To study the effect of a 900 MHz continuous wave radiofrequency exposure on the hematopoietic system in the rat.
Concanavalin A was used as positive control for proliferation rate test. Ultraviolet C radiation was used as positive control for the comet assay.
14 bones were used for bone marrow primary cell culture (either exposure or sham exposure) and 11 bones were used for lymphocytes primary cell culture (either exposure or sham exposure).
| Exposure | Parameters |
|---|---|
|
Exposure 1:
900 MHz
Modulation type:
CW
Exposure duration:
continuous for 30 min
|
|
| Frequency | 900 MHz |
|---|---|
| Type | |
| Charakteristic | |
| Polarization | |
| Exposure duration | continuous for 30 min |
| Modulation type | CW |
|---|
| Exposure source | |
|---|---|
| Setup | two petri dishes with bones, closed with parafilm and mounted on a 14 mm foam block, placed centrally in the TEM cell |
| Sham exposure | A sham exposure was conducted. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| power | 16.7 W | effective value | - | - | - |
| SAR | 2 W/kg | mean | calculated | cf. remarks | bone marrow |
The data did not indicate any significant change in the proliferation rate of bone marrow cells and lymphocytes, erythrocyte maturation rate and DNA damage of lymphocytes.
In conclusion, these results did not reveal any effect on the hematopoietic system in rats for 900 MHz radiofrequency exposure (CW) at the 2 W/kg localised SAR limit value recommended by the International Commission on Non-Ionizing Radiation Protection for public exposures.
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