Table 2
Median concentrations of N-methylformamide (NMF) and N-acetyl-S-(N-methylcarbamoyl)cysteine (AMCC) in urine, and N-methylcarbamoylated haemoglobin (NMHb) in blood of workers exposed to N,N-dimethylformamide (DMF) in dependence on different job tasks
| No. | Job description | NMF (mg/l) | NMF (mg/g) | AMCC (mg/l) | AMCC (mg/g) | NMHb (nmol/g) | |
|---|---|---|---|---|---|---|---|
| Volume and creatinine related concentrations are given for NMF and AMCC. n, number of workers. | |||||||
| Exposure group 1 | 1 | Fibre crimping (n = 11/12) | 8.7 | 7.4 | 5.5 | 6.4 | 49.0 |
| 2 | Person in charge (n = 1) | 4.7 | 6.5 | 6.2 | 8.6 | 148.8 | |
| 3 | Spinning solution (n = 1) | 8.0 | 3.1 | 38.6 | 14.9 | 169.6 | |
| Exposure group 2 | 1 | Spinning machine (n = 14) | 18.6 | 11.3 | 17.7 | 14.6 | 122.8 |
| Exposure group 3 | 1 | Precipitation bath (n = 1) | 9.6 | 5.1 | 29.1 | 15.5 | 135.6 |
| 2 | Washing machine (n = 1) | 27.6 | 12.0 | 116.5 | 50.6 | 205.7 | |
| 3 | Colouring (n = 2) | 21.4 | 18.9 | 17.0 | 12.3 | 143.0 | |
| 4 | Fibre tows (n = 3) | 32.2 | 13.7 | 11.3 | 13.7 | 191.4 | |
