|
Human Activity and the Environment: Annual Statistics
2006
Text table 1.6 Criteria air contaminant emissions from transportation
|
1990 |
2004 |
Change 1990 to 2004 |
|
tonnes |
percent |
|
|
|
|
Total particulate matter |
98,710
|
70,949 |
-28 |
Particulate matter less than
or equal to 10 microns |
97,444
|
69,872
|
-28
|
Particulate matter less than
or equal to 2.5 microns |
89,236
|
63,484
|
-28
|
Sulphur oxides |
113,431
|
66,022
|
-41
|
Nitrogen oxides |
1,577,967
|
1,274,212
|
-19
|
Volatile organic compounds |
995,686
|
630,291
|
-36
|
Carbon monoxide |
11,746,035
|
7,375,378
|
-37
|
Source(s): |
Environment Canada, Pollution Data Section. |
|
|