The city will not comment on the extent of the illnesses for the workers.
The landfill has been the focus of odor complaints by residents in Jefferson Twp., Kettering, Moraine and West Carrollton. Last week the facility was sued by a Moraine resident in a class-action claim that it was negligent in containing its emissions.
Since a late October order by the city of Dayton, the landfill has transported all decomposing waste off site for wastewater treatment, according to its owner, Waste Management.