The radiation RF-EMF causes damaged DNA, heat to the tissues and disrupt the blood-brain barrier. These effects are real and ARPANSA is actively involved with the EHS communities, medical experts as well as researchers. The agency will continue review research on the health effects of EMF radiation.
emf radiation is caused by RF-EMF
exposed to electromagnetic fields that are created by man (EMFs) is associated with DNA damage and other health consequences. EMFs can affect the intracellular ionic levels, which are vital to maintain the electrochemical balance of cells. It can also cause disruption to cell homeostasis and result damages to the DNA. Moreover exposure to EMFs can also trigger an overproduction of free radicals as well as reactive oxygen species (ROS).
Exposure to RF-EMF radiation has been associated with changes in the male germ cell's development. This results in the development of germ cells into spermatozoa, aswell as functional maturation as the spermatozoa pass through the epididymis. To investigate the effects of RF-EMF on the development of male germ cells, a specifically-designed waveguide device was developed for the exposure of unrestrained mice to RF-EME in the range of 2.2 W/kg.
In a study that was conducted recently, researchers found exposure to RF-EME causes oxidative DNA damage in the spermatozoa. Sperm DNA fragmentation was increased by 18% after one week of treatment and by 23 percent after 5 weeks. Furthermore, DNA damage in mitochondria was observed by measuring the level of a biomarker, 8-hydroxy-2-deoxyguanosine (8-OH-dG).
However the fact that RF-EMF radiation isn't yet considered to be a carcinogen. However, numerous studies have found that exposure to RF-EMF radiation can damage DNA integrity in a range of cell lines. In one such study, scientists subjected Vero cell lines to EMF at 100 Hz over 45 minutes. They evaluated DNA damage at 48 hours following exposure to determine whether the exposure had a negative effect on DNA integrity.
RF-EMF causes tissue heating
While the effects of RF-EMF are generally considered to be thermal, some studies have demonstrated that non-thermal effects may also be evident. what is emf radiation could be responsible for certain of the unsolved findings in the epidemiological study of EMF hypersensitivity. Therefore, it is important to look at the non-thermal aspects when conducting a systematic review.
Non-thermal effects from RF-EMF could occur at the cell membrane. This is an area which has already been extensively investigated. Particularly the electrochemical behavior of cell membranes has been investigated. what is emf radiation suggests that energy generated by RF-EMF greater than 1 MHz is transmitted to the tissue via dielectric dissipation and ionic discharge. Studies of the theory have suggested that the energy transfer to tissues could be as high as 200 kV/m.
The electric properties of tissue are regulated in the form and quantity of water molecules and ions, and other molecules within the body. This determines how absorbed EMR from RF is absorbed by different tissues. The tissues with the highest conductivity tend to absorb more field and cause more of an impact. This is the reason the degree of heating in tissues is not constant between the outside and inside however, it is more prevalent in hot spots. Bone and fatty tissue is less prone to RF heating as compared to other tissues, since they are low in water content.
The intensity of penetration of the electromagnetic field is determined by the frequency and strength that the electromagnetic field has. Muscle tissue is more able to absorb field radiation than most tissues and transforms it into heat more effectively. Typically, the depth of penetration of RF-EMF is measured as millimeters (mm). The higher the frequency, the deeper the penetration.
RF-EMF causes blood-brain barrier disruption
Researchers have found that RF EMF can alter the blood-brain-barrier, altering sleep patterns and neurotransmitter levels. Additionally, the effects on the effects of EMF in brain activities have been linked to neurodegenerative disorders. For instance, EMF from mobile phones can alter electroencephalogram activity as well as sleep patterns, as well as the activity of nitric oxide and xanthin oxidase.
Researchers at the Vienna University have studied the effects of exposure to RF-EMF in brain cells. They also looked at the effects of ELF EMF on nervous system. While the mechanisms of the cell that are involved aren't fully understood but there is a clear relationship between exposure to ELF EMF and myelin depletion. This relationship might account for the electro-hypersensitivity symptoms of electro-hypersensitivity. Fortunately, there are some tested methods to regenerate myelin within the brain.
Researchers have observed that exposure to frequencies of 900 Mhz EMF increased the permeability of the BBB and caused an increase in symptoms of neuronal damage in rats. They also observed increased extravasation of neuronal albumin. Furthermore, they discovered that after 30 minutes of exposure to 900 MHz, 99mTc-MIBI increased its penetration to the cerebral cortex. However this effect didn't occur with Evans blue injections.
However, RF-EMF is not able to provide a definitive mechanism for disrupting the BBB. The evidence suggests that nonthermal EMF exposure increases erythrocyte membrane permeability. This could influence the BBB and also increase the efflux of calcium-ion. Additionally, the presence of a 99mTc-MIBI radiotracer within the brain has also been linked to increased permeability of BBB.