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      ANÁLISIS DIMENSIONAL DEL RIESGO PERCIBIDO POR LA EXPOSICIÓN DEL PÚBLICO A RADIACIONES ELECTROMAGNÉTICAS EMITIDAS POR ESTACIONES BASE DE TELEFONÍA MÓVIL Translated title: DIMENSIONAL ANALYSIS OF RISK PERCEIVED BECAUSE OF PUBLIC EXPOSURE TO ELECTROMAGNETIC RADIATIONS EMITTED BY MOBILE PHONE BASE STATIONS

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          Abstract

          La omnipresencia de estaciones base de telefonía móvil (EBTM) en los territorios urbanos ha dado lugar a que la población esté siendo expuesta a las radiaciones no ionizantes (RNI) emitidas por este tipo de fuentes radioeléctricas, dado que estas han sido ubicadas cerca de los sitios donde habitan y/o concurren las personas que se han considerado más susceptibles a las radiaciones electromagnéticas. Este escenario se ha caracterizado por las constantes preocupaciones de los ciudadanos y expertos en torno a los posibles efectos nocivos que se pueden presentar por la exposición a las RNI; no obstante, existe también un ambiente de desconocimiento e incertidumbre frente al tema, lo que ha generado que sea más complejo evaluar este potencial riesgo de origen antrópico tecnológico. Por lo tanto, se consideró importante analizar la respuesta social frente al riesgo generado por las radiaciones electromagnéticas emitidas por EBTM, con el fin de realizar un diagnóstico integral de esta situación. Para ello, se adaptó el método del paradigma psicométrico, y se realizó un análisis descriptivo y multivariado, los cuales permitieron conocer la percepción social frente al riesgo en la zona que se consideró más crítica, según los resultados que surgieron del diagnóstico de las áreas urbanas expuestas a las RNI emitidas por las EBTM, localizadas en el municipio de Cartago (Valle del Cauca). Los resultados de los análisis muestran que la percepción de cada individuo se basa en juicios intuitivos y factores socioculturales, que se traducen en actitudes y decisiones que se toman frente al riesgo evaluado, que al parecer, en el imaginario social no ha sido concebido en su totalidad como un potencial factor de riesgo. Es por esto que se puede concluir que los juicios sobre el riesgo evaluado difieren no solo individualmente sino también colectivamente.

          Translated abstract

          The omnipresence of mobile phone base stations (MPBS) in urban areas has resulted in the population being exposed to non-ionizing radiation (NIR) emitted by this type of radio sources, inasmuch as they have been located near places inhabited or frequently visited by people who are considered more susceptible to electromagnetic radiations. This scenario has been characterized by the constant concerns of citizens and experts about the possible adverse health effects that may occur from exposure to NIR. However, there is also an atmosphere of ignorance and uncertainty regarding the topic which makes it more difficult to evaluate this technological anthropogenic potential risk.. Therefore, it was considered important to analyze the social response in front of the risk generated by the electromagnetic radiation emitted by MPBS, in order to make an integral diagnosis of this situation. To do this, the psychometric paradigm method was adapted and a descriptive and multivariate analysis was carried out, which allowed knowing the social perception of the risk in the area that was considered more critical according to the results that emerged from the diagnosis of urban areas exposed to NIR emitted by MPBS located in the municipality of Cartago (Valle del Cauca). The results of the analyses show that the perception of each individual is based on intuitive judgments and sociocultural factors which result in attitudes and decisions made against the assessed risk which, apparently, in the social imaginary has not been conceived in its entirety as a potential risk factor. That is why, it can be concluded that judgments about the assessed risk differ not only individually but also collectively.

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          Subjective symptoms, sleeping problems, and cognitive performance in subjects living near mobile phone base stations.

          The erection of mobile telephone base stations in inhabited areas has raised concerns about possible health effects caused by emitted microwaves. In a cross-sectional study of randomly selected inhabitants living in urban and rural areas for more than one year near to 10 selected base stations, 365 subjects were investigated. Several cognitive tests were performed, and wellbeing and sleep quality were assessed. Field strength of high-frequency electromagnetic fields (HF-EMF) was measured in the bedrooms of 336 households. Total HF-EMF and exposure related to mobile telecommunication were far below recommended levels (max. 4.1 mW/m2). Distance from antennae was 24-600 m in the rural area and 20-250 m in the urban area. Average power density was slightly higher in the rural area (0.05 mW/m2) than in the urban area (0.02 mW/m2). Despite the influence of confounding variables, including fear of adverse effects from exposure to HF-EMF from the base station, there was a significant relation of some symptoms to measured power density; this was highest for headaches. Perceptual speed increased, while accuracy decreased insignificantly with increasing exposure levels. There was no significant effect on sleep quality. Despite very low exposure to HF-EMF, effects on wellbeing and performance cannot be ruled out, as shown by recently obtained experimental results; however, mechanisms of action at these low levels are unknown.
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            Neurobehavioral effects among inhabitants around mobile phone base stations.

            There is a general concern on the possible hazardous health effects of exposure to radiofrequency electromagnetic radiations (RFR) emitted from mobile phone base station antennas on the human nervous system. To identify the possible neurobehavioral deficits among inhabitants living nearby mobile phone base stations. A cross-sectional study was conducted on (85) inhabitants living nearby the first mobile phone station antenna in Menoufiya governorate, Egypt, 37 are living in a building under the station antenna while 48 opposite the station. A control group (80) participants were matched with the exposed for age, sex, occupation and educational level. All participants completed a structured questionnaire containing: personal, educational and medical histories; general and neurological examinations; neurobehavioral test battery (NBTB) [involving tests for visuomotor speed, problem solving, attention and memory]; in addition to Eysenck personality questionnaire (EPQ). The prevalence of neuropsychiatric complaints as headache (23.5%), memory changes (28.2%), dizziness (18.8%), tremors (9.4%), depressive symptoms (21.7%), and sleep disturbance (23.5%) were significantly higher among exposed inhabitants than controls: (10%), (5%), (5%), (0%), (8.8%) and (10%), respectively (P<0.05). The NBTB indicated that the exposed inhabitants exhibited a significantly lower performance than controls in one of the tests of attention and short-term auditory memory [Paced Auditory Serial Addition Test (PASAT)]. Also, the inhabitants opposite the station exhibited a lower performance in the problem solving test (block design) than those under the station. All inhabitants exhibited a better performance in the two tests of visuomotor speed (Digit symbol and Trailmaking B) and one test of attention (Trailmaking A) than controls. The last available measures of RFR emitted from the first mobile phone base station antennas in Menoufiya governorate were less than the allowable standard level. Inhabitants living nearby mobile phone base stations are at risk for developing neuropsychiatric problems and some changes in the performance of neurobehavioral functions either by facilitation or inhibition. So, revision of standard guidelines for public exposure to RER from mobile phone base station antennas and using of NBTB for regular assessment and early detection of biological effects among inhabitants around the stations are recommended.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                luaz
                Luna Azul
                Luna Azul
                Universidad de Caldas (Manizales )
                1909-2474
                December 2014
                : 0
                : 39
                : 105-123
                Affiliations
                [1 ] Universidad de Caldas Colombia
                [2 ] Universidad de Caldas Colombia
                [3 ] Universidad de Caldas Colombia
                Article
                S1909-24742014000200007
                48a77051-99d6-4709-af35-1e0315f2dd81

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Colombia

                Self URI (journal page): http://www.scielo.org.co/scielo.php?script=sci_serial&pid=1909-2474&lng=en
                Categories
                ENVIRONMENTAL STUDIES

                Environmental studies
                Social perception of risk,non-ionizing electromagnetic radiations,mobile phone base stations,psychometric paradigm method,Percepción social del riesgo,radiaciones electromagnéticas no ionizantes,estaciones base de telefonía móvil,método del paradigma psicométrico

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