“The results for 2012 marksix straight years of improving air quality in the harbour area thanks to ourfocused efforts to reduce air pollution caused by goods movement,” the portsaid.

“The reasons for air quality improvements include bigger ships carrying cargomore efficiently, newer ships with cleaner engines, increasing use ofshore power, and a new low-sulfur fuel rule for ships that started inAugust 2012.”

Compared to 2005 emissionslevels, the port said all of the key air pollutants from port-related sourceswere reduced in 2012.