Pesticides. J.W. C.V. Biology SB1-01. Pesticide – The Breakdown. Pest. Cide. 1. Killer: bactericide. 2. Act of killing: ecocide.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
1. Killer: bactericide.
2. Act of killing: ecocide.
Cide : A suffix that means "a killer of." It is used to form the names of chemicals that kill a specified organism, such as pesticide, a chemical that kills pests
1. An annoying person or thing; a nuisance.
2. An injurious plant or animal, especially one harmful to humans.
3. A deadly epidemic disease; a pestilence.
Pesticides are a toxic chemical that has more
harmful affects then positive affects on
human heath and environmental vitality
Quick Fact:Only 5 percent of pesticides reach targeted weeds, the rest runs off into water or into the air where it can drift from 12 feet to 14.5 miles away
The pesticide is absorbed by the soil
The pesticides chemical structure changes
There are three main transformation processes
Pesticide is transported most commonly by mass flow and diffusion
4. Plant Uptake
The process of pesticide being taken into the plant, where it now resides inside the plants internal structure
- children have more rapid breathing
- metabolic rates
- greater surface to body mass ratios
- thinner skins
- spend more time in contact with the ground
- more frequently place their fingers in their mouths
Quick Fact:Children whose homes and gardens are treated with pesticides have 6.5 times greater risk of leukemia than children living in untreated environments.
- especially those with asthma, lupus erythematosus, vacuities, dermatitis and chemical sensitivities
- pets, wildlife of all kinds and their habitat
Main risks for adults
Main risks for children
cancer: leukemia and brain cancer
asthma and allergies
polyneuritis with numbness and pain in lower limbs.
gangrene (tissue death) of the extremities
Animals may develop
abnormal thyroid function
decreased hatching success
demasculinization and feminization of males
alteration of immune function
Rea, William J., 1996, Pesticides. Journal of Nutritional and Environmental Medicine 6, 55-124.
Lowengart, et al., 1987, Journal of National Cancer Institute, 79: 39-46.
Eagles Eye, World Wildlife Fund Publication. Summer 1995.
Irwin, J. Pesticides, Are They Silent Killers? Family Practise July 20,1991
Journal of the American Medical Association 1989;30:1306. Mayo Clinic;Medical Toxicology 1988;3:350-75. National Poisons Unit, Guy's Hospital, London, England.
Goodman and Gillman, The Pharmacological Basis of Therapeutics, 1985, Macmillian Publishing Company, New York.
Seilier J.P. 1979, Phenoxyacids as inhibitors of testicular DNA syntheses in male mice. Bull. Environ. Cont. Toxic vol. 21:89-92.
Lerda, D. & R.Rizzi, 1991, Study of reproductive function in persons occupationally exposed to 2,4-dichloraphenoyactetic acid (2,4-D) Mut. Res. 262: 47-50.
Hammond, M., 1995, Pesticide Bylaws: Why We Need Them and How to Get Them. Consultancy for Alternative Education, Quebec.
Spears T., 1995, Toronto Star April 29.