Table 3.11
Top ten substances released and disposed of to land
according to the National Pollutant Release Inventory, 2009
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| Releases to land Note 1 | On-site disposal Note 2 | Off-site disposal Note 3 | Total | Share of total | |
|---|---|---|---|---|---|
| tonnes | percent | ||||
| Hydrogen sulphide | 0 | 186,832 | 452,593 | 639,425 | 48.9 |
| Manganese (and its compounds) | 230 | 192,873 | 5,018 | 198,121 | 15.1 |
| Phosphorus (total) | 591 | 97,273 | 10,899 | 108,763 | 8.3 |
| Zinc (and its compounds) | 363 | 65,689 | 8,645 | 74,697 | 5.7 |
| Copper (and its compounds) | 316 | 63,173 | 2,499 | 65,988 | 5.0 |
| Nickel (and its compounds) | 0 | 36,991 | 1,485 | 38,476 | 2.9 |
| Lead (and its compounds) | 164 | 31,028 | 2,878 | 34,070 | 2.6 |
| Asbestos (friable form) | 390 | 18,251 | 5,466 | 24,107 | 1.8 |
| Methanol | 32 | 13,376 | 6,082 | 19,489 | 1.5 |
| Arsenic (and its compounds) | 1 | 16,760 | 287 | 17,048 | 1.3 |
Includes leaks, spills and other releases.
Includes the following on-site disposals: containment
(landfill), land treatment (farm), underground injection, tailings management
and waste rock management.
Includes the following off-site disposals:
containment (landfill), land treatment (farm), underground injection, containment
(other storage), tailings management and waste rock management.
Source(s):
Environment Canada, Pollutant Inventories and Reporting Division, 2011,
National Pollutant Release Inventory (NPRI) Downloadable Datasets, www.ec.gc.ca/inrp-npri/default.asp?lang=en&n=0EC58C98- (accessed
February 14, 2012).
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