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  1. Symbols
  2. Note to readers
  3. Note of appreciation
  4. Standards of service to the public
  5. Copyright


The following standard symbols are used in Statistics Canada publications:

not available for any reference period
not available for a specific reference period
not applicable
true zero or a value rounded to zero
value rounded to 0 (zero) where there is a meaningful distinction between true zero and the value that was rounded
suppressed to meet the confidentiality requirements of the Statistics Act
use with caution
too unreliable to be published
significantly different from reference category (p < 0.05)

Note to readers

Corrections have been made to this product.

The publication has been reloaded on September 14, 2012

Please take note of the following changes:

The 2009 data on industrial wastewater have been corrected in the following sections:
Canada's waste generation – the big picture
Industrial wastewater

The following chart and tables have been changed:
Chart 2.2 – "Major wastewater discharges, 2009"
Table 4.1 – "Wastewater discharge from manufacturing, mineral extraction and thermal-electric power industries, 2009"
Table 4.2 – "Water costs for manufacturing, mineral extraction and thermal-electric power industries, 2009"

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For more information please contact us.

Note of appreciation

Canada owes the success of its statistical system to a long-standing partnership between Statistics Canada, the citizens of Canada, its businesses, governments and other institutions. Accurate and timely statistical information could not be produced without their continued cooperation and goodwill.

Standards of service to the public

Statistics Canada is committed to serving its clients in a prompt, reliable and courteous manner. To this end, Statistics Canada has developed standards of service that its employees observe.


Published by authority of the Minister responsible for Statistics Canada

© Minister of Industry, 2012

All rights reserved. Use of this publication is governed by the Statistics Canada Open License Agreement:

September 2012

Catalogue no. 16-201-X

ISSN 1923-6743

Catalogue no. 16-201-X

ISSN 1923-6751

Frequency: Annual


Environment Accounts and Statistics Division

Date modified: