TUCSON, AZ (Tucson News Now) - Four workers were taken to a local hospital for treatment after being covered by cement dust when a hopper malfunctioned at a plant on the northwest side.
Two workers with the Staker Parson Cement Plant were covered when the hopper malfunctioned, according to Northwest Fire Department officials. Two more were covered by the dust when they went in to fix the broken valve.
According to NWFD Capt. Adam Goldberg, dry cement dust was dispensed from the hopper and quickly became airborne. The material that was considered caustic and harmful was crushed and powdered limestone, which is a part of the mixture used in the production of cement. The limestone is still caustic and can cause the irritation and caustic burns. According to NWFD the cloud is traveled north from the 5400 block of West Massingale Road.
Goldberg said the four employees were treated and released from the hospital a few hours later.