Los Angeles Port Sees Air Pollution Levels Dip

Harbor officials say efforts to reduce air pollution at the Port of Los Angeles are working.

Authorities on Monday say diesel particulate levels dropped 7 percent last year compared to 2012 – an 80 percent reduction since 2005. Nitrogen oxide levels also dipped 7 percent _ a 57-percent reduction from 2005 _ and sulfur oxides fell 8 percent – down 90 percent in eight years.

City News Service says harbor officials credit the use of cleaner-burning trucks at the port and speed restrictions on cargo ships to reduce smog from their engines.