Malathion Risk Assessment

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.

I found myself once again facing defeat, seeking refuge behind the protection of my glass patio door. Summer evenings generally started out pleasantly on my porch, glistened with a beautiful sunset, followed by declining temperatures which provided respite from the heat. Disaster would invariably strike, however, with the inevitable onslaught of mosquitoes. The mosquitoes were unimpressed by my insistence on remaining environmentally conscious and disavowing products containing DEET. Pinpricks of swelling bumps peppered the lengths of my arms and legs, leaving me itchy, irritated, and defeated. Nevertheless, I was undaunted, and armed with science, I steeled myself for devastating counterattacks.

Furthermore, the preceding statement supports Carson’s intention to present an informative, persuasive, and logical point of view without shocking or confusing the reader. Carson presents the problem calmly in the opening paragraph and states her claim as a practical approach to stop or decrease the amount of the spraying of DDT pesticides in combined efforts to stop the super races of insects like mosquitoes for example from becoming immune. Including this support for her thesis Carson argues mosquitoes becoming immune to the man-made vaccines presently available would inarguably have serious, detrimental and adverse negative impacts upon the effectiveness of the

Although I feel that malathion, when correctly regulated, is perfectly safe for humans, I do not feel that it’s worth the impact it will have on the environment. Being highly toxic to important insects and fish will negatively affect the surrounding ecosystem. Once we began to deplete that, then there definitely won’t be any mosquitos left to worry

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.

Malathion has been introduced to our City Council here in Wilhelmville. We as a community are looking for a pesticide to kill these insects destroying our crops, however in reviewing information found and presented to us and our council we have a split decision. Below is what we have been presented with by concerned citizens of the community. When presenting this information to the members of the council will assist me and others in our decision whether this is the pesticide that we need to use here in our community.

DDT is a very controversial product… but why? DDT was a pesticide used in the 1950s and it was very effective at killing mosquitoes. This was good because mosquitoes carry a very deadly disease called malaria. But soon the government banned its use in the USA. It supposedly has been decreasing the populations of bald eagles. They think that it makes the eggshells thinner, so when the eagle it trying to keep the eggs warm it might break the eggs on accident. Many people are happy about this ban and others are not. Some researchers feel that evidence supports a ban on DDT while others feel that it is an over reaction to an environmental concern. DDT has been shown to help control the malaria parasite. Evidence supports the banning

”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.

The use of pesticides is an important decision that thousands of communities face each year. Nobody likes dealing with mosquitos and the diseases they bring so using chemicals and pesticides is an option but with other consequences. Mosquitos carry West Nile Virus that affects the city of Genericville every year with 50 cases projected this year in the city and two fatalities as well. On the other hand, the chemicals proposed for controlling the mosquito population has its own risks. The pesticide Malathion is also dangerous to people if they come in contact with it before it degrades. The potential for citizens of the city being exposed is almost a certainty

This means there will be a check to see what health problems are caused bymalathion. We would check the toxicokinetics, to see how the body absorbs and processesmalathion and the toxicodynamics to focus on if there are any effects from the chemicals on thehuman body. This would be done by a dose-response assessment, to see what the healthproblems are at different amounts of exposure. Doing a exposure assessment we could see howmuch of the malathion people are exposed to for the months of June, July, and August. With thiswe can also see how many people will be exposed. Then checking the risk characterization to seewhat the risk is of the certain health problems to the exposed population.Malathion is an organophosphate insecticide it was first registered for use by the USDAin 1956. It is now regulated by the EPA. It is used to control a broad assortment or insects bothagriculturally and residentially. Malathion is registered for use on crops, food, and feed.Malathion is toxic via skin contact, inhalation and through ingestion. It works by overstimulating the nervous system and ending stimulation of the neurons. Malathion has a very loworal toxicity. With lower toxicity in males than

First off DDT has the ability to kill insects that carry diseases such as malaria. There is

ScopeThe scope of this risk assessment is to determine the risks vs. benefits of sprayingMalathion to control the population of mosquitoes that inhabit and reproduce in thelakeside community. It is not intended to advise on mosquito spraying efforts for anyother portion of the Town of Hillsborough, NH, or any other community, as theinformation considered herein was considered using the demographics of the ELVDcommunity alone.2. Emerald Lake Village District DemographicsEmerald Lake Village District is an approximately 840 acre communitysurrounding a 59 acre lake, with four beaches available for use by residents. Thoughoriginally a small lakeside community designed for seasonal vacation homes, ELVD nowboasts approximately 540 houses, most being

We have all been victims of them. They’re often disgusted and feared by many. One might think they’re just the annoying little critter that terrorized our daily activities. Needless to say, they’re one of the deadliest animals in the animal kingdom. You might think a big ferocious lion or a velocipede shark might be the animal with the most fatalities. This tiny insect is the major cause of approximately 1 million dead annually according to the World Health Organization. Although this might surprise you, it’s not uncommon for mosquitos to be responsibilities of many deaths around the world. What will astonish you is that history tends to repeat itself. This deadly critter has been responsible for many major events that eventually cause the

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

America the Beautiful! So why are we destroying it everyday with the use of pesticides? It has been proven that pesticides have affects on it's surrounding, although made to improve earths resources, they typically take there negative effect on the environment in time. Pesticides affect more than the environment; they also affect the animals and humans living in the environment. There are alternative, to this major problem but, we as the caretakers of earth must act fast. In the following paper I'm going to share with you what pesticides are. I'll tell you why they are not safe to use and some of the affects of pesticides. Last, I will talk about some new alternatives there are