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Raleigh, NC
Posts: 197
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DeWitt, Mi
Posts: 3305
Joined: Jan, 2004
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measuring electromagnetic fields
[#2] Posted: 03/29/2009 - 05:39:05 AM |  |  |
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Jamison,
Zip around the web a little bit and you will get any number of "opinions".
I worked a file several years ago for the court that involved dairy cows and power lines and found that nobody knew much of nothing at that time.
Buy a Gauss meter, abt $20.00, and have fun with it. As far as I know using WestLaw lexus/nexus there are no precedential actions. Stick a meter on the dash of your vehicle and it will go nuts driving under traffic lights, power lines, speed traps, etc..
BTW, the cows lost!
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Les
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Kenmore, WA
Posts: 15396
Joined: Dec, 2003
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measuring electromagnetic fields
[#3] Posted: 03/29/2009 - 07:18:52 AM | | |
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When customers ask me about power lines, I opine that until they have verifiable studies with proper conclusions I'm going to consider it hocus pocus. I have a compass that I use to verify the direction that the house points. I'll walk them out on the front lawn, show them which way the house points and then walk inside the house and check it again and it's almost always off about 8 to 10 degrees. That's when I point out to them that all of us living inside of electrified homes are subjected to electro-magnetic radiation 24/7/365 so what possible difference could living 200 meters from a set of power lines make.
I'd guess that a big screen TV emits more measurable radiation than a set of power lines 200 meters away.
ONE TEAM - ONE FIGHT!!!
Mike
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Spring Hill (Nashville area), Tennessee
Posts: 3384
Joined: Nov, 2003
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measuring electromagnetic fields
[#4] Posted: 03/29/2009 - 07:50:32 AM | | |
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When I was a teenager we had a power company substation in our subdivision, for some unknown reason we thought it was fun to stick old fluorescent light bulbs along the fence with tape a few times a year. They would all start glowing as soon as we got within a few feet of the fence that went around the substation. We use to spell words out on the fence (Stop the War, Peace and Flower Power,etc....were the common ones).
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Scott Patterson
http://www.traceinspections.com
"Minds are like parachutes they only function when open"
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Nashville, TN
Posts: 1375
Joined: May, 2007
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 measuring electromagnetic fields
[#5] Posted: 03/29/2009 - 07:50:32 AM | | |
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Some years back, some of the neighbor ladies talked me into persuading some guys from the power company to come and measure the EMF fields under some neighborhood power lines.
Unverified results went something like this: The power lines in question were very high off the ground and produced no meaningful EMFs at ground level.
Just for fun, the two power-company guys asked if they could come into my house and show me a few things. I agreed. What I learned was that if anything's gonna getcha with EMFs, it's gonna be your microwave, your blender and your electric shaver. Essentially, anything with a motor in it.
I would not start checking for EMFs on an HI job. The hand-wringers will be reaching for the Xanax, and calling you on the phone non-stop. If the hand-wringers bug you to the verge of craziness, tell them to call the power company. Let the utility guys catch all the aggravation.
WJ
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Raleigh, NC
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State: PA & NJ
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Bailey, CO
Posts: 158
Joined: May, 2005
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measuring electromagnetic fields
[#8] Posted: 03/29/2009 - 8:43:44 PM | | |
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Hello CheckItOut…
“I know there are studies that show increased risk of leukemia living near these…”
No there aren’t. Never were. Saying that there are opinions out there that support the contention that the EMFs are of concern is similar to saying “Well, there are many experts out there who contend the Earth is flat.” Just because there is an opposing opinion doesn’t mean that the opposing opinion is valid or worthy of consideration. The whole Leper and Wirthheimer studuy nonsense that started the whole EMF BS was absolute junk science from the beginning, and NEVER found legitimacy amongst real scientists or epidemiologists. The same people who think that EMFs such as that under consideration pose a significant risk are also to likely to believe that putting their razor blade under a pyramid keeps it sharper longer.
I do EMF surveys and studies (Edit: dang, in fact, I just realized, I'm NIOSH 582 certified in ionizing and non-ionizing rads... I should find that piece of paper... could come in handy...) and yes there are standards that apply to the exposures. However, if anyone thinks they can take a Gauss meter and measure near-field EMFs at a residence by the power-lines near the house, then they don’t know what they are talking about since it cannot be done… by ANYONE. EVER. It is a physical impossibility.
Now, in some of my surveys, where guys walk around in silvered suits INSIDE microwave dishes (where the field strengths are so high sparks jump from the dish surface to the feet of the workers… those fields are an hazard…).
When I do residential EMF surveys, a prerequisite is that the customer has to sign a statement acknowledging that I informed them the measurements are COMPLETELY meaningless, and COMPLETELY uninterpretable. The client is also informed that the results of the survey are only good for the moment in time the measurement was taken and will change if a car anywhere on the street moves (good heavens, you should see what happens if a delivery van goes by!!).
Caoimhín P. Connell
President, Cranky Old Chemist’s Society
(The opinions expressed here are exclusively my personal opinions and do not necessarily reflect my professional opinion, opinion of my employer, agency, peers, or professional affiliates. The above post is for information only and does not reflect professional advice and is not intended to supercede the professional advice of others.)
AMDG
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