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EMF Measurement Surveys

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What factors does an EMF survey evaluate?

EMF is a broad term which can encompass a number of different electromagnetic parameters:

A full spectrum residential EMF survey should evaluate all these parameters. Although there is frequently a single item of particular concern, it is generally wise to check everything. Most problems are amenable to correction (with varying degrees of difficulty), so it's always wise to find out the full scope of what you're confronted with from the outset. A good EMF inspector can advise on remedial measures which have proven effective.

EMF Services no longer performs residential surveys. We are active only in the commercial sector. However, it is often possible to provide a referral to a qualified practitioner in your area. Unfortunately, there are a few companies who make a powerful initial impression, but behind the facade lies a dearth of technical knowledge and an ethical approach that borders on exploitation. You are welcome to call or email and we will help you find a true professional.

AC Magnetic Fields

This rest of this page will focus on the survey of AC magnetic fields from power lines or building electrical systems. If you are interested in an RF survey, that is discussed in great detail on another page of this site: RF Exposure Measurements.

Commercial AC magnetic field (EMF) surveys are usually conducted for one of these reasons:

EMF Survey Reports

The fully documented reports that we furnish our clients are an important part of each survey, and provide a point of reference for understanding the significance of measurement data. Each report references applicable exposure standards, precautionary exposure guidelines, and equipment interference thresholds. Also included are full prescriptive recommendations for correction of any anomalous conditions. The ultimate goal of our surveys is to place you in a position to make a responsible and informed decision about the area under evaluation, and to understand the options available for field remediation.

Survey Report Graphics

EMF Survey near Power Line
Plot of AC Magnetic Field near a Power Line

Office EMF Survey
Mapped Magnetic Field Survey of an Office

Timed Field Logging
7 Day Log of Magnetic Field Levels near a Power Transmission Line

Land Use Survey Plot
Multiple Measurement Paths across a Plot Under Evaluation


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