Last week, the Baltimore City Council passed a bill that would significantly reduce air pollution from the city’s single largest source of emissions: the BRESCO trash burning incinerator beside Interstate 95.The company that owns the 34-year-old incinerator, Wheelabrator, has warned that the pollution limits could force the shutdown of a facility that burns 700,000 tons of trash a year for Baltimore and surrounding counties and provides steam heat for downtown buildings.This, in turn, could force Baltimore residents to pay millions of dollars more to truck the garbage to landfills. The move may require the expansion of the city’s landfill on Quarantine Road in far south Baltimore, which is nearing capacity.