1 Work Done at- CSIR-NEERI, Nagpur“Time Dependent Study of E-field and Indoor Meteorological Parameters in Individual Working Environments” Work Done at- CSIR-NEERI, Nagpur Supervised By P. A. Kokate, Scientist CSIR-NEERI Nagpur Presented By Amit Kumar Mishra ICWEES-2016
2 Electromagnetic wavesIntroduction What is EMF ? An electromagnetic field is a physical field produced by electrically charged objects. Electromagnetic fields are invisible lines of force exist in environment at different frequencies. Electromagnetic waves ICWEES-2016
3 Literature Survey Poor indoor air quality affect the human beings productivity. According to Cohen et al., 1998 presence of electromagnetic pollution can enhance the retention time of particle, which increase the alveolar burden of these harmful particles. The occupational health hazards of EMF in different microenvironment have been studied more consistently in developed countries. Jamieson et al., in 2007 find out the role of E-field on particles and charged molecules, aerosols etc. in different microenvironments. Findings are alarming for individual working environments. International organizations like ICNIRP, ACGIH, WHO, NIEHS and EPRI have initiated series of experiments and projects on wide scale of frequencies and species too. ICWEES-2016
4 Objectives To study the EMF and particulate matter (PM) accumulation in office environment. Comparative study of EMF levels during working and non-working hours in office environment. RF-Spectral measurements / dominant frequency analysis. To find out correlation between E-field and other indoor meteorological parameters like temperature and humidity. ICWEES-2016
5 Methodology Instrumentation Used ICNIRP Guidelines IEEE GuidelinesLocation map office environment Width- 7.45m Length-4.83m Instrumentation Used Portable electromagnetic field monitoring System Indoor temperature, humidity meter Laser distance meter Aerosol spectrometer SPM 2 Field Meter [E-field EMF] ICWEES-2016 GLM VF Laser Meter
6 Result and discussion Location Working Hour Non-working Hour EMF (V/m) TEMP (°C) RH (%) PM10 (µg/m3) RH (%) 1. 49.86×10-2 27.85 57.32 50.3 31.86×10-2 29.56 77.05 30.8 2. 54.02×10-2 27.80 57.62 55.2 32.02×10-2 29.60 74.23 35.5 3. 46.49×10-2 27.50 56.25 49.4 30.09×10-2 74.21 34.5 4. 35.51×10-2 56.24 39.1 31.51×10-2 74.17 5. 42.77×10-2 27.42 60.32 46.5 36.77×10-2 74.38 40.1 6. 45.19×10-2 27.41 58.07 45.1 39.19×10-2 74.18 41.8 7. 41.78×10-2 26.92 55.85 35.3 36.18×10-2 74.12 40.2 8. 39.43×10-2 29.34 52.09 41.1 33.43×10-2 74.96 34.6 9. 35.74×10-2 28.01 56.13 40.5 30.74×10-2 74.03 31.7 10. 31.31×10-2 27.20 53.08 35.1 28.31×10-2 29.50 74.27 30.2 11. 38.70×10-2 26.80 59.88 43.1 33.17×10-2 74.04 37.8 Table 1: The average values of EMF, Temp, RH and PM 10 on different location during working and non-working hours. ICWEES-2016
7 Contour of E-field EMF during working and non-working hour.EMF of working hour EMF of non-working hour Contour of E-field EMF during working and non-working hour. Contour representing the E-field EMF value in working as well as non-working hours. The strength of EMF was observed higher in the working as compared to the non-working. ICWEES-2016
8 Other parameter analysis:1.Spectrum Analysis : Spectrum analysis during working & non-working hours ICWEES-2016
9 2. Temperature and Humidity analysis:Average of temperature & humidity during working hours Average of temperature & humidity during non-working hours
10 Conclusion EMF level was higher in the working hours as compared to the non-working hours. Individual always spend more time in the indoor office environments and exposed to telecommunication band and other EMF radiating equipment. Mapping of EMF can be prominent option for evaluation & modeling. Further investigations are required to identify quantitative correlation between EMF and indoor meteorological parameters. Seasonal indoor studies of temperature, humidity, electromagnetic field & PM are essential to maintain the health of workers. ICWEES-2016
11 Future Prospective The localized electric field effect on health may be dominant on individuals. Hence regular assessment of indoor environment is equally import for healthy society of 21st century. Public awareness about electro-smog, heterogeneous research activities can only give the better solution for future generation. Continuous exposure monitoring similar to air quality, Noise etc., is very important due to increase in the electromagnetic exposure to urban population. ICWEES-2016
12 REFERENCES BioInitiative Report(August 31, 2007). “A Rationale for a Biologically-based Exposure Standard for Electromagnetic Radiation.” Genuis SJ. (2008). “Fielding a current idea: exploring the public health impact of electromagnetic radiation.” Public Health 122(2): International Telecommunication Union (2015). “Nomenclature of the frequency and wavelength bands used in telecommunications.” Recommendation ITU-R V Janssen NAH, Hartog JJ, Hoek G, Brunekreef B, Lanki T, Timonen KL, Pekkanen J. (2000).“Personal exposure to fine particulate matter in elderly subjects: relation between personal, indoor, and outdoor concentrations.” Air Waste 50:1133–1143. K.S. Jamieson, H.M. Ap Simona, S.S. Jamiesona, J.N.B. Bella, M.G. Yost (2007). “The effects of electric fields on charged molecules and particles in individual microenvironments.” Atmospheric Environment 41 (2007) 5224–5235. Kulkarni Girish, Gandhare WZ. (2014). “Living bodies exposed to natural and artificial extremely low frequency electromagnetic fields.” IJEECS. Volume 3, Issue 2. Pope III, C.A., Dockery, W.D.(2006). “Health effects of fine particulate air pollution:lines that connect.” J. Air & Waste Manag. Assoc. 56, 709e742. Z. Bako-Biro, P. Wargocki, C. J. Weschler, P. O. Fanger (2004). “Effects of pollution from personal computers on perceived air quality, SBS symptoms and productivity in offices.” Indoor Air 2004; 14: 178–187. ICWEES-2016
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14 Contour of E-field EMF during working and non-working hour.EMF of working hour EMF of non-working hour Contour of E-field EMF during working and non-working hour. Contour representing the E-field EMF value in working as well as non-working hours. The strength of EMF was observed higher in the working as compared to the non-working. ICWEES-2016