Development of health-based exposure limits for radiofrequency radiation from wireless devices using a benchmark dose approach
Abstract
Abstract
Overview
Current epidemiological studies and laboratory research consistently reaffirm that exposure to radiofrequency radiation (RFR) is potentially harmful, affecting vital organs such as the heart and brain. This is crucial as it underscores the imperative need to revise and potentially lower the permissible exposure limits to RFR.
Objectives
This study aims to establish refined and health-orientated RFR exposure guidelines, measured in whole-body Specific Absorption Rate (SAR), which quantifies the energy RFR deposits into biological tissues.
Methods
- Applied both frequentist and Bayesian averaging modeling to assess non-neoplastic lesion data from the U.S. National Toxicology Program studies.
- Determined the benchmark doses (BMD) that trigger a 10% response rate beyond the natural occurrence.
- Analyzed the potency of RFR in inducing cardiomyopathy and tumors in male and female rats using different modulations and frequency setups.
Findings
Significant findings included a highlighted increase in cardiomyopathy and tumorigenesis in male rats exposed to a frequency of 900 MHz under different modulations, namely CDMA and GSM, over various periods. Notably, lower threshold limits for cardiomyopathy were established, advocating for a RFR exposure limit that is substantially below the currently legal standards, particularly concerning the health of children.
Conclusion
The study firmly advocates for a reevaluation of current RFR exposure limits to a level much lower than present regulations to safeguard public health, especially that of younger populations. Calculated safe exposure recommendations suggest a 20-40-fold reduction compared to current standards is prudent for overall health safety.