Hybrid EMF Risk Still Uncertain
Published April 27, 2008

Field-strength detectors like the TriField meter are widely available, but may not produce meaningful measurements for hybrid owners concerned about electromagnetic fields.
Soon after the introduction of gas-electric vehicles in 2000, hybrid shoppers and drivers started worrying about the potential negative health impacts from electromagnetic fields (EMFs). The flow of electrical current in a hybrid produces magnetic fields. EMFs have been associated with serious health matters, especially when coming from high-power lines.
For more than two years, HybridCars.com editors and site visitors have tried to pin down some definitive answers—without success:
The New York Times took its own stab on April 27, 2008, and came up with a number of contradictory conclusions depending on whom you talk to.
EMFs Are a Legitimate Concern
The National Institutes of Health and the National Cancer Institute say that there are potential hazards of long-term exposure to strong electromagnetic fields—with specific cancer risks for people living near high-voltage utility lines. EMFs are all around us—produced by everything from cellphones to electric blankets.
Home Tests Can Produce High, But Inconclusive, Readings
A small number of hybrid drivers became ill after buying a hybrid. Complaints have ranged from high blood pressure to falling asleep behind the wheel. Those hybrid owners, and others, have used field-strength testing instruments and found EMFs at levels exceeding various international standards for safety. However, those standards are uneven and vary in result based on the testing equipment and procedure.
Carmakers Say No Problem
Not surprisingly, hybrid-producing car companies downplay the risks. A spokesman for Honda, Chris Martin, points to the lack of a federally mandated standard for EMFs in cars, and says that most people use the wrong devices to test. In a company statement, Toyota said that hybrid vehicles produce the same low levels as conventional gasoline vehicles, and therefore "there are no additional health risks to drivers, passengers or bystanders.”
The Issue is Unresolved
The New York Times quoted Jim Kliesch, a senior engineer for the clean vehicles program at the Union of Concerned Scientists, "It would be a mistake to jump to conclusions about hybrid EMF dangers, as well as a mistake to outright dismiss the concern. Additional research would improve our understanding of the issue.”
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This looks like a story planted by big oil to discourage buying cars that run without oil.
Let's look at the article: "the flow of electricity IN HYBRIDS causes magnetic fields." But the flow of electricity causes magnetic fields, so why not say the flow of electricity in your home and place of employment causes magnetic fields? Why single out hybrids?
"A small number of drivers have become ill after buying a hybrid." But is the number any different than the number of drivers that become ill after buying a non-hybrid? People suffer from high blood pressure without driving hybrids, and people have been falling asleep behind the wheel without driving hybrids.
"the levels exceed various international standards." What are the published standards and what are the measurements? No information provided.
"not surprisingly, hybrid-producing car companies down play the risks." The implication here is that those claiming the risks are valid have no economic ax to grind, but those who say the risks are minimal, have an economic ax to grind. This is an ad homenim argument, a logical fallacy, shooting the messenger instead of addressing the message.
"additional research would improve our understand of the issue." Well duh, I'm all for understanding those little signs that say pumping gas risks getting cancer. Coupling a mother-hood statement, like getting better information is a good thing, with an unverified assertion of danger is simply an effort to gain credibility by association. Propaganda folks, pure and simple.
I'm not an engineer, but I was under the understanding that EMF is produced by alternating current. This is why we don't see transformers running direct current, there is just no field to tap. (at least not one which is constantly collapsing and regenerating) I have a shunt meter I use now and then to measure amperage in an AC line, it won't work on a DC circuit. I wonder if some of these handheld devices are really meant for AC only, and give erroneous readings when placed in a hybrid.
At any rate, if this was something I was worried about (which it is not). I would worry more about the constant AC running through my home and workplace, to which I am exposed for much longer periods, than the DC field in my car.
Interesting that there is nothing about gasoline. Nothing about the carcinogenic fumes, nothing about it being a deadly poison, nothing about the risk of injury from fire or explosion, nothing about the adverse health effects of the pollutants generated when it's burned.
I gotta agree. Propoganda.
If people are seriously worried about EMFs from their hybrid car, they should immediately take the following steps:
1) Remove the batteries from all portable electronic devices in their homes, particularly radio transmitters like wireless devices;
2) Find the master breaker on their home's electrical service panel and move it to the "off" position;
3) Move themselves, by foot obviously, to a place with no EMF.
Like someone else mentioned, while I would certainly be happy to see research on the subject, I'm not sure there's anything to get concerned about now that's hybrid-specific. Every wall in my home and office, including the ones in my bedroom, have electric wires running through them. I also seriously doubt a hybrid car produces anywhere near the amount of electricity as "high voltage utility lines".
I'd be happy to see more research on the subject of EMF and health, but my first concern would be with the places that would seem to use the most electricity and where I spent most of my time - my house and my office.
The amount of VOCs a car contains from all the plastic parts in it (and on a nice hot summer day) that leach out are far more harmful.
I don't know what it was about a friend's Audi TT but when I got into that car, I was vomiting my guts out half an hour later...the smell of whatever it was in that brand new car completely overwhelmed me...the adhesives, etc...I don't know...and I know it had to do with the car because THAT was what affected me.
there is 5 minutes of my life I'll never get back!
Probably more EMF signals coming from your average cubical computer workstation than your average hybrid ....
People who drives a hybrid should still conserve fuel. If this is true, then the time people spend in a hybrid EMF environment should be at lower health risks than from having laptop on their laps, or the hair dryer pointing at their heads.
EMF have been ACCUSED of causing serious health problems.
They haven't been associated nor linked by reputable research.
I can accuse anyone or anything of anything. Whether it has any substance is something else again.
This is quite easy to resolve. A faraday cage around the high vlotage components will stop the magnetic field cold. A faraday cage could be a simple copper screen tied to ground. It is simple and cheap.
EMF (electromagnetic fields) are LIGHT! That's right, all light is an electromagnetic field caused by the acceleration of some charge. I am certain that these batteries do not cause any high energy EMF, such as UV or X-rays, so do not worry. This kind of crap makes me (a theoretical chemist) disgusted. What's next, are hybrids increasing the amount of gravitational fields in some dangerous way? Heck, when all else fails, use basic science to scare the average American.
I was wondering about the Faraday cage myself. Seems like an easy fix that would be fairly inexpensive to implement, if a person was worried.
This DOES sound like propaganda from those that profit from more gas usage though.
Not all EMF are light. It depends on the frequency of the wave. Radio waves have low frequency and light waves have high frequency and both are electromagnetic waves.
If you are not concerned about EMF, please feel free to take the shielding off your microwave oven door and stand in front while using it.
BTW, microwave oven concept was discovered accidentally while working on a radar system. It melted the chocolate in his front pocket.
I'm not saying EMF if like being inside of a microwave oven while it is operating, but long term low level exposures cannot and should not be ignored.
Not being an EE, I can't say definitively one way or the other. I do know that, while living in Tennesee, I observed a field of corn that had achieved a height of about 7-8 feet, EXCEPT under the high-voltage transmission lines. The corn under the lines was about 14-15 feet high. I'm also not a doctor, but isn't cancer a similar phenomenon? I'm on this sight to glean more information about hybrids. Maybe I'll look harder at bio-diesel.
Some previous posters said there was no reputable research suggesting the dangers of EMF. They were quite misinformed. Dr Robert Becker has done extensive research on the subject and was a pioneer in the use of the medical applications for electricity in bone fracture healing and limb regeneration. In his studies, and several in Europe, it has been found that EMF, especially low level, can have profound impacts on biological organisms. Animal studies have suggested that even low level fields, like those on the level of the typical office, can have serious health affects. Even a Dept of Energy commissioned study by Battelle labs in Columbus, Ohio found that rats exposed to EMF had growth retardation and weight gain compared to controls.
Do a web search on Robert Becker and check out the volume of peer reviewed, published studies on the subject. And these are from reputable journals, not fringe ones. Then draw your own conclusion.
The most important thing is to minimize exposure. If a car does in fact generate a large EMF, and you spend 1- 2 hours per day commuting, like most people in large cities, then you may have a greater risk of potential problems, then someone using a high powered hair dryer for 5 minutes.
I have had a Honda Insight for 8 years, and have driven it about 165,000 milles. I like it a lot, and would hate to have to give it up. I am concerned about the possibility of harm from electromagnetic fields, but so far I have no symptoms of anything. I have an implantable defibrillator, which reacts to large audio speakers and those car seat things that massage you, but it does not react to my car, thank goodness.
I bought a house under a bunch of high voltage power lines years ago. I only lasted there a few months and I had to sell the house; I could feel and "hear" the elecricity- and had buzzing in my scalp that disappeared when I was not in the house. The EMF was very high- I had a friend who was an electrical engineer who measured it. I read a lot about leukemia rates being higher in schools and homes near power lines and transformer boxes (those big boxes on people's front yards that house electrical stuff). I know I am more sensitive that most people, but the experience has made me afraid to get a hybrid, though I would love one. I think I'll have to do some more research. I know another very intelligent scientist who says hybrids are not dangerous, so, lots of conflicting info.
I bought a house under a bunch of high voltage power lines years ago. I only lasted there a few months and I had to sell the house; I could feel and "hear" the elecricity- and had buzzing in my scalp that disappeared when I was not in the house. The EMF was very high- I had a friend who was an electrical engineer who measured it. I read a lot about leukemia rates being higher in schools and homes near power lines and transformer boxes (those big boxes on people's front yards that house electrical stuff). I know I am more sensitive that most people, but the experience has made me afraid to get a hybrid, though I would love one. I think I'll have to do some more research. I know another very intelligent scientist who says hybrids are not dangerous, so, lots of conflicting info.
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