fog & haze health & safety considerations janet sellery, crsp
TRANSCRIPT
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FOG & HAZEFOG & HAZEHealth & Safety Health & Safety ConsiderationsConsiderations
Janet Sellery, CRSPJanet Sellery, CRSP
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IntroductionIntroductionDirectors and designers love to
use fog and haze effectsPeople exposed to fog and haze
have experienced health effects
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Session OutlineSession OutlineStudies on health effectsLevels of ExposureFog and haze H & S issuesDue diligenceRisk assessment and controlsEducation and communicationAccommodationResources
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Supplier ad:Supplier ad:
“Theatrical fog machines create fog
by vaporizing a special, safe and non-toxic water-
based fluid”
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Is it safe?Is it safe?“Safe” - adjective 1 protected
from danger or risk. 2 not causing or leading to harm or injury.
Source: Compact Oxford English Dictionary
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Is It Non-Toxic?Is It Non-Toxic?“Non-toxic” is not meaningful and can be
misleading. No definition or standard is used for
judging a consumer product or its ingredients
No assurance that such a claim has been independently verified.
A product that does not meet the definition of “toxic” according to the Consumer Product Safety Commission (US) should not necessarily be considered non-toxic
Source: http://greenerchoices.org/eco-labels/
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BackgroundBackgroundConcerns about fog products go back to
the late 1980sMonona Rossol, Arts Crafts & Theatre
Safety, published “Theatre Fogs and Smokes: A Report on their Hazards” in 1990
American Equity reported on a study conducted by NIOSH in 1991
ESTA has become actively involved through their Fog Working Group, technical standards and fog testing program
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Study #1 – Health Effects Study #1 – Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and Pyrotechnics2000 – Mount Sinai School of
Medicine and ENVIRON, sponsored by American Equity Association
Study conducted in 1997 – 1999439 adult performers16 Broadway musicals
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Study #1 – Health Effects Study #1 – Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and PyrotechnicsStudy included:
◦Epidemiologic assessment – collection of data from Actors regarding symptoms they reported experiencing and background info (questionnaires, daily checklists, medical
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Study #2 – Health Effects Study #2 – Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and PyrotechnicsStudy included:
◦Exposure assessment – potential exposures were estimated by collecting: Personal breathing zone samples General air samples Various locations in the theatres Both live performance and rehearsal settings
◦Results were combined in developing conclusions re. exposures and health effects
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Study #1 – Health Effects Study #1 – Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and PyrotechnicsFindings:
◦No evidence of serious health effects was found to be associated with exposure to any of the theatrical effects evaluated in this study
◦Peak exposures following a release of glycol smoke are associated with increased reporting of respiratory, throat, and nasal symptoms
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Study #1 – Health Effects Study #1 – Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and PyrotechnicsFindings:
◦Elevated exposures to mineral oil haze are associated with increased reporting of throat symptoms.
◦Other factors in increased symptom reporting – perceived levels of stress (at work and away from work), performance schedule, and the physical demand of the role(s)
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Study #1– Health Effects Study #1– Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and PyrotechnicsFindings
◦Observed association between increased signs and symptoms of respiratory irritant effects and exposure to elevated levels of glycols and mineral oil
Recommendations for actors in musicals◦Glycols – not to exceed 40 mg/m³◦Mineral Oil – not to exceed 25 mg/m³
(Time weighted average below 5 mg/m³)
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Study #1– Health Effects Study #1– Health Effects Evaluation of Theatrical Smoke, Evaluation of Theatrical Smoke, Haze and PyrotechnicsHaze and PyrotechnicsRecommendations for actors in
musicals◦As long s peak exposures are
avoided, health, vocal abilities and careers of Actors should not be harmed.
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Study #2 - Atmospheric Study #2 - Atmospheric Effects in the Entertainment Effects in the Entertainment Industry Industry 2003 UBC School of Occupational
and Environmental Hygiene, requested by SHAPE
Study included:◦Survey of special effects technicians◦Analysis of chemicals used◦Simple monitoring method for se in
the industry◦Levels of exposure ◦Health effects
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Study #2 - Atmospheric Study #2 - Atmospheric Effects in the Entertainment Effects in the Entertainment Industry Industry Findings
◦Fog aerosols were small enough to enter the smallest airways and air sacs of the lungs
◦Mineral oil exposure exceeded the proposed ACGIH TLV
◦Exposure was higher for employees working close to the fog machine, spending more time in the visible fog on productions with more fog machines in
use, regardless of the type of production or fog chemicals being used
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Study #2 - Atmospheric Study #2 - Atmospheric Effects in the Entertainment Effects in the Entertainment Industry Industry Health Effects
◦Respiratory health of 101 persons was compared to a control group from BC Ferries
◦Entertainment industry employees had: Lower than average lung function test
results More chronic respiratory symptoms and
current asthma symptoms
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Study #2 - Atmospheric Study #2 - Atmospheric Effects in the Entertainment Effects in the Entertainment Industry Industry Findings
◦Acute changes on testing day: Increased nose, throat and voice
symptoms Glycol fogs – more common dry cough ,
dry throat, headache, dizziness, tiredness Mineral oil fogs – measureable drop in
lung function (over approx 4 hours)
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Study #2 - Atmospheric Study #2 - Atmospheric Effects in the Entertainment Effects in the Entertainment Industry Industry Recommendations:
◦Exposure control plans for mineral oil◦Exposure minimization plans for
glycol fluids◦Exposure reduction strategies (See
the ActSafe Bulletin)
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““Anything other than Anything other than clean ,moist air can hurt clean ,moist air can hurt your vocal cords”your vocal cords”
Brent Rossington, SHAPE
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Levels of ExposureLevels of ExposureRegulation 833 Control of
Exposure to Biological or Chemical Agents
ANSI E1.5 2009 – Theatrical Fog Made With Aqueous Solutions of Di- and Trihydric Solutions
American Equity Association - Theatrical Smoke, Fog, and Haze Testing Time and Distance Guidelines (2007)
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Health & Safety IssuesHealth & Safety IssuesParticulatesDrynessHumidityAllergiesAsphyxiationToxic Byproducts
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ParticulatesParticulatesWhenever you introduce
particulates, some people may experience irritation, especially those with respiratory problems
Minor irritation, which might go unnoticed by most people, may affect vocal performance and may leave performers more susceptible to colds and infections
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DrynessDrynessWhen you use glycol products
and dry ice, the air will become drier and some people may experience sore throats
People who wear contact lenses may experience dry eyes
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HumidityHumidityWhenever you use low lying fog
(ex. Dry ice carried by CO2), humidity will increase and there is potential for slippery floors
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AllergiesAllergiesAlmost any substance may be
capable of causing an allergyWhile most people will not
develop allergies, there is no reliable way to predict who will be affected
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AsphyxiationAsphyxiationWhen oxygen is displaced (dry
ice), there is potential for asphyxiation
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Toxic ByproductsToxic ByproductsIncompatible fluids and
machines, or machines with malfunctioning temperature controls may allow combustion.
Toxic byproducts may be created.
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San Francisco OperaSan Francisco OperaAs of 2002, 23 out of 44 chorus
members reportedly suffered respiratory problems, throat irritation and other ailments that they blame on theatrical fog
At least one singer filed a workers compensation claims and complained to OSHA; another filed a lawsuit,
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San Francisco OperaSan Francisco OperaThe San Francisco Opera says it dropped
glycol fog more than a year ago because of Pamela Dale's complaints and because stage designers want different effects.
They have instead used mineral oil, liquid nitrogen or dry ice, or combinations of those.
Dale says the mineral oil fog also irritates her throat.
Performers are allowed to opt out of any opera that uses fog but still be paid
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San Francisco OperaSan Francisco OperaSome audience members have also
claimed to have had reactions"When somebody sees a smoke or fog like
this, it's a psychological problem," says Jim Kehrer, head of pharmacology and toxicology at the University of Texas. "If you see some sort of fog or smoke rolling at you, and you already have a breathing problem, it's going to get worse."
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San Francisco OperaSan Francisco OperaDale says that opera houses should be more
creative with lighting and rely more on the audience's imagination instead of fog.
But "they'll stop using it when someone like Luciano Pavarotti gets a reaction to stage fog," says lawyer Steven Weiss, whose client Will Roy, an opera singer, received an undisclosed settlement from the Cleveland Opera after claiming he suffered an allergic reaction in 1990.
Source: Kelly Yamanouchi, AP Writer, Backstage, Jan. 2001
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““Beauty and the Beast”, Beauty and the Beast”, BroadwayBroadwayIn 1995, nearly a third of the 25
members of the pit orchestra …complained of asthma-like effects, according to Bill Moriarity, president of American Federation of Musicians Local 802.
Source: Kelly Yamanouchi, AP Writer, Backstage, Jan. 2001
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Sometimes fog is a bad Sometimes fog is a bad idea…idea…Insect fogger using an unknown
product, sitting in a foil roasting pan because it leaked so badly
Fog blasted up from a trap into the face of an actor who developed persistent bronchitis
Fog that filled a quick change area causing asthma in a wardrobe attendant, who had to wear a respirator (WSIB claim)
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“We were designed
to breathe air”
Monona RossolArts, Crafts and
Theater Safety
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So how do we work with So how do we work with fog?fog?There are no safe ways to work
with fogThere are safer ways to work
with fogNo one can promise that fog will
not have health effects for some people.
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Due DiligenceDue DiligenceAn important legal and cultural
component of a H & S management system
The level of:◦Care◦Prudence◦Determination◦Activitythat a person would reasonably be expected to exercise under a situation’s particular circumstances
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Due DiligenceDue DiligenceUnder sections 25 (2) (h) and 27
(2) (c) of the OHSA, employers and supervisors must “take every precaution reasonable in the circumstances for the protection of the worker”.
This is known as the general duty or due diligence clause.
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Due DiligenceDue Diligence
Seems subjectiveMay be measured using the reasonable person test:◦What dozen peers would consider
reasonable under a similar set of circumstances
◦The result is a balanced, wise and defendable judgment
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Due DiligenceDue DiligenceSafer ways to work with fog
require:◦Risk assessment and control◦Education and communication◦Accommodation for people who have
problems with fog
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Risk Assessment and Risk Assessment and ControlControlThe foundation of OSH – a
powerful tool for dealing with unique issues
Depending on the jurisdiction, it is either explicit or implied
In some jurisdictions (including Alberta), employers must perform and formally document regular hazard assessments at their worksites
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Identifying and Assessing Identifying and Assessing HazardsHazardsHazard – any condition or
circumstance that has the potential to cause injury or illness
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Eliminating and Eliminating and Controlling HazardsControlling HazardsWhenever possible, hazards should be
eliminatedIf this is not possible, they must be
controlledControl means reducing the hazard to
levels that present a minimal risk to worker health
Controls, in order of preference, include:◦Engineering controls◦Administrative controls◦Personal protective equipment (PPE)
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Engineering ControlsEngineering ControlsFirst and preferred choiceThey physically control hazardsExample:
◦Substitution of a less toxic product
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Administrative ControlsAdministrative ControlsSecond choiceExamples:
◦Safe work practice and procedures◦Worker training◦Scheduling and supervision◦Purchasing decisions◦Preventative maintenance programs◦Signage
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Personal Protective Personal Protective EquipmentEquipmentLast resort of hazard controlShould be used only after
engineering and administrative controls have been shown to be impractical, ineffective or insufficient
Used to lessen the potential harmful effects of exposure to a known hazard
Examples:◦Respirators
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Control of HazardsControl of HazardsEach workplace must find controls
that are specific to that workplaceWorkers must be protected from
harmful exposures to hazardous substances
For best results, choose the most effective place to apply controls:◦At the source (first choice)◦Along the path◦At the worker (last choice)
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Risk AssessmentRisk AssessmentWho will be exposed?
◦Actors, musicians◦Stage management, crew, wardrobe
attendants◦Patrons◦Children, seniors *◦People with health issues *
* These populations have not been studied.
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Risk AssessmentRisk AssessmentReview the Risk Assessment
chart for Fog and Haze Effects
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Education and Education and CommunicationCommunication
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EquipmentEquipmentSelect appropriate equipment
and learn how to use it to create the effects you want
Read and follow manufacturer/supplier instructions
Contact the manufacturer/supplier for additional info
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Fog ProductsFog ProductsWorkers using fog should have WHMISEvery product should have a complete
and accurate MSDS – READ IT!Do not use a product if ingredients
are not listed or if it is “home made” with no MSDS
NOTE: The MSDS may not reflect the intended use of the product – blowing it into the air and inhaling it
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Fog ProductsFog ProductsPrior to the Cue to Cue rehearsal,
each Technical Director is responsible for posting the MSDSs (Material Safety Data Sheets) for fog and smoke products to be used for each production for the acting company and production staff.
Copies shall also be given to the Stage Manager
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AccommodationAccommodationIf there is a change in the
atmospheric conditions of the theatre (ventilation, heat, air conditioning and humidity) during the run, the Stage Manager may request changes to the levels or durations of effects in order to maintain the look of the production.
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AccommodationAccommodationIf a member of the acting company or
production staff experiences adverse health effects due to fog or smoke, they must report their concerns to the Stage Manager or Technical Director.
The Stage Manager, in consultation with the Technical Director, may request changes to the levels or durations of effects for up to two performances.
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AccommodationAccommodationBeyond two performances,
changes to fog and smoke may only be made with the approval of the Director of Production and the Producer.
Respirators equipped with appropriate filter cartridges should be used where circumstances warrant.
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ResourcesResourcesOntario Ministry of Labour ActSafe - formerly SHAPE (BC)Actors Equity Association (US)ESTA (US)Australian Entertainment
Industry Association
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Next Steps…Next Steps…Conduct testing to assess real levels
of exposure – ESTA Fog Testing Program
Investigate safer options such as potable water under high pressure (used in “O”)
Develop healthy and safe practices to ensure long, productive careers.
Be curious and ask questions.
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Opera America Newsline, Opera America Newsline, Jan. 1999Jan. 1999“Smoke makes the air a palpable
presence. You can see the light moving…it’s a way of making the beams register… Management is beginning to understand that there may be a problem, and consider that they may have a moral responsibility not to endanger singers and crew.” (John Conklin, designer and director of productions at Glimmerglass Opera and New York City Opera)
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Opera America Newsline, Opera America Newsline, Jan. 1999Jan. 1999Until any conclusive scientific
findings become available, companies must consider a variety of variables, including an honest look at their own theatre ventilation systems and sensitivities of cast and crew.
Current methods for creating a palpable atmosphere onstage may prove harmless, but until then, it’s best to proceed with informed caution.
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Questions ???Questions ???
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Contact Info:Contact Info:
Janet Sellery, CRSPjanet@selleryhealthandsafety.comwww.selleryhealthandsafety.com