How is RCS monitoring done on construction sites?

Personal sampling is typically used for RCS monitoring on construction sites. The worker wears a tiny, battery-operated pump that is attached to a sampling head close to their breathing zone, usually on the shoulder.
During the shift, the pump pulls air through a specialized filter that collects dust particles. After that, the filter is transported to a lab for analysis in order to determine its silica content.

This method provides a detailed image of the exposure that employees actually experience while performing real jobs, enabling controls to be evaluated and enhanced as necessary.