7 research outputs found
Extremely low frequency magnetic fields emitted by cell phones
Cell phones expose significant parts of the human brain and head to extremely low frequency (ELF) magnetic fields (MF) classified by the IARC as a 2B carcinogen. ELF MF was measured on the front and back sides of 15 cell phones in standby, speaking, and listening modes for 2G and 3G standards in two frequency bands, LF1: 5 Hz–200 Hz and LF2: 120 Hz—10 kHz. The highest MF value was 70.03 µT (RMS) in LF1 (2G, listening mode, front side) and 12.67 µT (RMS) in LF2 (2G, speaking mode, front side). The 3G cell phones consistently emitted a lower ELF MF compared to the 2G ones. The exposure to ELF MF was also simulated at various locations (head, thorax, pelvis) using the CST Studio Suite. The simulations revealed 8.45 µT, 7.5 µT, and 6.09 µT in the middle of the head (midbrain), 3.89 µT, 3.98 µT, and 2.83 µT for the middle of the thorax (heart), and 2.03 µT, 1.96 µT, and 1.56 µT in the middle of the pelvis (scrotum) for 10 Hz, 50 Hz, and 200 Hz, respectively. These values are comparable to those reported to induce biological and health effects, including those related to carcinogenesis. The results can be used in future studies concerning the ELF exposure or the combined effects of electromagnetic fields of radiofrequency and ELF
Sunbeds use – tanning pattern and UV protective behaviour of adults of the Turiec Region
Introduction: Recent worldwide researches dealing with artificial sources of ultraviolet radiation have noticed an increased incidence of skin cancer, conjunctivitis, or decreased immunity. Melanoma is the most serious disease that may be caused by sunbeds
Possible impact of automotive industry on the health of working population
Introduction: The automotive industry represents the most important industrial sector in Slovakia. Overall, there are more than 200,000 people employed in this sector. The work in automotive industry is monotonous and repetitive with excessive number of movements of upper extremities
Effects of high-energy ionizing radiation on organ systems in human medicine
The aim of our study was to investigate acute post-radiation changes after therapy with ionizing radiation
manifested by erythema or dry, squamous and scurfy skin on a breast. We observed 100 female patients suffering
from an early stage of breast carcinoma. The entering criteria were: age below 70 years, 100% of the
Karnofsky s Score, no tumor bilaterality, tumor in the stage of T1 or T2. The female patients had finished nonradical
surgery consisting from quadrantectomy and deviation of the axilla. Our results showed relationships
between the localization and the level of breast skin change as well as between adjuvant chemotherapy and the
level of breast skin change and, finally, between the size of the average dose of high energy radiation and the
level of breast skin change
Measurement of Low-level radiofrequency electromagnetic fields in the human environment
In recent years there has been an increase in development of electromagnetic (EM) technology in the telecommunication industry, resulting in an increase in human non-ionizing exposure. This fact has initiated a number of scientific studies on possible health effects of EM fields on human organism. Totally four representative microenvironments were investigated for RF EM fields distribution, namely: city center, residential area, rural area, and extra-village area. Each microenvironment was measured 20 times in accordance with the International Commission for Non-Ionizing Radiation Protection (ICNIRP) guidelines. The extra-village measurements were taken as the base values that reflect the E-field intensities with the lowest amplitudes. The statistical analysis revealed notable statistical significance (p < 0.001) in almost all measured frequency bands except the Wi-Fi where the p-values were less than 0.05 for the city center and residential area but not significant for rural area. The highest total E-field intensity was measured in the residential area (approximately 1.85 V/m). All measured values were below the legal limits of the Slovak Republic and ICNIRP safety guidelines. However, the ICNIRP safety limits were written in 1998 considering only the thermal effects of RF radiation. They were updated in 2009 without any changes in the limits and still recommend 27.5 – 61 V/m (2 – 10 W/m2) for the RF frequency band of 400–2,000 MHz. The BioInitiative Report of 2012 established the scientific benchmark for possible health risks as 30–60 μW/m2 (approximately 0.1 – 0.15 V/m). Thus, all measured values were above the scientifically derived limits