what affect is there on the mother and child if the mother works in a factory?

Some effects that may occur to the mother and child are:
1) Stress on both bodies
2) Some lung problems may occur to the mother from smoke and that would cause the baby to have problems.
3) Miscarriage because the mother could be doing too much work and too much heavy lifting.
There are numerous things that could happen to the mother and child if the mother works in a factory.