WEBINAR - Occupational Aspects of New Lighting Technologies


In 2018, ACGIH® published on the Notice of Intended Changes, a statement on the occupational health aspects of new lighting technologies. It describes the circadian, neuroendocrine and neurobehavioral effects of light. Over the past decade a revolution in indoor lighting has been underway, fueled partly by the new technologies of compact fluorescent lamps (CFLs) and solid-state, light-emitting-diode (LED) lamps, and partly by efforts to reduce the consumption of electrical energy. Do these changes in the work environment pose any health concerns? The ACGIH® TLVs® for Light and Near Infrared Radiation for evaluating optical radiation have existed for decades and lamp safety standards refer to these TLVs®. These guidelines have been developed to avoid retinal injuries from exposure to very intense light sources (e.g., welding arcs). In most workplace settings, there is little chance that workers will be exposed to general lighting sources (GLS) used for visual purposes that exceed current TLVs®.

Learning Objectives

After participating in this webinar, attendees will:

  • Be more aware of the significant changes now taking place in lamp technology and lighting installations—particularly those related to solid-state lighting.
  • Learn the new discoveries since 2001 on the influence of the spectral distribution of environmental light on the circadian, neuroendocrine and neurobehavioral effects of light.
  • Understand the role of newly discovered retinal photoreceptor (the intrinsically photosensitive retinal ganglion cell or ipRGC) that influences the circadian, neuroendocrine and neurobehavioral effects of light.
  • Appreciate the differences between the current ACGIH® TLVs® that protect against retinal injury from intense light sources and the use of the term "blue-light hazard."
  • Learn about the potential impact of lighting on the body’s circadian regulation and how this might affect shift work.
  • Understand the causes of workplace complaints about new solid-state (LED) lighting installations.

Who Should Attend this Webinar?

  • Industrial Hygienists
  • Safety Professionals
  • OHS Managers
  • Process/Industrial Engineers
  • Health Physicists
  • Occupational Health Nurses
  • Occupational Physicians
  • Plant/Facility Managers

What is an ACGIH® Webinar?

ACGIH® is dedicated to providing quality, scientific, educational events. One method of doing this is to offer distance-learning webinars. A webinar, short for Web-based seminar, is a presentation, lecture, or seminar that is transmitted over the Internet. A key feature of a webinar is its interactive elements — the ability to give, receive and discuss information. Webinars are as effective as on-site presentations without the travel expense. This ACGIH® webinar is 1.5 hours in duration and consists of a live presentation given via the Internet with an audio telephone link similar to that of a conference call.

Audio Option

ACGIH® is pleased to offer webinar attendees an audio option. U.S. and Canadian attendees can connect to the audio portion of the webinar via the toll-free audio telephone link or listen to the audio portion through an audio stream directly through their computer. Other international participants can listen via the audio stream without incurring additional telephone charges.*

*Connection from outside the U.S. and Canada will be via streaming audio only.


This webinar contains 1.5 contact hours and may be eligible for ABIH CM credit. See the ABIH website (www.abih.org) for CM credit criteria. This webinar may also qualify for BCSP recertification points for Certified Safety Professionals. Participants seeking confirmation of attendance for the webinar from ACGIH® must attend the live webinar or view the archive and submit a final exam and evaluation. Certificates of Completion will be issued in a timely manner after receipt and completion of these items.