Thirteen employees were hospitalized and another 23 workers were treated at the scene of the facility at West Ohio and North Dearborn streets.It’s hot in this building. Extremely hot. No air conditioning,” said postal worker Kenneth Norman early Saturday.
An air conditioner had malfunctioned, a USPS spokesman said. Employees said temperatures were nearly 100 degrees since mid-week.
On Saturday, employees were working at the facility since 5 a.m. A supervisor who was throwing up was among those who were treated. A CTA cooling bus was also sent to the scene.