Cell Phones and Tumor: Still in No Man’s Land Summary
Cell Phones and Tumor: Still in No Man’s Land by D. R. Kohli, A. Sachdev, and H. S. Vats, addresses the issue of cellular phones and how they affect human health. The use of cellular devices is growing at an exponential rate, and the safety precautions and health issues related to them have yet to be analyzed completely. Whether or not there is any relation between brain tumors, cancer, and other health deficiencies is being questioned, and through many studies the answer to this question is ‘no’. In these studies there are still plenty of gaps that have not been addressed or even considered. A thorough answer cannot be given until these gaps are filled. “Although most studies conducted thus far show no correlation between cell phone use and increased cancer risk, the overall results of these studies cannot be deemed conclusive because of significant limitations in data collection accuracy.” (Page 7) The standing question is being addressed, and even many public health agencies have developed safety standards for cellular use.
Cell phones were introduced in Sweden in 1981, since then, many health concerns have developed. One being that, RFR, radio frequency radiation from cell phones may cause carcinogenesis. Many studies have brought about conclusions that are contradictory to this statement. Through RFR, cell phones interact with their base station even when a cell phone is not being used. The frequency being used for this task is in the same spectrum as that used by television sets and radios. Yet, RFR in this spectrum is a non-ionizing radiation, therefore RFR only uses enough energy to excite electrons, not completely move them to an atom. This means that the RFR that cell phones give off does not damage human body tissues through the normal means of radiation damage. Since damage is not created in this manner, one of the concerns is that the brain is an “antenna”. It acts as a receiver that catches harmful RFR.
Safety standards for occupational and public exposure to RFR are being developed. The Institute of Electrical and Electronic Engineers, the World Health Organization, and the International Commission on Non-Ionizing Radiation Protection have approached the safety issues and have developed beneficial standards. These standards must be updated and reviewed every so often, as required by law. These agencies also identify gaps in studies and current research. This helps progress the data of studies towards becoming more accurate. The agencies are unbiased and give guidelines that are respected amongst those concerned about the influence of cellular use.
The results of most studies cannot be held certain because of many important limitations in the data collection process. One of these limitations is that not many studies determine the use of cell phones of more than ten years. Sweden is the only place in which there has been a mass amount of cell phone use over ten years. Another limitation is that many studies use self-reporting interviews to estimate the amount of cell phone use therefore, allowing bias into the calculations. One example of this is the reported cell phone use duration, which has been up to 2.8 times the actual recorded time.
The third and fourth limitations in the data collection process is that the exposure to RFR depends on the type of phone, its model, whether the device is hands-free, and whether the calls were from a rural or urban location, and also that it is impossible to eliminate RFR exposure to study individual cell phone effects on human health. The model of a phone and the network it is a part of affect the length or range of exposure that the phone is able to have. Unlike prior cell phone usage of the analog system, many networks now use GSM communication to operate. GSM uses two frequencies unlike the former analog system that only used one. The SAR, site-specific absorption rate, is the exposure measure used for cell phone studies, but these measurements vary depending on certain models and frequencies. These frequencies can be affected by whether the phone call is being made from an urban or rural area, and some studies have shown that higher frequencies are used more often than lower frequencies in rural areas and a higher risk of brain tumors is focused on those living in the rural areas.
Some earlier studies have shown that there is a probable correlation between non-ionizing radiation exposure that is emitted from cell phones and television towers and cancer occurrence. Many later studies have invalidated those indications. In 1996, an Australian study indicated a relation between high rates of leukemia in children and FM/TV towers. This was reevaluated and refuted in 1998 due to the fact that the data was gathered from one area. Other studies in addition to this have shown mixed results in the concern of cell phone usage and its relation to brain cancer. In vitro studies also have not produced any answers that are positive in their data collection process.
When you take into account all of these studies, the better part of them have not found a correlation between cell phone usage and any human health issue. It is imperative that the gaps that have not been studied are closed and that safety precautions remain intact. The means in which the studies are done should be free of bias and full of different perspectives. If the future research is reliable, legitimate, and logical, the questions of today will be reduced and hopefully resolved.
Works Cited
Kohli, D., Sachdev, A., & Vats, H. (2009, January). Cell phones and tumor: Still in no man's land. Indian Journal of Cancer,
46(1), 5-12. Retrieved September 30, 2009, doi:10.4103/0019-509X.48589
