Gryz Krzysztof, Zradziński Patryk, Karpowicz Jolanta, Leszko Wiesław
Pracownia Zagrozeń Elektromagnetycznych, Centralny Instytut Ochrony Pracy - Państwowy Instytut Badawczy, Warszawa, Poland.
Med Pr. 2013;64(5):671-80. doi: 10.13075/mp.5893.2013.0069.
The activities of rescue and uniformed services require the use of wireless communication devices, such as portable radiophones. Assessment of workers' exposure to electromagnetic fields emitted by radiophones is important in view of occupational safety and health (OSH), legislation requirements and reports on possible adverse health effects in users of devices emitting radiofrequency electromagnetic field.
In this study 50 portable radiophones of conventional and trunked communication systems were investigated. The assessment of electromagnetic hazards to users involved unperturbed electromagnetic field measurements near radiophones' antennas.
The electric field strength corresponding to the occupational exposure level (fields of so-called safety zones established by OSH legislation in Poland) was measured at a distance of 45-65 cm from the portable radiophones antennas of conventional system and 75-95 cm from antennas of trunked system radiophones, depending on their type and mode of work. The assessment was based on the averaged results of series of measurements. The electric field strength exceeding action levels defined by Directive 2013/35/EU was found up to 15 cm from radiophone antennas of conventional system and up to 10 cm from the antennas of trunked system radiophones.
Taking into account the range of safety zones and the use of portable radiophones near the body, their users should be classified into the group of workers occupationally exposed to electromagnetic fields. Electromagnetic field measurement results and typical conditions of using portable radiophones justify the need for additional assessment of electromagnetic hazards--the analysis of compliance with relevant exposure limit values provided by Directive 2013/35/EU.
救援和制服服务活动需要使用无线通信设备,如便携式无线电话。鉴于职业安全与健康(OSH)、立法要求以及关于发射射频电磁场设备使用者可能产生的不良健康影响的报告,评估工人接触无线电话发射的电磁场情况非常重要。
本研究调查了50部常规通信系统和集群通信系统的便携式无线电话。对使用者的电磁危害评估包括在无线电话天线附近进行无干扰电磁场测量。
根据便携式无线电话的类型和工作模式,在距离常规系统便携式无线电话天线45 - 65厘米处以及距离集群系统无线电话天线75 - 95厘米处,测量到了与职业暴露水平相对应的电场强度(波兰OSH立法规定的所谓安全区的场强)。该评估基于一系列测量的平均结果。在距离常规系统无线电话天线15厘米以内以及距离集群系统无线电话天线10厘米以内,发现电场强度超过了2013/35/EU指令规定的行动水平。
考虑到安全区范围以及便携式无线电话在身体附近的使用情况,其使用者应被归类为职业性接触电磁场的工人群体。电磁场测量结果以及便携式无线电话的典型使用条件证明有必要对电磁危害进行额外评估——分析是否符合2013/35/EU指令规定的相关暴露限值。