Release of Toxic Substances to Water Data

• Mercury released to water, Canada, 2003 to 2010
• Mercury released to water by source, Canada, 2010
• Mercury released to water by province and territory, Canada, 2010
• Lead released to water, Canada, 2003 to 2010
• Lead released to water by source, Canada, 2010
• Lead released to water by province and territory, Canada, 2010
• Cadmium released to water, Canada, 2003 to 2010
• Cadmium released to water by source, Canada, 2010
• Cadmium released to water by province and territory, Canada, 2010

 

Mercury release to water, Canada, 2003 to 2010

Year	Mercury (annual national amount released to water in kilograms)
2003	382
2004	338
2005	533
2006	339
2007	254
2008	212
2009	345
2010	269

Note: The indicator includes only the releases from facilities that reported to the National Pollutant Release Inventory (NPRI).

 

Mercury release to water by source, Canada, 2010

Source	Mercury (kilograms)	Percent of national amount released
Water, Sewage and Other Systems	138	51
Pulp, Paper and Paperboard Mills	80	30
Non-Ferrous (exc. Al) Production and Processing	24	9
Other Sources	7	3
Electricity Generation, Transmission and Distribution	7	3
Metal Ore Mining	6	2
Iron and Steel Mills and Ferro-Alloy Manufacturing	4	2
Foundries	2	1
Petroleum and Coal Products Manufacturing	2	1

Note: The indicator includes only the releases reported to the National Pollutant Release Inventory (NPRI) from facilities that are required to report based on the NPRI reporting criteria for mercury to water. Source categories follow the North American Industry Classification System (NAICS), except "Other Sources", which represents a group of sources for which releases are not individually mentioned in this chart.

 

Mercury release to water by province and territory, Canada, 2010

Province or Territory	Mercury (kilograms)	Percent of national amount released
Alberta	92	34
Ontario	85	32
British Columbia	52	19
Quebec	34	13
New Brunswick	4	2
Manitoba	1	0.3
Nova Scotia	0.2	0.1
Saskatchewan	0.2	0.1
Newfoundland and Labrador	0	0
Yukon	0	0
Prince Edward Island	0	0
Nunavut	0	0
Northwest Territories	0	0

Note: The indicator includes only the releases reported to the National Pollutant Release Inventory (NPRI) from facilities that are required to report based on the NPRI reporting criteria for Hg to water. No facilities in Prince Edward Island, Yukon Territory, Newfoundland and Labrador, Northwest Territories or Nunavut reported releases of mercury to the NPRI for 2010.

 

Lead release to water, Canada, 2003 to 2010

Year	Lead (annual national amount released to water in kilograms)
2003	24 339
2004	20 852
2005	21 269
2006	19 139
2007	14 256
2008	20 945
2009	16 194
2010	18 886

Note: The indicator includes releases only from the facilities that reported to the National Pollutant Release Inventory (NPRI).

 

Lead release to water by source, Canada, 2010

Source	Lead (kilograms)	Percent of national amount released
Water, Sewage and Other Systems	11 973	63
Pulp, Paper and Paperboard Mills	2 117	11
Non-Ferrous (exc. Al) Production and Processing	1 552	8
Iron and Steel Mills and Ferro-Alloy Manufacturing	1 443	8
Metal Ore Mining	1 304	7
Other Sources	170	1
Petroleum and Coal Products Manufacturing	161	1
Foundries	148	1
Electricity Generation, Transmission and Distribution	18	0

Note: The indicator is calculated using data from the National Pollutant Release Inventory (NPRI) from facilities that are required to report based on the NPRI reporting criteria for Pb to water. Source categories follow the North American Industry Classification System (NAICS) except "Other Sources", which represents a group of sources for which releases are not individually mentioned in this chart.

 

Lead release to water by province and territory, Canada, 2010

Province or Territory	Lead (kilograms)	Percent of national amount released
Ontario	9 901	52
British Columbia	3 543	19
Quebec	3 385	18
Alberta	774	4
Newfoundland and Labrador	503	3
New Brunswick	484	3
Manitoba	227	1
Saskatchewan	43	0.2
Nunavut	15	0.1
Nova Scotia	11	0.1
Northwest Territories	1	0
Prince Edward Island	0	0
Yukon	0	0

Note: The indicator includes only the releases reported to the National Pollutant Release Inventory (NPRI) from facilities that are required to report based on the NPRI reporting criteria for lead to water. No facilities in Prince Edward Island or Yukon Territory reported releases of lead to the NPRI in 2010.

 

Cadmium release to water, Canada, 2003 to 2010

Year	Cadmium (annual national amount released to water in kilograms)
2003	4 945
2004	4 645
2005	3 408
2006	3 747
2007	3 758
2008	2 542
2009	3 212
2010	2 670

Note: The indicator includes only the releases from facilities that reported to the National Pollutant Release Inventory (NPRI).

 

Cadmium release to water by source, Canada, 2010

Source	Cadmium (kilograms)	Percent of national amount released
Water, Sewage and Other Systems	1 213	45
Pulp, Paper and Paperboard Mills	705	26
Non-Ferrous (exc. Al) Production and Processing	321	12
Foundries	190	7
Metal Ore Mining	85	3
Iron and Steel Mills and Ferro-Alloy Manufacturing	75	3
Petroleum and Coal Products Manufacturing	59	2
Other Sources	14	1
Electricity Generation, Transmission and Distribution	9	0

Note: The indicator includes only the releases reported to the National Pollutant Release Inventory (NPRI) from facilities that are required to report based on the NPRI reporting criteria for Cd to water. Source categories follow the North American Industry Classification System (NAICS), except "Other Sources", which represents a group of sources for which releases are not individually mentioned in this chart.

 

Cadmium release to water by province and territory, Canada, 2010

Province or Territory	Cadmium (kilograms)	Percent of national amount released
Ontario	831	31
British Columbia	730	27
Quebec	704	26
Alberta	232	9
New Brunswick	137	5
Manitoba	18	1
Nova Scotia	7	0.3
Newfoundland and Labrador	6	0.2
Saskatchewan	5	0.2
Nunavut	1	0
Northwest Territories	0	0
Prince Edward Island	0	0
Yukon	0	0

Note: The indicator includes only the releases reported to the National Pollutant Release Inventory (NPRI) from facilities that are required to report based on the NPRI reporting criteria for cadmium to water. No facilities in Prince Edward Island, the Northwest Territories, or Yukon Territory reported releases of Cd to the NPRI in 2010.