Exposure to radiofrequency electromagnetic fields: Comparison of exposimeters with a novel body-worn distributed meter
نویسندگان
چکیده
• Personal exposimeters are often used for RF-EMF measurements, but have shortcomings. We developed a novel on-body calibrated device with distributed sensors (BWDM). BWDM is designed to minimize body shielding and use frequency specific antennas. measured exposures in parallel three types of devices. Exposimeters provide slightly lower rank averaged accurately. Exposure radiofrequency electromagnetic fields (RF-EMF) personal exposimeters, the accuracy measurements can be hampered as carrying devices may result shielding. Further, compact design compromise selectivity sensor. The aim this study was compare obtained using multi-band body-worn distributed-exposimeter (BWDM) two commercially available (ExpoM-RF EmeSpy 200) under real-life conditions. power density 10 bands (800, 900, 1800, 2100, 2600 MHz, DECT 1900 WiFi 2.4 GHz; separate uplink/downlink 1800 2100 MHz); 20 antennas integrated vest placed on diametrically opposite locations body, body-shielding. exposure data were collected from several microenvironments (e.g. shopping areas, train stations, outdoor rural/ urban residential environments, etc.) by walking around pre-defined areas/routes Belgium, Spain, France, Netherlands Switzerland. Measurements taken every 1–4 s an ExpoM-RF 200 exposimeter. calculated medians interquartile ranges (IQRs) compared difference, ratios correlations geometric mean levels per microenvironment BWDM. Across 267 microenvironments, IQR total 0.13 (0.05–0.33) mW/m 2 . Difference: minus −0.011 (−0.049 0.0095) −0.056 (−0.14 −0.017) 200; (exposimeter/BWDM) had 0.79 (0.55–1.1) 0.29 (0.22–0.38) 200. Spearman 0.93 vs 0.96 Results indicate that worn somewhat conducted BWDM, line effects Ranking showed high correspondence between different types. Our results informative interpretation existing epidemiological research results.
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ژورنال
عنوان ژورنال: Environment International
سال: 2021
ISSN: ['0160-4120', '1873-6750']
DOI: https://doi.org/10.1016/j.envint.2021.106711