Rat lymphocytes in cell culture exposed to 2450 MHz (CW) microwave radiation

Rat lymphocytes were exposed to continuous wave microwave radiation at a frequency of 2450 MHz at intensities of 5, 10 and 20 mW/cm2. The corresponding rates of absorption of energy were determined to be 0.7, 1.4 and 2.8 mW/g. The lymphocytes were exposed for 4, 24 or 44 h either with or without the addition of a mitogen (phytohemagglutinin). The transformation of lymphocytes into lyphoblasts was monitored by the addition of tritiated thymidine. No significant differences (P less than .05) were found in the uptake of tritiated thymidine between exposed and control cultures.