Each involves exposure to chemicals with hazards. Realistically, we must learn how to use or specify the use of workplace chemicals to minimize personal risk. However, as you might suspect, the cyanide is extremely toxic, and can be fatal at very low exposure levels. The two food materials have very low level toxicity, and large quantities are required for adverse systemic effects. We've discovered the first important fact about chemical toxicity.
All chemicals are somewhat toxic .
Taste, Touch, and Smell Another important factor is the method of exposure to a specific workplace chemical. In electrical construction, inhalation and dermal exposures are often the primary concern. Most field workers know better than to eat workplace materials but may not think about problems from smelling or touching them. This MSDS is available from the chemical manufacturer. It provides information on toxicity, exposures, and first aid.