8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body
Whole Body / General

Carcinogenic Properties of Ionizing and Nonionizing Radiation - Volume I - Optical Radiation

Bioeffects Seen

Silba Cunningham-Dunlop, Bruce H. Kleinstein · 1977

Share:

Federal health agencies recognized potential cancer risks from non-ionizing optical radiation nearly 50 years ago.

Plain English Summary

Summary written for general audiences

This 1977 NIOSH technical report examined the cancer-causing potential of optical radiation, which includes visible light, infrared, and ultraviolet radiation. The study was part of a broader government evaluation of both ionizing and non-ionizing radiation sources for their carcinogenic properties. This represents early federal recognition that non-ionizing radiation could pose health risks beyond just ionizing radiation like X-rays.

Why This Matters

This NIOSH report marks a pivotal moment in EMF health research - federal acknowledgment in 1977 that non-ionizing radiation, including optical frequencies, warranted serious carcinogenic evaluation. The science demonstrates that concerns about EMF health effects aren't recent paranoia, but have legitimate scientific roots dating back nearly five decades. What this means for you is that government agencies have long recognized the potential for non-ionizing radiation to cause biological harm, contradicting industry claims that such concerns are unfounded. The reality is that optical radiation surrounds us constantly through LED lighting, computer screens, and solar exposure, making this early research particularly relevant to our daily lives.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Silba Cunningham-Dunlop, Bruce H. Kleinstein (1977). Carcinogenic Properties of Ionizing and Nonionizing Radiation - Volume I - Optical Radiation.
Show BibTeX
@article{carcinogenic_properties_of_ionizing_and_nonionizing_radiation_volume_i_optical_r_g7005,
  author = {Silba Cunningham-Dunlop and Bruce H. Kleinstein},
  title = {Carcinogenic Properties of Ionizing and Nonionizing Radiation - Volume I - Optical Radiation},
  year = {1977},
  
  
}

Quick Questions About This Study

Optical radiation includes visible light, infrared, and ultraviolet radiation - the electromagnetic spectrum from about 100 nanometers to 1 millimeter wavelength. This encompasses sunlight, LED lights, lasers, and display screens that we encounter daily.
NIOSH recognized that non-ionizing radiation, including optical frequencies, might cause cancer through mechanisms different from ionizing radiation like X-rays. This represented early federal acknowledgment that EMF health effects deserved serious scientific investigation.
This report demonstrates that federal health agencies have recognized potential EMF health risks for nearly 50 years, contradicting industry claims that EMF concerns are recent or unfounded. It established precedent for studying non-ionizing radiation carcinogenicity.
Modern LED lights, computer screens, smartphones, and tablets all emit optical radiation frequencies that NIOSH identified as potentially carcinogenic. This early research provides historical context for current concerns about blue light and screen exposure.
NIOSH conducted comprehensive technical evaluation of optical radiation's cancer-causing potential as part of a broader assessment of both ionizing and non-ionizing radiation sources, establishing systematic methodology for EMF health risk evaluation.