Lead Awareness Training

5 Lead Awareness Lead - What is it? And Where is it? Lead is a naturally occurring, heavy, bluish metal that has been used for centuries in manufactured products. Lead is nearly indestructible and is non-biodegradable. No known technology will destroy or render lead harmless. Lead is mined as ore in many countries throughout the world and refined for use in the following products: • paint • batteries • gasoline • glazing • pottery glaze • solder • water and sewer piping As of 2008, residential paint can only contain a maximum of .009% lead. What is a lead-based paint? The Department of Housing and Urban Development (HUD) and Iowa State University (ISU) defines lead-based paint as any paint or other surface coatings that contain lead equal to or in excess of 0.5% by weight or 1.0 mg/cm² using an XRF direct reading instrument. This includes varnishes and stains. What’s the problem? Disturbing Lead If lead is present on or in a surface being disturbed by sanding, scraping, or welding, persons performing the work, as well as occupants of the surrounding area, may be exposed to lead. Where is it? At ISU, lead-based paint poses the primary risk for lead exposure. Paint preparation (scraping and sanding), renovation and demolition activities can all generate significant personal exposures.