P*****a
发帖数: 2464 | 1 夏天搬来新家的时候complain过EMF太高，后来夏天过去大家不用空调也就好了。可是
前天又有新问题。我们搬进来以后餐厅的灯一直没买，前阵子刚订了，前天到货装上了
，结果一打开灯，半边房子的EMF从1跳到6-7了。关了灯又好了。我们觉得有可能是
wiring error。可是怎么查呢？我们有电笔，可是不是很懂电，需要有电工来装灯么？
汗。。。多谢大家指教。。。 | d*******3
发帖数: 6550 | 2 这个很难查，除非把墙扒开把挨个排查线
6-7不算高，而且餐厅也不是长时间待着还好了。
我们卧室之前能到50多，百思不得其解，后来终于发现一开卧室的5个大灯就爆表。后
来把5个75W的全部换成led的，要好一点，现在等开着也就10几。每天也就晚上睡觉前
开一会，所以只能这样了 | F***Q
发帖数: 6599 | 3
if you can't bear the radiation from your indoor lights, would you feel
comfortable walking under the sun light? (just think about all the harmful
radiation such as UV and gamma rays), what would you do about that?
【在 P*****a 的大作中提到】
: 夏天搬来新家的时候complain过EMF太高，后来夏天过去大家不用空调也就好了。可是
: 前天又有新问题。我们搬进来以后餐厅的灯一直没买，前阵子刚订了，前天到货装上了
: ，结果一打开灯，半边房子的EMF从1跳到6-7了。关了灯又好了。我们觉得有可能是
: wiring error。可是怎么查呢？我们有电笔，可是不是很懂电，需要有电工来装灯么？
: 汗。。。多谢大家指教。。。
| d*******3
发帖数: 6550 | 4 楼主说的辐射明显不是从灯来的，而且线路有问题而产生的电磁辐射。很多老房子都会
有这个问题。
【在 F***Q 的大作中提到】
:
: if you can't bear the radiation from your indoor lights, would you feel
: comfortable walking under the sun light? (just think about all the harmful
: radiation such as UV and gamma rays), what would you do about that?
| F***Q
发帖数: 6599 | 5
my point is still valid though.
UV and gamma-rays in the sun light are well known carcinogens, yet, the
adverse effect of EMF is still unknown. there has no conclusive scientific
proof it is harmful. if you do not concern about walking in the day light,
but concern about EMF, it does not seem to make sense.
In addition, EMF is the form of radiation in the low frequency range, but
There are plenty of EM radiations in the high frequencies, such as leakage
from microwave oven, cell phone and wifi signals. If one aims to eliminate
EMF, shouldn't they stop using cell phone or wifi as well?
【在 d*******3 的大作中提到】
: 楼主说的辐射明显不是从灯来的，而且线路有问题而产生的电磁辐射。很多老房子都会
: 有这个问题。
| d*******3
发帖数: 6550 | 6 No conclusive proof doesn't mean it is not harmful. There is proof that long
time exposure to certain level of EMF will have impact to human body. What
is wrong being more careful? It is impossible to eliminate EMF completely
nowadays, but we want to reduce the exposure to the lowest level as possible
, does this make sense?
【在 F***Q 的大作中提到】
:
: my point is still valid though.
: UV and gamma-rays in the sun light are well known carcinogens, yet, the
: adverse effect of EMF is still unknown. there has no conclusive scientific
: proof it is harmful. if you do not concern about walking in the day light,
: but concern about EMF, it does not seem to make sense.
: In addition, EMF is the form of radiation in the low frequency range, but
: There are plenty of EM radiations in the high frequencies, such as leakage
: from microwave oven, cell phone and wifi signals. If one aims to eliminate
: EMF, shouldn't they stop using cell phone or wifi as well?
| y****i
发帖数: 12114 | 7 shouldn't they stop using cell phone or wifi as well
long
What
possible
【在 d*******3 的大作中提到】
: No conclusive proof doesn't mean it is not harmful. There is proof that long
: time exposure to certain level of EMF will have impact to human body. What
: is wrong being more careful? It is impossible to eliminate EMF completely
: nowadays, but we want to reduce the exposure to the lowest level as possible
: , does this make sense?
| F***Q
发帖数: 6599 | 8
long
What
possible
but the same argument applies to wifi/cell phone radiation.
is there a particular reason putting EMF on a higher priority than the
microwave-transmitting cell phone in your pocket (whose transmission power
can be as high as 3-5W)?
http://www.forbes.com/sites/robertszczerba/2015/01/13/study-suggests-wi-fi-exposure-more-dangerous-to-kids-than-previously-thought/#57b590b95fdc
http://energyfanatics.com/2016/06/29/scientific-studies-reveal-wi-fi-radiation-is-harmful-to-brain-especially-childs-brain/
【在 d*******3 的大作中提到】
: No conclusive proof doesn't mean it is not harmful. There is proof that long
: time exposure to certain level of EMF will have impact to human body. What
: is wrong being more careful? It is impossible to eliminate EMF completely
: nowadays, but we want to reduce the exposure to the lowest level as possible
: , does this make sense?
| d*******3
发帖数: 6550 | 9 this is not about priority, this is about trying to reduce exposure as much
as possible. The same applies to wifi and cellphone. If you have measured
their EMF, wifi only generates high EMF a few feet near the router, and
cellphones generate high EMF when the screen is lit.
【在 F***Q 的大作中提到】
:
: long
: What
: possible
: but the same argument applies to wifi/cell phone radiation.
: is there a particular reason putting EMF on a higher priority than the
: microwave-transmitting cell phone in your pocket (whose transmission power
: can be as high as 3-5W)?
: http://www.forbes.com/sites/robertszczerba/2015/01/13/study-suggests-wi-fi-exposure-more-dangerous-to-kids-than-previously-thought/#57b590b95fdc
: http://energyfanatics.com/2016/06/29/scientific-studies-reveal-wi-fi-radiation-is-harmful-to-brain-especially-childs-brain/
| F***Q
发帖数: 6599 | 10
much
no, your EMF meter can't accurately measure the radiation from wifi (2.4GHz/
5GHz). an EMF meter mostly measures the ELF (extremely low frequency)
radiation, calibrated around 50Hz to 60Hz (AC and transmission line)
https://en.wikipedia.org/wiki/EMF_measurement#Sensitivity
so, even you manage to drop your ELF reading to 0, you should not have the
false impression that you can live safely without any EMF around you. in
fact, RF radiation is probably dominating in the household EM radiations
because you continue to use microwave ovens, cell phones and wifi.
【在 d*******3 的大作中提到】
: this is not about priority, this is about trying to reduce exposure as much
: as possible. The same applies to wifi and cellphone. If you have measured
: their EMF, wifi only generates high EMF a few feet near the router, and
: cellphones generate high EMF when the screen is lit.
| | | d*******3
发帖数: 6550 | 11 ELF是公认的对人体有极大危害的
我的meter有测量高频RF EMF的，只有微波炉运转的时候会产生足够大的RF EMF, wifi
和cellphone虽然频率高，但功率很小
没人有false impression, 我前面已经说过了尽可能reduce exposure有什么问题么？
不知道你说那么多point是什么？
4GHz/
【在 F***Q 的大作中提到】
:
: much
: no, your EMF meter can't accurately measure the radiation from wifi (2.4GHz/
: 5GHz). an EMF meter mostly measures the ELF (extremely low frequency)
: radiation, calibrated around 50Hz to 60Hz (AC and transmission line)
: https://en.wikipedia.org/wiki/EMF_measurement#Sensitivity
: so, even you manage to drop your ELF reading to 0, you should not have the
: false impression that you can live safely without any EMF around you. in
: fact, RF radiation is probably dominating in the household EM radiations
: because you continue to use microwave ovens, cell phones and wifi.
| F***Q
发帖数: 6599 | 12
that's not true, but believe whatever you want to believe
if you really have interests to understand the scientific validations, you
should read more
http://www.cancer.org/cancer/cancercauses/radiationexposureandcancer/extremely-low-frequency-radiation
http://www.mitbbs.com/article/Living/32883543_0.html
wifi
I am trying to draw a line between being justifiably cautious and being
unnecessarily anxious.
of course, it is your own liberty to draw your own line. it is not my
purpose to alter your judgement. if you want to spend money to make you feel
better, go for it!
【在 d*******3 的大作中提到】
: ELF是公认的对人体有极大危害的
: 我的meter有测量高频RF EMF的，只有微波炉运转的时候会产生足够大的RF EMF, wifi
: 和cellphone虽然频率高，但功率很小
: 没人有false impression, 我前面已经说过了尽可能reduce exposure有什么问题么？
: 不知道你说那么多point是什么？
:
: 4GHz/
| d*******3
发帖数: 6550 | 13 what is not true? No link between ELF and cancer doesn't mean no harm, look
at this WHO report.
"For high-level short-term exposures to EMF, adverse health effects have
been scientifically established (ICNIRP, 2003)."
"Health effects related to short-term, high-level exposure have been
established and form the basis of two international exposure limit
guidelines (ICNIRP, 1998; IEEE, 2002)."
http://www.who.int/peh-emf/publications/facts/fs322/en/
nobody is anxious, we still use microwave ovens, wifi and cellphones, there
is nothing wrong to be too careful. Especially due to so many researches
suggesting the adverse health effects.
Here are more quotes from ICNIRP
"Although there remains some uncertainty, the trend in the accumulating
evidence isincreasingly against the hypothesis that mobile phone use can
cause brain tumours in adults. "
feel
【在 F***Q 的大作中提到】
:
: that's not true, but believe whatever you want to believe
: if you really have interests to understand the scientific validations, you
: should read more
: http://www.cancer.org/cancer/cancercauses/radiationexposureandcancer/extremely-low-frequency-radiation
: http://www.mitbbs.com/article/Living/32883543_0.html
: wifi
: I am trying to draw a line between being justifiably cautious and being
: unnecessarily anxious.
: of course, it is your own liberty to draw your own line. it is not my
| F***Q
发帖数: 6599 | 14
look
I believe your statement "ELF是公认的对人体有极大危害的" is not true.
it has not been scientifically proven, saying it is "公认" and "有极大危害"
is clearly biased and inaccurate.
【在 d*******3 的大作中提到】
: what is not true? No link between ELF and cancer doesn't mean no harm, look
: at this WHO report.
: "For high-level short-term exposures to EMF, adverse health effects have
: been scientifically established (ICNIRP, 2003)."
: "Health effects related to short-term, high-level exposure have been
: established and form the basis of two international exposure limit
: guidelines (ICNIRP, 1998; IEEE, 2002)."
: http://www.who.int/peh-emf/publications/facts/fs322/en/
: nobody is anxious, we still use microwave ovens, wifi and cellphones, there
: is nothing wrong to be too careful. Especially due to so many researches
| d*******3
发帖数: 6550 | 15 极大危害可能有点夸张，但是公认的我觉得没有问题，这个基本没有争议，只是需要更
多的scientific evidence.
害"
【在 F***Q 的大作中提到】
:
: look
: I believe your statement "ELF是公认的对人体有极大危害的" is not true.
: it has not been scientifically proven, saying it is "公认" and "有极大危害"
: is clearly biased and inaccurate.
| f****i
发帖数: 20252 | 16 搬去山洞住？
【在 d*******3 的大作中提到】
: 极大危害可能有点夸张，但是公认的我觉得没有问题，这个基本没有争议，只是需要更
: 多的scientific evidence.
:
: 害"
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