Abbreviations and equivalences
Archived information
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Abbreviations
oC
degree Celsius
CAC
criteria air contaminant
CAFC
company average fuel consumption
CH4
methane
cm
centimetre
CMA
Census metropolitan area
CO
carbon monoxide
CO2
carbon dioxide
g
gram
GDP
gross domestic product
GHG
greenhouse gas
GJ
gigajoule
GW
gigawatt
GWh
gigawatt hour
h
hour
ha
hectare
H20
water
kg
kilogram
km
kilometre
km2
square kilometre
km3
cubic kilometre
kt
kilotonne
kW
kilowatt
L
litre
m2
square metre
m3
cubic metre
MJ
megajoule
mm
millimetre
Mt
megatonne
MW
megawatt
MWh
megawatt hour
N2
nitrogen
N2O
nitrous oxide
NAFTA
North American Free Trade Agreement
NAICS
North American Industry Classification
System
NH3
ammonia
NH4+
ammonium ion
NO
nitric oxide
NO2
nitrogen dioxide
NOx
nitrogen oxides
02
oxygen
PCB
Polychlorinated biphenyl
PJ
petajoule
PM
particulate matter
PM2.5
particulate matter less than
or equal to 2.5 microns
PM10
particulate matter less than
or equal to 10 microns
s
second
SO2
sulphur dioxide
SOx
sulphur oxides
SUV
sport utility vehicle
t
tonne
TEQ
toxic equivalency
TJ
terajoule
t-km
tonne kilometre
TPM
total particulate matter
VOC
volatile organic compound
Equivalences
1 hectare =
1 km2 / 100
1 km2 =
100 hectares
1 tonne =
1,000 kilograms
Prefixes of the Metric System
Prefix and (abbreviation)
Multiplication
factor
exa (E)
1018
peta (P)
1015
tera (T)
1012
giga (G)
109
mega (M)
106
kilo (k)
103
hecto (h)
102
deca (da)
101
deci (d)
10-1
centi (c)
10-2
milli (m)
10-3
micro (µ)
10-6
nano (n)
10-9
pico (p)
10-12
femto (f)
10-15
atto (a)
10-18
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