AI Article Synopsis
- The study investigates changes in personal RF-EMF exposure in Australia from 2015-2016 to 2022, focusing on how advancements in telecommunication technology may affect exposure levels over time.
- Data was collected from 18 different micro-environments in Melbourne, and simultaneous quantile regression was used to analyze the differences in median and overall exposure trends among various sources.
- Results indicate that total RF-EMF exposure levels remained relatively stable, but there was a noticeable increase in exposure from mobile downlink, with five out of seven micro-environments showing rising exposure trends at the follow-up.
Article Abstract
Background: A knowledge gap exists regarding longitudinal assessment of personal radio-frequency electromagnetic field (RF-EMF) exposures globally. It is unclear how the change in telecommunication technology over the years translates to change in RF-EMF exposure. This study aims to evaluate longitudinal trends of micro-environmental personal RF-EMF exposures in Australia.
Methods: The study utilised baseline (2015-16) and follow-up (2022) data on personal RF-EMF exposure (88 MHz-6 GHz) measured across 18 micro-environments in Melbourne. Simultaneous quantile regression analysis was conducted to compare exposure data distribution percentiles, particularly median (P), upper extreme value (P) and overall exposure trends. RF-EMF exposures were compared across six exposure source types: mobile downlink, mobile uplink, broadcast, 5G-New Radio, Others and Total (of the aforementioned sources). Frequency-specific exposures measured at baseline and follow-up were compared. Total exposure across different groups of micro-environment types were also compared.
Results: For all micro-environmental data, total (median and P) exposure levels did not significantly change at follow-up. Overall exposure trend of total exposure increased at follow-up. Mobile downlink contributed the highest exposure among all sources showing an increase in median exposure and overall exposure trend. Of seven micro-environment types, five of them showed total exposure levels (median and P) and overall exposure trend increased at follow-up.
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| http://dx.doi.org/10.1016/j.envres.2024.118629 | DOI Listing |
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