Effects of Mining
Yu Bo
Introduction
The effects of mining to the environment include formation of sinkholes, erosion and sedimentation, groundwater, loss of biodiversity or habitat modification, soil contamination, surface water by mining chemicals, acid mine drainage creation, fugitive dust emissions, release of cyanide and other chemicals (International Atomic Energy Agency 2005). At times, additional forest cataloguing takes place in the surrounding area of mines so as to enlarge the room available for storage of produced soil and debris. Other than creating ecological damage, the contamination that results from chemical leakages also affect the local population’s health. Additionally, some methods of mining might have considerable public health and environmental effects. Attrition of the exposed hillsides, tailings dams plus the resultant drainage siltation, mine dumps, rivers and creeks can drastically impact the adjoining areas (Betournay 2011). In wilderness areas, mining might cause disturbance and destruction to habitats and ecosystems, and in farming areas, it might destroy or disturb the croplands and productive grazing. Moreover, mining in urbanized environments might produce dust pollution, visual pollution and noise pollution.
Acid Mine Drainage
The rock and soil unearthed to expose the minerals of interest plus the tailings and waste rock formed during the valuable minerals processing often consist of sulfide minerals like pyrite which when exposed to water
When asked to think of coal mining, what comes to mind? A mountain with a hole cut into the side of it with a set of railroad tracks disappearing into it? Maybe an old mine car or two full of some rocks or coal, with a pickaxe and shovel leaning against it. A few guys with hard hats covered in a black powder coming walking out of the mine pushing a car or two full of coal. The technology has advanced but the process is basically still the same as well as the outcome. Coal is retrieved from underground and taken to factories to be burnt to create electricity or to fuel the steel mills.
Fossil Fuels are extremely harmful to the environment, especially in the ways the fuel is obtained, such as mining or hydraulic fracturing. Coal, a commonly used fossil fuel, can be obtained by strip mining, mountaintop mining, or underground mining (“Coal Explained”). Strip mining has disastrous effects on the environment because of the destructive nature of the process, which removes all soil, rock, trees, and plants above coal deposits. The runoff from this pollutes streams and rivers nearby, which can harm aquatic life and disfigure the body of water,
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 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
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
Tens of business closed up, which directly affected a large number of households. The coal mining operations companies also left environmental contaminants in the environment. Pollutions from coal mining have a direct effect on water, land air. Some of the pollutants contaminate ground water, surface water and impact on other land-uses. Besides the slope failure and explosion, environmental impact from coal mining causes erosion; leachates production, which seeping into ground water, and dust pollution. Heavy metals compound like lead, cadmium and arsenic dominates coal mining sites (Bhuiyan, Parvez, Islam, & Dampare, 2010). These metals are toxic to plant and animal. Some absorb some of these dissolved metals and introduce them into the food circle. When rainwater mixes with coal waste, the runoffs becomes acidic, which reduce PH of surface waters. (Komitas, 2001) Population inhaling coal dust suffers black lung disease and other complication like lung cancer, and heart failure (Finkelman & Orem, 2002). Coal mining in uranium mines is another source of radioactive exposure. Another environmental impact from coal mined lands includes emission of greenhouse gasses. Future land redevelopment in grand Cache, must deal with this issues before development could take
Deforestation’s accompaniment is erosion. Since much of strip mined land lacks proper restoration, weather causes further loss of soil and vital nutrients needed for native vegetation to grow. “Mountain Top Mining and Valley Fills Report” published by the EPA cites KA Harper and others educated and conducting studies in the fields of biology, environmental studies, and renewable sources. According to Harper, the change in mineral content of land affected by surface mining prohibits growth of indigenous plant life and allows foreign plant life to invade, changing the areas ecosystem (Harper).
A controversial topic commonly debated among society is the construction of coal mines. Although they potentially contain great economic promise and access to more resources, they also harm the surrounding environment and increase carbon dioxide emissions.
The mining process involves many big vehicles and other technology that release huge amounts of pollution into the atmosphere speeding up global warming and causing climate change.
Despite assurances, no mine has ever not polluted the surrounding area. Pollution can affect the surrounding wilderness for hundreds of years. In 2015, when the Animas River was polluted from a mine, 300 million gallons of wastewater were leaked into the river(CNN). The lead levels were 1200 times higher than normal after the spill. Consequently, the PolyMet mine could prevent future generations from enjoying the untouched wilderness in the years to come. In addition to pollution, the mine will also remove several wildlife habitats. Urban sprawl has led to land turned into shopping malls and homes, so the mines will be piling onto the problem of rapidly receding wilderness.
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.
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.
Since the Industrial Revolution, natural resources have been under increasing pressure. The significant changes in the amount of natural resources we have left have led to many issues, such as global public health and global development. Other areas affected include the loss of forest, water and air pollution, decrease in fresh water supply and degradation of soil. Today we are currently seeing dramatic increases in global population. As the world’s population continues to rise, natural resources will continue to dwindle as long as we remain the same. The one thing that I would say is the most challenging for humans is being able to advance in life, but still not destroy the environment. If you look at most developed countries, it is evident that they consume resources way more rapidly than developing countries. The problem with this is that all of these countries are consuming faster than they can produce. Places like Africa and Asia are experiencing population momentum. These areas have a tendency for population growth that continues to grow because of the high concentration of people having kids. Better living conditions are definitely needed in these countries because of the limited amount of resources being consumed by these regions. The over exploitation of these resources will eventually lead to problems for future uses.
Mining Many of the planet's rainforests lie over rich mineral deposits. The mining process releases harmful toxins, like mercury and cyanide which are often used in the gold extraction process, into local streams and river, polluting both the waters and the surrounding lands. There is, however, good money in the mining industry and many residents are encouraged to work in the mines.