Here is a list of seven points which should be proven in dealing with the causation of an occupational disease claim:
1. Exposure occurred;
2. The injured worker does indeed suffer from the alleged disease;
3. An appropriate time period has passed between the exposure and the beginning of the disease;
4. Scientific evidence exists to connect the chemical exposed to and the alleged disease;
5. The amount of exposure was sufficient to cause the disease;
6. The exposure occurred in a way that was capable of producing the disease;
7. The injured worker was not equally exposed to other causes of the disease outside of the work environment.
Doctors specialized in these areas will likely be called upon to answer these questions.