Personal exposure from free Wi-Fi hotspots in downtown Mexico City

Authors: Ramirez-Vazquez R, Escobar I, Moreno JJH, Martínez-Plaza A, Maffey S, Arribas E

Year: 2023 Jul 20

Category: Environmental Science

Journal: Environ Sci Pollut Res Int

DOI: 10.1007/s11356-023-28839-5

URL: https://pubmed.ncbi.nlm.nih.gov/37474852/

Abstract

Overview

In an initiative started by the Government of Mexico City in 2019, residents were provided with access to free Wi-Fi hotspots. Over 13,000 points have been installed throughout the city to facilitate this connectivity.

Findings

This study reports on the measurements of personal exposure to Radiofrequency Electromagnetic Fields (RF-EMF) at various locations within Mexico City’s downtown area, specifically focusing on Plaza de la Constitución, commonly known as Zócalo. Measurements were taken by a researcher during a normal weekday, covering different times and microenvironments such as public streets, public transport including the subway, and residential settings.

  • Methodology: Using techniques such as the Geographic Information System (GIS) along with the Kriging method for interpolation, the researchers were able to visualize the spatial distribution of RF-EMF exposure.
  • Exposure Levels: The highest exposure was found at Zócalo with measurements of 326 μW/m2 and 2370 μW/m2 in different Wi-Fi bands, while street and home environments showed significantly lower exposure levels.

Conclusion

The study concludes that all recorded exposure levels are significantly below the international safety guidelines set by the International Commission on Non-Ionizing Radiation Protection. This highlights the critical need for ongoing monitoring and regulation to ensure public safety amidst increasing use of wireless technology.

Wi-Fi EMF Radiofrequency Mexico City Zócalo GIS Kriging interpolation
← Back to Stats