Table 3. Occupational exposure to respirable dust (RD) using air concentrations of RD

From

Determinants of Respirable Crystalline Silica Exposure among Sand-stone Workers

Kanala Chanvirat, Naesinee Chaiear, Thitiworn Choosong

American Journal of Public Health Research. 2018, 6(2), 44-50 doi:10.12691/ajphr-6-2-4