Nonoccupational exposure to silica dust
Sand quarry, near California. It has been mentioned by Ruble and Goldsmith[] that Goldsmith[] reported particulate matter less than 10 μm (PM10) and silica levels measured at two sites near a sand quarry, near PM10 concentrations for sites were and μg/m 3, and mean silica concentrations were and μg/m 3, respectively from 6–7% silica content in the PM ...