It is difficult to study all of the possible harmful effects caused by interactions of industrial chemicals. Such a study would be too expensive to be realistic even for a subset of several hundred chemicals.

Question

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Due to the large number of industrial chemicals and the numerous ways they can interact with each other and with the environment, it is not practical to study all possible harmful effects. It would involve too much time, money, and resources to be feasible. Researchers instead focus on studying certain chemicals or groups of chemicals that are known or suspected to be hazardous.

It Is Difficult to Study All of the Possible Harmful