1. Adnan Lahham* and 
  2. Afifeh Sharabati

+Author Affiliations

  1. Center for Radiation Science and Technology, Al-Quds University, PO Box 20002, Jerusalem, Palestine
  1. *Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received March 16, 2013.
  • Revision received June 10, 2013.
  • Accepted June 19, 2013.

Abstract

This work presents data on the amount of radiation leakage from 117 microwave ovens in domestic and restaurant use in the West Bank, Palestine. The study of leakage is based on the measurements of radiation emissions from the oven in real-life conditions by using a frequency selective field strength measuring system. The power density from individual ovens was measured at a distance of 1 m and at the height of centre of door screen. The tested ovens were of different types, models with operating powers between 1000 and 1600 W and ages ranging from 1 month to >20 y, including 16 ovens with unknown ages. The amount of radiation leakage at a distance of 1 m was found to vary from 0.43 to 16.4 μW cm−2 with an average value equaling 3.64 μW cm−2. Leakages from all tested microwave ovens except for seven ovens (∼6 % of the total) were below 10 μW cm−2. The highest radiation leakage from any tested oven was ∼16.4 μW cm−2, and found in two cases only. In no case did the leakage exceed the limit of 1 mW cm−2 recommended by the ICNIRP for 2.45-GHz radiofrequency. This study confirms a linear correlation between the amount of leakage and both oven age and operating power, with a stronger dependence of leakage on age.

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