The Port of Los Angeles has reduced its carbon emissions by one-third since 2005, according to new figures.

The figures say diesel particulate matter has fallen by 31% over the past four years.

During the three-year reporting period since the 2005 San Pedro Bay Ports Clean Air Action Plan (Caap), the port’s overall emissions have declined by nearly 27%, the report said.

The CAAP committed the ports of Los Angeles and Long Beach to reduce pollution by at least 45% within five years.

From 2007 to 2008, there was an average 14% decrease in all primary pollutants. Port-related operations accounted for 7% of DPM emissions in the South Coast Air Basin in 2008, a 2% reduction from 2007.

Emissions reduced per TEU handled between 2005 and 2008 improved between 23% and 35% among primary pollutants, the port said.