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[Hematologic changes in workers exposed to radio wave radiation].

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Budinscak V, Goldoni J, Saric M · 1991

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Radar workers showed measurable blood cell changes from low-level microwave exposure, proving biological effects occur even within safety limits.

Plain English Summary

Summary written for general audiences

Croatian researchers tracked blood cell counts in 43 radar operators exposed to low-level microwave radiation for four years. They found measurable changes in several types of blood cells, including decreased red blood cells and platelets, along with increased white blood cells and lymphocytes. While the authors noted these changes weren't considered medically dangerous and appeared reversible, the study demonstrates that occupational microwave exposure can alter blood chemistry.

Why This Matters

This study adds to a growing body of evidence showing that microwave radiation exposure can trigger measurable biological responses, even when those exposures fall within officially 'safe' limits. The fact that radar operators showed consistent blood cell changes over four years of exposure is particularly significant because these workers faced controlled, monitored conditions with multiple safety protections in place. What makes this research compelling is that the changes occurred at what the authors described as 'low intensity' microwave exposure. While the study authors characterized the effects as not pathologically significant, the reality is that any consistent biological change indicates your body is responding to and processing this environmental stressor. The reversible nature of most changes suggests your body has adaptive mechanisms, but it also raises questions about what happens with longer-term or higher-level exposures that many of us face daily through wireless devices.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

The aim of this study is to investigate Hematologic changes in workers exposed to radio wave radiation

Haematological parameters were measured in 43 radar operators employed in air traffic control occupa...

The haematological changes included a decreased number of erythrocytes, reticulocytes, platelets, se...

The changes were not pathologically significant and most of them were reversible.

Cite This Study
Budinscak V, Goldoni J, Saric M (1991). [Hematologic changes in workers exposed to radio wave radiation]. Arh Hig Rada Toksikol 42(4):367-373, 1991.
Show BibTeX
@article{v_1991_hematologic_changes_in_workers_1933,
  author = {Budinscak V and Goldoni J and Saric M},
  title = {[Hematologic changes in workers exposed to radio wave radiation].},
  year = {1991},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/1815491/},
}
PubMed: 1815491

Cited By (1 paper)

Quick Questions About This Study

Yes, radar exposure can affect blood cell counts. A 1991 Croatian study of 43 radar operators found measurable changes in blood chemistry after four years of microwave exposure, including decreased red blood cells and platelets, plus increased white blood cells and lymphocytes.
Microwave radiation can alter blood chemistry, but the changes may not be dangerous. Research on radar workers showed blood cell count changes from occupational exposure, though the authors noted these changes weren't medically significant and appeared reversible over time.
Occupational EMF exposure can cause biological changes in workers. A study of radar operators found altered blood cell counts after years of microwave exposure, though researchers classified these changes as not pathologically significant and mostly reversible.
Radar radiation can decrease red blood cells, platelets, and certain white blood cells while increasing total white blood cells and lymphocytes. These blood changes were documented in radar operators exposed to low-level microwave radiation over four years.
Microwave exposure can alter immune system markers in blood. Croatian researchers found increased white blood cells and lymphocytes in radar workers, suggesting immune system activation. However, the changes were considered reversible and not medically dangerous by the study authors.