The Port of Long Beach, in partnership with the Port of Los Angeles, has released a request for proposals seeking demonstrations of technologies to upgrade tugboats, crew boats, barges and other harbor craft to cleaner engines, the company said in its press release.
Harbor craft are the second-largest source of diesel particulate matter air pollution in San Pedro Bay, comprising 18 percent of the emissions. The vessels also contribute 10 percent of nitrogen oxide and 6 percent of greenhouse gas pollution. Under state regulations, most of the boats have engines meeting Tier 2 emission level standards.
