PHILADELPHIA - Air quality alerts are in effect for much of the Delaware Valley on Tuesday as wildfire smoke originating more than 2,000 miles away in the western United States and western Canada engulfs nearly two-thirds of the nation.The Delaware Valley Regional Planning Commission and the Pennsylvania Department of Environmental Protection have issued a code orange air quality alert Tuesday for the Philadelphia metro area and the Lehigh Valley/Berks County area, respectively.Additionally, the New Jersey DEP has issued an air quality action day Tuesday for Burlington, Camden, Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and Warren counties.This means air pollution concentrations within our region may become unhealthy for.