air pollution Flashcards
Troposphere
Layer of the atmosphere you find the most air pollution
Pollution travels with
wind systems
emits terpenes and ethylene
plants
emits ash and sulfur-containing compounds
volcanic emissions
forest fires
natural if started by lightning, releases carbon-containing compounds
stationary
single, for sure source
emissions from mobile source
mobile
large areas of diffused pollution
area
main cause of air pollution in USA
vehicle exhaust
primary source
comes directly from a source, ex; exhaust pipe
secondary source
created by sunlight, water, oxygen (ozone)
Clean Air Act
created in 1970, the Environmental Protection Agency is required to regulate emissions of the six criteria air pollutants
Six Criteria Air Pollutants
troposphere ozone, sulfur dioxide, nitrogen oxides, carbon monoxide, lead, and particulate matter
Tropospheric Ozone
secondary pollutant cased by sunlight, water, oxygen, and either sulfur dioxide or nitrogen oxides.
Chorofluorocarbons (CFC’s) were used in ____ and majorly effected ____
spray cans and refrigerator units, depletion of the ozone
Worldwide bill to eliminate all CFC’s
Montreal Protocol
We can take steps to improve the air quality in the US by
using alternate energy sources, find cleaner fuels, and promote awareness
Sulfur dioxide, nitrogen oxides and carbon monoxide can be caused by
burning fossil fuels
Lead was commonly found in _____ and caused ____ issues
paint and gasoline, respiratory issues
The worst pollutant in North Carolina is
particulate matter
One source of PM(2.5) is
smoke/ash
One source of Pm(10) is
dust
What was a common use of asbestos
insulation
What does VOC stand for?
Volatile Organic Compounds
What is an easy way to tell if something is a VOC
smell
gasoline and acetone are two examples of a
VOC
Radon is considered an indoor pollutant because
it seeps from the ground into buildings where it becomes trapped.
Air Quality Scale: Green
best air quality
Air Quality Scale: Yellow
some pollution but not much
Air Quality Scale: Orange
dangerous for sensitive people
Air Quality Scale: Red
potentially dangerous for some people
Air Quality Scale: Burgundy
dangerous for all people
Urban areas make more money, also creating more
air pollution
Smog is created with
Smoke and fog
Photochemical (brown smog) has these characteristics: Is the worst during ____, Comes from ____, Is made of _____, Worst in _____
noon, comes from vehicle exhaust, nitrogen oxides, worst in Beijing and LA
Sulfurous (Gray smog) has these characteristics: Is the worst during ____, Comes from ____, Is made of _____, Worst in _____
Worst in London and NY, Comes form industrial emissions, sulfur dioxide, morning
______ or ______ mixing with water create acid rain
Sulfer dioxide or nitrogen oxides
Two effects of acid rain
loss of soil fertility, trees weaken often ending in death