How much electromagnetic radiation am I exposed to?

May 4, 2016, Universidad Politécnica de Madrid
How much electromagnetic radiation am I exposed to?
Credits: Pixabay

A team of researchers from Center for Biomedical Technology (CTB) at Universidad Politécnica de Madrid (UPM) has developed a pocket instrument capable of perceiving radio signals from 50 MHz to 6 GHz and storing this information in a non-volatile memory. After collecting and storing the information, the system assesses the daily exposure of a person to electromagnetic radiation.

Society demands continuous implementation of new transmission systems due to ongoing development of communication technologies. These systems work by emitting . As a result, population is exposed to a significant increase of environmental radiation levels.

The increasing number of transmitters along with the unawareness of the characteristics and the exact location of the radio transmitters are an extra impediment that makes hard a real knowledge of the variations in electromagnetic field levels in urban environments.

The concern about the possible effects of the electromagnetic fields on human beings is a fact. The need of the authorities to control radio emissions has meant the development of specific regulation on exposure to electromagnetic fields.

In spite of the regulations, there exists a perception of risk among citizens due to the unawareness about the amount of radiation received. To carry out a real and non-theoretical measure is required to assess the radiation of each person at any place either inside buildings or outdoors. Only in this way could we really know the radiation levels of each person in his environment. Thus, a personal and as the one developed by the Bioelectromagnetism Laboratory from CTB at UPM is essential to assess the mentioned levels of radiation.

This new device is a pocket system, comfortable and capable of perceiving radio signals between a frequency band from 50 MHz to 6 GHz. The operating frequency range is divided into channels of bandwidth of 10 MHz each. In this way, the field strength received of each channel is measured, and such information is stored in a . The levels received by a person who wears the device are stored to later assess his exposure for extended periods of time.

The maximum radiosensitivity designed for this device would be 110dB, thus the device could indirectly support radiated powers up to 300W at a distance of one meter from the source without damaging the electronic system.

The digital system also includes visual and auditory indicators that are used to report . These alert signals are programmable, interesting for those users who wish to control that their exposure to levels of radiation in their environment obey the specific limitations.

All the characteristics mentioned before turn this device into an instrument of measurements for any person who wish to control the . The device has been protected through patent.

Explore further: A new computer model greatly speeds up the analysis of data from electromagnetic reverberation chambers

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38 comments

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gkam
1 / 5 (12) May 04, 2016
Oh, good! Now maybe we can find out what the qualities are of the EM smog in which we are immersed.

Yes, I am sure some folk will assert it is good for us to expose ourselves to non-ionizing EM radiation.
Uncle Ira
4.1 / 5 (14) May 04, 2016
a pocket instrument capable of perceiving radio signals from 50 MHz to 6 MHz
Would be pretty much useless, eh? Choot,,,, I got a field strength meter I built all by myself and already know that the background noise is only in the picoV/m. The 50kW radio station four miles up the road only delivers about 100 or so microV/m.

Those frequencies are not the ones seeing an increase in use. The HF band has been pretty much full of designated users for a long time. The new additions are all being added in the UHF and SHF bands, if they were worried about "exposure" and "health", those are the bands they should be studying.

Now maybe we can find out what the qualities are of the EM smog
What is this "EM smog" Cher? Is it some kind of clouds of photons drifting about in the humid air? Skippy, "smog" is a really bad choice of words of a radio tech of your high caliber. (Especially bad choice for a Senior Electrical Engineer".)
BSD
4.3 / 5 (6) May 04, 2016
"The concern about the possible effects of the electromagnetic fields on human beings is a fact."

Yes, it is a fact that there are some people concerned about EM radiation and it's POSSIBLE effects on humans and you might well include all living things.

There is no direct provable link between non-ionising EM radiation and cancer.

If all power and RF communications were taken away, lets see how long we will be able to do without it. There will be no Internet for all the anti science, anti- technology alarmists to vent their BS on.

"perceiving radio signals from 50 MHz to 6 MHz"

So this detection meter only goes to 50MHz? Strange, very strange.

There is also that issue about the biggest emitter of ionising EM radiation on the planet, ranging from infrared through to ultraviolet radiation...... the Sun.
gkam
1 / 5 (11) May 04, 2016
Yeah, EM smog. I know you cannot see it from your boat there in the mud, but you get it.

I am sure it is good for you. Get more.
gkam
1 / 5 (11) May 04, 2016
BSD, RF is not new to us, but your casual indifference is worrisome. Nobody is saying to get rid of radio communications, so give it up.

The problems arise when we just assume it is okay because we are ignorant of some of the effects.
Uncle Ira
4.1 / 5 (14) May 04, 2016
Yeah, EM smog.
EM smog? That must be one of those technical words that you can only learn at the "glam-Skippy Seminar For Electrical Engineer's To Learn The Stuff They Never Learned In School"

I know you cannot see it from your boat there in the mud, but you get it.
It would really mean more if you would try to tell me about what it is instead of just I "get it". I already told you I can already measure the EM field strengths,,, is there some other thing I should be measuring?

I am sure it is good for you. Get more.
Well maybe I would if you would tell me what it is I am trying to get more of. When I am doing my radio stuffs, I am already trying to get as much as can, better antennas I experiment with all the time. Cher, for the Air Force Radio Tech Expert who worked on all the super good stuffs and Senior Electrical Engineer, you sure are not exactly a fount of information I can use to suck in extra photons for DXing..
gkam
1 / 5 (11) May 04, 2016
Nope. Not interested in you folk playing your "Breaker-breaker!" games. We used it in the service for real reasons, not games.

Got all the RF communications I needed in VHF, UHF, and HF bands, thanks. It is old hat to many of us, but you go play, . . . .
Uncle Ira
4.3 / 5 (12) May 04, 2016
Nope. Not interested in you folk playing your "Breaker-breaker!" games. We used it in the service for real reasons, not games.


So does that mean that once again all we going to get is some slogans, blurts and blahs and you are just going make the silly comment that shows you don't understand the subject?

Got all the RF communications I needed in VHF, UHF, and HF bands, thanks.
Maybe that is what caused you to develop the mental conditions you have. Did you regularly climb the antenna tower while they were in use?

It is old hat to many of us, but you go play, . . . .
Yeah, I see the pictures of the silly looking hats they give to you guy to wear. But they did not look old, they looked shiny and new like right off the factory floor. But I agree it must be an old hat to you because, you either never learned much since then, and there has been a lot of new good stuffs to learn. Or it is so old you forget everything you ever learned.
gkam
1 / 5 (11) May 04, 2016
Babble on. This is not about hats.

I am not in favor of increasing our exposure to RF. Got it?
Uncle Ira
4.1 / 5 (13) May 04, 2016
Babble on. This is not about hats.

I am not in favor of increasing our exposure to RF. Got it?


You are the one babbling Cher. All I wanted to know is exactly what this "EM smog" was. And since you don't want to tell us, all I can do is assume is you don't know what the heck you are babbling about.

What are your concerns? And why do you think a "detector" for HF only is some great new source of information? Cher, we been measuring HF for 100 years. The use of the HF spectrum has not grown in 50 years, so why is this "6 MHz to 50 MHz" thing a big deal NOW?

It's only babbling because you can not even answer the easy questions. You are clueless in this subject Cher, and thanks again for the proof of you phoniness and posturing. (How's that for a babble?)
gkam
1 / 5 (10) May 04, 2016
Not HF, but RF.

There is a difference to those who know. Your lazy HF play stuff is not as worrisome as the higher-energy shorter wavelength frequencies.
Uncle Ira
4.1 / 5 (13) May 04, 2016
Not HF, but RF.
HF is one small portion of RF Cher. You really are as dumb as stump.

There is a difference to those who know.
Apparently you don't know. HF IS RF. Like a POODLE IS a DOG.

Your lazy HF play stuff is not as worrisome as the higher-energy shorter wavelength frequencies.
Which only means that once AGAIN you did not read the article. It is about a detector for HF, it said right up there 6 MHz to 50 MHz. That is mostly HF. Cher, you are your own worst enemy when it comes to exposing how really NOT knowledgeable you are on the stuffs you claim "experience" with.
ab3a
4.9 / 5 (9) May 04, 2016
I'm amused that the picture associated with the article is of towers filled with antennas that are almost entirely above the range of RF that the article mentions (most of HF and Low Band VHF). Furthermore, it's not towers filled with antennas one should worry about. The actual radiation at ground level from such towers is hardly worth measuring.

If I were the worrying sort, I would suggest worrying about the radiation from a laptop, tablet, or phone, particularly those capable of NFC.

All that said, the notion of actually measuring exposure is not a bad one. I'll bet exposure is far higher than most people are aware of --not that I think it might be toxic or anything...
gkam
1 / 5 (10) May 04, 2016
Phys, it is not my characterization, but a good one. We are immersed in it from sources of which we are not even aware. How much is too much? The RF from your anti-collision device? The RF from your Wi-Fi? Radar? "Smart" phone? All together for extended periods? Any synergies from the mix?

We are experimenting on ourselves.

And, yes, I have worked with it.
Captain Stumpy
4.1 / 5 (14) May 04, 2016
Not HF, but RF
@Couyon-liar-kam
Ira is correct
https://books.goo...;f=false

The radio spectrum is the part of the electromagnetic spectrum from 3 Hz to 3000 GHz (3 THz)
per- ITU Radio Regulations – Article 1, Definitions of Radio Services, Article 1.2 Administration: Any governmental department or service responsible for discharging the obligations undertaken in the Constitution of the International Telecommunication Union, in the Convention of the International Telecommunication Union and in the Administrative Regulations (CS 1002)
http://www.itu.in...REG-RR/e

http://www.itu.in...ult.aspx

http://life.itu.i...cont.htm

https://www.ntia....2010.pdf

much more available, BTW
Captain Stumpy
4.1 / 5 (14) May 04, 2016
@couyon-liar-kam cont'd
And, yes, I have worked with it
then why the obvious faux pas and screw up above?

i mean, it's not like you can't see by the first link that "HF" is a part of the International Radio Freq. band designations and Numerical designations

Plus, any "actual" engineer who " worked with it" would also know the above plus references, as noted in the above sets of links (which is now governed internationally, including the US acceptance of the ITU)
https://www.fcc.g...ssions-0

so why is it that you didn't know that?
or that you challenged Ira (who actually has an FCC license, mind you)??

why is it that you fear the radio freq's???

is this another unfounded irrational emotional fear???

considering your claims of education and engineering, i find it hard to believe you're so ignorant of basic science.... so is this early onset dementia or what?
Uncle Ira
3.9 / 5 (14) May 04, 2016
Not HF, but RF
@Couyon-liar-kam
Ira is correct


Thanks for that Captain-Skippy. But he does have lots of "experience" and that surely trumps any facts. His "experience" shows in all his blurts and blahs and slogans,,,, it's really a shame they don't show his "experience" the way he intends. Some couyons will never learn from their mistakes and try a different approach. I really think it is mental conditions.
Estevan57
4.6 / 5 (9) May 04, 2016
Ha Ha Ha Ha, I am greatly amused. Built your own meter, Ira? Cool.
I've built a bunch of guitar effects, but found I am better off just practicing more.
Uncle Ira
4.1 / 5 (14) May 04, 2016
Ha Ha Ha Ha, I am greatly amused. Built your own meter, Ira? Cool.
I've built a bunch of guitar effects, but found I am better off just practicing more.


A field strength meter is not so big a deal. About $20 in parts, and you can find pages and pages of home-brew instructions on the interweb. You want to hear something really impressive? For my last birthday, Little-Ira-Skippy built for me an antenna analyzer using a Arduino that will do everything a $300 analyzer will do,,, for $50. THAT impressed me.
gkam
1 / 5 (10) May 04, 2016
You folk are making my point. It is not the HF part of the spectrum, as I said, but the higher frequencies which are more worrisome to me.

Your silly attempt to find fault is indicative of your character.
Uncle Ira
4.1 / 5 (13) May 04, 2016
You folk are making my point. It is not the HF part of the spectrum, as I said, but the higher frequencies which are more worrisome to me.
This is what you said to start the comments on this article.

Oh, good! Now maybe we can find out what the qualities are of the EM smog in which we are immersed.


Which means you must not have read the article if you meant the
not the HF part of the spectrum, as I said, but the higher frequencies which are more worrisome to me


Because if you had read the article, you would have seen the very first sentence in the article.

has developed a pocket instrument capable of perceiving radio signals from 50 MHz to 6 MHz and storing this information
Which happens to be mostly HF and a tiny portion of the lower VHF.

Your silly attempt to find fault is indicative of how little I know about all things I have "experience" with.
I'll agree with that.
TheGhostofOtto1923
3.9 / 5 (11) May 04, 2016
Apparently you don't know. HF IS RF. Like a POODLE IS a DOG
Like George kamburoff is a psychopath.

Its obvious that George has had decades of experience in dodging objections to his lies and fabrications. What other kind of person could act as if he were still right after being presented with such proof that he is so full of shit?

That's why they call it the Mask of Sanity
http://cassiopaea...path.htm

"One thing we do know is this: many people who experience interactions with psychopaths and narcissists report feeling "drained" and confused and often subsequently experience deteriorating health."

-People like George think that making others physically ill is a victory.
doctamike
2.4 / 5 (7) May 04, 2016
At the risk of interrupting the enjoyable banter about inconsequential details and attempted one-upmanship so evident here, it appears not many folk actually read the article. It looks as though the 6MHz figure is clearly a typo (hint: the logical order of lower and upper frequencies is reversed) and the upper limit is shown as 6GHz later on. FWIW, I've certainly heard of the term "EM smog" for a decade or two to describe the broadband ambient EM fields in our modern environment. Prob not a bad metaphor.
ab3a
4.3 / 5 (6) May 04, 2016
Doctamike, I have seen all kinds of alarmist nonsense about non-ionizing radiation. In fact it has been a concern since the discovery of radio over a century ago. To date, there are no consistent, repeatable studies. Those that show positive results are later discovered to be irreproducible or flawed.

The problem is that medical researchers don't know much about RF Engineering and RF Engineers don't know much about medical research. Inevitably there are mistakes on one discipline or the other.

Entertaining a term such as "EM Smog" inevitably leads to more trollish stupidity. Language is important. Smog is a term that refers to something negative (smoke and fog). In over a century of research, nobody has proven that the EM exposure is unhealthy in any manner other than direct thermal effects. Please don't feed the trolls.
gkam
1 / 5 (10) May 05, 2016
" I have seen all kinds of alarmist nonsense about non-ionizing radiation"
-----------------------------------

Oh, good.

Go get more. I am sure it is wonderful for you.
Uncle Ira
3.9 / 5 (11) May 05, 2016
" I have seen all kinds of alarmist nonsense about non-ionizing radiation"
-----------------------------------

Oh, good.

Go get more. I am sure it is wonderful for you.


Unlike you he is the "REAL" Electrical Engineer, with the degrees licenses AND "EXPERIENCE". What you got to stack up against that? (Besides your lame claims here on the physorg.)
gkam
1.4 / 5 (11) May 05, 2016
Don't you work for a living? What kind of menial job lets you play on the internet at work? Taking tickets at the theater?

You saw my personal performance reports from my Commander at the Air Force Flight Test Center. You saw my diploma and thesis for my Master of Science. You saw my citations in three military websites with my name and picture in them.

You were sent the entire NASA catalog with my studies and reports for NASA in it. You saw the reviews for my Power Quality education of the nation's utility engineers.

What you got?

BTW, there is more, . . .
Captain Stumpy
4 / 5 (12) May 05, 2016
Entertaining a term such as "EM Smog" inevitably leads to more trollish stupidity. Language is important
@doctamike
To piggy-back on this from ab3a, this is absolutely true

when you constantly associate negative image or things to a particular situation, product, person or etc, you will create a negative overall association with said item - this is evident in the conversations with people about everything from nuclear safety or flying to political candidates and companies on the stock market... this is why they employ spin doctors and people for their image (like big oil companies)

see also: https://www.veryw...-2795410

we're constantly exposed to non-ionizing radiation... perhaps if the statistics could show correlation between exposure and specific RF, etc, the metaphor would hold more traction, but we can't even register the "smog" unless we have special adapted technology (dependent on said smog).
Uncle Ira
4.1 / 5 (14) May 05, 2016
Don't you work for a living? What kind of menial job lets you play on the internet at work?
A really good one. That I really know how to do real good.

You saw my personal performance reports from my Commander at the Air Force Flight Test Center.
Alright, I give you an extra gold star for keeping your head down and our of trouble.

You saw my diploma and thesis for my Master of Science.
You mean the one that don't have a subject or a "College of Arts & Sciences on him? Yeah, I see that.

You saw my citations in three military websites with my name and picture in them.
Non, Cher, I only saw the newsletter where you won the monthly prize for a $25 gift certificate and a free dinner from the Rotary Clubs. The same one that said you were the 3 colleges drop out.

BTW, there is more,
Yeah, Cher. I will have to P.S. you with. Skippy, I really wish you would be more considerate to the physorg and just ask me to deal with one lie at a time.
Da Schneib
3.5 / 5 (11) May 05, 2016
LOL, Gracie goes ballistic over "teh EM waveses iz teh DANGEREMOUS!!!11!!one!"

Absolutely classic, and very revealing about how reliable this person is on any technical subject whatsoever.
Uncle Ira
4.1 / 5 (14) May 05, 2016
A short P.S. for you glam-Skippy because you try to cram so many lies into one postum thinking maybe three or two of them might get through.

You were sent the entire NASA catalog with my studies and reports for NASA in it.
The one that did not say what your job was? And did not say what you did? And did not say anything about you? Yeah, I see that. Not much to see, but I see what it DID NOT say, just like the Master Degree you got for "life experiences".

You saw the reviews for my Power Quality education of the nation's utility engineers.
Are you talking about the ones that Otto-Skippy found? The ones you wrote your self on that really sophisticated interweb page with you wearing the silly looking pointy cap with stars and moons on him? Yeah, I had a good laugh at that one. Or maybe you are talking about the interweb page that said you give the lectures to the office staffs on Basic Electricity stuffs (Ohm's Law) for them to get CEU's.
gkam
1 / 5 (11) May 05, 2016
Silly trolls.

Ira was too embarrassed to tell you the headline in that column on the front page of the newspaper of the Air Force Flight Test Center with my picture on it was:
"Kamburoff Named Center Airman of the Month".

Now Da you-know-what is joining the mob, unable to resist the urge.

Shall I send him the NASA catalog? The front page of the newspaper? Some of my course material? Copies of my reviews? The URLs of the military websites with my name on them? Copies of other proof?

And what has Da You-know-what proven?

Got some?

Nope. It is emotional with him, not logical.

gkam
1 / 5 (11) May 05, 2016
Da You-know-what and Ira and Rumpy are buddies on other fora, such as Froggy's.
They think they are the cops, and the arbiters of truth, but have no experience, just ego.

Just do not get them mad at you. They are the "get even" kind of malicious folk.

Uncle Ira
4.4 / 5 (13) May 05, 2016
Ira on other fora, such as Froggy's.
glam-Skippy, have you ever gone a whole day without telling a lie? I mean, we know you have not here on the physorg, but how about a day when you were not telling lies on the interweb?
gkam
1 / 5 (10) May 05, 2016
"really sophisticated interweb page with you wearing the silly looking pointy cap with stars and moons on him?"
------------------------------

Yeah, that one with the cartoon of me in the Wizard's outfit, drawn by a customer impressed with my problem-solving at the GM plant in your area. If you had looked a little deeper, you would have seen the actual graphs of what power quality means. The transformer information I took shows clearly how high third harmonics in delta-wye secondaries can turn to predominately-fifths in the primary currents.

If you want to see how waveshape analysis works, look up the Handbook of Power Signatures by McEachern and turn to page 10, titled "George's Comments".

Or, I could send you some course material, . . . and then explain it to you.
Uncle Ira
4.1 / 5 (14) May 05, 2016
"really sophisticated interweb page with you wearing the silly looking pointy cap with stars and moons on him?"
------------------------------

Yeah, that one with the cartoon of me in the Wizard's outfit,
And it sure does instill the confidence in any of the peoples you are trying to suck in, I mean sign up for some consulting.

Or, I could send you some course material,
Since you are really a moron when it comes to learning from your mistakes, yeah, go ahead and send him Cher, usually the stuffs you send are great big fun.

But I really do wish you would try to use that towering intellect and awesome "experience" to put a little more creativity into your physorg trolling. You keep repeating the same lame slogans and goofy "insults" that you been using for a half year plus a year here, and for 6 or 5 years all over the interweb.
gkam
1 / 5 (10) May 05, 2016
"You keep repeating the same lame slogans and goofy "insults""
------------------------------

Yup, just like a cypress stump.

And I am retired. That is how I can play here on the internet with you. Do you have a job?
TheGhostofOtto1923
4.2 / 5 (10) May 05, 2016
when you constantly associate negative image or things to a particular situation, product, person or etc, you will create a negative overall association with said item
That might be true when found elsewhere. But when gkam/George kamburoff the lying psychopath posts them, people laugh.

"Most people are able to combine ideas that have consistent thought themes, but psychopaths have great difficulty doing this. Again, this suggests a genetic restriction to what we have called the JUVENILE DICTIONARY. Not only are they using extremely restricted definitions, they cannot, by virtue of the way their brains work, do otherwise. Virtually all of the research on psychopaths reveals an inner world that is BANAL, SOPHOMORIC, and DEVOID of the color and detail that generally exists in the inner world of normal people. This goes a long way to explain the inconsistencies and contradictions in their speech."

-Obvious to everybody but poor George.

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