Dimensionless coefficients for assessing human exposure to radio-frequency electromagnetic fields indoors and outdoors in urban areas

Abstract

Overview

This study primarily focused on the evaluation of human exposure to electromagnetic fields in an urban setting, involving both indoor and outdoor environments within a medium-sized city. The unique objective was to assess exposure using dimensionless exposure quotients across a range of frequency bands.

Methodology

• Assessments were carried out using a personal exposure meter.
• Indoor measurements were conducted with the device in a static position, while outdoor measurements involved movement around buildings.

Findings

Analysis revealed that the median electric field was 0.200 V/m outdoors and 0.102 V/m indoors. The International Commission on Non-Ionizing Radiation Protection (ICNIRP) exposure quotients averaged 25 x 10−6 outdoors and 16 x 10−6 indoors. Notably, FM radio and mobile telephony were the most significant contributors to electromagnetic exposure. Intriguingly, proximity to the body during measurements occasionally resulted in overestimated electric field values.

Conclusion

The study underscores the continuous exposure to electromagnetic fields within urban environments and reaffirms the necessity of ongoing vigilance in monitoring and regulating these exposures to safeguard public health.