Particulate emissions

Particulate emissions remained generally unchanged in prebake plant pot rooms in 2013. Emissions measured at the scrubbers of the Deschambault Smelter were higher, in total 0.70 kg/t Al in 2013 compared to 0.56 kg/t Al in 2012, while, at the Bécancour Smelter, an employee awareness program and the installation of new pot hoods delivered expected results, with a reduction of particulate emissions measured at the roof vents, for a total of 1.75 kg/t Al in 2013, compared to 2.03 kg/t Al in 2012.


In 2013, better operating procedures resulted in a decrease in particulate emissions at the Söderberg plant.