Chemical Pollutants And Its Effects On Health And Environment

Coal is the dirtiest of all fossil fuels. When burned, it produces emissions that contribute to global warming, create acid rain and pollute water. With all of the talk surrounding nuclear energy, hydropower and biofuels, you might be forgiven for thinking that grimy coal is finally on its way out. On the other hand, coal is no sooty remnant of the Industrial Revolution - it generates half of the electricity in the United States and will likely continue to do so as long as it's cheap and plentiful . Clean coal technology seeks to reduce harsh environmental effects by using multiple technologies to clean. Coal is a fossil fuel composed primarily of carbons and hydrocarbons. Its ingredients help make plastics, tar and fertilizers. A coal derivative, a solidified carbon called coke, melts iron ore and reduces it to create steel. But most coal - 92 percent of the U.S. supply - goes into power production .Electric companies and businesses with power plants burn coal to make the steam that turns turbines and generates electricity. When coal burns, it releases carbon dioxide and other emissions in flue gas, the billowing clouds you see pouring out of smoke stacks. Some clean coal technologies purify the coal before it burns. One type of coal preparation, coal washing, removes unwanted minerals by mixing crushed coal with a liquid and allowing the impurities to separate and settle. Other systems control the coal burn to minimize emissions of sulfur dioxide, nitrogen oxides and

Clean coal is proposed as being an emission cleaner form of regular coal, because it reduces the amount of sulfur-dioxide, and nitrogen oxide that is produced by burning coal. It does this by removing impurities from the coal that are contributing to the higher emissions within regular coal, which is created through “clean coal technology”. Clean coal is obtained just like regular coal through either mining it or by mountaintop removal. A technique called coal washing is used to remove impurities, such as sulfur and other unwanted minerals, by washing them in a liquid to remove them.

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,

Clean coal technology usually addresses atmospheric problems resulting from burning coal. Historically, the primary focus was on sulfur dioxide and particulates, since it is the most important gas in the causation of acid rain. More recent focus has been on carbon dioxide (due to its impact on global warming) as well as other pollutants. Concerns exist regarding the economic viability of these technologies and the timeframe of delivery, potentially high hidden economic costs in terms of social and environmental damage, and the costs and viability of disposing of removed carbon and other toxic matter. More, the byproducts of coal power production range from fly ash sludge ponds full of mercury, arsenic, and sulfur in unlined ponds that can leak into the water supply.

Coal ash also contains selenium which is already needed in our body, but excess amounts can lead to impaired vision, paralysis, and even death. The ash contains a lot of lead, exposure to lead can cause numerous issues in your brain affecting your nervous system and can cause brain swelling. Arsenic which is found in the ash can be harmful, if ingested it can lead to nervous system damage and cardiovascular issues. If arsenic that is found in the ash is absorbed through the skin can cause skin cancer. Coal ash contain boron also can cause damage to the intestines and even death. The EPA is responsible for protecting the environment from these types of spills, but in the case of properly disposing the ash the EPA ruled that coal ash was classified as a non-hazardous material leaving it up to the companies to dispose of it as they want

One significant advantage of nuclear energy through the mining of Uranium is its carbon neutral energy production property (3). However, during a meltdown or another catastrophe, Nuclear reactors have the capacity to release significant amounts of toxic radioactive isotopes, such as Strontium 90, Cadmium 113 and Caesium 137, which has the potential to cause significant harm to health (2) and biodiversity (11). Coal on the other hand is a well-documented releaser of greenhouse gasses, with one tonne of coal generating 2.6 tonnes of CO2 alone. Globally, this accounts for 6.4 billion tonnes of CO2 per year, with this value progressively increasing (5). Further, the use of coal in electricity production results in the release of particulates into surrounding areas. Particularly in third world and developing nations where regulation on pollution is lax, this causes major tangible health risks to those who live near the plants- a report by the World Health Organisation estimates that deaths directly related to outdoor pollution from Coal-based electricity generation amounts to approximately 2 million deaths per year

Electricity generation from fossil fuels is responsible for a large share of Canadian carbon monoxide, nitrogen oxides, sulphur dioxide and fine particulate matter emissions.

The production of coal energy produces the most amount of carbon dioxide than any other method. It is a non-renewable energy source, and coal mines destroy most of the surrounding areas around it. With the recession going on, no one is buying into coal power plants at the moment which is an economy issue. (Center for Energy)

The article, “Coal and the Environment”, provides the readers will and understanding of how coal works and also how it is dangerous to our environment. Coal on its own is not dangerous to the environment but once the coal is burned, then pollutants are released into the air causing for less clean air. The government has taken a stand on the industries polluting the air we breathe in everyday with the Clean Air Act and the Clean Water Act. These two acts put restrictions on industries that allow for safer and cleaner air.

Coal seam gas is a much cleaner source than for example, burning fossil fuels. Water contamination

The coal is transported from the mines in many ways like by truck, train or barge to be used for the production of power and by the steel and coke industries. The power plants burn the coal which also pollutes the air and the rivers around them. 1 The steam plant that is located on the Mulberry Fork, the Locust fork steam plant, and the Greene County Plant that is located on the lower Black Warrior River need to have their pollution controls updated because they are so old.

Emissions from coal fired power plants contribute to global warming, ozone smog, acid rain, regional haze, and perhaps most consequential of all from a public health standpoint, fine particle pollution.

Coal releases dozens of hazardous substances that can be harmful to human health. These are just four of the many things that coal releases: Mercury, particulate matter, nitrogen oxides, and sulfur dioxide. Every one of these act on the nervous system to cause loss of intellectual capacity. Exposure to coal dust can lead to black lung disease, or pneumoconiosis, which took the lives of 10,000 miners worldwide over the last decade. Black lung disease is similar to diseases you can get from smoking tobacco for a long period of time. This disease is most common with coal miners, because they are constantly exposed to the dangers coal causes. Coal affects not only the human respiratory system, but also the cardiovascular and nervous system. This

Many scientific researchers have said that our environment has been filled with toxic chemicals, which us humans have had a part of. There are many different issues that should concern us surrounding these toxic chemicals. The major concern is that many of these toxic chemicals have been claimed to be causing damage to the health of humans and even other life forms. Another concern is that most of the theses toxic chemicals have just recently been produced; and by our environment changing everyday there is no telling what effects these toxic chemicals may have in the long run on the public 's health. Just about all of these toxic chemicals exist in the way they do because of humans. As humans we practice a lot of different activities that cause toxic chemicals to pollute our environment such as, agriculture, industrial, and many domestic activities as well. Many of the toxic chemicals that we produce and use don 't get used in a effective way, which causes them to be wasted, left abandoned, and disposed of. When toxic chemicals are not disposed of properly they effect the environment and the public 's health in a negative way.

CO2 is the most significant greenhouse gas, which mainly comes from the use of fossil fuels. Many people feel that content of CO2 in the atmosphere is the main reason for manmade global warming. The main sources of CO2 emissions involve electricity generation, industrial processes, fumes from transportation and commercial buildings and use. Emissions of greenhouse gases, such as CO2, to the atmosphere are expected to cause even more of a significant change in global climate (Davison, 2007). The main focus to try to reduce the amount of carbon dioxide in the atmosphere is to reduce the amount that is released from coal-fired power plants. Greenhouse gas emissions that involve the productions of electricity come from natural gas production and coal-fired power plant operations. Natural gas production accounts for twenty-four percent and coal-fired power plant operations accounts for seventy-five percent, while the other one percent is caused by other electricity generation operations. The main reason why coal-fired power plants have a higher percentage of emissions is because the sulfur content of coal is much higher than that of other fossil fuels (Jarmaillo et al., 2007). This proves that there is a great need to find an alternative fossil fuel to use instead of coal. Although coal is easy to mine, transport and process for the electricity generation process, it is also the