Ddt Research Paper

A positive consequence of DDT is its effectiveness, even in the face of pesticide resistance in the anopheles mosquito. The eradication of malaria in the United States and the health of US Soldiers while fighting in World War II can be greatly credited to the use of DDT

Many animals kill countless numbers of humans every second, minutes, and hours. The mosquito is among those predators, and it causes the most morbidity and mortality among humans compared to any other animal or insect. Mosquitoes are notoriously known for causing malaria worldwide. Malaria is a disabling illness which can result in mobility and mortality. People infected with the disease become weak over a period of time. This reduces their productivity level; thus it makes simple activities of daily living difficulty to accomplish. Some of the common symptoms of malaria resemble those of the flu. Malaria is an extreme health burden in low and middle income countries especially African countries. Moreover, the disease is mostly prevalent in sub-Saharan African countries, among pregnant women and children age 5 and younger. Over the years, scientists have discovered and developed several methods to control the spread of malaria. One of the most controversial control methods for malaria is DDT. DDT is short for dichlorodiphenyltrichloroethane; this method come in the form of a pesticide or insecticide. It is used to kill pest and insects specifically mosquitoes. “DDT is used in indoor spraying for control of vectors of malaria and visceral leishmaniasis” (Van den Berg, 2009). Scientists have realized that the pesticide could be effective at preventive malaria by reducing the amount of mosquitoes in the environment. Despite this, concerns about the effectiveness and safety of

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

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.

”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 use can lead to horrible effects in humans and we can not become immune to these horrible unlike the flies that we are trying to kill. We think we have all this superiority over little insects when in fact they have the hand over us. Not because they are more intelligent than us but because we are too intelligent for ourselves. Conniff’s essay shows how our own superiority can lead to our demise.

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.

Carson clarifies that “the sprays, dust, and aerosols are now applied almost universally to farms, gardens, forests, and homes-nonselective chemicals that have the power to kill every insect, the “good” and the “bad”.” In contemporary world today many people use these mankind chemicals without understanding the effects of nature. For example, the reproduction of bees are dropping traumatically because of the pesticides effects on the insects. According to CNN “How Pesticides are killing the bees “Recent data published in science, Nature and other un journals show that bees are dying from some pesticides that are found in our food supply.” The damaged the chemicals are doing to the bees have worries many scientists. The New York Times wrote, pesticide linked to honeybee deaths, “a group of pesticide believed to contribute to mass deaths of honeybees.” Another example of the harmful chemicals affecting the good insects are by destroying favorable insects such as lady bugs and butterflies, which are another great alternative way to pollinate flower. These beneficial insects are very important for human wellbeing; therefore, we should minimize the use of

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

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.

Aerial spraying, overspray, and drift threaten food crops not modified to withstand the pesticides. Soil is bare and exposed seven months of the year, resulting in tremendous soil erosion. It isn’t our soil to lose. Future generations will pay the price” (McCulloch). Farms that operate on a monocultural based scale have made it easy for specific insects to multiply abundantly. However, at the rate and to the extent that pesticides are being applied, has resulted in and continues to cause overall disturbance to the natural ecosystem. Through the studies of Rachel Carson, as infected insects were being consumed by birds, runoff from crops were leaking into streams and rivers and people were being diagnosed with illnesses. Because DDT is a synthetic chemical compound, many organisms do not have an enzyme to break it down and it becomes stored in fat and liver tissues where it cannot be

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.

It would appear that DDT would be the obvious choice to prevent cases of malaria in developing nations and all over the world. However, DDT is not without its potential hazards. DDT was used as a pesticide in the United States until it was banned in 1972. First employed as an insecticide in 1939, the white powder would kill massive amounts of mosquito larvae. Paul Müller actually won the Nobel Prize for first using the chemical on insects. The pesticide was used throughout the United States to combat more kinds of insect-pests such as gypsy moths. It was not

Just like DDT, these insecticides are not only affecting their target species but they are also impacting the other species that come into contact with them. These human-introduced contaminants have had many negative impacts on non-target species. One major insect that insecticides are used for today is a mosquito. An ecotoxicology study was conduced where they examined the effects of commercial mosquito insecticide formulations and predation on the survival, growth, and development of a species of tadpoles (Pauley et. al 2015). They had to take into consideration environmental stressors like predation and temperature because that can change the lethality of the insecticide. They used three insecticide formulations: mosquito bits, mosquito dunks, and mosquito torpedoes. Mosquito dunks showed the biggest significance because they caused a decrease in tadpole survival when used with a predator. The predator was used as an environmental stressor that affected the lethality of the formulation. This caused the decrease in that tad pole species. Similar predator-insecticide interactions have been found using a variety of insecticides and herbicides, incorporating multiple environmental sources of amphibian stress (Pauley et. al

The way they suck all the nutrients out of the crops is the reason why they are injurious for the crops.