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. 1982 May;39(2):105–119. doi: 10.1136/oem.39.2.105

Health implications of exposure to radiofrequency/microwave energies

S M Michaelson 1
PMCID: PMC1008955  PMID: 7039662

Abstract

ABSTRACT The rapid development of and the increase in the number and variety of devices that emit microwave/radiofrequency (MW/RF) energies has resulted in a growing interest regarding the potential effects on health of these energies. The frequency ranges considered in this review are: 300 kHz to 300 MHz (radiofrequency) and 300 MHz to 300 GHz (microwaves). Investigations have shown that exposure to certain power densities for several minutes or hours can result in pathophysiological manifestations in laboratory animals. Such effects may or may not be characterised by a measurable rise in temperature, which is a function of thermal regulatory processes and active adaptation by the animal. The end result is either a reversible or irreversible change, depending on the irradiation conditions and the physiological state of the animal. At lower power densities, evidence of pathological changes or physiological alteration is non-existent or equivocal. Much discussion, nevertheless, has taken place on the relative importance of thermal or non-thermal effects of radiofrequency and microwave radiation. Several retrospective studies have been done on human populations exposed or believed to have been exposed to MW/RF energies. Those performed in the US have not shown any relationship of altered morbidity or mortality to MW/RF exposure. Reactions referrable to the central nervous system and cardiovascular effects from exposure of man to microwave energy have been reported mostly in Eastern European publications. Individuals suffering from various ailments or psychological factors may exhibit the same dysfunctions of the central nervous and cardiovascular systems as those reported to result from exposure to MW/RF; thus it is extremely difficult, if not impossible, to rule out other factors in attempting to relate MW/RF exposure to clinical conditions. There is a need to set limits on the amount of exposure to MW/RF energies that individuals can accept with safety. Operative protection standards have apparently provided adequate safety to workers and the general population to permit the use of MW/RF energies without harm or detriment.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Adair E. R., Adams B. W. Microwaves modify thermoregulatory behavior in squirrel monkey. Bioelectromagnetics. 1980;1(1):1–20. doi: 10.1002/bem.2250010102. [DOI] [PubMed] [Google Scholar]
  2. BARRON C. I., BARAFF A. A. Medical considerations of exposure to microwaves (radar). J Am Med Assoc. 1958 Nov 1;168(9):1194–1199. doi: 10.1001/jama.1958.03000090024006. [DOI] [PubMed] [Google Scholar]
  3. BARRON C. I., LOVE A. A., BARAFF A. A. Physical evaluation of personnel exposed to microwave emanations. J Aviat Med. 1955 Dec;26(6):442–452. [PubMed] [Google Scholar]
  4. COOK H. F. The pain threshold for microwave and infra-red radiations. J Physiol. 1952 Sep;118(1):1–11. doi: 10.1113/jphysiol.1952.sp004768. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Clearly S. F., Pasternack B. S. Lenticular changes in microwave workers. A statistical study. Arch Environ Health. 1966 Jan;12(1):23–29. doi: 10.1080/00039896.1966.10664332. [DOI] [PubMed] [Google Scholar]
  6. Cleary S. F., Pasternack B. S., Beebe G. W. Cataract incidence in radar workers. Arch Environ Health. 1965 Aug;11(2):179–182. doi: 10.1080/00039896.1965.10664195. [DOI] [PubMed] [Google Scholar]
  7. Czerski P. Microwave effects on the blood-forming system with particular reference to the lymphocyte. Ann N Y Acad Sci. 1975 Feb 28;247:232–242. doi: 10.1111/j.1749-6632.1975.tb35998.x. [DOI] [PubMed] [Google Scholar]
  8. Daels J. Microwave heating of the uterine wall during parturition. Obstet Gynecol. 1973 Jul;42(1):76–79. [PubMed] [Google Scholar]
  9. Daels J. Proceedings: Microwave heating of the uterine wall during parturition. J Microw Power. 1976 Jun;11(2):166–167. [PubMed] [Google Scholar]
  10. Damon E. G., Yelverton J. T., Luft U. C., Mitchell K., Jr, Jones R. K. Acute effects of air blast on pulmonary function in dogs and sheep. Aerosp Med. 1971 Jan;42(1):1–9. [PubMed] [Google Scholar]
  11. Dodge C. H., Glaser Z. R. Trends in nonionizing electomagnetic radiation bioeffects research and related occupational health aspects. J Microw Power. 1977 Dec;12(4):319–314. [PubMed] [Google Scholar]
  12. Ely T. S., Goldman D. E., Hearon J. Z. Heating characteristics of laboratory animals exposed to ten-centimeter microwaves. IEEE Trans Biomed Eng. 1964 Oct;11(4):123–135. doi: 10.1109/tbme.1964.4502322. [DOI] [PubMed] [Google Scholar]
  13. GORDON Z. V., LOBANOVA E. A., TOLGSKAIA M. S. Nekotorye dannye o deistvii santimetrovykh voln; eksperimental'nye issledovaniia. Gig Sanit. 1955 Dec;(12):16–18. [PubMed] [Google Scholar]
  14. Hathaway J. A., Stern N., Soles E. M., Leighton E. Ocular medical surveillance on microwave and laser workers. J Occup Med. 1977 Oct;19(10):683–688. doi: 10.1097/00043764-197710000-00011. [DOI] [PubMed] [Google Scholar]
  15. Kleiner A. I., Genes V. S., Krylova E. V. Znachenie prostogo kiberneticheskogo metoda dlia differentsial'noi diagnostiki zabolevanii zheludka u bol'nykh gepatitom toksiko-khimicheskoi étiologii. Gig Tr Prof Zabol. 1975 Mar;(3):14–19. [PubMed] [Google Scholar]
  16. Liburdy R. P. Radiofrequency radiation alters the immune system: modulation of T- and B-lymphocyte levels and cell-mediated immunocompetence by hyperthermic radiation. Radiat Res. 1979 Jan;77(1):34–46. [PubMed] [Google Scholar]
  17. Lotz W. G., Michaelson S. M. Effects of hypophysectomy and dexamethasone on rat adrenal response to microwaves. J Appl Physiol Respir Environ Exerc Physiol. 1979 Dec;47(6):1284–1288. doi: 10.1152/jappl.1979.47.6.1284. [DOI] [PubMed] [Google Scholar]
  18. Lotz W. G., Michaelson S. M. Temperature and corticosterone relationships in microwave-exposed rats. J Appl Physiol Respir Environ Exerc Physiol. 1978 Mar;44(3):438–445. doi: 10.1152/jappl.1978.44.3.438. [DOI] [PubMed] [Google Scholar]
  19. Lu S. T., Lebda N., Pettit S., Michaelson S. M. Delineating acute neuroendocrine responses in microwave-exposed rats. J Appl Physiol Respir Environ Exerc Physiol. 1980 Jun;48(6):927–932. doi: 10.1152/jappl.1980.48.6.927. [DOI] [PubMed] [Google Scholar]
  20. MICHAELSON S. M., THOMPSON R. A., ELTAMAMI M. Y., SETH H. S., HOWLAND J. W. THE HEMATOLOGIC EFFECTS OF MICROWAVE EXPOSURE. Aerosp Med. 1964 Sep;35:824–829. [PubMed] [Google Scholar]
  21. Magin R. L., Lu S. T., Michaelson S. M. Microwave heating effect on the dog thyroid gland. IEEE Trans Biomed Eng. 1977 Nov;24(6):522–529. doi: 10.1109/tbme.1977.326163. [DOI] [PubMed] [Google Scholar]
  22. Magin R. L., Lu S., Michaelson S. M. Stimulation of dog thyroid by local application of high intensity microwaves. Am J Physiol. 1977 Nov;233(5):E363–E368. doi: 10.1152/ajpendo.1977.233.5.E363. [DOI] [PubMed] [Google Scholar]
  23. Majewska K. Badanie nad wpływem mikrofal na narzad wzroku. Klin Oczna. 1968;38(2):323–328. [PubMed] [Google Scholar]
  24. Merritt J. H., Chamness A. F., Allen S. J. Studies on blood-brain barrier permeability after microwave-radiation. Radiat Environ Biophys. 1978 Dec 22;15(4):367–377. doi: 10.1007/BF01323461. [DOI] [PubMed] [Google Scholar]
  25. Michaelson S. M., Dodge C. H. Soviet views on the biological effects of microwaves--an analysis. Health Phys. 1971 Jul;21(1):108–111. [PubMed] [Google Scholar]
  26. Michaelson S. M. Effects of exposure to microwaves: problems and perspectives. Environ Health Perspect. 1974 Aug;8:133–155. doi: 10.1289/ehp.748133. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Novitskii A. A., Murashov B. F., Krasnobaev P. E., Markizova N. F. Funktsional'noe sostoianie sistemy gipotalamus-gipofiz-kora nadpochechnikov kak kriterii pri normirovanni SVCh EM izluchenii. Voen Med Zh. 1977 Aug;(8):53–56. [PubMed] [Google Scholar]
  28. Odland L. T. Observations on microwave hazards to USAF personnel. J Occup Med. 1972 Jul;14(7):544–547. [PubMed] [Google Scholar]
  29. Oscar K. J., Hawkins T. D. Microwave alteration of the blood-brain barrier system of rats. Brain Res. 1977 May 6;126(2):281–293. doi: 10.1016/0006-8993(77)90726-0. [DOI] [PubMed] [Google Scholar]
  30. Peacock P. B., Simpson J. W., Alford C. A., Jr, Saunders F. Congenital anomalies in Alabama. J Med Assoc State Ala. 1971 Jul;41(1):42–passim. [PubMed] [Google Scholar]
  31. Preston E., Vavasour E. J., Assenheim H. M. Permeability of the blood-brain barrier to mannitol in the rat following 2450 MHz microwave irradiation. Brain Res. 1979 Sep 28;174(1):109–117. doi: 10.1016/0006-8993(79)90807-2. [DOI] [PubMed] [Google Scholar]
  32. RUBIN A., ERDMAN W. J., 2nd Microwave exposure of the human female pelvis during early pregnancy and prior to conception: case reports. Am J Phys Med. 1959 Dec;38:219–220. [PubMed] [Google Scholar]
  33. Roberts N. J., Jr, Steigbigel R. T. Hyperthermia and human leukocyte functions: effects on response of lymphocytes to mitogen and antigen and bactericidal capacity of monocytes and neutrophils. Infect Immun. 1977 Dec;18(3):673–679. doi: 10.1128/iai.18.3.673-679.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Robinette C. D., Silverman C., Jablon S. Effects upon health of occupational exposure to microwave radiation (radar). Am J Epidemiol. 1980 Jul;112(1):39–53. doi: 10.1093/oxfordjournals.aje.a112975. [DOI] [PubMed] [Google Scholar]
  35. Shacklett D. E., Tredici T. J., Epstein D. L. Evaluation of possible microwave-induced lens changes in the United States Air Force. Aviat Space Environ Med. 1975 Nov;46(11):1403–1406. [PubMed] [Google Scholar]
  36. Siekierzynski M., Czerski P., Milczarek H., Gidynski A., Czarnecki C., Dziuk E., Jedrzejczak W. Health surveillance of personnel occupationally exposed to microwaves. II. Functional disturbances. Aerosp Med. 1974 Oct;45(10):1143–1145. [PubMed] [Google Scholar]
  37. Silverman C. Nervous and behavioral effects of microwave radiation in humans. Am J Epidemiol. 1973 Apr;97(4):219–224. doi: 10.1093/oxfordjournals.aje.a121502. [DOI] [PubMed] [Google Scholar]
  38. Spalding J. F., Freyman R. W., Holland L. M. Effects of 800-MHz electromagnetic radiation on body weight, activity, hematopoiesis and life span in mice. Health Phys. 1971 Apr;20(4):421–424. doi: 10.1097/00004032-197104000-00007. [DOI] [PubMed] [Google Scholar]
  39. Stern S., Margolin L., Weiss B., Lu S. T., Michaelson S. M. Microwaves: effect on thermoregulatory behavior in rats. Science. 1979 Dec 7;206(4423):1198–1201. doi: 10.1126/science.505008. [DOI] [PubMed] [Google Scholar]
  40. Stolwijk J. A. Responses to the thermal environment. Fed Proc. 1977 Apr;36(5):1655–1658. [PubMed] [Google Scholar]
  41. Wiktor-Jedrzejczak W., Ahmed A., Sell K. W., Czerski P., Leach W. M. Microwaves induce an increase in the frequency of complement receptor-bearing lymphoid spleen cells in mice. J Immunol. 1977 Apr;118(4):1499–1502. [PubMed] [Google Scholar]

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