and Fractured Land by Lisa
Minerals can affect society in many ways for example; Surface mining destroys vegetation across large areas, increasing erosion. Open-pit mining uses huge quantities of water. Acid mine drainage is pollution caused when dissolved toxic materials wash from mines into nearby lakes and streams. Minerals is approximately 80 percent of mined ore consists of impurities that become wastes after processing. These wastes, called tailings, are usually left in giant piles on the ground or in ponds near the processing plants (Figure 12.9). The tailings contain toxic materials such as cyanide, mercury, and sulfuric acid. Left
The waterways can be divided into categories of water that has been affected by the Summitville mine and water that has not been affected. Based on the location of the waterways, the Beaver Mud Dump, the Headwaters of Wightman Fork, Schinzel Flats, Wightman Fork below mine, and the small creek from tailings pile would be directly affected by the contamination initiated by mining activity, while the Cattle Guard, Iron Creek, Alum Creek, Bitter Creek, and waterways around the Alamosa River would not be affected or as affected by the mining activity (refer to Figure 1). From the data collected this year, it can be inferred that the Beaver Mud Dump is by far the most metal-polluted body of water in the area; though the waterways affected by
Surface mining began to replace traditional underground mining around WWII (Bozzi 116). Rather than digging into the mountain to extract the coal, strip mining involves removing the overlying soil and rock that covers the coal deposits (Lutz 1). It seemed appealing at first because the previous known dangers of black-lung disease and cave-ins were now limited with the surface mining method (Bozzi 116). However, surface mining came with it’s own problems, a lot of them being more serious and irreversible than underground mining (Allen 182). This method of surface mining was the spark that created the trend of mountaintop removal (Bozzi 117). Mountaintop removal is the complete destruction of the mountain peak in order to reach coal
The families that live near the mine also face being diagnosed with dangerous side effects. Since the ground becomes polluted with the chemicals, most homes in the surrounding area don’t have running water because the aquifers are polluted by said chemicals that originate from the mine. And the air becomes toxic also, toxic levels of arsenic, fluorine, mercury, and selenium is emitted by coal fires, entering the air and the food chain of those living nearby. These pollutants affect the water also, making it dangerous to any living life form. It causes deformities and creates birth defects if ingested into the body (Breitenender 2). And to an extent, causes death if the water is drunk regularly. It can go unnoticed also if people don’t check their water. And if a person is unfortunate enough to live near these areas, then he likely has no running water due to the pollution of his local aquifer. People are deprived of a vital source to live and they travel far to get water. And these areas are arid which means water is a necessary
“It wrecks vast areas of boreal forest through surface mining and subsurface production. It sucks up huge quantities of water from local rivers, turns it into toxic waste and dumps the contaminated water into tailing ponds that now cover nearly 70 square miles.”
Open pit mining is used when a resource is spread out in a rock formation. An enormous hole is dug, and the source is then removed. Open Pit mining is generally used for mining for gold, diamonds, coal, copper and other resources. This method consumes a large amount of habitat that becomes lost. Once mining is completed the pit will generally fill up with water.
The mining has become a controversial topic due to the mass publicity regarding the potential danger of nuclear power and uranium mining, not to mention the objections by some Indigenous groups. The controversy is significant
Things like mining too far into a wall that connects to an older mine, thus increasing the danger of a collapse, is common. Other practices include shoddy dams that contain the slurry, a mixture of water and fine particles of coal, which do not always meet structural regulations that can and have broken and flood nearby communities (Light and Light, 2006). There are other environmental issues that are associated with coal mining. Acid mine drainage is the result of sulfide minerals being exposed to oxygen. This produces sulfuric acid and can dissolve heavy metals from the waste rock, making it bioavailable. Without proper treatment, this will poison the water systems near that mine and will seep into the streams, creeks, and even ground and well water. The water turns orange and is impossible for anything to live off of the water or in it (Kirsch, 2014). Another issue of coal mining is airborne coal dust, which can result in Black Lung disease. This is caused by inhaling too much coal dust and is common in miners, but with surface mining becoming more prevalent, more coal dust is being released into the air and drifting down to the communities. More children and elderly people are having respiratory problems that many believe are because of
Open pit mining creates a hole where groundwater will collect instead of flowing naturally into the watersheds. What water will flow into those watersheds will be contaminated by mercury--from the processing of the ore into taconite pellets and sulfuric acid, causing incredible damage to the ecosystem of the rivers and Lake
Water contamination is the next major concern of environmental groups. The Environmental Protection Agency, the governmental regulatory agency created in 1970 to manage the enforcement of environmental policy, states its concerns in a letter to the U.S. Army Corps of Engineers in 2009 (United). Specifically addressing mines in West Virginia and Kentucky, the EPA expressed serious concerns over water pollution from strip mining (“EPA”). The rupture of an ash dike at the Tennessee Valley Authority’s Kingston Fossil Plant in Roane County, TN on December 22, 2008 granted credibility to the EPA’s concerns. In an article published by in Environmental Health Perspectives, Rhitu Chatterjee comments on the poisonous substances contained in ash produced from processing coal, listing
A huge problem with deep sea mining is that the sea/ ocean waters is something that humans have not even begun to scratch the surface of grasping a full understanding of it. The sea is the largest biological habitat on this earth and is not understood. There are so many undiscovered incredible organisms are all potential he homes by deep-sea mine. Extreme temperatures, pitch black darkness and a giant amount of bio diverse city, most of which are very sensitive to any disturbance just a little light could throw them off. Is sure of all this, with such a limited understanding of all these concepts and increasing demand for mining could result in a detrimental damage to the environment which is possibly irreversible. Impacts including the degrading of habitats, possible extinctions from oil being spelled in the work process to toxic plumes.
In our days, mining for resources is inevitable. The resources we need are valuable in everyday life. Such resources mined up are coal, copper, gold, silver, and sand. However, mining poses environmental risks that can degrade the quality of soil and water, which can end up effecting us humans if not taken care of and many of the damages are irreversible once they have occurred.
There are lots of benefits that surround the mining sector. Not just the impact it would have on the economy, but other factors as well. An economic impact it has is that communities will receive revenue when mines are being established, this bring about a change and development in the local community. This is crucial especially in areas where they had little revenue coming, the mines will bring in a huge change in that environment.
The mining industry has seen an explosive growth from the past few decades. It has played an important role in economic growth, infrastructure development and a raise in the living standard of the whole world. According to the Australian National Accounting System, the mining sector has made contributions of 9.8% GDP growth to the Australian economy between 2008 to 2009 (Australia Bureau of Statistics, 2012). However, the mining industry has caused many environmental issues such as adverse effect to air, land and water quality and continues to affect global environment as a whole. According to the World Health Organization, it evaluated that 25% of worldwide death are directly associated with environmental pollution (Blacksmith Institute, n.d). This essay will outline the environmental issue raised by the mining industry with pinpoint focus on the effects to air, water and land. It will also provide strategies for mining companies to improve the environmental conditions.