OSHA Compliance Issues

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ACKNOWLEDGMENTS

The authors thank WISHA staff members Nicole Irby for her skillful editing, Phil Peters for searching laboratory records, and Mark Soltow for assistance in gathering data. The authors also thank WISHA safety inspectors Rick White and Robert Tugwell for their referral of potential silica hazards in construction.

The opinions and findings expressed in this article are those of the authors and do not necessarily reflect the views of the State of Washington OSHA program.

Notes

^A HP = Hardiplank; WB = WeatherBoards.

^A Sample times varied between 316 to 459 min. Dose extrapolated to 8-hour shift; TWA = time-weighted average, WISHA exposure limit: 50% dose or 85 dBA as an 8-hour TWA.