The measurement procedure in the SEMONT monitoring system Nikola Djuric & Dragan Kljajic & Karolina Kasas-Lazetic & Vera Bajovic Received: 9 April 2013 /Accepted: 23 October 2013 /Published online: 7 November 2013 # Springer Science+Business Media Dordrecht 2013 Abstract The measurement procedure of the open area in situ electric field strength is presented, acquiring the real field data for testing of the Serbian electromagnetic field monitoring network (SEMONT) and its Internet portal. The SEMONT monitoring system introduces an advanced approach of wireless sensor network utiliza- tion for the continuous supervision of overall and cu- mulative level of electromagnetic field over the ob- served area. The aim of the SEMONT system is to become a useful tool for the national and municipal agencies for the environmental protection, regarding the electromagnetic pollution monitoring and the expo- sure assessment of the general population. Considering the public concern on the potentially harmful effects of the long-term exposure to electromagnetic radiation, as well as the public transparency principle that is incor- porated into the Serbian law on non-ionizing radiation protection, the SEMONT monitoring system is designed for the long-term continuous monitoring, presenting real-time measurement results, and corresponding expo- sure assessment over the public Internet network. Keywords Electromagneticfieldmonitoring . Radiation exposure . Wireless sensor network Introduction The inevitable daily exposure of the general population to electromagnetic (EM) radiation has resulted in a necessity to keep the public informed on the real-time level of the EM fields and their distribution in areas related to human activities. The presence of various EM field sources, particularly in the range of the non- ionizing radiation, enforces the problem of safety both for the human health and the environment. In order to support the efforts that will decrease the public unawareness about artificial EM fields in the environment, the measurement campaigns of the EM emissions are performed. These measurements must meet three important requirements: must be objective, reliable, and continuous. The objective of the measurements is achieved when- ever a public and/or an independent body carries out measurements and manages their publication. Reliability derives from the compliance with national and/or international norms and standards regarding the measurement of EM fields and by an accredited calibra- tion of the measuring equipment. The reliable and con- tinuous measurements (24/365) provide the permanent monitoring of EM emissions and a maximum transpar- ency to the end users and the public. The Republic of Serbia has recently established the legal framework for the environmental protection by adopting a number of laws (Bajovic et al. 2011; Herceg et al. 2012). The Law on Non-ionizing Radiation Protection, which came into effect in 2009, is one of these laws. The most important provisions of Environ Monit Assess (2014) 186:1865–1874 DOI 10.1007/s10661-013-3500-0 N. Djuric (*) : D. Kljajic : K. Kasas-Lazetic : V. Bajovic Faculty of Technical Sciences, University of Novi Sad, Trg D. Obradovica 6, 21000 Novi Sad, Serbia e-mail: ndjuric@uns.ac.rs