Essays Tagged: "DDT"

Agriculture and its impact on ecosystem

e pests becomes unchecked and may increase a higher level than before.e.g.Spraying fruit trees with DDT in the 1950's caused red spider mite to become a serious pest because its natural enemy/predator ... pesticides along the food chain and harming the top consumers.-Some organo-chlorine pesticides like DDT will cause the phytoplanktons to slow down its photosynthetic activities and thus lowering the p ...

(6 pages) 306 1 4.6 Mar/2002

Subjects: Science Essays > Environmental Science

The EPA - Can It / Will it Save Our Environment?

EPA was created by President Nixon to protect thepublic health and environment. The cancer-causing DDT was banned in 1972and was found accumulating in the food chain. The use of lead ingasoline was p ...

(2 pages) 106 0 3.4 Jan/1997

Subjects: Science Essays > Environmental Science

Peregrine Falcon

ways to prevent that from happening:First and foremost, there should be NO pesticides used at all. DDT and DDE are the main ingredients in the endangerment of peregrine falcons because they damage th ...

(1 pages) 36 1 4.0 Nov/2002

Subjects: Science Essays > Environmental Science

Persuasive essay on the merits of DDT.

Malaria or DDT: Which is the lesser evil?What would you expect to be some of the leading causes of death among ... ol. One suggested solution for this problem is to spray these wetlands with an insecticide known as DDT (short for dichlorodiphenyltrichloroethane). So what's the problem? In 1973 DDT was banned by th ... lication of Silent Spring, a best-seller written by Rachel Carson which outlined the possibility of DDT entering the food chain and eventually concentrating in larger animals and causing reproductive ...

(2 pages) 152 0 2.4 Nov/2002

Subjects: Humanities Essays > Health & Medicine > Diseases

Dichlorodiphenyltrichloroethane and the Environment, The Global Impact.

hlorodiphenyltrichloroethane and the Environment: The Global ImpactDichlorodiphenyltrichloroethane (DDT) was first synthesized in 1873, but it was not until 1939 that a Swiss chemist, Paul Hermann Mul ... ty to humans. He was later awarded the 1948 Nobel Prize in Physiology and Medicine for his efforts. DDT's effectiveness, persistence, and low cost resulted in its use in anti-malarial efforts worldwid ...

(4 pages) 85 1 4.7 May/2003

Subjects: Science Essays > Chemistry

Silent Spring - A Book Review!

also the biological alternatives that are emerging and stand to replace chemical pesticides such as DDT, aldrin and dieldrin. Moreover, Carson sets out to show us how the natural world is a delicate b ...

(5 pages) 106 0 3.8 Mar/2004

Subjects: Science Essays > Environmental Science

This essay is about rachel carson and her book silent spring and her why she thinks that pesticides like DDT are ruining the earth and what we can do to help.

Fish and Wildlife Service. In about 1945 she made Reader's Digest aware of the shocking evidence of DDT use and how harmful it was, they however were not interested. In 1957 she knew that the chemical ...

(6 pages) 116 0 4.7 Mar/2004

Subjects: Science Essays > Environmental Science

Silent Spring by Rachel Carson

962.The whole book was an alarmed appeal to everybody who used insecticides and especially who used DDT.The book mostly describes how DDT is used by people and how it enters the food chain and causes ... s how other chemicals such as Dieldrin and Aldrin kill birds, fishes, and humans. An example of how DDT (= dichloro-diphenyl-trichloro-ethane) can kill humans is the story of a woman who sprayed DDT f ...

(1 pages) 81 0 2.3 Mar/2004

Subjects: Science Essays > Biology

Hazardous Waste Clean-Up Efforts in California

rnia's efforts, thus far have ranged from acid mine drainage to door-to-door collection programs to DDT remediation to passing environmental protection laws for Indians. Treating hazardous waste is a ...

(6 pages) 87 0 3.8 Apr/2004

Subjects: Businesss Research Papers

Historical Development of our understanding of the cause and prevention of Malaria.

hesized and is also used in treating Malaria patients.In an effort to completely eradicate Malaria, DDT was sprayed upon Anopheles mosquito areas. This was effective until the mosquitoes developed res ... es mosquito areas. This was effective until the mosquitoes developed resistance to the insecticide. DDT was used until the 1970's when the harmful effects that it was having on the environment were re ...

(2 pages) 38 0 5.0 Jun/2004

Subjects: Science Essays

Estrogen Mimics and thier Effect on the Environment.

Until now DDT could very well be considered the biggest environmental disaster to date. DDT, or dichlorodiphen ... Environmental Health. Nov.-Dec. 2002 v57 i6 pp541. Associations of dichlorodiphenyltrichloroethane (DDT) 4.4 and dichlorodiplenyldichloroethylene (DDE) 4.4 blood levels with plasma.Davis, Derva lee an ...

(2 pages) 31 0 3.0 Oct/2004

Subjects: Science Essays > Biology

This is an essay on which i used color research to describe why my favorite colors are related to me.

e expensive fluorescent light bulbs over the cheaper regular light bulbs. People would rather spray DDT, instead of the more expensive environmentally safe spray that would need to be sprayed more oft ...

(4 pages) 25 0 0.0 Apr/2005

Subjects: Art Essays

Endangered Peregrine Falcon

h America, could possibly become extinct. This is due to the effects of chemical pesticides such as DDT (which has been banned from the United States and Canada but not in all countries). The Peregrin ...

(1 pages) 909 0 4.0 Feb/2006

Subjects: Science Essays > Zoology

Monsanto

siness entities, Monsanto has a wide range of products, including herbicides (Roundup), pesticides (DDT), agricultural biotechnology (BST), pharmaceuticals (Nutrasweet) and genetically engineered prod ...

(6 pages) 91 0 5.0 Mar/2006

Subjects: Businesss Research Papers > Case Studies

Water Pollution

c chemicals that pollute our waterways are: sodium, mercury, lead, dichlorodiphenyltrichloroethane (DDT), and polychlorinated biphenyls (PCB). The affects in humans are: sodium is implicated in cardio ... rdiovascular disease and nitrates in blood disorders, mercury and lead can cause nervous disorders, DDT is a toxic to humans and can alter chromosomes, PCB's cause liver and nerve damage, skin eruptio ...

(7 pages) 286 0 4.8 May/2006

Subjects: Science Essays > Environmental Science

Biology HSC Syllabus - Blueprint of Life - All Dot Points Answered

Chemical changes in the environment impact on the evolution of organismsAn Example - Mosquitoes and DDT:When DDT (dichloro-diphenyl-trichloroethane) was first used as an insecticide to kill malarial m ... subsequent doses, higher concentrations were needed and the sprayings became less effective.The few DDT-resistant mosquitoes that had survived passed on their genes to their offspring, and now the mos ...

(27 pages) 130 0 5.0 Jun/2007

Subjects: Science Essays > Biology

Analysis of "Taming technology"by alvin toffler

m effects of products causing harsh realization in the future that these very products are harmful. DDT is a perfect example of how well businesses test their products before they are released to the ... le of how well businesses test their products before they are released to the market. At first look DDT, seemed harmless and extremely useful. However, it was not until years later that its damaging e ...

(3 pages) 9 0 0.0 Feb/2008

Subjects: Science Essays > Environmental Science

Animals At Risk Of Endangerment

to feed the bears and other wildlife. One of the leading chemical, Dichlorodiphenyltrichloroethane (DDT) and other types, can interfere with the egg shells of birds and impair reproduction in some car ...

(3 pages) 20 1 3.0 Dec/2009

Subjects: Science Essays > Environmental Science

Book critique for Silent Spring by Rachel Carson

nt, Carson launch environmental movement and alter the future of Earth by prohibiting the pesticide DDT and propelling radical changes in laws that are distressing our air, land, and water. One of the ... chemical poisons including their scientific descriptions and their harmful impact to human bodies. DDT, an insecticide, once seen as harmless in powder form, dissolved in oil becomes definitely toxic ...

(7 pages) 0 0 0.0 Dec/2011

Subjects: Social Science Essays > Controversial Issues

Health in Contemporary Society

ne. The typical strategies for malaria are prevention strategies through the use of pesticides like DDT or the use of mosquito nets known as ITNs. There are 40 malaria endemic counties in Africa and 1 ...

(5 pages) 1 0 0.0 Dec/2011

Subjects: Area & Country Studies Essays