Modelling of daily radiofrequency electromagnetic field dose for a prospective adolescent cohort
Modelling of daily radiofrequency electromagnetic field dose for a prospective adolescent cohort
复制标题
前瞻性青少年队列的每日射频电磁场剂量建模
DOI：
10.1016/j.envint.2023.107737
复制
发表时间：
2023
影响因子：
11.8
通讯作者：
Eeftens M
中科院分区：
文献类型：
--
作者：
Eeftens M
介绍辐射电磁场源自各种无线通信源，这些无线通信源在身体附近或远处运行，这使得量化每日吸收剂量具有挑战性。在前瞻性队列SCAMP（认知，青少年和移动的电话研究）的框架内，我们的目的是表征RF-EMF剂量超过2年periodsMethodsThe SCAMP队列包括6605儿童从大伦敦，英国在基线（年龄12.1岁; 2014-2016年）和5194在随访（年龄14.2; 2016-2018年）。我们估计每日剂量的RF-EMF到八个组织，包括整个身体和整个大脑，使用剂量学算法的特定吸收率转移到体内。我们考虑了12种常见使用场景（如移动的电话呼叫或数据传输）的RF-EMF剂量。我们评估了社会人口因素（性别，种族，手机所有权和社会经济地位）之间的关联，和基线和follow-up.ResultsWhole全身剂量之间的变化估计平均为170毫焦/公斤/天在基线和178毫焦/公斤/天在后续。在考虑的8种组织中，右颞叶接受的日剂量最高（基线1150 mJ/kg/天，随访1520 mJ/kg/天）。头部和脑相关组织的估计日剂量[mJ/kg/天]在基线和随访之间增加，但全身和心脏保持稳定。基线和随访时估计的剂量显示，在完成两项评估的3384名儿童中相关性较低。亚洲种族（与白色相比）和拥有酒吧电话或没有电话（与智能手机相反）与估计的全身和全脑RF-EMF剂量较低相关，而黑人种族，中等/低社会经济地位（与高相比），及年龄增加（基线时）与较高的估计RF相关-EMF dose.ConclusionThis study describes the first longitudinal exposure assessment for children in a critical period of development.剂量估计值将用于SCAMP研究的进一步流行病学分析。
IntroductionRadiofrequency electromagnetic fields originate from a variety of wireless communication sources operating near and far from the body, making it challenging to quantify daily absorbed dose. In the framework of the prospective cohort SCAMP (Study of Cognition, Adolescents and Mobile Phones), we aimed to characterize RF-EMF dose over a 2-year period.MethodsThe SCAMP cohort included 6605 children from greater London, UK at baseline (age 12.1 years; 2014–2016) and 5194 at follow-up (age 14.2; 2016–2018). We estimated the daily dose of RF-EMF to eight tissues including the whole body and whole brain, using dosimetric algorithms for the specific absorption rate transfer into the body. We considered RF-EMF dose from 12 common usage scenarios such as mobile phone calls or data transmission. We evaluated the association between sociodemographic factors (gender, ethnicity, phone ownership and socio-economic status), and the dose change between baseline and follow-up.ResultsWhole body dose was estimated at an average of 170 mJ/kg/day at baseline and 178 mJ/kg/day at follow-up. Among the eight tissues considered, the right temporal lobe received the highest daily dose (baseline 1150 mJ/kg/day, follow-up 1520 mJ/kg/day). Estimated daily dose [mJ/kg/day] increased between baseline and follow-up for head and brain related tissues, but remained stable for the whole body and heart. Doses estimated at baseline and follow-up showed low correlation among the 3384 children who completed both assessments. Asian ethnicity (compared to white) and owning a bar phone or no phone (as opposed to a smartphone) were associated with lower estimated whole-body and whole-brain RF-EMF dose, while black ethnicity, a moderate/low socio-economic status (compared to high), and increasing age (at baseline) were associated with higher estimated RF-EMF dose.ConclusionThis study describes the first longitudinal exposure assessment for children in a critical period of development. Dose estimations will be used in further epidemiological analyses for the SCAMP study.