Measurement and Analysis of the Radio-Frequency Electromagnetic Environment in Downtown Areas of Beijing

Abstract

Overview

This study investigates the radio-frequency electromagnetic environment in downtown areas of Beijing, specifically addressing the increasing public exposure to electromagnetic fields (EMFs) prompted by advancements in wireless technology, including 5G. Recognizing the potential health risks, the study focuses on measuring EMF levels in key urban locations to provide critical data on spatial distributions.

Findings

• Measurements covered frequencies from 10 MHz to 8.0 GHz across three representative downtown areas.
• The spatial distribution of EMF levels was illustrated using two-dimensional maps created through interpolation techniques.
• Results were analyzed relative to China's exposure level limits and data from the national radiation environment annual report.

Conclusion

While the study detected an increase in average EMF levels by approximately 44.4% compared to previous year, observed levels remained below national safety standards. Thus, according to regulated thresholds, there is no immediate evidence of health consequences from the RF EMF levels in these areas. However, the ongoing increase in exposure highlights the need for continuous monitoring and reassessment of safety standards in the wake of evolving wireless technologies.