History of reporting requirements: National Pollutant Release Inventory
This document outlines the changes that have been made to the National Pollutant Release Inventory (NPRI) program since its inception in 1993, as an outcome of the NPRI Consultations process and Departmental priorities. Visit the Historical Proposals and Consultations or the Current and Recent Proposals and Consultations pages for additional information or supporting documents related to the changes listed below.
Changes to the NPRI substance list have included the addition, modification and removal of substances, as well as changes in the thresholds at which they must be reported. Changes have also been made to various program definitions, technical interpretations, sectoral reporting exemptions, and other reporting criteria. The impact of these changes should be considered when conducting analysis of historical trends, to avoid confusion between changes in reported values due to new reporting requirements, versus actual changes in releases of pollutants to the environment.
A separate document that provides all changes made specifically to the NPRI Substance List, broken down by additions, deletions, modifications to substances, and threshold changes, is also available.
2017 | 2016 | ||||
2015 | 2014 | 2013 | 2012 | 2011 | 2010 |
2009 | 2008 | 2007 | 2006 | 2005 | 2004 |
2003 | 2002 | 2001 | 2000 | 1999 | 1998 |
1997 | 1996 | 1995 | 1994 |
Reporting Year | Modification |
---|---|
2017 | No changes |
2016 | Modifications to reporting thresholds:
Deletion from the substance list of: Twenty-one substances have been removed from the Part 1, Group A list:
Changes to Reporting Requirements:
|
2015 | No changes |
2014 | Addition to the substance list of:
Deletion from the substance list of:
Modifications to reporting thresholds:
Changes to Reporting Requirements:
Clarification of Reporting Requirements:
|
2013 | No changes |
2012 | No changes |
2011 | Modifications to Reporting Thresholds:
|
2010 | Modification to Existing Substance:
Removal from the Substances List of:
Changes to Reporting Requirements:
|
2009 | Reporting Criteria Change:
|
2008 | Reporting Criteria Change:
|
2007 | Addition to the Substances List of:
Modifications to Existing Substances:
Exemption Changes:
Changes to Reporting Requirements:
Reporting Change:
|
2006 | Addition to the Substances List of:
Exemption Change:
Definition Changes:
Reporting Changes:
|
2005 | No changes |
2004 | Reporting Change:
Definition Change:
|
2003 | Addition to the Substances List of:
Modifications to Existing Substances:
Exemption Change:
Facility Information:
Definition Change:
Basis of Estimate Codes:
|
2002 | Addition to the Substances List: Modifications to Existing Substances:
Modifications to Reporting Thresholds:
Additional Exemptions:
Pollution Prevention (P2):
Administrative Changes:
Definition Changes:
Reporting to Other Inventories:
|
2001 | Addition to the Substances List of:
Modifications to Existing Substances:
Removal from the Substances List of:
New Groupings for Releases and Transfers: The following groupings were used to summarize information collected through the NPRI beginning with the 2001 reporting year:
Retaining Copies of Information:
Reporting to the Ontario Ministry of Environment (MOE):
|
2000 | Addition to the Substances List of:
Modifications to Reporting Thresholds: The reporting thresholds were modified for many substances from the original 10-tonne and 1% by weight concentration thresholds:
Exemptions:
|
1999 | Addition to the Substances List of: Modifications to Existing Substances:
Removal from the Substances List of:
Reporting Change:
|
1998 | Changes to Reporting Recycling Activities:
Changes to Reporting Details:
Administrative Changes:
|
1997 | Reporting Change:
|
1996 | Modifications to Existing Substances:
|
1995 | Modifications to Existing Substances:
Reporting Criteria Changes:
|
1994 | Addition to the Substances List of:
Removal from the Substances List of:
Changes to the Reporting Form:
|
Notes:
(1) Pits and quarries, where annual production is 500 000 tonnes or more, are required to report to the NPRI - regardless of the number of hours worked by employees - provided that they meet the "manufacture, process or other use or release thresholds".
(2) Emissions of total particulate matter, PM10 and PM2.5 from road dust are required to be included in threshold calculations for facilities where on-site annual vehicle travel on unpaved roads is over 10 000 kilometres.
(3) Previously, 17 dioxin and furan congeners were required to be reported as a group, in grams of toxic equivalents (TEQ).
(4) Previously, if the incidental manufacture and release, disposal or transfer for recycling of all Polycyclic Aromatic Hydrocarbons (PAHs) totalled at least 50 kg, all individual PAHs were required to be reported, regardless of their quantities.
(5) Reporting of NPRI substances is now required from portable facilities, which means portable polychlorinated biphenyls (PCB) destruction equipment, portable asphalt plants, and portable concrete batching plants.
(6) "Other use" means, in respect of a substance listed in Schedule 1 of the Canada Gazette notice, any use, disposal or release of that substance which is not included in the definitions of "manufacture" or "process".
(7) "Pit" means an excavation that is open to the air and that is operated for the purpose of extracting sand, clay, marl, earth, shale, gravel, stone or other rock but not coal, a coal bearing substance, oil sands, or oil sands bearing substance or an ammonite shell and includes any associated infrastructure, but does not include a quarry. "Quarry" means an excavation that is open to the air and that is operated for the purpose of working, recovering and extracting stone, limestone, sandstone, dolostone, marble, granite, construction materials and any mineral other than coal, a coal bearing substance, oil sands, or oils sands bearing substance or an ammonite shell and includes any associated infrastructure but does not include a pit.
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