The City Council says it will provide an additional $30 million dollars for the removal of polychlorinated biphenyls in schools.
The council and the Department of Education have agreed on a plan to speed up the removal of PCBs within the next three years.
Last year, three schools were initially found to have elevated levels of the toxic material.
Further tests found almost 800 schools need lighting fixtures with PCBs replaced.
PCBs were once used as insulation but were banned in the 1970s.