Mercury Air Releases Trend
This graph shows the trend in the pounds of mercury and mercury compounds released to air by TRI reporting facilities.
From 2007 to 2017:
- Releases of mercury and mercury compounds to air decreased by 68%.
- Electric utilities are driving the decline in mercury air emissions, with an 89% reduction (83,000 pounds).
From 2016 to 2017:
- Air releases of mercury and mercury compounds decreased by 9%.
- The primary metals sector, which includes iron and steel manufacturers and smelting operations, accounted for 34% of the air emissions of mercury and mercury compounds reported to TRI for 2017.
This page was published in March 2019 and uses the 2017 TRI National Analysis dataset made public in TRI Explorer in October 2018.