可能在工作场所发现的化学物,具有一些不同的物理状态:粉尘、烟尘、雾、气体、蒸气和液体。这些化学物,特别是当它们过量地出现于空气中或被处置时,可能有危害。要记住,一些特别危险的有毒化学物,虽仅小量就可以视为过量了。 拫据不同的物理状态来区分化学危害物是重要的,因为不同形态的毒物对身体的作用也可能有异。此外,举例说,个体防护设备,防尘的可能与防毒的就是不一样的。 Chemicals that may be found in the workplace have a number of different physical states: dust, fumes, fog, gases, vapors, and liquids. These chemicals, especially when they appear excessively in air or disposed of, can be hazardous. Keep in mind that some particularly dangerous toxic chemicals, even small, can be considered as excessive. It is important to distinguish chemical hazards from different physical states, since the effects of different forms of toxins on the body may vary. In addition, for example, personal protective equipment, dust-proof may be anti-virus is not the same.