Table 3.58
Top ten substances released to water, 2007
Archived information
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| Releases | Share of total | |
|---|---|---|
| tonnes | percent | |
| Nitrate (ion in solution at pH >= 6.0) | 56,880.6 | 48.4 |
| Ammonia (total) 1 | 49,281.6 | 42.0 |
| Phosphorus (total) | 6,504.4 | 5.5 |
| Methanol | 1,615.4 | 1.4 |
| Manganese (and its compounds) | 1,410.6 | 1.2 |
| Ethylene glycol | 484.4 | 0.4 |
| Zinc (and its compounds) | 253.1 | 0.2 |
| Chlorine | 204.0 | 0.2 |
| Total Reduced Sulphur (TRS) | 99.2 | 0.1 |
| Copper (and its compounds) | 94.7 | 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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