Table 11
Water discharge in manufacturing industries, by type
of final treatment and industry group, 2007
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| Water not treated before discharge | Primary or mechanical | Secondary or biological | Tertiary or advanced | |
|---|---|---|---|---|
| millions of cubic metres | ||||
| Total | 1,357.0 A | 680.9 B | 1,804.4 A | 279.3 A |
| Food | 145.9 D | 62.6 B | x | x |
| Beverage and tobacco | 40.6 D | x | x | 1.2 E |
| Textile mills | x | F | F | x |
| Textile products | x | x | 0.0 | 0.0 |
| Wood | 55.8 C | 0.4 E | F | F |
| Paper | 265.3 B | 43.0 B | 1,559.1 A | 5.5 B |
| Petroleum and coal | x | 221.5 B | x | 18.6 C |
| Chemicals | 252.7 C | 66.5 C | 21.4 D | 6.4 C |
| Plastics and rubber | 17.5 E | x | x | 0.0 |
| Non-metallic minerals | 11.7 E | x | F | F |
| Primary metals | 437.3 B | 251.6 C | x | x |
| Fabricated metals | 20.3 E | F | 0.0 E | F |
| Machinery | x | F | 0.0 E | x |
| Computers and electronics 1 | x | F | x | x |
| Electrical products 1 | x | 0.0 E | x | 0.1 E |
| Transportation equipment | 11.9 C | 3.5 E | F | 6.1 D |
| Miscellaneous | x | F | F | x |
| Other 2 | 18.0 E | F | F | F |
| percent | ||||
| Percentage of total water discharge | 32.9 | 16.5 | 43.8 | 6.8 |
For 2005, computer and electronic product
manufacturing and electrical equipment, appliance and component manufacturing
are included in the other manufacturing industries category. As of 2007,
they appear separately.
Other manufacturing industries combines the
following industry groups 3-digit North American Industry Classification
System (NAICS): clothing manufacturing (315), leather and allied product manufacturing
(316), printing and related support activities (323) and furniture and related
product manufacturing (337). The industry groups included in other manufacturing
industries may vary from year to year.
Note(s):
Figures may not add up to totals due to rounding.
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