The Unknown. Flashcards
1
Q
what are command and control regulations?
A
- specific limits on pollution levels and/or mandatory regulations on specific pollution control technologies
- may limit companies who might have a different and more efficient pollution limiting method that doesn’t apply
2
Q
what are primary air pollutants? What are secondary air pollutants?
A
- primary: CO2, NO2, SO2, PM2.5, NO
- secondary: ground level ozone (O3 + VOC)
3
Q
What are the regulated air pollutants?
A
- criteria air pollutants, persistent organic pollutants, toxic air pollutants, heavy metals
4
Q
What makes photochemical smog?
A
- ground level ozone + SO2 + NOX + PM2.5
5
Q
what is the order or EROEI for all forms of energy?
A
- hydro, PV, wind, coal, nuclear, geothermal, NG
6
Q
why is NG cleaner than coal?
A
- produces 30-40% less CO2 than coal does
7
Q
Which form of fossil fuels has the highest carbon footprint?
A
- oil sands 3:1 EROEI
8
Q
How much more energy does nuclear provide over fossil fuels?
A
- 10 million x more
9
Q
What is NS’s primary source of electricity?
A
- still coal, ~55% but it’s working towards wind
10
Q
Why are the 3 Gorges Dam Emissions still low?
A
- because the energy density is very high
11
Q
Why is tidal power a slow growing industry?
A
- the coastal requirements are very specific, and the energy demands often do not align with tidal times
12
Q
What is the primary form of waste management?
A
- waste reduction
13
Q
how much of Canadian waste is organic?
A
28% can be composed
14
Q
True or false: electricity would be cheaper if we used renewables
A
true
15
Q
Which renewable has the highest EROEI? Why?
A
- highest EROEI for hydro : highly efficient, converts 80% mechanical to electrical
