160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! State and regional officials announced Friday an agreement to reduce air pollution from trucks, trains, construction equipment and ports. The state Air Resources Board and the South Coast Air Quality Management District agreed to reduce levels of nitrogen oxides by 76 tons a day, according to a statement from the two agencies. Nitrogen oxides are blamed for contributing to particulate pollution. The agencies said the reduction will be achieved by “stringent mandatory regulations as well as incentive programs.” These will involve heavy-duty truck fleets, locomotives, construction and other off-road equipment, and commercial charbroilers and wood-burning. The cuts will help the area meet a federal 2015 deadline to clean air in the AQMD region, which covers major portions of Los Angeles, San Bernardino and Riverside counties, and all of Orange County. The area has an overall target of reducing emissions from 1,000 tons a day currently to 454 tons a day in 2014. The cuts will come from a mixture of incentive programs and new rules. “This agreement signals the dawn of a new day in cooperation between state and local air quality agencies,” Mary Nichols, chair of the Air Resources Board, said in the statement. Southern California has some of the country’s worst particulate air pollution. The pollution is made up of microscopic particles that can enter the body and cause respiratory diseases and other problems.