Heavy metal pollutant

Heavy metal pollutant An ongoing debate regarding the exact definition for heavy metal pollutant, there are many different definitions have been proposed. For example, some based on density, some on atomic number or atomic weight, and some on chemical properties or toxicity. The commonly definition of heavy metal is the element with a high (>5.0) relative density and atomic weight. Kyung Ah Moon(2007) said thatheavy metals as metal or metallic materials and described them as metals which are toxic and accumulated in the human body Heavy metals normally occurring in nature are not harmful to our environment, because they are only present in very small amounts. The heavy metals only become pollution when they show up in huge amounts due to industrialization. The word of pollution is an emotive term, meaning different things to differentpeople: a reasonable general definition might be ‘too much of something in the wrong place (Harrison, 1990). To many people, heavy metal pollution is a problem associat ed with areas of intensive industry. However, roadways and automobiles now are considered to be one of the largest sources of heavy metals. The heavy metals causing pollution are mercury, arsenic, copper, barium, cadmium, chromium, lead, and zinc .Toxic heavy metals in air, soil, and water are global problems that are a growing threat to the environment. The sources of heavy metal pollutants are metal mining, metal smelting, metallurgical industries, and other metal-using industries, waste disposal, corrosions of metals in use, agriculture and forestry, forestry, fossil fuel combustion, and sports and leisure activities. Heavy metal contamination affects large areas worldwide. Hot spots of heavy metal pollution are located close to industrial sites, around large cities and in the vicinity of mining and smelting plants. Agriculture in these areas faces major problems due to heavy metal transfer into crops and subsequently into the food chain.About half of the zinc and copper contribu tion to the environment from urbanization is from automobiles. For example, Brakes release copper, while tire wear releases zinc. Motor oil also tends to accumulate metals as it comes into contact with surrounding parts as the engine runs, so oil leaks become another pathway by which metals enter the environment. we know what is heavy metal pollution and the sources of it ,but what is the effect of it for our body. Generally, humans are exposed to these metals byingestion (drinking or eating) or inhalation (breathing).Working in or living near an industrial site which utilizesthese metals and their compounds increases ones riskof exposure, as does living near a site where these metalshave been improperly disposed.Heavy metals are dangerous because they tend to bioaccumulate in food chain. Là ¡szlà ³ (2008)said that Bioaccumulation means an increase in the concentration of a chemical in a biological organism over time, compared to the chemicals concentration in the environment. Compounds accumulate in living things any time they are taken up and stored faster than they are broken down (metabolized) or excreted. Now we are going to describe the kinds of heavy metals, their dangerous levels and the effects of these heavy metals to human health and environment. The heavy metals such asLead, Cadmium, Copper, Chromium, Selenium and Mercuryare very pollutants. Lead in humans, Long term exposure can occur acute or chronic damage to the nervous system on humans. Cadmium in humans, long-term exposure is associated with renal disfunction. High exposure can lead to obstructive lung disease and has been linked to lung cancer, and damage to humans respiratory systems. Copper is an essential substance to human life, but in high doses it can cause anemia, liver and kidney damage, and stomach and intestinal irritation. Effect of the Mercury is to cause damage to the brain and the central nervous system. Chromium (VI) compounds are toxins and known human carcinogens, whereas Chromium (III) is an essential nutrient. Breathing high levels can cause irritation to the lining of the nose; nose ulcers; runny nose; and breathing problems, such as asthma, cough, shortness of breath, or wheezing. Skin contact can cause skin ulcers. Allergic reactions consisting of severe redness and swelling of the skin have been noted. Long term exposure can cause damage to liver, kidney circulatory and nerve ti ssues (Martin,2009), so heavy metal cause extremely effect for human, but what about environment. Heavy metals may be used to extract gold and other raw materials from the earth, but its left behind an extremely destruction. Bilal (2006) writs that Soil and water are considered a last resort for most of the chemicals produced by the rights.heavy In natural pollution of environments, this pollution created through the dissolution of heavy metals with water during the natural cycle of water through the rocks or through the soil containing quantities of these metals such as mercury, lead, zinc, nickel, cadmium, chromium, copper, iron and others. This phenomenon exists in many countries, contamination may occur naturally in the ground because of the interactions of metals with sulfur oxidizing substances can activate such interactions the presence of nitrates that can come from many sources(Omadar,2009).Artificial pollution may occur pollution in streams that come from the mines of these tables contain heavy metals and high concentrations of these metals in turn can be grouped in th e structure of exposed rock due to direct contact with oxygen in such a phenomenon found in the eastern provinces of Germany, where in the work of extracting minerals , and types of industrial pollution, mineral processing and manufacture of the final, produces large quantities of industrial wastes that contain many types of harmful metals such as chromium, mercury, lead, nickel, cadmium .. Etc.. These wastes discharged into the open water or drainage systems without careful elimination and therefore the move waste into rivers and lakes are the primary sources of drinking water, and in many cases heavy metal penetrate the soil to the water basins due to the illegal discharge of contaminated water into the ground. Sources of pollution, heavy elements are multiple and vary depending on the type of heavy metal and raw materials but most of these sources are industrial waste or transfer of these elements of air into the water by dissolution in rainwater. The risk of contamination of hea vy metal elements: For the risks related to animals living in the aquatic environment, these heavy metals accumulate in their bodies and may lead to death in the event of a high concentration of heavy pollutants. While the health risks related to people up to him through the transition metals to fish and plants and then to humans through food, accumulate in the human body, causing serious illnesses by type of metal. There are risks associated with aquatic plants and soil planted with these plants that are irrigated with polluted water

Citizen Cane Questionaire

Citizen Kane Questionnaire View the movie CITIZEN KANE (1941) for discussion in class on week four and to submit week five. Be sure to view the film at least twice before workshop number four. Read the information in this syllabus about this movie. Research it online at http://www. filmsite. org/citi. html http://en. wikipedia. org/wiki/Citizen_Kane, http://www. imdb. com/title/tt0033467/, http://www. cinepad. com/reviews/kane. htm, etc. Then complete the following questionnaire A. Literary Elements (Describe in one or two sentences) 1. Structure (storytelling formatThe storytelling format for this film was more of an investigation kind of way, searching for the meaning of the word rosebud. Flashbacks used throughout the film to fill in information that could lead to the meaning of the words. 2. Plot (story) The story is about a man who becomes a tycoon. While gaining riches, wives and possessions he loses his soul. He dies and some journalists want to discover the meaning of his dyi ng words â€Å"rose bud†. 3. Theme (message) The theme message for this film is that money and power do not make a person. Not all the power and money one person may have is going to fulfill the happiness one desires. . Three moral issues in the story Power cannot buy happiness nor can it fulfill it. There were a few social issues, one of them being family and marriage issues such as divorce. Kane’s fame and wealth cannot save him from his secret relationship. B. Mise en Scene: Theatrical Elements (give two examples each, noting briefly what you have observed and where in the film) 5. Unusual Sets/Backdrops A. ) The scene where Kane and his wife were at a cafe or restaurant and the back drop was a wilderness or forest and they threw in animated birds flying through the backdrop.B. ) Another element was enormous fireplace at Kane’s residence. 6. Historic Costuming A. ) Their costumes represented the era and their social status. B. ) Kane wore a thick, heavy fur c oat that represented his status; having great deal of money. 7. Notable Makeup A) Kane’s makeup in the early stages young and youthful and at the end, it showed him 85 and old-marriage scene, young and when his second wife was leaving him, it depicted him old with a cane B) Makeup shown when his second wife dressed up to sing opera at their theatre she wore heavy makeup . Composition (vertical lines, ceiling framing) A. ) There is a ceiling frame scene, where Kane and his friend come across the reporter that had fallen asleep; on the review of wife’s performance. The camera focused on his friend using a low angle showing the corner of the ceiling his head. B. ) In the theatre, during one of the performances the camera scrolls up looking at nothing but the structure of the building. As the camera, scrolls up there were walkways or railing that went across the screen. 9. High key lighting (happy)A) When he meets his second wife and goes to her place she is lit up and lig ht depicting happy. B) There is high lighting used while watching the marching girls; cheering and happy music playing in background. 10. Low key Lighting (mystery) A. ) There is a face in the dark when Kane goes to meet someone for information about something. The dark shadow over the face shows that there is a secret. B. ) In the start of the film appears to be several men in a darkened room; appears mystererious, searching for answers. All men stay in the dark when that scene ends. C. Low key lighting used when fireworks launched into the sky. 11. Notable Acting (and movement) A. ) The end of the movie Kane destroys his second wife’s room, breaking glass, flipping tables over, throwing everything on the ground, showing his anger, frustration and pain. B. ) Notable acting when Kane slaps his second wife across the face when she was complaining about the reviews in the paper about her performance. C. Cinematography (give two examples each, noting briefly what you have observ ed and where in the film) 12. Notable camera angles (low angle, high angle, etc. A) There is an extremely low angle when the boy receives a gift. B) There is a low angle during one of the opera performances when the camera looks down at the singing coach sort of under the stage. 13. Notable Framing (two shot, three shot, four shot, foreground framing) A) There is a three shot frame when Kane is typing the review. B) The scene where in the background, through the window, a boy can be seen playing outside. C) There is foreground framing in the reflection shot from the window of Kane dancing. 14. Notable Framing (close-up)A) The scene when Kane says, â€Å"Rosebud† with an extreme close-up of his lips. B) At the end of the movie when camera zooms in on Kane’s childhood sled focusing in on â€Å"Rosebud† 15. Notable lenses (deep focus, fish eye) A) The scene with the boy playing in the snow, seen through the window while his mother signs documents has deep focus. B) The scene where Kane’s wife is laying in the chair, the meds on the table; seen up close and the focus remains clear to the bedroom door in the distance. 16. Notable Camera Movement (crane shots, hand-held, etc. A) There is a crane shot; camera breaks through the sign and into the broken skylight into the El Rancho Nightclub B) Crane shot- Emily went to Susan’s home and going up the stairs into her home is one depicted. 17. Forced perspective A) The wedding scene of Emily and Kane are using forced perspective of the White House. B) There is a Scene showing Kane’s home, gate seen in the background on top of the hill. D. Editing—Assembly and Printing of film (give two examples each, noting briefly what you have observed and where in the film) 8. Special Effects (animation, matting) A) There is animation in two of the scenes where they show you a map WB. B) There is also picnic scene where animated birds are flying. 19. Transitions (dissolves, wipes, fades) A) Dissolving scene is when Thatcher, Bernstein, Kane are in a room, three are at a table and Kane is in the back. That letter reading shows 1929 and it dissolves. B) Earlier scene in beginning of film shows monkeys then it proceeds and you see the castle . In all that area all picture is showing dissolving.C) The Xanadu scenes were also dissolving scenes. D) His campaign scene showing his face in the background also dissolves. 20. Montage A) The scene at the â€Å"breakfast† table shows marriage nice and sweet then shows it falling apart. B) Another scene; Thatcher calls Kane Charles at Christmas time and he opened a Christmas present. This portrayed Thatcher young, Kane young, then next scene is reading a letter from Kane, and he is aged. D. Sound (give one example each) 21. Diegetic music A) When Kane receives the trophy.B) After the scene where Kane is typing the review. 22. Non-diagetic music A) After Kane leaves in the trophy scene thee is non- diegetic music. B) Sound transition; there was clapping going from one scene to another. 23. Notable or unusual music A) There is notable military music by the Teddy Roosevelt scene in the beginning of the film. B) The scene where you see the mannish woman there is echo and ironic music then you hear audio the audio transition and are less subtle 24. Layering A) There was voice overlay at the beginning with Thatcher and two employees.Thatcher is upset with Him for working at the newspaper and losing money. B) When Kane was throwing his big party with dancing girls there was laughter and chaos, much vocal overlay. 25. Audio transitions A) There is an audio transition when Kane yelling transitions into the horn honking. B) Audio transition scene when Kane is giving a speech and the scene transitions through different speeches. 26. Dead screen A) There is dead screen after the montage of scenes going through the newspaper headlines the film goes into a dead screen.

John Keats

Expressing how little time he has left and how he Is afraid he wont get the massive amounts of Ideas â€Å"letters of the alphabet† written down before he dies at his young age. In the second section he starts with the romantic element of the poem relating to his fiance and expresses sadness that he wont experience the full power of love and life.Towards the end of he sestets he concludes that everything he has done and will do will fall to nothingness and he will be alone no matter what. Therefore the sections are life, work and romance, love. Question 2 The type of affliction shown In the poem Include: The poet has a fear of dying and shows negatively towards writing about death â€Å"when I have fears that I might cease to be† he knows he Is sick with tuberculosis and that he will die at his young age and he fears he wont do and experience all he could f in a full life time.He wants to express and write as many poems as possible which en cradles slung ten metaphor AT â€Å"null plea Dodos, In contrary' He wants to experience love and romance as much as possible with his fiance â€Å"relish in the farer power of unreflective love† he is expressing sorrow and loneness, and how he will â€Å"stand alone† and â€Å"nothingness do I sink† Question 3 The imagery used in the first line is that of a metaphor. The storehouses full grain represents books full of letters.The image of a farm with kilometers of grain to be â€Å"harvested† is all of his ideas over flowing the â€Å"storehouses†, his mind and he wants to express and put down onto paper in the short time he has left. Question 4 Keats has personified the night sky and stars as having a face â€Å"nights starred face† His inevitable demise is contrasted with the infinite starry night sky. He also personifies chance as having a magic hand, which could indicate hope that his fate is not inevitable. Question 5

Can I Experiences in Kindergarten Essay - 930 Words

When it comes to school, you have two options: you either hate it or love it. The ones who hate school kick, scream and cry rabidly as their parents leave them. They often sit at the door until their parents get to their cars, and they realize that they are not going to return. On the other hand, you have those who live to learn, commonly known as â€Å"social butterflies† or â€Å"teacher’s pets†. There is always one classmate everyone despises because they can never sit down and be quiet. If the teacher asks a question, they are the first to raise their hands. Does she need a volunteer? Do not worry, they have already got it covered. That wonderfully obnoxious child just so happened to be me. As most kids referred to it, the â€Å"big†¦show more content†¦They were all anticipating the activities that were to come during the day. Like most classes, our classroom was vibrantly colored. It looked much like a catalogue editorial. Anything you could name, we had it: easels, cubbyholes with cute little name tags on them and brand-spanking new kitchen sets, loaded with utensils, pots and food. I could tell everyone was trembling with curiosity on the inside. However, I was just the only one expressing it. Like most five year old girls, I had no problem blabber mouthing. I could talk a mile per minute if you let me. â€Å"What are we coloring? Can we draw anything? Do you have pink paper,† I asked .She stared at me in awe while trying to comprehend all of my questions before she stated, â€Å"Just give me a minute, you will see.† I spent most of my time trailing behind Ms.Knowles, while my classmates would be in stations doing activities. Where ever she moved, I was there, stuck to her like glue. We talked about practically everything. I would often find myself telling her about my baby brother. â€Å"Sometimes when my baby brother takes my dollies, I cry. I don’t like when he does that,† I exclaimed. 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