Apes 6 Flashcards
Dose-response analysis
Organisms are exposed to a toxin at different concentrations, and the dosage that causes the death of the organism is recorded
Dose-response curve
The information from a set of organisms is graphed, and the resulting curve is referred to as dose-response curve
LD
50
Dosage of toxin it takes to kill 50% of the test animals
ED
50
50% of the test organisms show a negative effect from the toxin
Vector
Carrier organism
Risk assessment
Calculating risk
Risk management
Means using strategies to reduce the amount of risk
Stationary sources
Factories or power plants
Sulfur oxides
SO And SO
2 3
Photochemical Smog
Different types of smog usually formed on hot, sunny days in urban areas
Industrial smog (gray smog)
Burning of large amounts of low-quality coal to heat homes and combat a cold fog
Chlorofluorocarbons
Man-made chemicals
Acid precipitation
A result of pollution in the atmosphere
Dry acid particle deposition
Occurs two to three days after emissions into the atmosphere
Wet deposition
Usually delayed for four to fourteen days after emissions
Catalytic Converter
Controlling emissions in cars
Corporate Average Fuel Economy
Intended to Reduce both fuel consumption and emotions
Anthropogenic greenhouse gas
Carbon dioxide, methane, nitrous oxide
Heat islands
Urban environments that are generally about 20 degrees warmer then the country side surrounding them
Temperature inversion
Thermal pollution associated with many urban environments
