Be aware of RSP (respirable suspende particles)

Hi together

To make this clear i don't want do panic or something but it's a point that everybody should know (and everyone can then do whatever he thinks is right).

I have only a german article right know ( http://www.nzz.ch/aktuell/digital/schadstoffe-aus-dem-3d-drucker-1.18122641 ) but I try to say it in a nutshell.

3-D printer emmit a "high ammount" of ultra fine particles (less than 0.1 micro meter).
ABS: 200 x 10^9 per minute
PLA: 20 x 10^9 per minute

They are in size of a virus, going into the lung and probably into the blood.
This can in high concentration cause asthma and stuff like that.

I tried to calculate the amount in micrograms per hour is about 1 for PLA and 10 for ABS.

They say: you should use 3D printers only in good ventilatet rooms.

To make it clear once again, i don't want anyone to panic, but it's somehow like a laser-printer, you shoul have an open window or something like that.

Or a encosure whith an active-coal air cleaning or something like this if you want to be "100%-safe"

 

http://forums.robo3dprinter.com/index.php?threads/um.894/

http://oem.bmj.com/content/58/3/211.full.pdf

http://pubs.healtheffects.org/getfile.php?u=893

http://www.sciencedaily.com/releases/2009/10/091005094919.htm

http://www.nature.com/jes/journal/v21/n1/full/jes200959a.html

There are a ton of links and research on this..
point here is that ultra fine particles is nothing new. You breath them in daily.

 

hi sry i have't seen them.

tat's true, but there's no reason to ignore it just because we do it anyway (but in which amount?)
and they are not only small, but really really small and therfore it's difficult to compare.
The amount in micrograms is pretty high if you take into account how small the particels are.

printing abs for 25 minutes in a closed 100sft room (8feet high) leads so about 100 000 particels per cm^3 which is then a very intensiv source of UFP.

as i said, do whatever you like but it should be known.

@Admin: can you integrate this post into the existing one? (I'm sorry i didn't see it bevore).

 

your breath the same amount of these particles when your cooking on a stove.

http://gigaom.com/2013/07/24/3d-printing-is-as-bad-for-your-lungs-as-using-a-stove/

http://www.sciencedirect.com/science/article/pii/S1352231013005086

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=2&cad=rja&ved=0CDgQFjAB&url=http://www.researchgate.net/publication/235962574_Wallace_Fang_HOward-Reed_Persily_Contribution_of_gas_and_electric_stoves_EST_2008_Supporting_Info/file/e0b49514d518663fe9.pdf&ei=T3vtUa24L4PI9QTq9oCgDw&usg=AFQjCNHta44sKlXw7k9TN9w49Q0dE_PMMg&sig2=pVRkwAFF228TFwKD36RF4g

 

yeah if you cook with gas at least.
but i would't cook for hours in a closed room...

and this is after 25 minutes, if you print for 5 hours you'll have a lot more...

 

you breathe this in weather your cooking with gas or electric, its not just the gas that has these particles,

do you sit in front of your printer for 5 hours? do you stay in an enclosed room for 5hours with your printer running? do you have central hvac running in your house?

 

As a student you don't have so much space...
on the other hand you first say: doesn't matter we have it anyway
then you say: doesn't matter if you're not around.
That's true but this was not what i wantet to point out.

I only wanted that everyone is aware of this (like someone who smokes knwos it is not thaaat healthy)
So you should run it at least in a good ventialtet room.

I also said: if you don't care at all you don't have to do anything.

 

nano particles is nothing new.

 

I never said that they're new or invented by a 3D printer...

I didn't know this till today that a 3D printer emmits so much of it.

I hope it's clear now.

 

http://www.google.com/#sclient=psy-ab&q=ultra+fine+particles&oq=ultra+fine+particles&gs_l=hp.3..0i10l4.1190.5389.0.5481.20.18.0.2.2.1.533.2249.12j4j1j5-1.18.0....0...1c.1.22.psy-ab..1.19.1674.LnewdM4WwQ4&pbx=1&bav=on.2,or.r_qf.&bvm=bv.49784469,d.eWU&fp=4b9857829e5690fb&biw=1680&bih=916

 

as i told you, that was absolutely not the point... but maybe my english is not good enough to eyplain this properly.

 

so you mean like: there's a lot of smog, let's male some extra? no just kidding.
but not everyone is that unfortune to live there...
as I said, if you don't care just don't.

 

Thanks.

And I said no one should panic about this. But if you can avoid a hazard (and this is most likely one) then do it, it's not a beag deal to avoid.
I mean it's more difficult to stop breath but "guess what" our body has it's mechanism to remove most of the dangerous stuff that comes along with oxygen, but particels smaller than a virus, is something unknown, I think this is a difference.
Even common smog contains mostly bigger particels (otherwise you'd probably won't see it at all)

But this wasn'r the point.
I only wanted to tell all those poeple (like me) who din't knew this: there's something. Do whatever you think is right about this.

I know that there are other sources etc.

 

I read someplace that plastic does not interact with any of our cells. It passes thru out bodies and does not matabolize. So it shouldn't cause cancer or disease. Anyone else can confirm that?

 

First there is no such thing as "the plastic" it depends. Some interact as a chemical.
Second, sometimes the problem is not the main substance but additives (colours, softener, etc.) or remains from the production.
Some remains and additives are proven to be poisonous or carcinogenic (like phtalates).
Last but not least, sometimes it depends (or could) on the form. Like Asbest which is harmless as a solid, but carcinogenic as a fiber.

If it were that easy the medicinic industry had no need for special plastics to use in the human body (bio compatible)