Should DDT remain illegal By Millie Hiner. What is DDT and what was it used for DDT is pesticide that was used all over the world in the 1900s to put.

Slides:



Advertisements
Similar presentations
Pesticides in the Environment
Advertisements

Bio-Contaminants & Food Webs
Ecosystems and Change Chapter 6
PESTICIDES First-Generation Second Generation BIOAMPLIFICATION INTEGRATED PEST MANAGEMENT Chemical Control Biological Control Pesticide Resistance.
Good or Bad ? Pesticides By Syed Haider 9M. Pesticides are basically chemicals that are sprayed on plants and crops to kill any insects that my eat them.
The Impact of Insects A L ESSON IN E COSYSTEMS. H ELPFUL VS. HARMFUL  Insects can be very helpful to humans:  The honey bee helps pollinate crops, so.
Comparing Insect Life Cycles M ETAMORPHOSIS. I NSECTS ARE E VERYWHERE Look around you. Chances are, there is an insect nearby.
1 Pesticides Section 1:11 pp What are pests? Pests are living organisms that are not wanted around us. Organisms that people consider to be harmful.
Pesticide, Bioaccumulation and Biomagnification
are chemicals used by farmers to kill various pests. Pests are insects, fungus, bacteria and other things that feed on crops, are vectors for disease,
Pests and Pesticides.
Lake Trout 4.83 Lake Trout 4.83 PCBs Background Information: PCBs are a collection of substances used to manufacture different items such as plastics and.
Get out your HW & In your notes…
Conserving Life. Biodiversity  The variety of life in an ecosystem.
Endangered Animal Act Brandon Rolling Hills Elementary 2006.
Pests and Pest Control. Pests Any troublesome, destructive, or annoying organism Insects eat about 13% of all crops in North America Only 1/8 th of insects.
are chemicals used by farmers to kill various pests. Pests are insects, fungus, bacteria and other things that feed on crops, are vectors for disease,
 DDT, a powerful insecticide, is invented by chemist Paul Hermann Muller.
Biomagnification Biology. When we try to pick out anything by itself, we find it hitched to everything else in the universe. John Muir When we try to.
Bi o m a g n i f i cati on AP Environmental Science.
The DDT Story Science 10. The DDT Story… DDT is a powerful pesticide. It was used during the second World War to control populations of insects (body.
Bioaccumulation. Principles Non-biodegradable pesticides are taken up into environments and food chains and stored in fatty tissues. As these chemicals.
Pesticides. What ARE They? Pesticides Pesticides are chemicals that kill unwanted organisms, usually those that attack crops. Therefore, they are intended.
Pest Control and Pesticides. Questions for Today: What is a pest and pesticides? What are the advantages and dis advantages for using synthetic pesticides?
DDT Zachary Rolling Hills Elementary Dichloro-diphenyl-thrichlorethane [DDT], was, is, and always will be a dangerous insecticide that has killed.
Bioaccumulation and Biomagnification Tracing Pollution Through An Ecosystem.
SCIENCE 10 O2 Pesticides and DDT. What are Pesticides? PESTICIDES: chemicals that are designed to kill pests. PEST: any organism that people consider.
Which image is the odd one out?. Title: LO: Biological Control Know what a pest is. Describe what is meant by a pesticide Know what biological control.
Advanced Higher DDT.
Ecosystem Threats Ecosystems Unit, March 21 st 2005.
Biomagnification Biology.
Recycling of Matter Science 20 Unit D – Living Systems.
Biomagnification When we try to pick out anything by itself, we find it hitched to everything else in the universe. John Muir.
Bioaccumulation and Biomagnification.  Pesticide  Kills pests  Insecticide  Kills insects  Herbicide  Kills plants.
1.4 Feeding People p Productivity The average amounts of new plant biomass produced each year per unit area.
Biomagnification.
Herbicides To know how herbicides and pesticides can affect food webs.
WHAT HAPPENS WHEN NON- BIODEGRADABLE* SUBSTANCES ENTER ECOSYSTEMS? *Substances that are broken down very slowly or not broken down at all by natural processes.
Pesticides. Pesticides are… Poisons that are sprayed to kill insects and other pests. Examples include DDT, DEET, “Roundup”, and diazinon.
Science 10 Mr. Jean June 6 th, The plan: Video clip of the day DDT Bio-magnification Sick swamp water? (maybe) How many people can we fit on Earth?
Bioaccumulation. Bioaccumulation  Accumulation of chemicals in an ecosystem  Higher and higher concentrations accumulate in organisms  Chemicals ingested.
Pesticides, diseases, and DDT 1)What are two ways chemicals get into the environment? b) What is the difference between persistent and non-persistent?
Pest: Any organism that interferes in some way with human welfare or activities Pest Management.
Endangered Means There’s Still Time  Endangered species are like fire alarms. They tell us about problems in our home we call Earth.  If a species goes.
Done by ;Ignatius Nanyakkara. Malaria is the cause of many of the deaths in Africa.However pesticides such as DDT have been used in many countries to.
Get out your HW & In your notes… Do you think that we should use pesticides? What applications do you believe pesticides are acceptable for, if any?
Pests and Pesticides. Pest “ANY troublesome, destructive, or annoying organism” Problems with pest: –Disease carrying –Compete with us for food Examples:
Pesticides Science 10. Pest – is an organism that people consider harmful or inconvenient Pest – is an organism that people consider harmful or inconvenient.
1.4 Feeding People p
Deadly Links.
Introduction Over the last 60 years farmers and growers have changed the way they produce food in order to meet the expectations of consumers, supermarkets.
POLLUTION.
Human Impact on the Environment
Pests and Pest Control.
Human Population Growth Impacts
Bioaccumulation and Biomagnification
BIODIVERSITY the variety of life on Earth!
Brooke LeFevre Victoria Sifuentes Rachel Herron
Pesticides Pesticides are chemicals designed to kill pests.
Carbon Cycle Carbon Pools: 1. Atmosphere, 0.035% CO2
Biomagnification When we try to pick out anything by itself, we find it hitched to everything else in the universe. John Muir.
Pesticides.
Bioaccumulation S Describe bioaccumulation and explain its potential impact on consumers. Examples: bioaccumulations of DDT, lead, dioxins, PCBs,
surrounding ecosystem?
Does This Food Taste Funny?
Pests and Pest Control.
Topic 5: Cycles in the Environment
What is bioaccumulation?
Sustainability and Resources
Presentation transcript:

Should DDT remain illegal By Millie Hiner

What is DDT and what was it used for DDT is pesticide that was used all over the world in the 1900s to put an end to malaria, once malaria was coming to an end in the United States DDT was being used for an insect killer. After WWII it was such an effective insect killer that people called it “atomic bomb” of pesticides. DDT was used to control “common pests” like potato beetles, coddling moths, corn ear warms and tobacco budworms.

How it became illegal In 1962 Silent Spring was written by Rachel Carson who writes about how commonly DDT was being used and how she started to notice changes in the environment. It was being used in homes gardens and farms and forests. DDT was a non- selective insecticide it kill good and bad insects. Carson said DDT had the power to “still the songs of birds and the leaping of fish in the streams, to coat the leaves with a deadly film and to linger on in soil” Silent Spring became a best seller and thousands of people were reading that DDT is stored in human bodies and how it will permanently poison the water system.

Using DDT Pros: Could save millions of people Cons: Run-off into water systems Will be stored in humans fat cells where it is passed thru milk into children Poison fish, who then get eaten by people and other animals Will soften the eggshells of birds Could kill of more animals than we know It never breaks down from being a POISON It’s an experiment using the environment

Can not be used again In Malaria infested countries millions are adults and children are dying, while there is a sure way to get rid of Malaria once in for all but at what risks? DDT needs to be remained illegal for many reasons. People may only see using DDT as only losing a few birds but that is not the case; no one knows the long term effects DDT could have on humans it is a poison that never gets broken down and it is stored in our bodies, it could cause a million different types of disease and sicknesses that we haven't ever seen before. Causing one specie to go extinct would be the cause of many more to become extinct; it is a domino effect. DDT poisons fish by poisoning all water systems, anyone who drinks the water or eats the fish now has DDT poison inside of them. "It's in those species which are perhaps at the higher end of the food chain where there is this magnificent term called bio-cumulation that occurs. What happens is there is a gradual accumulation of the pesticide in prey items that are then accumulated and absorbed into the fatty tissues of animals. So particularly things like whales and dolphins that have got large fatty tissues, they end up storing and accumulating a concentrated amount over time that is way beyond the external environmental levels at that time. There have been things associated with wildlife in Australia such as Peregrine Falcons and a whole raft of other species due to egg shell thinning. This resulted in the loss of reproductive output from a whole range of animals so it's been pretty dramatic right throughout the world.“It's in those species which are perhaps at the higher end of the food chain where there is this magnificent term called bio-cumulation that occurs. What happens is there is a gradual accumulation of the pesticide in prey items that are then accumulated and absorbed into the fatty tissues of animals. So particularly things like whales and dolphins that have got large fatty tissues, they end up storing and accumulating a concentrated amount over time that is way beyond the external environmental levels at that time. There have been things associated with wildlife in Australia such as Peregrine Falcons and a whole raft of other species due to egg shell thinning. This resulted in the loss of reproductive output from a whole range of animals so it's been pretty dramatic right throughout the world.“ People who believe it should be reused only believe in big business and see it as a way of making money and fixing a problem temporarily.

We need to protect our environment and there needs to be an environmentally friendly alternative for malaria protection, one that works and that does more good than bad in the future. We need to protect and save all types and species of life not just our own.