Exposure Variablea | Mean | Median | Standard deviation | 25th, 75th %-ile |
---|---|---|---|---|
Multi-day mean EC (background-corrected) concentration (μg/m 3 ) | ||||
 Respirable size fraction | 1.00 | 0.096 | 4.94 | 0.018, 0.33 |
 Inhalable size fraction | 6.22 | 0.24 | 41.2 | 0.027, 1.32 |
Multi-day mean TEM structure count concentration (structures/cm 3 ) | ||||
 All CNT/F-containing structures | 0.128 | 7.29E-3 | 0.469 | 9.02E-4, 8.30E-2 |
 Structures < 10 μm diameter | 0.121 | 6.03E-3 | 0.440 | 3.80E-4, 8.34E-2 |
 Structures <5 μm diameter | 0.0865 | 3.04E-3 | 0.316 | 9.60E-5, 6.52E-2 |
 Structures <2 μm diameter | 0.0443 | 3.08E-4 | 0.201 | 0, 3.33E-3 |
 Structures <1 μm diameter | 0.0398 | 0 | 0.194 | 0, 7.12E-4 |
 Single fiber structures | 0.0324 | 0 | 0.193 | 0, 0 |
Duration worked with CNT/F (years) | 4.07 | 3.66 | 4.01 | 1.05, 5.61 |