Measurement of Intermediate Frequency Magnetic Fields Generated by Household Induction Cookers for Epidemiological Studies and Development of an Exposure Estimation Model
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Design and Participants
2.2. Measurement Tools and Setting
2.3. Measurement Procedures
2.3.1. Measuring the Positional Relationship to the Exposure Source
2.3.2. Measuring the Magnetic Field of Induction Cookers in Households
2.4. Estimation Model Construction and Validation
3. Results
3.1. Distribution of Positional Relationship between the Participants and Induction Cooker
3.2. Characteristics of Induction Cookers and Distribution of Measured Magnetic Fields
3.3. Estimated Model Coefficients and Validation
4. Discussion
4.1. Position of Participants in Relation to the Induction Cooker
4.2. About Measurement of Magnetic Fields
4.3. About Estimation Models
4.4. Strengths of This Study
4.5. Limitations
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Disclaimer
Abbreviations
AIC | Akaike’s information criterion |
CI | confidence interval |
EAS | electronic article surveillance |
ELF | extremely low frequency |
EMF | electromagnetic fields |
F | F-value |
FFT | fast Fourier transform |
ICNIRP | International Commission on Non-Ionizing Radiation Protection |
IEC | International Electrotechnical Commission |
IF | intermediate frequency |
n | number of samples |
PF | power frequency |
r | correlation coefficient |
RF | radio frequency |
SD | standard deviation |
WHO | World Health Organization |
References
- Feychting, M.; Ahlbom, A. Childhood leukemia and residential exposure to weak extremely low frequency magnetic fields. Environ. Health Perspect. 1995, 103 (Suppl. S2), 59–62. [Google Scholar] [CrossRef] [PubMed]
- Feychting, M. Health effects of static magnetic fields--a review of the epidemiological evidence. Prog. Biophys. Mol. Biol. 2005, 87, 241–246. [Google Scholar] [CrossRef] [PubMed]
- Saito, T.; Nitta, H.; Kubo, O.; Yamamoto, S.; Yamaguchi, N.; Akiba, S.; Honda, Y.; Hagihara, J.; Isaka, K.; Ojima, T.; et al. Power-frequency magnetic fields and childhood brain tumors: A case-control study in Japan. J. Epidemiol. 2010, 20, 54–61. [Google Scholar] [CrossRef] [PubMed]
- Wang, Z.; Fei, Y.; Liu, H.; Zheng, S.; Ding, Z.; Jin, W.; Pan, Y.; Chen, Z.; Wang, L.; Chen, G.; et al. Effects of electromagnetic fields exposure on plasma hormonal and inflammatory pathway biomarkers in male workers of a power plant. Int. Arch. Occup. Environ. Health 2016, 89, 33–42. [Google Scholar] [CrossRef] [PubMed]
- Kunt, H.; Şentürk, İ.; Gönül, Y.; Korkmaz, M.; Ahsen, A.; Hazman, Ö.; Bal, A.; Genç, A.; Songur, A. Effects of electromagnetic radiation exposure on bone mineral density, thyroid, and oxidative stress index in electrical workers. Onco Targets Ther. 2016, 9, 745–754. [Google Scholar] [CrossRef] [PubMed]
- Turner, M.C.; Benke, G.; Bowman, J.D.; Figuerola, J.; Fleming, S.; Hours, M.; Kincl, L.; Krewski, D.; McLean, D.; Parent, M.E.; et al. Occupational exposure to extremely low-frequency magnetic fields and brain tumor risks in the INTEROCC study. Cancer Epidemiol. Biomark. Prev. 2014, 23, 1863–1872. [Google Scholar] [CrossRef]
- Migault, L.; Garlantézec, R.; Piel, C.; Marchand-Martin, L.; Orazio, S.; Cheminat, M.; Zaros, C.; Carles, C.; Cardis, E.; Ancel, P.Y.; et al. Maternal cumulative exposure to extremely low frequency electromagnetic fields, prematurity and small for gestational age: A pooled analysis of two birth cohorts. Occup. Environ. Med. 2020, 77, 22–31. [Google Scholar] [CrossRef]
- IARC (International Agency for Research on Cancer). Non-Ionizing Radiation, Part 1: Static and Extremely Low Frequency (ELF) Electric and Magnetic Fields. IARC Monograph on the Evaluation of Carcinogenic Risks to Humans; IARC: Lyon, France, 2002; Volume 80, Available online: http://monographs.iarc.fr/ENG/Classification/crthall.php (accessed on 18 August 2022).
- Furubayashi, T.; Ushiyama, A.; Terao, Y.; Mizuno, Y.; Shirasawa, K.; Pongpaibool, P.; Simba, A.Y.; Wake, K.; Nishikawa, M.; Miyawaki, K.; et al. Effects of short-term W-CDMA mobile phone base station exposure on women with or without mobile phone related symptoms. Bioelectromagnetics 2009, 30, 100–113. [Google Scholar] [CrossRef]
- Nakatani-Enomoto, S.; Furubayashi, T.; Ushiyama, A.; Groiss, S.J.; Ueshima, K.; Sokejima, S.; Simba, A.Y.; Wake, K.; Watanabe, S.; Nishikawa, M.; et al. Effects of electromagnetic fields emitted from W-CDMA-like mobile phones on sleep in humans. Bioelectromagnetics 2013, 34, 589–598. [Google Scholar] [CrossRef]
- Plets, D.; Verloock, L.; Van Den Bossche, M.; Tanghe, E.; Joseph, W.; Martens, L. Exposure assessment of microwave ovens and impact on total exposure in WLANs. Radiat. Prot. Dosim. 2016, 168, 212–222. [Google Scholar] [CrossRef] [Green Version]
- Fei, X.; Li, S.; Gao, S.; Wei, L.; Wang, L. Application safety evaluation of the radio frequency identification tag under magnetic resonance imaging. Biomed. Eng. Online 2014, 13, 129. [Google Scholar] [CrossRef] [PubMed]
- Tettamanti, G.; Auvinen, A.; Åkerstedt, T.; Kojo, K.; Ahlbom, A.; Heinävaara, S.; Elliott, P.; Schüz, J.; Deltour, I.; Kromhout, H.; et al. Long-term effect of mobile phone use on sleep quality: Results from the cohort study of mobile phone use and health (COSMOS). Environ. Int. 2020, 140, 105687. [Google Scholar] [CrossRef] [PubMed]
- IARC (International Agency for Research on Cancer). Non-Ionizing Radiation, Part 2: Radiofrequency Electromagnetic Fields. Electric and Magnetic Fields. IARC Monograph on the Evaluation of Carcinogenic Risks to Humans; IARC: Lyon, France, 2013; Volume 102, Available online: https://monographs.iarc.fr/ENG/Monographs/vol102/mono102.pdf (accessed on 18 August 2022).
- Fujita, A.; Hirota, I.; Kawahara, Y.; Omori, H. Development and evaluation of intermediate frequency magnetic field exposure system for studies of in vitro biological effects. Bioelectromagnetics 2007, 28, 538–545. [Google Scholar] [CrossRef] [PubMed]
- Nishimura, I.; Doi, Y.; Imai, N.; Kawabe, M.; Mera, Y.; Shiina, T. Carcinogenicity of intermediate frequency magnetic field in Tg.rasH2 mice. Bioelectromagnetics 2019, 40, 160–169. [Google Scholar] [CrossRef]
- Kumari, K.; Capstick, M.; Cassara, A.M.; Herrala, M.; Koivisto, H.; Naarala, J.; Tanila, H.; Viluksela, M.; Juutilainen, J. Effects of intermediate frequency magnetic fields on male fertility indicators in mice. Environ. Res. 2017, 157, 64–70. [Google Scholar] [CrossRef]
- Kumari, K.; Koivisto, H.; Capstick, M.; Naarala, J.; Viluksela, M.; Tanila, H.; Juutilainen, J. Behavioural phenotypes in mice after prenatal and early postnatal exposure to intermediate frequency magnetic fields. Environ. Res. 2018, 162, 27–34. [Google Scholar] [CrossRef]
- Nishimura, I.; Oshima, A.; Shibuya, K.; Negishi, T. Lack of teratological effects in rats exposed to 20 or 60 kHz magnetic fields. Birth Defects Res. Part B Dev. Reprod. Toxicol. 2011, 92, 469–477. [Google Scholar] [CrossRef]
- Shwe, T.T.W.; Ohtani, S.; Ushiyama, A.; Kunugita, N. Early Exposure to Intermediate-Frequency Magnetic FieldsAlters Brain Biomarkers without Histopathological Changes in Adult Mice. Int. J. Environ. Res. Public Health 2015, 12, 4406–4421. [Google Scholar] [CrossRef]
- Lerchl, A.; Drees Née Grote, K.; Gronau, I.; Fischer, D.; Bauch, J.; Hoppe, A. Effects of Long-Term Exposure of Intermediate Frequency Magnetic Fields (20 kHz, 360 µT) on the Development, Pathological Findings, and Behavior of Female Mice. Bioelectromagnetics 2021, 42, 309–316. [Google Scholar] [CrossRef]
- Ohtani, S.; Ushiyama, A.; Wada, K.; Suzuki, Y.; Ishii, K.; Hattori, K. No evidence for genotoxicity in mice due to exposure to intermediate-frequency magnetic fields used for wireless power-transfer systems. Mutat. Res. Genet. Toxicol. Environ. Mutagen. 2021, 863–864, 503310. [Google Scholar] [CrossRef]
- Herrala, M.; Naarala, J.; Juutilainen, J. Assessment of induced genomic instability in rat primary astrocytes exposed to intermediate frequency magnetic fields. Environ. Res. 2019, 173, 112–116. [Google Scholar] [CrossRef]
- Aerts, S.; Calderon, C.; Valič, B.; Maslanyj, M.; Addison, D.; Mee, T.; Goiceanu, C.; Verloock, L.; van den Bossche, M.; Gajšek, P.; et al. Measurements of intermediate115 requency electric and magnetic fields in households. Environ. Res. 2017, 154, 160–170. [Google Scholar] [CrossRef] [PubMed]
- Gallastegia, M.; Jiménez-Zabala, A.; Santa-Marina, L.; Aurrekoetxea, J.J.; Ayerdic, M.; Ibarluzea, J.; Kromhoute, H.; Gonzálezf, J.; Husse, A. Exposure to extremely low and intermediate-frequency magnetic and electric fields among children from the INMA-Gipuzkoa cohort. Environ. Res. 2017, 157, 190–197. [Google Scholar] [CrossRef] [PubMed]
- Yamazaki, K.; Kawamoto, T.; Fujinami, H.; Shigemitsu, T. Equivalent Dipole Moment Method to Characterize Magnetic Fields Generated by Electric Appliances: Extension to Intermediate Frequencies of Up to 100 kHz. IEEE Trans. Electromagn. Compat. 2004, 46, 115–120. [Google Scholar] [CrossRef]
- International Electrotechnical Commission (IEC). IEC 62233:2005, Measurement Methods for Electromagnetic Fields of Household Appliances and Similar Apparatus with Regard to Human Exposure. Available online: https://webstore.iec.ch/publication/6618 (accessed on 7 September 2022).
- See, K.Y.; Bullo, M.; Dughiero, F.; Sieni, E. Practical papers, articles and application notes. IEEE Electromagn. Compat. Mag. 2013, 2, 49–58. [Google Scholar] [CrossRef]
- Christ, A.; Guldimann, R.; Bühlmann, B.; Zefferer, M.; Bakker, J.F.; van Rhoon, G.C.; Kuster, N. Exposure of the human body to professional and domestic induction cooktops compared to the basic restrictions. Bioelectromagnetics 2012, 33, 695–705. [Google Scholar] [CrossRef]
- Bodewein, L.; Schmiedchen, K.; Dechent, D.; Stunder, D.; Graefrath, D.; Winter, L.; Kraus, T.; Driessen, S. Systematic review on the biological effects of electric, magnetic and electromagnetic fields in the intermediate frequency range (300 Hz to 1 MHz). Environ. Res. 2019, 171, 247–259. [Google Scholar] [CrossRef]
- Pan, D.; Liu, S.; Huang, D.; Zeng, X.; Zhang, Y.; Pang, Q.; Wu, H.; Tan, H.J.J.; Liang, J.; Sheng, Y.; et al. Effects of household environmental exposure and ventilation in association with adverse birth outcomes: A prospective cohort study in rural China. Sci. Total Environ. 2022, 822, 153519. [Google Scholar] [CrossRef]
- Zhao, D.; Guo, L.; Zhang, R.; Zhu, Q.; Wang, H.; Liu, R.; Yan, H.; Dang, S. Risk of congenital heart disease due to exposure to common electrical appliances during early pregnancy: A case-control study. Environ. Sci. Pollut. Res. Int. 2021, 28, 4739–4748. [Google Scholar] [CrossRef]
Prove Position (cm) | Measured Magnetic Field (μT) | ||||||||
---|---|---|---|---|---|---|---|---|---|
h | d | n | Mean (SD) | GM (GSD) | 1st Qu. | Median | 3rd Qu. | ||
20 | 0 | 45 | 1.93 | (1.82) | 1.36 | (2.29) | 0.65 | 1.22 | 2.33 |
10 | 45 | 0.81 | (0.61) | 0.63 | (2.00) | 0.39 | 0.63 | 1.04 | |
20 | 45 | 0.36 | (0.23) | 0.31 | (1.77) | 0.21 | 0.33 | 0.412 | |
30 | 45 | 0.20 | (0.12) | 0.17 | (1.66) | 0.13 | 0.17 | 0.24 | |
10 | 0 | 45 | 2.88 | (2.18) | 2.22 | (2.10) | 1.41 | 2.03 | 3.83 |
10 | 45 | 0.81 | (0.45) | 0.71 | (1.71) | 0.55 | 0.69 | 0.99 | |
20 | 45 | 0.35 | (0.19) | 0.31 | (1.70) | 0.22 | 0.31 | 0.445 | |
30 | 45 | 0.20 | (0.10) | 0.17 | (1.64) | 0.12 | 0.19 | 0.25 | |
0 | 0 | 45 | 3.86 | (3.31) | 2.88 | (2.24) | 1.77 | 2.96 | 5.11 |
10 | 45 | 1.06 | (0.70) | 0.84 | (2.07) | 0.59 | 0.94 | 1.39 | |
20 | 45 | 0.43 | (0.25) | 0.36 | (1.96) | 0.25 | 0.41 | 0.60 | |
30 | 45 | 0.23 | (0.13) | 0.19 | (1.87) | 0.11 | 0.21 | 0.31 | |
−10 | 0 | 45 | 2.154 | (2.010) | 1.39 | (2.84) | 0.74 | 1.64 | 2.55 |
10 | 45 | 0.917 | (0.746) | 0.68 | (2.25) | 0.36 | 0.80 | 1.15 | |
20 | 45 | 0.436 | (0.275) | 0.35 | (1.99) | 0.20 | 0.38 | 0.63 | |
30 | 45 | 0.226 | (0.144) | 0.19 | (1.87) | 0.11 | 0.21 | 0.32 | |
−20 | 0 | 45 | 2.092 | (2.059) | 1.20 | (3.27) | 0.46 | 1.52 | 2.93 |
10 | 45 | 0.732 | (0.602) | 0.52 | (2.41) | 0.23 | 0.59 | 1.05 | |
20 | 45 | 0.358 | (0.270) | 0.276 | (2.09) | 0.15 | 0.29 | 0.53 | |
30 | 45 | 0.198 | (0.132) | 0.162 | (1.90) | 0.10 | 0.18 | 0.26 |
Parameter | Value | t-Value | p-Value | AIC | |
---|---|---|---|---|---|
Model 1 | (Current term) | 10,501.2 | 3.60 | <0.001 | 2726.3 |
(Cookware diameter adjustment term) | −28.8 | −6.88 | <0.001 | ||
(Intercept adjustment term) | 0.173 | 0.875 | 0.382 | ||
Model 2 | (Current term) | 12,160.7 | 4.07 | <0.001 | 2770.5 |
(Intercept adjustment term) | −0.216 | −1.11 | 0.266 | ||
Model 3 | (Cookware diameter adjustment term) | −30.0 | −7.16 | <0.001 | 2737.2 |
(Intercept adjustment term) | 0.878 | 19.8 | <0.001 | ||
Model 4 | (Intercept adjustment term) | 0.573 | 36.6 | <0.001 | 2785.1 |
Correlation Coefficient | (95% CI) | p-Value | ||
---|---|---|---|---|
Model 1 | 0.500 | (0.171) | (0.730) | <0.001 |
Model 2 | 0.472 | (0.134) | (0.711) | <0.001 |
Model 3 | 0.521 | (0.198) | (0.742) | <0.001 |
Model 4 | 0.540 | (0.223) | (0.754) | <0.001 |
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Share and Cite
Kitajima, T.; Schüz, J.; Morita, A.; Ikeda, W.; Tanaka, H.; Togawa, K.; Gabazza, E.C.; Taki, M.; Toriyabe, K.; Ikeda, T.; et al. Measurement of Intermediate Frequency Magnetic Fields Generated by Household Induction Cookers for Epidemiological Studies and Development of an Exposure Estimation Model. Int. J. Environ. Res. Public Health 2022, 19, 11912. https://doi.org/10.3390/ijerph191911912
Kitajima T, Schüz J, Morita A, Ikeda W, Tanaka H, Togawa K, Gabazza EC, Taki M, Toriyabe K, Ikeda T, et al. Measurement of Intermediate Frequency Magnetic Fields Generated by Household Induction Cookers for Epidemiological Studies and Development of an Exposure Estimation Model. International Journal of Environmental Research and Public Health. 2022; 19(19):11912. https://doi.org/10.3390/ijerph191911912
Chicago/Turabian StyleKitajima, Takumi, Joachim Schüz, Akemi Morita, Wakaha Ikeda, Hirokazu Tanaka, Kayo Togawa, Esteban C. Gabazza, Masao Taki, Kuniaki Toriyabe, Tomoaki Ikeda, and et al. 2022. "Measurement of Intermediate Frequency Magnetic Fields Generated by Household Induction Cookers for Epidemiological Studies and Development of an Exposure Estimation Model" International Journal of Environmental Research and Public Health 19, no. 19: 11912. https://doi.org/10.3390/ijerph191911912