The International Radiation Protection Association (IRPA) recommends measuring the electric field and the magnetic field strength for evaluation of electromagnetic pollution from power lines. This paper, therefore practically examined the fields pollution from 132 kV and 330 kV lines in Bauchi/Gombe areas in Nigeria as a case study. The evaluation is based on the safety limits recommendations of International Committee on Non-Ionizing Radiation Protection (ICNIRP, 1998). In the measurement, Trifield metre was used to measure the fields in the vicinity of the lines with horizontal distance ranging from 0 – 450 m and vertical distance of 1.5 m. In the assessment, general public and occupational exposure levels from the power lines were sampled. For the general public, the highest magnetic flux density and electric field strength measured is 45 mG and 130 V/m which is 4.5 % and 2.6 % of the ICNIRP, 1998 exposure limit. The highest magnetic flux density and electric field strength measured is 100 mG and 130 V/m respectively which correspond to 2 % and 1.3 % of the ICNIRP, 1998 exposure limit for the occupational worker. The result showed that the measured fields are within safety limit.
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机译：国际辐射防护协会（IRPA）建议测量电场和磁场强度，以评估电源线产生的电磁污染。因此，本文以案例研究了尼日利亚Bauchi / Gombe地区132 kV和330 kV线路的现场污染。该评估基于国际非电离辐射防护委员会（ICNIRP，1998）的安全限值建议。在测量中，使用Trifield测量仪测量水平距离为0 – 450 m，垂直距离为1.5 m的线附近的场。在评估中，对来自电力线的一般公众和职业暴露水平进行了采样。对于公众而言，测得的最高磁通密度和电场强度为45 mG和130 V / m，这是ICNIRP 1998年暴露极限的4.5％和2.6％。测得的最高磁通密度和电场强度分别为100 mG和130 V / m，分别对应于ICNIRP（1998年）职业工人暴露极限的2％和1.3％。结果表明，实测场在安全范围内。
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