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         Pesticides Environment:     more books (100)
  1. Injunction being sought to halt use of pesticides.(Environment)(Environment: Critics of the plan say it would be costly for farmers and foresters.): An article from: The Register-Guard (Eugene, OR)
  2. Pesticides in Urban Environments: Fate and Significance (Acs Symposium Series) by Kenneth D. Racke, 1993-01
  3. Pesticides and the Environment: Monographs (Public Administration Series : Bibliography, No P1638) by Mary Vance, 1985-03
  4. Use and Significance of Pesticides in the Environment by Freeman Lester McEwen, 1979-05
  5. Pesticide Chemistry: Human Welfare and the Environment (International Congress of Pesticide Chemistry//Proceedings)
  6. Pesticide Residues in Food, 1985: Evaluations Report Sponsored Jointly by Fao & Who : Part 2 : Toxicology/F3047 (Pesticide Residues in Food) by FAO Panel of Experts on Pesticide Residues in Food and the Environment, 1987-09
  7. Pesticide Residues in Food: Report 1991 (Pesticide Residues in Food) by FAO Panel of Experts on Pesticide Residues in Food and the Environment, 1991-12
  8. Pesticide Residues in Food, 1986 (Pesticide Residues in Food) by FAO Panel of Experts on Pesticide Residues in Food and the Environment, 1987-10
  9. Pesticides Residues in Food, 1977 Evaluations: The Monographs : Data and Recommendations of the Joint Meeting of the Fao Panel of Experts on Pestici by Joint Meeting of the FAO Panel of Experts on Pesticide Residues in Food and the Environment and the WHO Expert Group on Pesticide Residues, 1981-04
  10. Pesticide Residues in Food, 1982: Report of Joint Fao/Who Meeting in Expects (Pesticide Residues in Food) by FAO Panel of Experts on Pesticide Residues in Food and the Environment, 1983-12
  11. Pesticide Residues in Food, 1986: Evaluations 1986, Part 1 : Residues (Pesticide Residues in Food) by FAO Panel of Experts on Pesticide Residues in Food and the Environment, 1987-06
  12. Pesticide Residues in Food, 1989 Evaluations (Pesticide Residues in Food) by FAO Panel of Experts on Pesticide Residues in Food and the Environment, 1990-08
  13. Pesticides in Soil and Groundwater
  14. Application of artificial neural networks to assess pesticide [An article from: Science of the Total Environment, The] by G.B. Sahoo, C. Ray, et all 2006-08-15

41. Toronto Environment Alliance - Pesticides
Prior to the advent of chemical pesticides, this plant was a common component of pride in your lawn, the care you provide it and the environmental ethic which
http://www.torontoenvironment.org/pesticides/organic_lawn_care.html
Organic Lawn Care
The guiding principle of organic lawn care is to nourish the soil. In this way, it differs fundamentally from chemical lawn care, which focuses on feeding the grass. Restoring and protecting soil health is crucial for the maintenance of a lush, naturally pest and disease resistant lawn. A healthy soil is alive. A diverse collection of organisms (many too small to see with the human eye) interact in complex and intricate ways. Together they break down organic matter, make nutrients available for plant uptake and aerate the soil. Soil aeration is important for water storage and air exchanges. Research shows that chemical fertilizers and pesticides degrade soil life and decrease the level of biological activity. Comparison of Chemical and Organic Lawn Care Chemical Lawn Care Organic Lawn Care low biological activity in the soil high biological activity in the soil focuses on correcting problems with chemical inputs focuses on prevention through appropriate cultural methods (i.e., mowing high)

42. Pesticide Education Resources, University Of Nebraska
pesticides Protection of the environment American Assoc. of Pesticide Safety Educators Endangered Species Protection Program environmental
http://pested.unl.edu/
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Visitors since 1/12/96 Pesticide Safety Programs - Nebraska Cockroach Control Manual Cockroach Combat Workshops Creating a Horticultural Paradise Master Gardener Education Pesticide Applicator Training Pesticide Container Recycling Program School IPM Subterranean Termite Handbook Termite Control Workshop Wild World of Pest Management American Assoc. of Pesticide Safety Educators Endangered Species Protection Program Environmental Protection Agency EPA Office of Pesticide Programs EXTOXNET (EXtension TOXicology NETwork) EXTOXNET - Pesticide Information Profiles (Cornell) Fertilizer and Pesticide Containment Guidelines Industry Taskforce II on 2,4-D Research Data NPIC - National Pesticide Information Center Rinsing Pesticide Containers Spray Drift of Pesticides Pesticide-Related NebGuide Index Health Protection and Pesticide Safety American Assoc. of Pesticide Safety Educators ATSDR (HazDat Database) EXTOXNET (EXtension TOXicology NETwork) EXTOXNET - Pesticide Information Profiles (Cornell) FDA Pesticide Program Residue Monitoring Program Food Quality Protection Act (EPA) Integrated Risk Information System (EPA) Laundering Pesticide Contaminated Clothing Keep Pesticides Out of Tractor/Sprayer Cabs NPIC - National Pesticide Information Center Pesticide ... Safety on Home Grounds

43. EXTOXNET TIBs - MOVEMENT OF PESTICIDES IN THE ENVIRONMENT
Revised 9/93. MOVEMENT OF pesticides IN THE environment. INTRODUCTION. Following release into the environment, pesticides may have many different fates.
http://extoxnet.orst.edu/tibs/movement.htm
E X T O X N E T Extension Toxicology Network Toxicology Information Briefs A Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State University, the University of Idaho, and the University of California at Davis and the Institute for Environmental Toxicology, Michigan State University. Major support and funding was provided by the USDA/Extension Service/National Agricultural Pesticide Impact Assessment Program. EXTOXNET primary files maintained and archived at Oregon State University Revised 9/93. MOVEMENT OF PESTICIDES IN THE ENVIRONMENT INTRODUCTION The widespread use and disposal of pesticides by farmers, institutions and the general public provide many possible sources of pesticides in the environment. Following release into the environment, pesticides may have many different fates. Pesticides which are sprayed can move through the air and may eventually end up in other parts of the environment, such as in soil or water. Pesticides which are applied directly to the soil may be washed off the soil into nearby bodies of surface water or may percolate through the soil to lower soil layers and groundwater. Pesticides which are injected into the soil may also be subject to the latter two fates. The application of pesticides directly to bodies of water for weed control, or indirectly as a result of leaching from boat paint, runoff from soil or other routes, may lead not only to build up of pesticides in water, but also may contribute to air levels through evaporation.

44. EXTOXNET FAQs - Pesticides, The Environment, And You
pesticides How They Affect You And The environment. Questions About Pesticide environmental Fate. Questions About What is in pesticides Inert Ingredients.
http://extoxnet.orst.edu/faqs/pesticide/pesthome.htm
Pesticides: How They Affect You And The Environment. The food Americans eat must be free from unsafe pesticide residues. Infants and children especially must be protected from the health threats posed by pesticide residues, because they are among the most vulnerable groups in our society.
W ith statements like this, it's easy to see that pesticides are a concern to everyone. So, what are pesticides, what do they do, where are they used, how are they used , and why are they on food? These are just a few of the questions that many people ask about pesticides. The following pages have been developed to help answer some of the most frequelntly asked questions that you may have about pesticides and how they affect us and the world we live in. Questions About Pesticide Exposure Questions About Pesticides in Food Questions About Pesticide Environmental Fate Questions About What is in Pesticides - Inert Ingredients Questions About Gardening and Pesticides Questions About Endocrine Disruptors Pesticides in Drinking Water Extoxnet FAQHome This Page prepared by B.T. Johnson

45. Environmental Issues Site - Information About Environmental Issues
16/04 A Weekly Column from the Editors of E/The Environmental Magazine PANNA Chemical Trespass pesticides in Our Bodies and Corporate Accountability Many US
http://environment.about.com/
zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Environmental Issues Home Essentials ... Glossary zau(256,152,180,'gob','http://z.about.com/5/ad/go.htm?gs='+gs,''); Activism Climate Change Energy Sources Election 2004 ... Help zau(256,138,125,'el','http://z.about.com/0/ip/417/0.htm','');w(xb+xb);
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Supreme Court rules U.S. can skip environmental study
The Supreme Court returned a ruling Monday, which would allow Mexican trucks operating on U.S. roadways to skip an air quality study. According to ENN , the court's unanimous decision was that the president has the authority to let trucks in, and the Federal Motor Carrier Safety Administration has no say in the matter. ENN/AP Read more...
Tuesday June 08, 2004
Dear EarthTalk For 06/06/04
A Weekly Column from the Editors of E/The Environmental Magazine.
This Week's Questions
    Dear EarthTalk:What happened to the “paperless office” that computers were supposed to create, and what is the environmental impact of our paper usage? Michelle Barnes, Virginia Beach, VA

46. Pesticides - About.com Environmental Issues Guide Site
potential adverse public health and environmental effects associated with the use and misuse of pesticides from your About.com Environmental Issues Guide site.
http://environment.about.com/od/pesticides/
zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Environmental Issues Health and Toxics Toxics Pesticides Home Essentials Climate Change and Global Warming Image Gallery ... Glossary zau(256,152,180,'gob','http://z.about.com/5/ad/go.htm?gs='+gs,''); Activism Climate Change Energy Sources Election 2004 ... Help zau(256,138,125,'el','http://z.about.com/0/ip/417/0.htm','');w(xb+xb);
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Pesticides
Information about pesticides and their alternatives.
Alphabetical
Recent Up a category Pesticides and Human Health A fact sheet from the Environmental Media Services about pesticides and human health. Pesticides - FAQs Frequently asked questions about pesticides from your About.com Environmental Issues Guide site. A Word about Risk - Pesticide Exposure Risk factors for pesticide use and common routes of exposure for children. Pesticides and Children Exposure is the most important factor determining children's increased risk from pesticides. Reducing Childhood Exposures to Pesticides How to protect your children from unnecessary pesticide exposure. Tips for parents reprinted form Environmental Media Services.

47. G7520 Pesticides And The Environment
pesticides and the environment. Figure 1. The three major fate processes of pesticides in the environment are adsorption, transfer and degradation.
http://muextension.missouri.edu/explore/agguides/pests/g07520.htm
Agricultural
Pesticides and the Environment
C.L. Brown and W.K. Hock
Penn State University Darryl P. Sanders
Department of Entomology, University of Missouri-Columbia James H. Jarman
Integrated Pest Management, University of Missouri-Columbia Once a pesticide is introduced into the environment, whether through an application, a disposal or a spill, it is influenced by many processes. These processes determine a pesticide¹s persistence and movement, if any, and its ultimate fate. The fate processes can be beneficial. They can move a pesticide to the target area or destroy its potentially harmful residues. Sometimes they can be detrimental, leading to reduced control of a target pest, injury of nontarget plants and animals, and environmental damage. Of particular concern today is the movement of pesticides into groundwater. Different soil and climatic factors and different handling practices can promote or prevent each process. An understanding of the fate processes can help every pesticide applicator ensure that applications are not only effective, but are also environmentally safe.
The fate processes
Fate processes fall into three major types: adsorption, transfer, and degradation (see Figure 1).

48. NRDC: The Story Of Silent Spring
countless more, and remained toxic in the environment even after it was diluted by rainwater. Carson concluded that DDT and other pesticides had irrevocably
http://www.nrdc.org/health/pesticides/hcarson.asp

Pesticides
In Brief : History
The Story of Silent Spring
How a courageous woman took on the chemical industry and raised important questions about humankind's impact on nature.
Although their role will probably always be less celebrated than wars, marches, riots or stormy political campaigns, it is books that have at times most powerfully influenced social change in American life. Thomas Paine's Common Sense galvanized radical sentiment in the early days of the American revolution; Uncle Tom's Cabin by Harriet Beecher Stowe roused Northern antipathy to slavery in the decade leading up to the Civil War; and Rachel Carson's Silent Spring , which in 1962 exposed the hazards of the pesticide DDT, eloquently questioned humanity's faith in technological progress and helped set the stage for the environmental movement. Carson, a renowned nature author and a former marine biologist with the U.S. Fish and Wildlife Service, was uniquely equipped to create so startling and inflammatory a book. A native of rural Pennsylvania, she had grown up with an enthusiasm for nature matched only by her love of writing and poetry. The educational brochures she wrote for the Fish and Wildlife Service, as well as her published books and magazine articles, were characterized by meticulous research and a poetic evocation of her subject.
"Things Go Out of Kilter"

49. Nearctica - Environment - Pesticides
pesticides. Click Here. Natural History Ecology Family environment Evolution Home Education Home Conservation Geophysics Paleontology Commercial Organizations.
http://www.nearctica.com/environ/pest/pest.htm
Pesticides Special Segments Butterflies of North America Conifers of North America Eastern Birds List of N.A. Insects Home Eastern Wildflowers General Topics Natural History Ecology Family Environment Evolution Home Education Home Conservation Geophysics Paleontology Commercial Organizations Return to Environment Main Page General Technical Information on Pesticides Pesticide Law and Regulations State and Provincial Agencies Regulating Pesticides University Pesticide Training Courses and Impact Assessment ... Independent Organizations Interested in Pesticides

50. Nearctica - Environment - Pesticides - Health And Environment
pesticides Health and environment. This is probably the most comprehensive and valuable resource on the web about the impact of pesticides on the environment.
http://www.nearctica.com/environ/pest/impact.htm
Pesticides - Health and Environment Special Segments Butterflies of North America Conifers of North America Eastern Birds List of N.A. Insects Home Eastern Wildflowers General Topics Natural History Ecology Family Environment Evolution Home Education Home Conservation Geophysics Paleontology Commercial Organizations Return to Pesticides Main Page This page contains links to web sites with information on the impact of pesticides on human health and the environment.
General
Environment
Health
GENERAL EXTOXNET Pesticide Information Profiles . Pesticide Information Profiles (PIPs) are documents providing specific pesticide information relating to health and environmental effects. Each PIP for a particular pesticide provides information on toxicological effects, ecological effects, trade names and regulatory status, chemical class, physical properties, and environmental fate. Technical, but highly recommended. Pesticides at the Crossroads . This site is dedicated to future research on pesticides, the environmental impacts of pesticides, and alternatives to pesticides. Included at the site are a large number of original articles and links to articles on other sites on the web. The site is particularly strong on Integrated Pest Management and the effects of pesticides on human health and the biotic environment. Recommended.

51. City Of Toronto: Environment Portal
environment Days are your opportunity to divert waste and make your home waste and in effect The Bylaw allows some limited use of pesticides for infestations
http://www.city.toronto.on.ca/environment/
Pesticides Toronto Atmospheric Fund Healthy People Healthy Environment Waste Diversion Task Force 2010 ... more...
Clean spring ... litter free summer, fall and winter!
Great job everybody!

Thousands of people across the city took to the streets, school yards, parks and ravines to clean up Toronto during the 20-Minute Toronto Makeover and Mayor Miller's Community Clean-Up Day. More than 30,000 people registered to participate in the 20-Minute Makeover and more than 14,000 people signed up to take part in the Community Clean-Up event Environment watch The City's fleet is going green!
The Administration Committee adopted the Green Fleet Transition Plan at it's April meeting, the Plan will now go forward for consideration at Council's May 2004 meeting. If adopted by Council, the City has the opportunity to reduce carbon dioxide emissions by 23 per cent over the four years of the plan. The 2004 Environment Days are underway!
Get ready to clean out your basement, closets and garage of all the items you no longer use. Learn more about the various items you can drop off, pick up and purchase at an Environment Day event near you. Environment Days are your opportunity to divert waste and make your home waste and energy efficient. Head out to one this weekend!

52. Healthy People Healthy Environment - Toronto Public Health
To protect human health and the health of our environment, a bylaw has been passed that restricts the use of pesticides in the City of Toronto.
http://www.city.toronto.on.ca/health/hphe/pesticides_index.htm
Public Health Home A - Z Index HPHE Home Reports and publications ... Environmental health links Healthy People Healthy Environment
Pesticides are used to kill insects, weeds, plant diseases and other unwanted living things. The effects of pesticides are not limited to the plants to which they are applied. They also affect humans, animals and the environment.
Toronto Public Health believes that if there is a chance that harm may arise from exposure to pesticides, it is better to avoid the risk for the sake of protecting ones' health. To protect human health and the health of our environment, a by-law has been passed that restricts the use of pesticides in the City of Toronto. Find out more about the health effects of pesticides. Find out more about what the City is doing around pesticide reductions.
Email us at pesticide@toronto.ca

53. WQ-19
pesticides and the environment. This publication provides a general overview of how pesticides interact with the environment. What Happens After Application?
http://www.ces.purdue.edu/extmedia/WQ/WQ-19.html
WQ-19
Cooperative Extension Service
Purdue University
West Lafayette, IN
Pesticides and the Environment
Brad Joern and Becky Lohman, Department of Agronomy
Fred Whitford, Purdue Pesticide Programs
Introduction
Pesticides are designed to stop or limit pest occurrence. Insecticides kill insects, while herbicides kill weeds and fungicides suppress or kill fungi. All of these products are pesticides. Most of us recognize that pesticides allow agricultural producers to improve the quality, quantity and diversity of our food supply. In addition, pesticides are used in the timber, turf, horticulture, aquatic and structural pest control (exterminating) industries to protect the places where we live, work and play. Many homeowners and home gardeners also apply pesticides to their houses, yards and animals. It is important to understand the fate of a pesticide once it is applied, as this allows applicators to select the most effective and environmentally safe product. This publication provides a general overview of how pesticides interact with the environment.
What Happens After Application?

54. Pesticides And Parkinson Disease
is a naturally occurring substance that is eventually degraded in the environment, and as such it is considered to be benign compared to many other pesticides.
http://www.parkinson.org/pesticides.htm
N ational P arkinson F oundation   A World Wide Organization

Pesticides and Parkinson Disease
Summary of an article in Nature: Neuroscience by Ranjita Betabet et al , December 2000 Parkinson disease (PD) is one of the more common neurological diseases, affecting 1% of the population over 65. Although the symptoms and pathology of PD have been well characterized, the underlying mechanisms and causes of the disease are still unclear. In their article Beragbet et al report that chronic, long term administration, intravenously, of rotenone, a widely used pesticide, can induce the major features of PD in rats. This remarkable observation not only provides a new animal model for the study of PD, but will reinvigorate interest in the possible role of chronic, long-term exposure to pesticides and other toxins as a cause of human PD. The cause of PD is unknown. Some cases can be attributed to genetic factors, and several mutations have recently been described that lead to familial PD. Two of these mutations are in the genes encoding the proteins parkin and ubliquitin. These mutations lead to diseases, in humans, that are somewhat distinct, both clinically and pathologically from classical PD. How they relate to classical PD is, at present, unclear. The third class of mutations, in contrast, has been more informative. These affect the gene for synuclein, a synaptic protein of unknown function that is a major component of the filaments associated with Lewy bodies. MPTP is toxin that is known to cause a PD like illness. MPTP caused a PD like illness in drug addicts who injected it intravenously. MPTP causes a PD like illness because it is converted into another compound, MPP+, which is selectively taken-up by dopamine nerve cells. MPP+ accumulates in mitochondria (the storage batteries of each cell) where it inhibits complex I (also known as the NADH de-hydrogenase) one of the enzymes involved in oxidative phosphorylation (a method of generating energy for the cell).

55. Tox Town - Your Health, Toxic Substances, And The Environment - Text Version
to pesticides that it has found do not pose unreasonable risks to human health and the environment; it has registered at least 865 pesticides, which are used
http://toxtown.nlm.nih.gov/text_version/chemical/pesticides.html
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Tox Town - Text Version
Chemical: Pesticides
Chemical description
What are pesticides?
Pesticides are substances that prevent, destroy, repel, or reduce the severity of pests. Pests are living things that occur where they are not wanted, or that cause damage to humans, crops, or animals. Pests can be insects, mice, unwanted plants such as weeds, bacteria, viruses, or different types of fungus. Pesticides include algicides, which control algae in swimming pools and other bodies of water; antifouling agents, which kill organisms attached to boat bottoms; fungicides, which kill fungi such as mildew, mold, and rust; herbicides, which kill weeds; insecticides, which kill insects; and rodenticides, which control mice and other rodents. The U.S. Environmental Protection Agency (EPA) grants licenses, or registrations, to pesticides that it has found do not pose unreasonable risks to human health and the environment; it has registered at least 865 pesticides, which are used in thousands of pesticide products. Household products that are pesticides include cockroach baits and traps, insect repellants, rat and mouse poison, flea and tick sprays and collars for pets, disinfectants, products that kill mold and mildew, weed killers, bug and mosquito sprays and some swimming pool chemicals.

56. Environmental Yellow Pages - Health Effects Of Pesticides
Office of Pesticide Programs (OPP) protects public health and the environment from the risks posed by pesticides and promotes safer means of pest control.
http://www.enviroyellowpages.com/Resources/Health/pesticides.htm
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plastic manufactures enforcement process Click for Guides Home Resources Health HEALTH EFFECTS OF PESTICIDES Agrichemical and Environmental News Index - archive of a monthly report on pesticides and related environmental issues from Washington State University. Fate of Insecticides Used for Termite Control in Soil - provides information on effects of soil and chemical properties affecting behavior of termiticides in soil. EPA Methyl Bromide Phase Out - information source on this ozone depleting pesticide and efforts to discontinue its use. - from scientists at the U.S. Salinity Laboratory. Describes field experiments, sampling equipment and methods to reduce emissions.

57. Defra, UK - Environmental Protection - Pesticides Forum - Page Redirection
Local environment; Litter, Dogs. The pesticides Forum is now being managed by the pesticides Safety Directorate and the relevant web pages have now been
http://www.defra.gov.uk/environment/pesticidesforum/
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Environmental protection
Home Contact Defra About Defra News ... Environmental Protection
Pesticides Forum
Environmental Protection Index Air Quality Chemicals Climate Change ... Other material The Pesticides Forum is now being managed by the Pesticides Safety Directorate and the relevant web pages have now been transferred to their web site. See: Page last modified 6 January, 2003 Top Help Feedback Access Keys ... Department for Environment, Food and Rural Affairs

58. Pesticides - Making The Right Choice For The Protection Of Health And The Enviro
pesticides. 4. pesticides IN THE environment. Transportation and Chapter 4 pesticides IN THE environment. Figure 4.1 Pesticide
http://www.parl.gc.ca/InfoComDoc/36/2/ENVI/Studies/Reports/envi01/04-toc-e.html
PESTICIDES MAKING THE RIGHT CHOICE FOR THE PROTECTION OF HEALTH
AND THE ENVIRONMENT Report of the Standing Committee on
Environment and Sustainable Development
May 2000 TABLE OF CONTENTS CHAIR'S PREFACE TO THE REPORT EXECUTIVE SUMMARY: KEY DIRECTIONS FOR CHANGE INTRODUCTION PART A: BACKGROUND 1. THE FEDERAL REGULATORY SYSTEM AND THE ROLE OF THE PEST MANAGEMENT REGULATORY AGENCY 2. THE NEED FOR NEW LEGISLATION An Outdated Statute
Guiding Principles for the New Legislation
PART B: PESTICIDES AND THEIR HARMFUL EFFECTS 3. HISTORY OF PESTICIDE USE The Main Classes of Chemical Pesticides
Sectors of Pesticide Use

General Characteristics of Pesticides
... Research on Protecting Vulnerable Groups PART C: THE REGULATORY SYSTEM 8. RISK AND VALUE ASSESSMENTS Risk Assessment
Human Health
Toxicity ...
Special Reviews
PART D: PESTICIDE REDUCTION 11. ALTERNATIVES TO PESTICIDES Integrated Pest Management
Integrated Pest Management Research and Strategies
Government Research ...
Gradual Reduction in the Use of Pesticides for Cosmetic Purposes
PART E: A MORE OPEN AND TRANSPARENT PROCESS 13. INFORMING AND INVOLVING THE CANADIAN PUBLIC

59. Pesticides - Making The Right Choice For The Protection Of Health And The Enviro
4. pesticides IN THE environment. Transportation Figure 4.1 illustrates a typical path taken by certain pesticides in the environment. The
http://www.parl.gc.ca/InfoComDoc/36/2/ENVI/Studies/Reports/envi01/11-ch4-e.html
4. PESTICIDES IN THE ENVIRONMENT Transportation and Dispersion of Pesticides in Soil, Air and Water 4.1 Pesticides are released into the environment through human activities. They may contribute to point source pollution and area source pollution. A point source of pollution is a source such as an urban water collection system outfall which discharges pesticide-contaminated water at a specific location. An area source, for example, is one which discharges earth contaminated by pesticides into the aquatic environment. Agricultural area pollution is the greatest and most problematic source of pollution in aquatic environments in Canada. Once in the environment, certain pesticides break down relatively quickly, whereas others persist over longer periods of time and can accumulate or transform into contaminant by-products. In addition to movement through soil, pesticides can be mobilized by precipitation and wind. 4.2 Committee members learned from the testimony of Dr. Bernard Hill a scientist with Agriculture and Agri-Food Canada's Lethbridge Research Centre, that precipitation helps pesticides disperse far from their source through the natural phenomena of water evaporation and condensation. A study conducted in Alberta in 1998 showed that large quantities of the herbicide 2,4-D were found in precipitation in that region, even though that product breaks down quickly in the presence of oxygen. Researchers developed a number of hypotheses to explain this phenomenon which is specific to the Lethbridge area. They believe that the presence of pesticides in rain reflects the fact that Lethbridge farmers are among the greatest 2,4-D users in Alberta (more than 20,000 kg of 2,4-D is applied for grain production annually).

60. Ask NOAH About: Environmental Health
Lead Noise Pollution Radiation Safety Recycling Toxins and pesticides Water Quality Weather and Health, Advocacy for the environment General Resources Glossary
http://www.noah-health.org/english/illness/environment/environ.html
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Airnow - Environmental Protection Agency
Air Pollution And Health: The Ozone And Particulate Story - National Institute of Environmental Health Sciences
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Asbestos - American Lung Association
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Biological Contaminants: Basic Facts - Environmental Protection Agency
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Combustion Appliances: What You Should Know - Environmental Protection Agency
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Carbon Monoxide - Environmental Protection Agency
Carbon Monoxide Poisoning: Protect Your Family and Yourself - Environmental Protection Agency
Nitrogen Dioxide - Environmental Protection Agency
Indoor Air Quality (General)

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