There are woods (primarily non-US “exotics”) that can cause issues due to allergies and sensitivities developed over time, but nearly all US domestic woods are considered food safe after made. There is much more concern with inhaling sawdust in general and developed sensitivity due to long term physical exposure to raw, green wood. I don’t believe that the issue is widespread enough to justify any sort of a test kit. One of the issues with a test would be that it is primarily a sensitivity issue with the individual as opposed to the toxicity of the material. The links below were some I found for wood toxicity and sensitivity information.