As one of POPs, PCB pollution has a unimaginable impact on the environment. PCB mainly comes from the extensive use of PCB factories worldwide, such as the motor factory uses PCB as insulating oil, and chemical plant extensive uses PCB as heat carrier and lubricating oil. The corrosion resistance of coating in ship contains PCB, so if it is dissolved by seawater, it is also a considerable pollution source. PCB from such sources enters the drainage system with the forms of waste oil, slurry, and paint peeling, deposits on the bottom, then slowly flows to the water, and pollutes ecology system. PCB in the atmosphere are mainly attached to the particles, and attached on the suspended particulate matter in the water. Under the condition of strong agitation or the presence of surfactant, PCB can be partially soluble in water. The oil polluting the sea can cause PCB disperse in water, and flow along with water. A lot of PCB dissolve in the oil film floating in the surface of sea and make the surface layer of plankton suffer serious damage. After PCB pollutes the atmosphere, water and soil, it enters the organisms through the food chain.
It is estimated that the total PCB reach 250 thousand to 300 thousand tons in ocean, soil, and atmosphere all over the world, with a wide range of pollution. From the seal in the North Pole, the yellow flesh in Galapagos, to the sea birds' eggs in Antarctic Pole, it can be detected with PCB, so the PCB pollution has become a global problem. After PCB is absorbed by people or other animals, it can widely distribute throughout tissues, among which the fat has the most of content. The test on mammals with acute toxicity of has showed that rabbit is 8 ~ 11 ...
... middle of paper ...
...lychlorinated biphenyls. The methods mentioned above can be taken full use to deal with the PCB pollution.
Falck Jr, F., Ricci Jr, A., Wolff, M. S., Godbold, J., & Deckers, P. (1991). Pesticides and polychlorinated biphenyl residues in human breast lipids and their relation to breast cancer. Archives of Environmental Health, 47(2), 143-146.
Fein, G. G., Jacobson, J. L., Jacobson, S. W., Schwartz, P. M., & Dowler, J. K. (1984). Prenatal exposure to polychlorinated biphenyls: effects on birth size and gestational age. The Journal of pediatrics, 105(2), 315-320.
Safe, S. (1990). Polychlorinated biphenyls (PCBs), dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and related compounds: environmental and mechanistic considerations which support the development of toxic equivalency factors (TEFs). CRC Critical Reviews in Toxicology, 21(1), 51-88.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- The relationship between the report and my job is the usefulness of documentation, which will contribute to future projects in the company. By documenting the processes of creating the PCB future workers in the company could use this information to their benefit. Future projects that require the creation of PCB will be made much quicker, since everything has been done before. By analyzing the successes and failure of this project, future projects could be made much better. The time estimation of a project of this magnitude can be made more accurate.... [tags: Business Production]
857 words (2.4 pages)
- In the prenatal development of a child, they are often extremely sensitive to any biological or nonorganic materials that the mother comes into contact with, which could benefit or hinder their overall development In 1977, synthetic chemicals known as Polychlorinated Biphenyls, or PCB’s, commonly used as coolants and lubricants in electronics was banned in the United States (Association of Reproductive Health Professionals, 2010, para.15). Upon later investigation of the chemicals, they were found to have debilitating effects on prenatal development With the ban placed on the chemicals, many were often placed into landfills and other waste facilities, where the chemical was able to flow into... [tags: Health ]
1095 words (3.1 pages)
- Introduction This document will list sites where information can be found to assist with preparing an external environment analyses. An explanation will be given to describe what information can be found on the website for each of the Porter’s Five Forces and the PEST analysis. Two sources will be provided for each variable. Porter’s Five Forces Threat of new entrants Company websites provides information on new entrants and competition. Kraft Food Group, Inc. URL: http://www.kraftfoodsgroup.com/home/index.aspx Pandora Group provided a strategic report that covers Porter’s Five Forces variables.... [tags: PEST analysis, Porter's Five Forces]
572 words (1.6 pages)
- Coal mining, in particular, strip mining has become the latest casualty of the growing green movement in the United States. What is strip mining. Encyclopædia Britannica Online defines strip mining as the removal of vegetation, soil, and rock above a layer of coal, followed by the removal of the coal itself (“strip”). Most Americans don’t realize the impact this material of biological origin that can be used as a source of energy (“fossil”), or fossil fuel, has on their everyday lives or the nation’s economy.... [tags: Environment ]
846 words (2.4 pages)
- Coal mining, in particular, strip mining has become the latest casualty of the growing green movement in the United States. What is coal mining. The Encyclopedia Britannica defines strip mining as the removal of vegetation, soil, and rock above a layer of coal, followed by the removal of the coal (strip). Most Americans don’t realize the impact this fossil fuel has on their everyday lives or the nation’s economy. According to the U.S. Energy Information Administration, the mining industry directly employs some fifty thousand Americans with nearly half that number working in the more specific field of strip mining, or mountain top removal mining (Average).... [tags: Environment ]
853 words (2.4 pages)
- Environmental Psychology Article Analysis Environmental psychology is concern with real problems that occurs from the environment that affects the quality of human’s and other living species life. Research applies that the environment and human’s are unite as one and both depends on one another to stabilize the earth. The environment influences the individual’s behavior, mood, emotions, motivation, or psychological processes to either adapt or adjust to environmental changes. One variable in the environment that is responsible for mood changing that affects the individual’s behavior is light.... [tags: Environment ]
918 words (2.6 pages)
- My essay focuses on the county of Greater Manchester in North West England. A thriving metropolitan area, the county has been a place of interest since its rise in the Industrial Revolution. Greater Manchester is a landlocked county in the North West region of England. The Pennine mountain range runs along its northern and eastern borders, whilst the West Pennine Moors are found on its western border. To the south lies Cheshire, a flat county with large plains left by glaciers in previous Ice Ages.... [tags: Environment Economics Geography]
1051 words (3 pages)
- Analysis of the External Environment of Business A business' is commonly defined as an organisation which provides goods or services in addition to transforming input into output. Its objectives can either be profitable or non-profitable. One of the main requirements that must be fulfilled for a business to exist is that it must act and react to activities and occurrences beyond that of the organisation. These factors that happen outside of the business are known as external influences or factors.... [tags: Business Technology Analysis]
1681 words (4.8 pages)
- Environment Analysis: Creative Confections "I've always liked to be adventurous with food, especially desserts," said Lavonne Temple, founder of Creative Confections (CC), a small and emerging specialty bakery in Jacksonville, Florida. Starting with cake and candy recipe experimentation in 2002, Temple developed a tidy little business selling scrumptious specialty cakes and candies from a home-based operation. Increasing demand for Temple's upscale homemade confections recently poised CC on the brink of major expansion.... [tags: Business Market Analysis Strategy]
1356 words (3.9 pages)
- Introduction (Graphics Not Available) The world has grown increasingly complex, resulting from the greater interdependence among world economies (Thompson, 2002). Successful organization is largely determined by how well the organization adjusts all its tangible and intangible properties to keep itself on track with its surrounding (Armenakes & Bedeian, 1999). Strategy was concerned to manage firm’s activities and resources to the environment in which it operates. This essay will analyse the micro and macro external environment in the part five years (2000 to 2006) of IBM Company by using PESTEL and five forces model to analyse in the first part.... [tags: IBM Business Analysis]
1765 words (5 pages)