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Chapter 19 pesticides in the environment

Terms in this set (6)

list ways that a pesticide can move from a site of application.
violet eyes turn into gas from treated surface, be rinsed off a treated surface and enter the soil, be carried laterally off runoff or soil erosion, leads through soil, be ingested by an animal that eats a pest that was treated with a pesticide.
explain ways that pesticide can end up in animals including humans.
two ways, bioaccumulation occurs in a particular organism builds up in the fat tissues, while biomagnification occurs across the series at organism when one eats the other and they all are contaminated by the N person you get a chance of being sick.
explain how pesticides can get into surface or groundwater and Define the term point and nonpoint source population.
groundwater can get contaminated via the pores of rocks and cracks between the sand grains and mineral particles Underground. point source pollution comes from pacified spills entering storm sewer, backhoe siphoning, repeat it fills a mixing loading sites, careless spilling of washing water to clean up, improper handling the spills, improper disposal containers,. nonpoint source pollution comes from a widespread area runoff seepage and leaching from areas of application takes the pressure side into areas that should not be it's often difficult or impossible to identify the source of a pesticide and groundwater and might take very long time to clean up.
describe how different characteristics of pesticides absorcion solubility can affect movement of a pesticide from a Target.
solubility is a measure of how easy chemical will dissolve in a solvent usually water. Absorption degree of attachment the soil to particles. Volatility when the pesticide turns into gas and then can be moved Downstream by drip or wind. persistence how long the pesticide contamination will stay for. Degradation how long it will take for the pesticide to break down to something simpler and less toxic compounds.
outline how site conditions affect the movement of pesticides.
if the soil is silty or clade is good structure and and drainage is relatively good for capturing pastides until they can broken out to microbial activity. If the soil is sand gravel Bedrock for large fractures you can contaminate Leach down with little chance of filtering and if it's close to the ground water then we have a problem.
list some management practices that help prevent contamination of surface and groundwater.
securing pesticide containers in the back of a vehicle to prevent spills during transport, store pesticides over and impermeable floor and check frequently or damaged containers, store-bought pesticides and secondary containment, mixing or loading pesticides over only in Imperial pad, using an air gap or backflow protection device to protect your water supply when mixing pesticides, disposing of pesticides waste properly.
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