Concentrations (μg/m3) of Pt in PM10 airborne samples, total and soluble Pt in airborne samples, and whole total airborne matter collected with personal samplers
| Site | Type of process | Environmental samplers | Personal samplers | |||
|---|---|---|---|---|---|---|
| PM10 airborne | Whole airborne samples | Whole airborne | ||||
| Total Pt | Soluble Pt | Soluble/total (%) | ||||
| SSD, metal dissolution department; CD, coating dept; PCD, process catalysis dept; RS, recycling service; RD, refinery dept; AL, analytical laboratory; AS, remaining areas; EC, external control. | ||||||
| SSD1 | Dissolution and hydrolysis | 0.01 | – | – | – | 0.32 |
| SSD2 | Dissolution | 0.02 | 0.06 | 0.02 | 34.1 | 0.47 |
| SSD2 | Hydrolysis | 0.04 | 0.11 | 0.02 | 15.1 | 0.43 |
| Mean | 0.02 | 0.08 | 0.02 | 24.6 | 0.41 | |
| CD | Washcoat 1 | 1.70 | 0.60 | 0.21 | 35.0 | 2.97 |
| CD | Washcoat 2 | 0.65 | – | – | – | 0.97 |
| CD | Washcoat 3 | – | – | – | – | 1.26 |
| CD | Washcoat 4 | – | – | – | – | 1.70 |
| CD | Ovens 1 | 0.79 | 0.96 | 0.29 | 30.2 | – |
| CD | Ovens 2 | 0.87 | – | – | – | – |
| CD | Mills | 1.25 | – | – | – | 2.55 |
| CD | Packing | 1.84 | – | – | – | – |
| CD | Production 1 | 2.40 | 6.06 | 1.51 | 24.9 | 4.83 |
| CD | Production 2 | – | – | – | – | 4.46 |
| CD | Catalyst cleaning | 0.136 | – | – | – | – |
| Mean | 1.21 | 2.54 | 0.67 | 30.1 | 2.70 | |
| PCD | Carbon coating 1 | 0.24 | 0.74 | 0.04 | 6.00 | 0.13 |
| PCD | Carbon coating 2 | 0.13 | – | – | – | 0.06 |
| PCD | Carbon coating 3 | – | – | – | – | 0.02 |
| PCD | Packing 1 | 0.07 | 0.11 | 0.01 | 10.2 | 0.01 |
| PCD | Packing 2 | 0.27 | – | – | – | 0.01 |
| Mean | 0.18 | 0.42 | 0.03 | 8.00 | 0.05 | |
| RS | Ovens | 0.18 | 0.42 | 0.004 | 0.80 | 0.78 |
| RS | Sampling | 0.30 | 0.26 | 0.01 | 4.50 | 0.58 |
| Mean | 0.24 | 0.34 | 0.08 | 2.65 | 0.68 | |
| RD | Ash leaching 1 | 0.03 | – | – | – | – |
| RD | Ash leaching 2 | 0.01 | – | – | – | 0.06 |
| Mean | 0.02 | – | – | – | 0.06 | |
| AL | Quality control | – | 0.02 | 0.01 | 42.6 | – |
| AS | Administration 1 | 0.01 | 0.01 | 0.002 | 17.9 | 0.01 |
| AS | Administration 2 | 0.01 | – | – | – | – |
| Mean | 0.01 | 0.01 | 0.002 | 17.9 | 0.01 | |
| EC | Non-exposed area | <0.00002 | – | – | – | – |