Job exposure matrix for n-Nitrosamines sum score (μg/m3)
| Year | Crude materials and mixing | Preprocessing and assembly | Curing/Vulcanising | Finishing, assembly and miscellaneous | ||||
| Tyres | GRG | Tyres | GRG | Tyres | GRG | Tyres | GRG | |
| 1915 | 1.91 | 2.10 | 394.62 | 751.30 | 1291.00 | 1291.00 | 0.20 | 0.19 |
| 1920 | 1.80 | 1.97 | 283.15 | 532.20 | 1291.00 | 1291.00 | 0.22 | 0.21 |
| 1925 | 1.71 | 1.85 | 203.16 | 377.00 | 1291.00 | 1291.00 | 0.24 | 0.24 |
| 1930 | 1.62 | 1.73 | 145.77 | 267.10 | 1291.00 | 1291.00 | 0.26 | 0.26 |
| 1935 | 1.53 | 1.62 | 104.59 | 189.20 | 1291.00 | 1291.00 | 0.29 | 0.29 |
| 1940 | 1.45 | 1.52 | 75.05 | 134.10 | 1291.00 | 1291.00 | 0.32 | 0.31 |
| 1945 | 1.37 | 1.43 | 53.85 | 95.00 | 1291.00 | 1291.00 | 0.35 | 0.35 |
| 1950 | 1.30 | 1.34 | 38.64 | 67.30 | 1291.00 | 1291.00 | 0.39 | 0.38 |
| 1955 | 1.23 | 1.25 | 27.72 | 47.70 | 1291.00 | 1291.00 | 0.43 | 0.42 |
| 1960 | 1.16 | 1.17 | 19.89 | 33.80 | 1291.00 | 1291.00 | 0.47 | 0.46 |
| 1965 | 1.10 | 1.10 | 14.27 | 23.90 | 1291.00 | 1291.00 | 0.52 | 0.51 |
| 1970 | 1.04 | 1.03 | 10.24 | 16.90 | 564.80 | 1097.10 | 0.57 | 0.56 |
| 1975 | 0.99 | 0.97 | 7.35 | 12.00 | 211.30 | 410.40 | 0.63 | 0.62 |
| 1980 | 0.93 | 0.91 | 5.27 | 8.51 | 79.00 | 153.50 | 0.69 | 0.68 |
| 1985 | 0.88 | 0.85 | 3.78 | 6.03 | 29.60 | 57.40 | 0.76 | 0.75 |
| 1990 | 0.84 | 0.80 | 2.71 | 4.27 | 11.10 | 21.50 | 0.84 | 0.82 |
| 1995 | 0.79 | 0.75 | 1.95 | 3.02 | 4.14 | 8.04 | 0.92 | 0.91 |
| 2000 | 0.75 | 0.70 | 1.40 | 2.14 | 1.55 | 3.01 | 1.01 | 1.00 |
| 2002 | 0.73 | 0.68 | 1.22 | 1.87 | 1.05 | 2.03 | 1.05 | 1.04 |
GRG, general rubber good.