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Table 2. Similar exposure groups( SEGs) among countertop fabrication workers, including primary tasks and associated exposure considerations.
SEG |
Primary Tasks |
Exposure Considerations |
Automated tool |
|
|
operators |
|
|
Small tool operators
Program and operate CNC routers, water jets, bridge saws, robotic saws, automatic polishers
Use sanders, grinders, polishers, cutting saws
Water delivery systems reduce airborne dust. Operators should remain physically distant from tools
Small tools are used for final polishing / finishing. These are often lower-cost entry tools that lack water controls.
Top: Robotic arm saw jet that allows for simultaneous cutting and loading of stone slabs. Image source: Jenny Houlroyd. Bottom: Automated tool operator using a bridge saw with water delivery. Image source: Jenny Houlroyd.
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Lamination workers |
Bond slabs, attach edges with adhesives; |
Dry processes and adhesive curing create high dust and contaminant exposure. 56 |
Employee using hand tool to polish interior edge of sink. Image source: NIOSH. |