- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
25 Cards in this Set
- Front
- Back
|
The 1970's law that regulates 6 primary air pollutants is the ___ ____ Act.
|
Clean Air Act
|
|
A mnemonic device that will help you remember the primary air pollutants is __ __ __ __ __ __ __ __ __ __
|
VOCONOSOPM
|
|
Lead is an air pollutant regulated by the Clean Air Act, but is not a problem anymore. Why?
|
We use unleaded gasoline in cars.
|
|
VOC stands for....
|
volatile organic compound
|
|
"volatile" means ...
|
evaporates quickly
|
|
"organic" means...
|
it has carbon & hydrogen in it
|
|
Paint thinners, gasoline, solvents, and many aerosols contain lots of which primary air pollutant?
|
VOCs
|
|
CO is a chemical formula for which primary air pollutant?
|
carbon monoxide
|
|
Carbon monoxide is regulated because it is very
|
toxic to breathe. It will kill you.
|
|
Carbon monoxide can be mostly found in ....
|
car exhaust
|
|
Most VOCs are emitted when....
|
you fuel your car
|
|
NOx stands for....
|
nitrogen oxides
|
|
SOx stands for ....
|
sulfur oxides
|
|
NOx primarily comes from....
|
car engines, industry, and fertilizers
|
|
SOx emissions mostly come from...
|
burning coal to make electricity
|
|
Air pollutants that come straight from some source, like a tail pipe or smokestack are called....
|
primary pollutants
|
|
Air pollutants that arise from interactions with each other, sun, and water, in our atmosphere are called....
|
secondary pollutants
|
|
VOCs + NOx + sunlight = ....
|
ozone, (ground-level type)
|
|
At what time of day is ground-level ozone the worst?
|
from about 11 AM to 6 PM, in the heat of the day
|
|
Why is ozone bad after noon?
|
The sunlight is most intense and the sun is the energy that causes it.
|
|
Is the ozone level at a higher elevation worse or better than at a lower elevation?
|
worse
|
|
Secondary pollutants that require sunlight for their formation are called....
|
photochemical smogs
|
|
NOx + sunlight leads to a ____-colored smog.
|
brown
|
|
The haze in our mountains is caused in part by emissions of VOCs from natural items such as....
|
trees and grass
|
|
To prevent contributing to the ground-level ozone problem, when should you mow your grass?
|
early morning or early evening, when sun is not intense
|
