This report was submitted to IATSE by Aura Health & Safety Corporation in April 2018.

With the increased use of fog-based products in the entertainment industry, interest in the health effects of fog exposures among workers in the industry has also grown. The International Alliance of Theatrical Stage Employees (IATSE) requested Aura Health and Safety Corporation (Aura) in collaboration with the University of British Columbia (UBC) to conduct air monitoring of fog aerosol exposures. Since fog special effects used in film and theatrical productions typically use organic-based fog products, the focus of the study involves examining glycol and glycerin-based fogs.

The aim of the study is to address the following objectives:

1) Develop correction factors that can be used with a direct-reading instrument for assessing exposures released by fog fluid products containing propylene glycol, triethylene glycol, dipropylene glycol, butylene glycol, and glycerin.

2) Evaluate parameters that affect the correction factors, such as product chemical composition and aerosol particle size.

The full report can be found here.