 |
| |||
| concentration à la surface du sol | |||
| |||
| concentration observée au sol; nuisance f | |||
| concentration au niveau du sol; nuisance f (of pollutants); immission f (of pollutants) | |||
| ground-level concentration: 5 phrases in 3 subjects |
| Environment | 2 |
| General | 1 |
| Nuclear physics | 2 |