Percent distribution of occupational injuries and illnesses involving time away from work, by source, 2001 Source of illness or injury Percent Floors, walkways, ground surfaces 17.2 Worker motion or position 16.0 Containers 13.6 Parts and materials 10.6 Vehicles 8.4 Machinery 6.3 Tools, instruments, and equipment 6.3 Health care patient 4.4 Furniture and fixtures 3.5 Chemicals and chemical products 1.6