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Environmental pollution causes and effects
Environmental pollution causes and effects
Environmental pollution causes and effects
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Recommended: Environmental pollution causes and effects
1. Introduction
Heavy metals and their salts (Cu, Zn, Hg, Pb, Co, Ni,) are widespread industrial pollutants. In the waters they come from natural sources (rocks, the surface layers of soil and groundwater), the wastewater of many industrial enterprises and precipitation, which are polluted with smoke emissions. Heavy metals as trace elements are constantly encountered in natural waters and aquatic bodies. Depending on the geochemical conditions of the wide variations in their level.
Heavy metals are quite stable. Entering the ponds, they are included in the cycling of matter and subjected to various transformations. Inorganic compounds are rapidly bind buffer system of water and transferred into poorly soluble hydroxides, carbonates, sulfides and phosphates, and also form organometallic complexes are adsorbed to the bottom sediments.
Under the influence of living organisms (bacteria, etc.) mercury, tin, arsenic undergo methylation, becoming more toxic alkyl compound. Moreover, metals can accumulate in various organisms, and transmitted in increasing amounts with food chain. Particularly dangerous mercury, zinc, lead, cadmium, arsenic, since the intake in humans and higher animals can cause poisoning. Accumulation coefficient material ranges from them from hundreds to several thousands. There many heavy metals, however in this project we have focused on Co (II). Because
Co (II) appears to be one of the essential elements to human body at low concentration.
However, when cobalt is too concentrated, it may damage human body and may cause diseases such as asthma and pneumonia1. Cobalt pollution may be cause from car gas turbines, used in many alloys (super alloys for parts in gas turbine aircraft engines, corrosion r...
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...rogram, I feel ready to transfer to a four-year colleges, and participate further in the Honors Program.
7. References
1. "Cobalt - Co." Cobalt (Co). Lenntech B.V, n.d. Web. 28 Nov. 2013. .
2. Akpor, B. 2010, International Journal of the Physical Sciences, 5, 1807-1817.
3. Park, D. and Yeoung-Sang, Y. 2010, Biotechnology and Bioprocess Engineering, 15, 86-102.
4. Rehm, B. 2009, Alginates: Biology and Applications. N.p.: Springer, New York, USA.
5. Gulay, S. 2009, Immobilization of Thermophilic Recombinant Esterase Enzyme by Entrapment in Coated Ca-Alginate Beads. Thesis. Graduate School of Engineering and Sciences of Izmir Institute of Technology.
6. Rush, R. and Yoe, R. 1954, Anal. Chem., 26, 1345-1347.
7. Kotrba, P., Mackova, M. and Macek, T. 2011, Microbial Biosorption of Metals. N.p.: Springer, New York, USA.
It can kill you! Yeah, this thing is silent and deadly! Colorless and odorless, you never know where it can be leaking from. Can you smell? Nope! Can you taste it? Nahhh! Have you figure it out yet? The thing that might take your life right now, or maybe tonight or maybe tomorrow. No? Well, I’ll be nice and tell you. The poisonous demand that lurk through the air so free and careless is Carbon Monoxide or CO. In this paper, you will learn all what and how it can kill you plus how you can protect yourself from Mr.CO
Today pollution is very high in both inland and marine waters. All different types of water pollution are contributing factors in this problem. Here are some things that are associated with pollution: Pathogens: Pathogens are disease causing bacteria, viruses, and protozoa. They usually come from human sewage. As pathogen numbers increase, so does the risk of human health.
There are six common pollutants in the air, which include ozone, particulate matter, carbon monoxide, nitrogen oxide, sulfur dioxide, and lead. These pollutants led to many different symptoms across the United States. Ozone pollution leads to impaired respiratory system. Particulate matter affects respiratory systems, causes cancer, and premature death. Carbon monoxide affects the bloodstream and reduces oxygen to the body’s organs. Nitrogen oxide causes influenza. Sulfur dioxide effects respiratory illness and pulmonary defenses. Lead causes effects in the liver,
People who work or exercise outside for a lengthy period are also vulnerable. Exposure to air pollution increases sensitivity to allergens, impairs lungs, causes asthma attacks and death (Climate change, 2007). Air pollution can cause short-term respiratory symptoms such as coughing, throat irritation, and shortness of breath (California’s drought, 2015). The most harmful pollutants in the air are ozone, fine particles, and air toxics. Since the drought causes warmer weather, levels of ozone or smog increase in the air. Ozone is the principal component of smog and it is dangerous on ground level, which affects human health, crops, and buildings. Ozone smog is formed when vehicle and factory pollution react with sunlight and heat (Climate change, 2007). The lack of storms due to the drought eliminates the natural cleansing effect of precipitation. The low levels of precipitation trap fine particles on ground level. Fine particles in the air are harmful when inhaled and can heighten respiratory illnesses such as asthma and bronchitis. Air toxics are the chemicals in the air that can cause cancer or serious health problems. Mercury, asbestos, and benzene are dangerous air toxics and diesel exhaust particulate is the number one airborne carcinogen in California (California’s drought, 2015). Allergens in the air also affect pollution as
The cancer risks also caused by long-established activities such as working in an oil refinery or living near a high voltage power line are not large. Apart from skin cancers due to sunlight, the only substantial and widespread cancer risk known to be caused by an avoidable environmental factor in developed countries is the further increase in lung cancer among smokers caused by indoor radon escaping from the ground or from building materials, although both indoor and outdoor air pollution from fossil fuels may also contribute to the risk in smokers. The risk to non-smokers is relatively trivial in developed countries, but burning fossil fuels indoors without adequate ventilation certainly contributes to the high lung cancer rates even in non-smokers seen in parts of China.
The major source of mercury is the natural degassing of the earth's crust, including land areas, rivers, and the ocean, and this source is estimated to produce on the order of 2700 to 6000 tons per year. The total man made release into the atmosphere is about 2000 to 3000 tons, and it is difficult to assess what quantities of mercury come from human activities and what quantities from natural resources. Run-off into natural bodies of water may contain mercury from both anthropogenic and natural sources, so it is difficult to assess how much released into the atmosphere is from man made or natural sources. Nevertheless, mining, smelting, and industrial discharge have been factors in the environmental contamination in the past. For instance, it is estimated that loss in water effluent from chloralkali plants, one of the largest users of mercury, has been reduced to 99% in recent years. Industrial activities not directly employing mercury or mercury products give rise to substantial quantities of this metal. Fossil fuel may contain as much as 1 ppm of mercury, and it is estimated that about 5000 tons of mercury per year may be emitted from burning coal, natural gas, and from the refining of petroleum products. Calculations based on the mercury content of the Greenland ice cap show an increase from the year 1900 to the present and suggest that the increment is related both to an increase in background levels of mercury in rainwater and to man made r...
According to the U.S. Environmental Protection Agency, zinc ores contain only 3% to 11% metallic zinc. Along with the zinc, the ores usually contain other metals, including toxic metals like cadmium and lead. In addition, zinc itself, though necessary in small amounts, is harmful in high doses to both humans and animals. All these toxic metals can contaminate water, soil, and plants in the area surrounding the
Arsenic can be found in most drinking waters and foods. The amount that is accumulated is limited due to the body excreting it from the body. The arsenic that is not excreted may cause harm to bodily functions if it above a threshold. Arsenic is very reactive and may form more toxic analogs. Arsenic toxicity shows up rapidly and must be treated with chelation therapy quickly or face permanent damage. It is unable to be detected without equipment in food, because it does not change a foods texture or change the taste of food. It is element of choice for food industry but it can be quite
Ozone can cause part of your lungs to close off and make it harder to breathe.
...-monoxide-effects.aspx, http://www.bidmc.org/YourHealth/HealthNotes/StoriesofHope/CanCarbonMonoxidebeGoodforYou.aspx, https://www.osha.gov/OshDoc/data_General_Facts/carbonmonoxide-factsheet.pdf, http://www.health.state.mn.us/divs/eh/indoorair/co/, http://www.linde-gas.com/en/products_and_supply/packaged_chemicals/product_range/carbon_monoxide.html, http://greenopedia.com/article/effects-black-carbon-health-and-climate, http://esseacourses.strategies.org/module.php?module_id=170, http://www.britannica.com/EBchecked/topic/95021/carbon-monoxide, Department of the Environment and Heritage. 2005. Carbon Monoxide (CO). p. 1., Department of the Environment, Water, Heritage and the Arts. n.d. Carbon monoxide. p. 2., http://www.americanprogress.org/issues/green/news/2012/08/10/12007/soot-pollution-101/, http://www.airqualitynow.eu/pollution_environmental_problems.php#parag6
In conclusion, air pollution affects the immune system, making it weak and vulnerable to certain bacteria, illnesses, viruses and foreign invaders. Common diseases that are affected the most include asthma and allergies. Air pollution in general has been seen to modify the immune system's handling of particular allergens. The exposure to toxins like dioxin can cause serious health problems for people. Having long-term exposure to this toxin is connected to weakening of the immune system, as well as the nervous system, endocrine system and certain reproductive functions. Hence, everyone has a particular level and exposure of dioxins in the body. Improving air quality is the key answer to avoiding any type of development of disease, but it is a long term goal that will require the help and commitment at the national and global level.
they create many breathing and heart conditions like cancer and other threats in the body, that is why children who are exposed through air pollutants are most likely to have pneumonia and asthma.
Water pollutants are of different types such as oxygen demanding wastes, disease causing agents, synthetic organic compounds, plant nutrients, inorganic chemicals and minerals, oils, thermal discharge and radioactive wastes. Of all these water pollutants, heavy metals and synthetic organic compounds cause majority of water pollution. Industries like paper and pulp, tanneries, textiles and coke ovens, pha...
The Causes of Water Pollution Water pollution is very harmful to the environment and living things. Water pollution can come from many different sources. If the pollution comes from only one source, such as an oil spill, it is called point-source pollution. If it comes from many different sources, it is called nonpoint-source pollution. Most water pollution affects the immediate area surrounding the source, but there are some types of pollution, such as hazardous, that can affect areas miles away from the source.
According to Ramos et al., (1994), the forms in which cadmium may exist in the different soil horizons and their distribution depend on the physical, chemical and mineralogical properties of the soil. Soil may be associated with several geochemical phases such as clay minerals, organic matter, Al, Fe and Mn oxides, hydroxides and oxyhydroxides, carbonates and sulphides which are common in tropical soils. The degree of association of Cd with these soil components is strongly dependent upon soil pH, the redox conditions, the extent of organic matter degradation, and the soil particle sizes (Onyatta and Huang, 2006; He and Singh,