A programme has been initiated to facilitate stricter control over anode effects
and thereby reduce PFC emissions.
In recent years, this has included introducing new preventative maintenance procedures; alternative anode sizes; and new controls to anticipate and prevent anode effects
The reduced use of fossil fuel has obvious resource and environmental conservation benefits; while significantly fewer anode effects
compared to lower amperage technologies also contribute to lower perfluorocarbon emissions.
Other programs include, introducing low-polycyclic aromatic hydrocarbons (PAH) pitch in its older smelters, developing process improvements that reduce anode effects
, fuel switching to use natural gas in fabrication facilities, and improving product design and promoting increased aluminum recycling.
Perfluorocarbon (PFC) gases are greenhouse gases generated during anode effects
in the potrooms.