Health hazard evaluation report: HETA-91-023-2096, Tully Sculpting, Niwot, Colorado.
NIOSH 1991 Feb; :1-10
In response to a request from a sculptor regarding the possible hazards of exposure to silica (7631869) during stone sculpting, a hazard evaluation was undertaken at his studio. The artist was primarily engaged in sculpturing fountains made from granite. Generally the work was done outside on the lawn either at the sculptor's house or at a rented location depending on the size of the stones to be worked. Air samples were collected while as many stone working tools as possible were used. Sound levels were also determined. The total dust samples ranged from 0.2 to 1.2mg/m3 while the respirable dust levels ranged from less than 0.1 to nondetectable to 0.6mg/m3. No measurable levels were noted of respirable quartz, or total or respirable cristobalite (14464461). The highest exposure levels occurred during grinding of stone surfaces with no engineering controls. The short duration of the exposures did not result in any exposures over the time weighted average standards, but could have if the duration lasted 1.5 hours. Noise levels averaged 102 to 104 decibels-A when the stone saw and grinder were in operation. The worker had appropriate hearing protection.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-91-023-2096; Hazard-Unconfirmed; Region-8; Noise-exposure; Dust-exposure; Silica-dusts; Grinding-equipment; Abrasive-grinding; Stone-processing; Sculptors; Artists;
Author Keywords: Cut Stone and Stone Products; cristobalite; crystalline silica; noise; quartz; total dust
7631-86-9; 14808-60-7; 14464-46-1
Hazard Evaluation and Technical Assistance; Field Studies
NTIS Accession No.
National Institute for Occupational Safety and Health