Calculate precise exposure concentrations across different work intervals
| Frequency | Substance | Concentration | Duration | Total |
|---|---|---|---|---|
| Interval 1 |
| Total Concentration | ||
|---|---|---|
| Total Working Hours | Hours | |
| Time-Weighted Average |
TWA= (C1T1) + (C2T2) +...+ (CnTn)Total hours worked
Where:
C = Concentration
T = Time duration
n = Number of intervals