*Air Pollution Flashcards
Define air pollution
Any substance introduced into the atmosphere that has damaging effects on living things and the environment
What are some sources of air pollution?
Vehicle emissions
Industrial emissions
Smoke and burning
Air pollution is the most important environmental health risk of our time, true or false?
True
Air pollution cause 1 in 7 deaths, true or false?
False, 1 in 9
What are the five types of air pollution?
Industrial smog
Sulphureous smog
Photochemical smog
Criteria pollutants
Inside home/workplace pollution
What is IAQ?
Indoor Air Quality
What are primary pollutants?
Substances emitted directly into the atmosphere
What are secondary pollutants?
Substances that are already in the atmosphere that react with sunlight
What are 4 causes of incomplete combustion?
- Combustion temp not high enough
- O2 supply limited
- Fuel
- Not enough time to burn completely
What does incomplete combustion cause?
Carbon monoxide
Sulphur oxides
Nitrogen oxides
Fly ash
Unburned hydrocarbons
What contributes to industrial and sulphureous smog?
Combustion of real
hydrocarbons like gas and diesel
What does VOC stand for and how is it created?
Volatile Organic Compound
Cause by HC evapouration
What is “good ozone”?
Stratospheric ozone, helps protect from UV rays
What are the 7 criteria pollutants?
Sulphur Oxides (SOx)
Nitrogen Oxides (NOx)
Volatile Organic Compounds (VOCs)
Carbon Monoxide (CO)
Particulate Matter (PM)
Ammonia ( NH3)
Ground-Level Ozone (O3)
What is known as the “silent killer” and why?
Carbon monoxide, it reduces your bodies ability to carry oxygen in your blood and cause you to asphyxiate