Exposure Level
Measured in milligrams per cubic metre (mg/m3), Exposure Level is the concentration of a hazardous substance to which a worker is exposed during a specified period.
Information & FAQ's
How is Estimated Exposure Level being calculated?
The exposure levels are estimated with a statistical model that was developed from a database of 270 RCS exposure measurements from work sites in British Columbia.
Work Activities & Definitions
Silica Control Team
Work activities in the Mining Silica Control ToolTM are aligned with these definitions.
Why can I only select one Work Area and one Work Activity Duration?
The estimated exposure level will be different for different work areas and work activity durations.
How does work activity duration affect estimated dust exposure level?
The Silica Control ToolTM estimates the average level of RCS exposure over the entire silica process.