Text For Citation: 01 Item/Group: 003B Hazard:

29 CFR 1910.1000(a)(2): Employee(s) were exposed to an airborne concentration of particulates not otherwise regulated, total dust listed in Table Z-1 in excess of the 8 hour Time Weighted Average concentration of 15 mg/m3: (a) The welder in the welding area was exposed to total particulates not otherwise regulated, total dust at an 8-hour time weighted average of 26.0 mg/m3, approximately 1.7 times the limit of 15.0 mg/m3. This limit is established to prevent decrease in pulmonary function and irritation to the throat and upper respiratory system. The sample was collected on January 25, 2017 during 459 minute sampling period. Exposure calculations include a zero increment for the 21 minutes not sampled. (b) The welder in the welding area was exposed to total particulates not otherwise regulated, total dust at an 8-hour time weighted average of 21.1 mg/m3, approximately 1.4 times the limit of 15.0 mg/m3. This limit is established to prevent decrease in pulmonary function and irritation to the throat and upper respiratory system. The sample was collected on January 25, 2017 during 462 minute sampling period. Exposure calculations include a zero increment for the 18 minutes not sampled.