"Percentage change of mercury, lead and cadmium emissions from 1990 level and arsenic emissions from 1993 level, Canada",,,, ,,,, Year,Mercury (percent change from 1990 levels),Lead (percent change from 1990 levels),Cadmium (percent change from 1990 levels),Arsenic (percent change from 1993 levels) 1990,0,0,0,n/a 1991,0,-4,-13,n/a 1992,1,0,-11,n/a 1993,-43,-35,-81,0 1994,-49,17,-7,86 1995,-60,-25,-74,28 1996,-56,-18,-65,103 1997,-63,-30,-45,132 1998,-67,-37,-44,142 1999,-69,-47,-51,152 2000,-70,-49,-54,130 2001,-72,-49,-16,188 2002,-74,-57,-51,128 2003,-75,-64,-62,87 2004,-74,-71,-59,102 2005,-76,-77,-58,13 2006,-79,-74,-50,12 2007,-77,-74,-65,13 2008,-79,-77,-72,2 2009,-83,-79,-74,-10 2010,-84,-82,-80,-32 2011,-88,-86,-90,-48 2012,-89,-88,-88,-48 2013,-88,-90,-90,-48 2014,-89,-89,-91,-32 2015,-90,-86,-91,-35 2016,-90,-86,-91,-40 2017,-90,-84,-92,-50 2018,-90,-86,-92,-46 2019,-91,-88,-92,-64 2020,-91,-89,-95,-64 2021,-90,-91,-95,-38 2022,-91,-88,-95,-70 2023,-90,-91,-95,-78 2024,-91,-90,-94,-71 ,,,, "Note: n/a = not applicable. The indicator reports emissions from human-related activities only for mercury, lead and cadmium and facility-based emissions for arsenic. It does not include emissions from natural sources such as forest fires or volcanoes. Facility-based reporting for arsenic emissions did not begin until 1993.",,,, Source: Environment and Climate Change Canada (2026) Air Pollutant Emissions Inventory (https://www.canada.ca/en/environment-climate-change/services/pollutants/air-emissions-inventory-overview.html) and National Pollutant Release Inventory (https://www.canada.ca/en/services/environment/pollution-waste-management/national-pollutant-release-inventory.html).,,,, Available on the Environmental indicators website (www.canada.ca/environmental-indicators).,,,,