Styrene (CAS 100-42-5) is a monocyclic aromatic hydrocarbon. Styrene is a colourless, oily liquid that has a sweet smell. The odour threshold for styrene is less than 1 ppm.

Styrene is used in the production of polystyrene plastics and resins. Styrene products are used to make pipes, car parts, food containers and carpet backing. The major uses of styrene include plastics manufacture, paints, sealers, and other surface coatings

Examples of work activities involving styrene that require special attention when assessing exposure include:

  • fibreglass processes
  • manufacturing of reinforced plastics
  • as an additive in construction materials

This guide provides information for those registered medical practitioners engaged by a PCBU to carry out or supervise health monitoring for workers. This guidance should be read in conjunction with the following:

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