＜正＞ Chemical compounds ca ben found in the workplace in a number of different Physical forms: dust, fumes, smoke, mists, gases, vapors, and liquids. These compounds can be dangerous-particularly when there areexcessive amounts of them in the air or being handled. Remember, though, that if a chemical is especially harmful or toxic, ouly a small amount may be considered exccssive. Tt is important to classify Chemical hazards dy the dcfferent physical forms that they take because different forms can affect the body differently. In addition, the personal protective equipment needed to protect against a dust, for example, might be different from the protective equipment needed to protect against a gas.
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