Worcester State University, Worcester, USA.
Workplace Health Saf. 2012 Oct;60(10):460. doi: 10.1177/216507991206001009.
Workers may be exposed to dust containing high levels of respirable crystalline silica during hydraulic fracturing.
工人在水力压裂过程中可能会接触到含有高浓度可吸入结晶二氧化硅的粉尘。