What EMF Level is Safe?

EMF Safety Levels ©2014 by Michael R Neuert (www.emfcenter.com or 707-578-1645)

pdf Download pdf – Information about EMFs and Safety Levels

“Possible Safety Levels To Consider”
3 Types of EMF →
(See attached page for more information)
Frequency (RF)
& Microwaves
Unit of Measurement in USA
AC Volts on
skin (VAC)
Lowest Level Linked to Cancer See Notes 5 & 6 1.0 (2.0) Note 5 unknown 0.2 Note 6
Average Level in Homes See Note 7 0.5 to 1.0 0.5 to 2.0 0.0001 to 0.5
Building Biology Severe Concern See Note 8 1.0 0.1 (sleep) 0.001
BioInitiative 2012 Report See Note 9 1.0 n/a 0.0003
General Public Precautionary Level See Note 10 0.5 1.0 (sleep 0.5) 0.0001
EMF Hypersensitivity Advice See Note 11 0.1 0.1 0.0001 or less
Official FCC Safety Limit See Note 12 n/a n/a 1000 Note 13
ICNIRP Guidelines for General Public See Note 13 833 n/a 1000 Note 13


5 The Lowest Level Linked to Cancer for Magnetic Fields:  The strongest evidence comes from the Swedish epidemiological study which reported increased leukemia for children at levels of 2.0 mG or more (Feychting & Ahlbom, 1993).  And a German study has linked exposures as low as 1.0 mG to reduced survival rates for children trying to recover from leukemia (Svendsen, Weikopf, Kaatsch & Schuz, 2007).

6 The Lowest Level Linked to Cancer for RF is from two Australian studies of radio/TV broadcast towers that found increased childhood leukemia at levels as low as 0.2 microwatts/cm².  The first (Hocking, 1996) found that leukemia death rates were more than double for the exposed children.  The second (Hocking, 2000) found that children trying to recover from leukemia were twice as likely to survive in a lower exposure home.

7 The Average Level in Homes for magnetic fields is derived from nationwide research studies and confirmed in my own testing experience.  The average levels for electric fields and RF fields are estimates from my own 22 years of professional testing in the San Francisco Bay area.

8 The Building Biology Severe Concern level is from the “Standard of Building Biology Testing Methods” published by the Institute for Baubiology.  (Go to www.hbelc.org/pdf/standards/sbm2008.pdf.)

9 The BioInitiative Report Recommendations are from the 2012 “BioInitiative Report: A Rationale for a Biologically-Based Public Exposure Standard for Electromagnetic Fields”.  (Go to www.bioinitiative.org.  For a detailed list of the RF studies reporting adverse health effects and the related RF exposure levels, go to www.bioinitiative.org/report/wp-content/uploads/pdfs/BioInitiativeReport-RF-Color-Charts.pdf.)

10 The General Public Precautionary Level is my own offering to healthy concerned clients based on my own understanding of the EMF research, and leaning towards caution.  For example for magnetic fields, to offer some margin of safety below the 1.0 mG linked to cancer, I might suggest a safety level of 0.5 mG.

11 The EMF Hypersensitivity Advisory is based upon anecdotal experience by EMF professionals like myself who often find it necessary to reduce exposures to these levels for sensitive individuals to report relief of symptoms.  However, there is no guarantee that these levels will be low enough for any particular person.

12 The FCC Safety Limit is the US “Maximum Permissible Exposure for the General Public” in FCC/OET Bulletin #56 (www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet56/oet56e4.pdf).  The ICNIRP Guidelines are from the commonly cited 1998 publication by the International Commission on Non-Ionizing Radiation Protection (www.icnirp.de/documents/emfgdl.pdf).

13 The official safety level depends on frequency.  Value shown is for frequencies of 1500 MHz and higher.