![CDC Silica, Engineering Controls for Silica in ...](/e69yszg/342.jpg)
CDC Silica, Engineering Controls for Silica in ...
Construction workers who perform concrete grinding may breathe dust that contains respirable crystalline silica (RCS). A NIOSH Cdcpdf [1] study found that workers grinding concrete to smooth poured concrete surfaces were exposed to high levels of dust containing RCS, ranging from 35 to 55 times the NIOSH recommended exposure limit (REL). The ...