Ddt Research Paper

Dichlorodiphenyltrichloroethane, better known as DDT is a notorious organochlorine pesticide that is created by the reaction of chloral with chlorobenzene in combination with sulfuric acid(Britannica p.1). It was first used as an insecticide in 1939 by Hermann Muller in Switzerland. DDT works as an insecticideby acting on the nervous system to generate the same neural impulse over and over causing body tremors and eventually death. DDT is an extremely stable chemical compound containing C14H9Cl5 which leads to some significant resistance issues when used as a pesticide. The most problematic property of DDT is its high fat solubility and extremely low water solubility meaning that it has a tendency to stick around in the environment for longer than we want since it is readily taken up in the bodies of nearby mammals.

Writing Activity 1 The evidence used throughout the piece was average. He is arguing that the animals shouldn’t be researched on. A piece of evidence he did use was how the National Institutes of Health says that chimpanzees are one of the closest human relative, and there are many more animals out there used for research.

1. Carlson classifies modern insecticides into two groups of chemicals. The first group, represented by DDT, is known as the “chlorinated hydrocarbons” and the other group, represented by Malathion and parathion, consists of the organic phosphorus insecticides. Although both are organic, the organic phosphorous insecticides are more poisonous than the chlorinated hydrocarbons and have the ability to destroy enzymes.

In the essay, “A cruel and unusual kingdom”, by Leonard Pitts Jr. columnist for the Miami Herald, effectively argues that the use of the death penalty in the United States is inhumane, irrational and goes against American values. Though Pitts overall maintains a strong argument, writing style, and voice, he purely targets a supportive audience as he doesn’t include clear common ground nor a refutation of the other bias.

”On those visits, I feel not only the spirit of the local people…and the seasonal change.”(345).Nowadays seasonal variation in industrial societies is minimized by importing many products that mature in specific seasons from different parts of the world. Technologies however, are impacting on our lives. “DDT would exert incredible selective pressure for mutations that would confer resistance” (347), it killed malaria-carrying mosquitoes but in few years large numbers of mosquitoes will return. It also has ecological damage the compound is ingested by many organisms, become concentrated up the food chain in a process called biomagnification. It causes heavy bird mortality.

DDT is a chemical that is widely known for is properties as an insecticide. When humans discovered this “wonder product” the whole country was on fire! The one company that made the most money was Montrose Chemical Corporation. From 1942 - 1971, when DDT was banned, the MCC pumped out DDT tons at a time. However, the bigshots were faced with a problem. Where do you dump all the leftover byproduct? Hey, why not the ocean! When DDT byproduct, DDE, was dumped into the ocean, fish and other seafood had it leached into them. This meant the bald eagles’ main food source was contaminated. When the bald eagles ingested their main source of food, the DDE became very concentrated in them. When bald eagles attempted to lay eggs, barely any would hatch! The DDE caused their eggs to be porous, and the eggs fail to hatch. This meant the bald eagles’ total extinction on the Channel Islands by the 1950’s.

DDT and other chlorinated hydrocarbons are very fat soluble so when these chemicals are sprayed on plants and these plants get eaten by animal the chlorinated hydrocarbon gets in the animal's fat. Then that animal get eaten by another animal and now that has the chlorinated

Carson’s other books, Under the Sea Wind, The Sea Around Us (which stayed on the New York Times bestseller list for 86 weeks), and The Edge of The Sea all focus on nature’s strength and the inter-connectedness of nature and all living things. But DDT exposed the vulnerability of nature and I think this influenced the writing of Silent Spring. DDT was the most powerful pesticide in the world at the time of Rachel Carson’s Silent Spring. Unlike most pesticides, whose effectiveness is limited to destroying one or two types of insects, DDT was capable of killing hundreds of different kinds at once. Developed in 1939, it first distinguished itself during World War II, clearing South Pacific islands of malaria-causing insects for U.S. troops, while in Europe being used as an effective de-lousing powder. Its inventor was awarded the Nobel Prize.

DDT is a colorless, crystalline, tasteless and almost odorless organochlorine known for its insecticidal properties and environmental impacts. PCB (Polychlorinated biphenyls) are a group of manufactured organic

Dichlorodiphenyltrichloroethane (DDT) is an extremely powerful contact insecticide that has a high toxicity. It can be swallowed or pass in through the epidermis, also known as the skin. Some characteristics of the compound are that it is odorless and colorless, usually found in a crystalline powder form. It is not water soluble, but is fat soluble, which allows for it to accumulate inside of the tissues.

There is no scientific proof done by researchers to provide any evidence the chemical might do harm, but there isn’t any research that says it does no harm with exposure overtime. The precautionary principle relies on our history with asbestos, PCB, and chlorofluorocarbons destroying the ozone. Therefore, a strength in the precautionary principle is the research it acquires in order to provide enough evidence a chemical like DDT can become more harmful than beneficial. However, the precautionary principle is only based on skepticism and not actual data found from trials in research. The precautionary principle has the capacity to save lives by reducing the human race and planet Earth from being exposed to dangerous chemicals. However, the implications of using the precautionary principle can lead to several deaths to diseases like West Nile Virus and Malaria because of the DDT ban based on skepticism and history

Dichlorodiphenyltrichloroethane (DDT) has had a huge impact on the fight against malaria, helping to ensure the control or eradication of malaria in many countries around the world in the mid-twentieth century. However, since its peak in the 1960s, succeeded by environmental and health concerns about the usage of the insecticide, more and more countries have been banning the use of DDT.

There are many things that enter our waterways that we have to clean out. One of the worst things is pesticides. They not only contaminate our water, but they are harmful to animals. It enters our water sources by seeping through the soil to groundwater or entering streams as surface run-off. Farmers and other workers try to keep our water safe from pesticides, but it is a very hard and stressful job. Let’s take a look at the ways that pesticides enter our water and also some possible solutions for this problem.

Throughout his essay, Suzuki supports his arguments with specific examples. To justify his reasoning, the author uses the case of DDT, otherwise known as dichlorodiphenyltrichloroethane. This chemical compound is used as an insecticide to eliminate the population of malaria-carrying mosquitoes, which it did effectively, and saved millions of lives. Unfortunately, due to unforeseen circumstances, complications arose, which led to an increase in chemicals and caused a domino effect of

Animal Farm by George Orwell is an allegorical story which satirizes events that took place before, during, and after the Russian Revolution. In Animal Farm, the animals are oppressed by their corrupt farmer, Mr. Jones. With words of encouragement from Old Major, a wise, older pig, the animals are inspired to rise up and overthrow the figure that holds so much power over their lives. They successfully do so, and with the opportunity to finally govern themselves, a few animals automatically fall into positions of leadership. Such characters include pigs named Snowball, Napoleon and Squealer.