Exposure group1-150
|
Confidence
|
Years since first exposure
|
Concentration × frequency1-151
|
Duration (y)
|
Excluded | Possible | Any | Any | Any |
Excluded | Any | ⩽5 | Any | Any |
Unexposed | — | — | — | None |
Non-substantial | Probable or definite | >5 | <4 | Any |
Non-substantial | Probable or definite | >5 | ⩾4 | ⩽5 |
Substantial | Probable or definite | >5 | ⩾4 | >5 |