ADVANTAGES

Prolonged exposure to irritant or corrosive concentrations in a confined space may produce little or no evidence of irritation. This has been interpreted to mean that the worker has become adapted to the harmful agent involved. In reality, it means there has been a general weakening of the defense reflexes from changes in sensitivity, due to damage of the impacted nerve system. The danger in this situation is that the worker is usually not aware of any increase in his exposure to toxic substances.

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