Abstract Exposures to electromagnetic radiation mainly from the extended use of mobile phones may initiate biological damages in the human body at the macromolecular level. Several studies on human and animal models have shown significant changes in the functions of neural cells. Present empirical study analyses the thermal changes and the specific absorption rates (SAR) of brain, eye and skin tissues due to prolonged exposure to mobile phone radiation. A phantom, simulating human head with skin, skull and brain was used for the study. The Phantom was exposed to radiation for longer durations (600 s and more) and the temperature variations at different specific points were studied with sensitive thermocouple probes. SAR (1 g of contiguous tissue) values were determined using the variations of temperature and other parameters. The average rise in brain temperature was found to be 0.10 ± 0.05 °C at 30 mm deep in the brain and the estimated SAR was 0.66 ± 0.35 Wkg-1. The increase in temperature for the eye socket was 0.03 ± 0.02 °C with SAR 0.15 ± 0.08 Wkg-1. The average rise in temperature for skin was 0.14 ± 0.05 °C and the SAR was 0.66 ± 0.42 Wkg-1. Although the measured SAR lie within the safe limit of 2 Wkg-1 recommended by the international regulatory body, considering the tremendous growth in the number of mobile phone users and prolonged use of mobile phone in communication purposes, the cumulative effects could be a real concern for human health.

中文翻译：

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4G手机辐射诱导加热对头部组织比吸收率的实证研究

摘要 长期使用手机导致的电磁辐射暴露可能会在大分子水平上对人体造成生物损伤。对人类和动物模型的多项研究表明，神经细胞的功能发生了显着变化。目前的实证研究分析了长时间暴露于手机辐射导致的大脑、眼睛和皮肤组织的热变化和比吸收率 (SAR)。该研究使用了一个带有皮肤、头骨和大脑的体模来模拟人的头部。Phantom 暴露在辐射下的时间更长（600 秒或更长时间），并且使用灵敏的热电偶探头研究了不同特定点的温度变化。使用温度和其他参数的变化来确定 SAR（1 克连续组织）值。发现在大脑深处 30 毫米处，大脑温度的平均升高为 0.10 ± 0.05 °C，估计的 SAR 为 0.66 ± 0.35 Wkg-1。眼窝温度升高 0.03 ± 0.02 °C，SAR 为 0.15 ± 0.08 Wkg-1。皮肤的平均温度升高为 0.14 ± 0.05 °C，SAR 为 0.66 ± 0.42 Wkg-1。虽然实测 SAR 在国际监管机构推荐的 2 Wkg-1 安全限值内，但考虑到手机用户数量的巨大增长和手机长时间用于通信目的，累积效应可能是一个真正令人担忧的问题为人类健康。皮肤的平均温度升高为 0.14 ± 0.05 °C，SAR 为 0.66 ± 0.42 Wkg-1。虽然实测 SAR 在国际监管机构推荐的 2 Wkg-1 安全限值内，但考虑到手机用户数量的巨大增长和手机长时间用于通信目的，累积效应可能令人担忧为人类健康。皮肤的平均温度升高为 0.14 ± 0.05 °C，SAR 为 0.66 ± 0.42 Wkg-1。虽然实测 SAR 在国际监管机构推荐的 2 Wkg-1 安全限值内，但考虑到手机用户数量的巨大增长和手机长时间用于通信目的，累积效应可能是一个真正令人担忧的问题为人类健康。