Testing Status of Agents at NTP
Asphalt Table A-5.
Table A-5. Exposure concentrations measured during manufacturing of roofing products
Exposure concentration (mg/m3) | ||||||||
---|---|---|---|---|---|---|---|---|
Sample | Mean | |||||||
Occupation | Source of exposure | Number | Type | Range | Arithmetic | Geometric | Reference | |
Saturator operator | Production of asphalt shingles and rolled roofing materials | 3 |
Total particulates ~7-hr TWA | 2.2-7.34 | 5.5766 | 4.878 | Apol & Okawa [1977] | |
2 | Cyclohexane solubles
~7-hr TWA | 0.18-2.55 | 1.68 | 1.437 | ||||
Coater operator | 2 |
Total particulates ~7-hr TWA | 13.77-14.57 | 14.17 | 14.164 | |||
2 | Cyclohexane solubles ~7-hr TWA | 0.87-6.84 | 3.855 | 2.440 | ||||
Coater trainee | 2 |
Total particulates ~6.5-hr TWA | 11.11-14.67 | 12.89 | 12.766 | |||
2 |
Cyclohexane solubles ~6.5-hr TWA | 0.30-2.33 | 1.315 | 0.836 | ||||
Press operator | 2 | Total particulates ~7-hr TWA | 6.08-31.90 | 18.99 | 13.929 | |||
2 |
Cyclohexane solubles ~7-hr TWA | 1.37-1.47 | 1.42 | 1.419 | ||||
Seal down operator | 2 | Total particulates ~7-hr TWA | 0.99-1.43 | 1.21 | 1.1898 | |||
2 |
Cyclohexane solubles ~7-hr TWA | 0.43-1.18 | 0.805 | 0.712 | ||||
Foreman | 2 | Total particulates ~7-hr TWA | 5.25-6.33 | 5.79 | 5.766 | |||
2 | Cyclohexane solubles ~7-hr TWA | 0.47-0.53 | 0.5 | 0.4991 | ||||
Hallmark operation worker | 7 |
Total particulates ~7-hr TWA | 0.96-2.16 | 1.596 | 1.556 | |||
7 | Cyclohexane solubles ~7-hr TWA | 0.23-0.76 | 0.35857 | 0.0851 | ||||
Hallmark worker | Production of asphalt shingles | 8 | Total particulates ~7-hr TWA | 0.38-5.18 | 1.425 | 0.996 | Okawa & Apol [1977] | |
8 |
Cyclohexane solubles ~7-hr TWA | 0.24-3.26 | 1.051 | 0.760 | ||||
Saturator/Coater | 6 | Total particulates ~7-hr TWA | 5.30-29.00 | 11.50 | 8.029 | |||
6 |
Cyclohexane solubles ~7-hr TWA | 0.66-1.25 | 0.907 | 0.8799 | ||||
Saturator operator | Production of asphalt shingles and rolled roofing materials | 1 |
Total
particulates ~5.5-hr TWA | --- | 2.39 | 2.39 | Apol & Okawa [1978] | |
1 | Cyclohexane solubles ~5.5-hr TWA | --- | 0.76 | 0.76 | ||||
Coater | 2 | Total particulates ~6.5-hr TWA | 11.86-15.61 | 13.735 | 13.606 | |||
2 |
Cyclohexane solubles ~6.5-hr TWA | 0.21-1.06 | 0.635 | 0.472 | ||||
Wrapping machine operator | 1 | Total particulates ~6.5-hr TWA | --- | 1.40 | 1.40 | |||
1 |
Cyclohexane solubles ~6.5-hr TWA | --- | 0.77 | 0.77 | ||||
Lead man | 1 | Total particulates ~6-hr TWA | --- | 5.29 | 5.29 | |||
1 | Cyclohexane solubles ~6-hr TWA | --- | 0.76 | 0.76 | ||||
Presser | 2 | Total particulates
~6-hr TWA | 8.27-21.97 | 15.12 | 13.480 | |||
2 |
Cyclohexane solubles
~6-hr TWA | 0.30-0.54 | 0.42 | 0.402 | ||||
Coater | Production of asphalt
shingles and rolled roofing materials | 2 | Total particulates
~7-hr TWA | 4.2-5.1 | 4.65 | 4.628 | Okawa & Apol [1978a] | |
2 |
Cyclohexane solubles
~7-hr TWA | 3.3-3.9 | 3.6 | 3.586 | ||||
Cooling section operator | 2 |
Total particulates ~7-hr TWA | 0.3-1.0 | 0.65 | 0.548 | |||
2 | Cyclohexane solubles ~7-hr TWA | 0.7-1.6 | 1.15 | 1.058 | ||||
Machine tender | 2 | Total particulates ~7-hr TGWA | 0.4-2.8 | 1.6 | 1.058 | |||
2 | Cyclohexane solubles ~7-hr TWA | 0.6-1.8 | 1.2 | 1.039 | ||||
Saturator operator | Production of asphalt shingles and rolled roofing materials | 1 | Total particulates ~6.5-hr TWA | --- | 1.0 | 1.0 | Okawa & Apol [1978b] | |
1 | Cyclohexane solubles | --- | 2.10 | 2.10 |
~6.5-hr TWA | |||
Coaterman | 1 | Total particulates | --- | 2.10 | 2.10 |
~6.5-hr TWA | ||
1 | Cyclohexane solubles | --- | 0.22 | 0.22 |
~6.5-hr TWA | |||
Slateman | 1 | Total particulates | --- | 3.35 | 3.35 |
~6.5-hr TWA | ||
1 | Cyclohexane solubles | --- | 0.21 | 0.21 | ||||
Paper production workers (smokers) | Asphalted paper production | 4 | Total PAHs | 0.00479- 0.03579 | 0.013545 | 0.009 | Pozzoli et al. [1985] | |
Paper production workers (nonsmokeres) | 2 | Total PAHs | 0.00343- 0.3108 | 0.017255 | 0.010 | |||
Loader/asphalt handler |
Roofing manufacturing (temperature of product at fume source from 300-710F) | 6 | Total particulates 6-hr TWA | 0.068-0.94 | 0.66 | 0.51 | AI [1991] | |
6 | Benzene solubles 6-hr TWA | 0.041-0.71 | 0.41 | 0.31 | ||||
Slate blend operator | 4 | Total particulates 6-hr TWA | 1.1-1.3 | 5.6 | 3.9 | |||
4 | Benzene solubles 6-hr TWA | 0.013-0.94 | 0.27 | 0.077 | ||||
Coater operator | 8 | Total particulates 6-hr TWA | 0.42-2.5 | 1.3 | 1.0 | |||
8 | Benzene solubles 6-hr TWA | 0.049-1.6 | 0.37 | 0.2 | ||||
Machine operator | Roofing
manufacturing (temperature of product at fume sosurce from 300-710F) | 8 | Total particulates 6-hr TWA | 0.8-4.4 | 1.9 | 1.6 | ||
8 | Benzene solubles 6-hr TWA | <0.071-3.6 | 1.5 | 0.55 | ||||
Press operator/ Cooling operator | 7 | Total particulates 6-hr TWA | 0.55-11 | 4.8 | 2.6 | |||
7 | Benzene solubles | <0.085-3.7 | 1.0 | 0.32 | ||||
Supervisor | 1 |
Total particulates 6-hr TWA | --- | 1.4 | 1.4 | |||
1 |
Benzene solubles 6-hr TWA | --- | 0.32 | 0.32 |
* Concentrations are reported as milligrams of asphalt fumes per cubic meter of air (mg/m3) in personal samples.
Web page last updated on August 15, 2005