Category
Pre-standards
(1970)
(7)
TLEV
(8)
LEV
(9)
ULEV
(10)
SULEV
Canada 1975
standards
Canada 1987
standards
Canada 1997
standards
Notes:
1.
Total organic gases (hydrocarbons)
2.
Non-methane organic gases (hydrocarbons)
3.
Carbon monoxide
4.
Nitrogen oxides
5.
Particulate matter, 2.5 microns and less. A health hazard, such particles are major contributor to
smog.
6.
Carbon dioxide. Carbon dioxide is a non-toxic "greenhouse gas".
7.
Transitionary low emissions vehicle. This is considered to be "50% cleaner" than was the 1999
minimum new car standard in California.
8.
Low emissions vehicle. This is considered to be "70% cleaner" than California's 1999 basic new
car standard.
9.
Ultra-low emissions vehicle. This is considered to be "85% cleaner" than California's 1999
minimum new car standard. In 1999, 5 models available in California met these standards. They
were the natural gas Ford Crown Victoria, the gasoline Honda Accord EX/LX sedan, the
gasoline Honda Accord EX/LX coupe, the natural gas Honda Civic GX, and the gasoline Mazda
Protégé.
10.
Super-ultra-low emissions vehicle.
Comparison to Various Car Emissions Standards
Smong-Causing Compounds
Hydrocarbons
Monoxide
NMOG
(1)
TOG
(2)
g/km
g/km
g/km (g/mi)
(g/mi)
(g/mi)
5.5 (8.8)
0.097
-
(0.156)
0.056
-
(0.090)
0.034
-
(0.055)
0.006
-
(0.010)
1.2 (1.9)
0.25 (0.4)
2.1 (3.38)
0.25
0.16
2.1 (3.38)
(0.4)
(0.26)
Carbon
Nitrogen
Oxides
(3)
(4)
CO
NOx
g/km (g/mi)
54 (86)
2.2 (3.5)
2.6 (4.2)
0.37 (0.6)
2.6 (4.2)
0.04 (0.07) 0.006 (0.01)
1.3 (2.1)
0.04 (0.07) 0.006 (0.01)
0.6 (1.0)
0.01 (0.02) 0.006 (0.01)
16 (26)
1.93 (3.19)
0.62 (1.0)
0.25 (0.4)
Greenhouse
Gas
Particulate
Carbon
Matter
Dioxide
(5)
(6)
PM
CO
2
g/km (g/mi)
g/km (g/mi)
?
?
0.024 (0.04)
-
-
-
-
-
-
-
-
0.05 (0.08)
-
86