THE Port of Los Angeles says it has met the goals laid out in its 2023 Clean Air Action Plan
ahead of schedule and "has maintained or exceeded the dramatic clean air
progress it has made over the last 12 years."
The port said that emissions of nitrogen
oxides, a key component of smog, were down 60 per cent compared to 2005
emissions levels. Diesel particulate matter (DPM) remains down 87 per
cent and sulphur oxides remain down 98 per cent, reported American
"To reduce emissions while also significantly increasing cargo volumes
the port had to reduce the average amount of emissions it generates to
move each container," the port said.
It added that it lowered the "average amount of emissions the port
generates to move each container of cargo for all eight pollutants
tracked by the port's emissions inventory, including greenhouse gases
(GHG), which were down 30 per cent per container on average since 2005."
The port said larger containerships played a key role in preserving the
port's clean air gains. Containership calls were down 22 per cent, while
the average number of containers per vessel increased 60 per cent since
2005. Fewer ship calls also led to fewer trips by harbour craft.
The port noted the largest ships tend to be newbuilds with cleaner
engines. In addition, the port has required more ships to "cold iron" -
turn off their engines and plug into the onshore electric grid when
Under rules from the UN's International Maritime Organisation that
established emissions control areas, since 2017 ships within 200
nautical miles of the US coastline must burn cleaner fuel with a maximum
sulphur content of 0.1 per cent, and more ships are reducing fuel
consumption by slowing down within 40 nautical miles of the port.
The port said turnover of older trucks and upgrades to cargo-handling
equipment also have "helped hold the line on emissions". Half of the
17,000 drayage trucks calling at the port in 2017 have 2010 model year
or newer engines.