An Essay about different types of water pollution Essay Example

An Essay about different types of water pollution Paper Its defined as contamination of streams, lakes, underground water, bays or oceans by substances harmful to living things. Such things as oil spills, boat fumes, and dumping of trash into the oceans, lakes, and rivers are just a few of the major contributors to water pollution. Throughout the past century water pollution has become a very real problem and solution must be found. First of all, Water pollution presents problems to humans in a few ways. Water pollution makes streams, lakes, and coastal waters unpleasant to look t, to smell, and to swim in, as well as preventing us from drinking it without filtration. Fish and shellfish harvested from polluted waters may be unsafe to eat. People who ingest polluted water can become ill and if theyre exposed for a long time, may develop cancers, or have children with birth defects. There are two types of water pollution; point source and non-point source. Point sources of pollution occur when harmful substances are put directly into a body of water (such as an oil spill). A non-point source is when pollutants enter the water indirectly through environmental changes (like hen fertilizer is carried into a stream by rain). The major water pollutants are chemical, biological, and physical materials that lessen the water quality. These pollutants can be separated into seven different classes: Petroleum products, pesticides and herbicides, heavy metals, hazardous materials, excess organic matter, sediment, and finally thermal pollution. The first category is petroleum products. Petroleum products include oil and chemicals from oil are used for fuel, lubrication, plastics manufacturing, and many other purposes. The petroleum products get into water by accidental pills from ships, tanker trucks, and leaky underground storage tanks. We will write a custom essay sample on An Essay about different types of water pollution specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on An Essay about different types of water pollution specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on An Essay about different types of water pollution specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Many petroleum products are poisonous if ingested by animals and spilled oil damages the feathers of birds and the fur of animals, often causing numerous deaths among these birds, furred animals, as well as fish. The second category that pollutants can be classified as is pesticides and herbicides. These include chemicals used to kill unwanted animals and plants. An example of this may be something used to keep certain bugs off of fruits or vegetables. These pollutants may be carried into streams by rainwater. If he chemicals in these herbicides and pesticides are not biodegradable they can remain dangerous for a long period of time. When an animal eats a plant that has been treated with certain non-biodegradable chemicals, the chemicals are absorbed into their tissues or the organs. When other animals feed on a contaminated animal, the chemicals are passed up to them. As it goes up through the food chain, the chemical becomes more harmful, so animals at the top of the food chains may suffer cancers, reproductive problems, and death. This can be a very serious problem for many species of animals. The herbicides and pesticides found in some polluted waters dont simple pose a problem to animals; they can also be harmful to humans. More than 14 million Americans drink water contaminated by pesticides, and the EPA estimates that ten percent of wells contain pesticides. These Nitrates can cause a lethal form of anemia called blue baby syndrome in infants. Also there are many other humans that have allergies to these chemicals, and can cause health problems if enough of the contaminated water is digested. Other chemicals that are a problem in the pollution of water are heavy teals. Heavy metals, such as copper, lead, mercury, and selenium, get into the water from industries, automobile exhaust, mines, and natural soil. Heehaw metals also become more harmful as they follow the food chain. When they reach high levels in the body, they can be immediately poisonous, or can result in long-term health problems. They can sometimes cause diarrhea and, over time, liver and kidney damage. Children exposed to lead in water can suffer mental retardation. Fish that have been exposed to mercury can be extremely poisonous to humans if they eat the fish. The fourth classification that is known to pollute waters IS hazardous materials. Included in this class are chemical wastes that are toxic, reactive, corrosive, or ignitable. If not treated or stored properly, they can pollute water supplies. Such as in other categories once the hazardous wastes reach one part Of the food chain they can be passed on to the animals that depend on them for food. The fifth leading cause of water pollution is excess organic matter. Some examples of excess organic matter are fertilizers and other nutrients used to promote plant growth on farms and in gardens that may fine their way into eater. At first the nutrients will help the plants and algae in the water grow, but when they die and settle underwater, microorganisms decompose them, while decomposing them the microorganisms take in oxygen that is dissolved in the water. The oxygen levels in the water may drop so low that fish and other oxygen-dependent animals in the water suffocate, and die, this happens mostly in the Midwest and other such places where there are vast amounts of farm land. Yet another principal cause of the pollution of water is sediment. Sediment is soil particles carried to a stream bed, lake, or ocean, if in large amounts, can also be a pollutant. Soil erosion can damage a stream or lake by adding too much nutrient matter. Sedimentation can also cover stream bed gravel where many fish lay their eggs. Therefore, this can greatly decrease the population Of fish in future generations. This is one of the many reasons that soil erosion is trying to be prevented today. The final cause of water pollution, which is often overlooked, is known as Thermal water pollution. Thermal pollution takes place when water is taken from rivers, lakes, or the ocean to be used in factories and power plants. This eater is usually returned to the source much warmer than when it was taken. Even a small temperature change in a body of water can drive away the fish and other species that were usually inhabited that particular region, and in conjunction attract other species in place of them. This develops unwanted ecosystems in areas where they should not be. Thermal pollution can speed up the biological processes in plants and animals and/or lower the oxygen level in the water. Fish and other wildlife near the discharge source, may die. So as you can see, water pollution is a very serious problem it is responsible or dramatic decreases of fish and wildlife populations in our, rivers, lakes, and oceans. Water pollutants should also be held accountable for many cases of food poisoning, especially experience in seafood. In order to solve this problem we need to learn about ways for disposing harmful household wastes so they dont end up in sewage treatment plants or landfills. In our yards, we should determine whether or not we need to add nutrients before fertilizers are applied, and look for alternatives where fertilizers may run off into surface waters. We need to preserve existing trees and plant new trees ND shrubs to help prevent soil erosion. Around the house we should we need to keep litter, pet waste, leaves, and grass clippings out of gutters and storm drains, and buy as many heavily packaged foods, certain boxes, cartons, bottles, etc that are made with polluting dyes. On a more widespread note, we must be much more careful about the types of pesticides we use, how we transport oil and other harmful materials, and work as hard as we can to prevent soil erosion and excess organic matter. If everyone works together to prevent water pollution this problem can be creased drastically, if not eliminated.

6229351149894 Essays - Identity Politics, Race And Society, Politics

6229351149894 Essays - Identity Politics, Race And Society, Politics 6229351149894 Research paper 0 Research paper centercenter9410095400 5042817088233 Racism african experience in film Owolabi , Akindele E Howard University 0 Racism african experience in film Owolabi , Akindele E Howard University 11930747348311 Student ID number: @027734410 Student ID number: @02773441 Title of research paper: Racism in the Americas and Africa. Topic of research: The subject matter being discussed is racism. More specifically, racism in the 20th and 21st century towards people of african decent. Even after the end of slavery in the Americas, racism and segregation were still prevalent in Africa and the Americas. Geographic area: North America and Africa. Films under consideration: Malcolm X: Depicting how Malcom X uses his rhetorical skills to fight for civil rights and justice for the black people and for the nation of Islam . Mississippi Burning : Mississippi burning depicts an idealistic White south American society and racial the racial violence that goes. This film takes place in Rural Mississippi . It also depicts the history of racial politics. Cry freedom: Cry free dom takes place in south Africa . I t shows the latter life of Steve Biko before his death . It also depicts the police brutality that prisoners had to go through. The south African police department tried to hide what really went on in the jails but a journalist uncovered the truth and was banned from leaving the country so that the rest of the world would not really know what was going on. I t also shows the violence that African s went through during the apartheid era in the country. I took a lot of violence blood sweat and tears before the Strict way of life that restricted black Africans in South Africa to be lifted o f f. Higher Learning : Higher learning shows life on a fictional college campus. It shows that racism indeed still exists even though blacks have civil rights. This movie shows the racism that happens in silent ways such as police racially profiling and small white supremacy brotherhoods that keep a low profile. A Dry White Season: also takes place in Africa just like Cry freedom. It depicts the apartheid and how suppressed the blacks were during it. Blacks couldn't vote, they had curfews, and lived in Bantustans. Whe n the blacks tried to resist by means of protest , they were brutally dealt with by the police. Some examples of ways they were dealt with was by beating, arresting, bombing, and killing them.

Exploring the influence of Corporate Social Responsibility on customer Research Proposal

Exploring the influence of Corporate Social Responsibility on customer buying behavior - Research Proposal Example According to Zhang (2012:34), studies sponsored by the US Department of Commerce in 2012 showed that there is a positive correlation between an excellent understanding of consumer needs and good financial performance in American corporations. However, studies also show that there is a need go deeper by examining the specific factors that allow businesses to predict or even manipulate customer behavior (Rosengren, 2013:47). One such factor is CSR, and it has become a core aspect in the observation of consumer behavior. The academic context of this topic revolves around previous research and the need to expand the breadth and scope of previous and current research (Mermod and Idowu, 2013:36). There is still a vacuum in the study of the relationship between CSR and customer buying behavior. This paper aims to fill that vacuum. The novelty of this proposal lies in describing an ignored or unexplored body of scientific material on the relationship between CSR and customer buying behavior. There is a large body of empirical material that pertains to the topic but is yet to be brought to the fore (Mermod and Idowu, 2013:16). This paper will examine that material and also provide possible new perspectives on the subject. The research will employ a descriptive research design because it is the most suitable for examining relationships between phenomena. Descriptive research methods such as observation, case study and surveys will be used to collect data, and then the relevant analysis tools – SPSS – and other statistical methods will be used to analyze the collected data. Findings will be presented using common methods like charts (pie charts), tables and graphs. The research will consider common research issues like bias, confidentiality and ethics. Bias will be avoided by using open-ended questions in the surveys to eliminate the possibility of appearing partial. Participants will not only be assured of the confidentiality of the information of their