Effects of theatrical smokes and fogs on respiratory health in the entertainment industry

Introduction:
This text is a scientific study on the effects of theatrical smokes and fogs on respiratory health in the entertainment industry. The study measures personal fog exposures, across work shift lung function, and acute and chronic symptoms of 101 employees at 19 sites using fogs. The results are compared to an external control population.

Key Points:

* Theatrical fogs (glycol or mineral oil aerosols) are widely used in the entertainment industry to create special effects and make lighting visible.
* Chronic work-related wheezing and chest tightness were significantly associated with increased cumulative exposure to fogs (mineral oil and glycols) over the previous 2 years.
* acute cough and dry throat were associated with acute exposure to glycol-based fogs. Increased acute upper airway symptoms were associated with increased fog aerosol overall.
* Lung function was significantly lower among those working closest to the fog source.
* The study found that mineral oil- and glycol-based fogs are associated with acute and chronic adverse effects on respiratory health among employees.
* Reducing exposure, through controls, substitution, and elimination where possible, is likely to reduce these effects.
* Further work should be undertaken to assess exposures to fogs and health impacts on audiences at entertainment venues and members of the public at other sites where these products are used, and to determine an occupational exposure limit for glycol-based theatrical smokes.

Main Message:
The study found that theatrical fogs, which are widely used in the entertainment industry, are associated with acute and chronic adverse effects on respiratory health among employees. The study recommends reducing exposure to these fogs through controls, substitution, and elimination where possible. additionally, further work should be done to assess exposures and health impacts on audiences and the public, and to determine an occupational exposure limit for glycol-based theatrical smokes. Overall, the study highlights the need for increased awareness and regulation of the use of theatrical fogs in the entertainment industry.

Varughese, Sunil, Kay Teschke, Michael Brauer, Yat Chow, Chris Van Netten, and Susan M. Kennedy. “Effects of Theatrical Smokes and Fogs on Respiratory health in the Entertainment Industry.” american Journal of Industrial Medicine 47, no. 5 (May 2005): 411–18. https://doi.org/10.1002/ajim.20151.