Health Hazards Near Quarries
The Hazards of Dust from a Pit/Quarry Operation ... Health The Hazards of Dust from a Pit/Quarry Operation ... In the light of these known hazards from gravel dust it is essential that evidence is available (perhaps from existing gravel quarries) of the extent to which PM 10 and PM particles of crystalline silica dust can be expected to be found (say over the course of a year) at distances ...