Table 3.45
Top ten substances released to air, 2007
Archived information
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| Releases | Share of total | |
|---|---|---|
| tonnes | percent | |
| Sulphur dioxide | 1,724,497.6 | 41.7 |
| Carbon monoxide | 999,918.4 | 24.2 |
| Oxides of nitrogen (expressed as NO2) | 830,996.2 | 20.1 |
| Volatile organic compounds (VOCs) | 264,704.7 | 6.4 |
| Total particulate matter (TPM) | 204,399.6 | 4.9 |
| Ammonia (total) 1 | 22,383.9 | 0.5 |
| Methanol | 15,150.2 | 0.4 |
| Hydrochloric acid | 8,424.4 | 0.2 |
| Sulphuric acid | 6,902.9 | 0.2 |
| Total Reduced Sulphur (TRS) | 5,557.1 | 0.1 |
Refers to the total of both ammonia (NH
3) and ammonium ion (NH4+) in solution.
Source(s):
Environment Canada, Pollution Data Branch, 2008, National
Pollutant Release Inventory Databases, www.ec.gc.ca/pdb/npri/npri_prev_dat_e.cfm (accessed February 2, 2009).
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