Re: off topic/UV light transmission of glasses

[Guest guest]

> This is off topic,I am sorry but I could not find this info anywhere so

> I thought I should ask you. How many percentage of UV radiation passes

> through single layer glass window?Do you have any idea?

I don't know the answer to this, but I thought I'd mention that there are

people who don't consider exposure to UV radiation to be unhealthy, as

long as it's in moderation. I think one of the best things you can do

for your health is to get 10-20 minutes/day of sunshine, as it's a good

source of Vitamin D (and probably a lot of other things). So I wouldn't

try to isolate yourself from UV radiation *too much*.

Marc

[Guest guest]

No,no.the problem is the reverse.I am severely exhausted and can not go out

often to get decent sun light.At the same time have osteoporosis. I have a

balkony which has single layer glass windows and I was trying to estimate the

time amount I have to sit there.If I know the percentage of the UV light is

transmitted through single layer glass window than I can estimate the least time

I need to sit there.

Thanks very much.

Nil

---- Original Message -----

From: Marc

Sent: Friday, February 27, 2004 1:05 AM

Subject: Re: off topic/UV light transmission of glasses

> This is off topic,I am sorry but I could not find this info anywhere so

> I thought I should ask you. How many percentage of UV radiation passes

> through single layer glass window?Do you have any idea?

I don't know the answer to this, but I thought I'd mention that there are

people who don't consider exposure to UV radiation to be unhealthy, as

long as it's in moderation. I think one of the best things you can do

for your health is to get 10-20 minutes/day of sunshine, as it's a good

source of Vitamin D (and probably a lot of other things). So I wouldn't

try to isolate yourself from UV radiation *too much*.

Marc

------------------------------------------------------------------------------

[Guest guest]

Dear Nil,

It is a simple matter to measure the UV exposure, either through the glass,

or outdoors directly.

There is an inexpensive ($50) meter called UV Smart which measures both UVA

and UVB and gives a digital readout of UV intensity in W/m²:

http://www.lessemf.com/ionizing.html#455

Also, there is a simple UV Meter Card for about $4, which gives a relative

reading of UV intensity via color change:

http://www.lessemf.com/ionizing.html#198

The UV intensity varies during the day/year, depending on the angle of the

sun, and weather conditions.

Emil

At 01:18 AM 2/27/2004, you wrote:

>No,no.the problem is the reverse.I am severely exhausted and can not go

>out often to get decent sun light.At the same time have osteoporosis. I

>have a balkony which has single layer glass windows and I was trying to

>estimate the time amount I have to sit there.If I know the percentage of

>the UV light is transmitted through single layer glass window than I can

>estimate the least time I need to sit there.

>Thanks very much.

>Nil

>---- Original Message -----

> From: Marc

>

> Sent: Friday, February 27, 2004 1:05 AM

> Subject: Re: off topic/UV light transmission of glasses

>

>

> > This is off topic,I am sorry but I could not find this info anywhere so

> > I thought I should ask you. How many percentage of UV radiation passes

> > through single layer glass window?Do you have any idea?

>

> I don't know the answer to this, but I thought I'd mention that there are

> people who don't consider exposure to UV radiation to be unhealthy, as

> long as it's in moderation. I think one of the best things you can do

> for your health is to get 10-20 minutes/day of sunshine, as it's a good

> source of Vitamin D (and probably a lot of other things). So I wouldn't

> try to isolate yourself from UV radiation *too much*.

>

> Marc

>

>

>------------------------------------------------------------------------------

>

[Guest guest]

Hello Emil,

could you send me this simple UV Meter Card?

Claessens

Homerusplein 214

3076 LZ Rotterdam

Netherlands

Btw. did you read my *het bitje* october/februari 2004, concerning the

Gigahertz meters, which I mad now in an english version.

Did you see, that I mentioned Lessemf as a distributor?

Gigahertz Solutions did not know that you posted their meters on your

website, till I told them.

Greetings,

Claessens

member Verband Baubiologie

http://members.rott.chello.nl/cclaessens/

http://www.hese-project.org

checked by Norton Antivirus

Greetings,

Claessens

member Verband Baubiologie

http://members.rott.chello.nl/cclaessens/

http://www.hese-project.org

checked by Norton Antivirus

Re: off topic/UV light transmission of glasses

Dear Nil,

It is a simple matter to measure the UV exposure, either through the glass,

or outdoors directly.

There is an inexpensive ($50) meter called UV Smart which measures both UVA

and UVB and gives a digital readout of UV intensity in W/m²:

http://www.lessemf.com/ionizing.html#455

Also, there is a simple UV Meter Card for about $4, which gives a relative

reading of UV intensity via color change:

http://www.lessemf.com/ionizing.html#198

The UV intensity varies during the day/year, depending on the angle of the

sun, and weather conditions.

Emil