Health effects of WiFi radiation: a review based on systematic quality evaluation

Abstract

Overview

WiFi radiation, despite constituting a small part of the total radiofrequency electromagnetic field (RF-EMF) exposure, has been under scrutiny for its potential health impacts. This review critically evaluates the biological and health effects related to WiFi exposure.

Research Methodology

• A systematic literature search was conducted scrutinizing papers from January 1997 to August 2020.
• Quality evaluation focused on blinding, dosimetry in experimental studies, and biases in epidemiological studies.
• A total of 1385 articles were identified, with 23 meeting the basic quality criteria across various study types.

Findings

• Study types included 6 epidemiological, 6 human experimental, 9 in vivo, and 2 in vitro studies.
• Most studies observed in vivo and in vitro exposure levels up to 4 W/kg, while human studies reported exposure much below ICNIRP guidelines typical of everyday WiFi scenarios.
• Symptoms and biological markers mostly showed no association with WiFi exposure.
• Sporadic findings lacked consistency in outcomes or exposure-response associations, indicating no substantial health risk from WiFi below regulatory limits.

Conclusion

The comprehensive review suggests that there is no conclusive evidence to link WiFi exposure, at levels below regulatory limits, to any detrimental health effects, echoing the need for ongoing observation in light of sporadic findings.