3 ms·

It is, but you still regularly see people showing off their latest 3d printer which is sitting in a kids bedroom running all day, or their office. Often when q

by esskay 4y ago

It is, but you still regularly see people showing off their latest 3d printer which is sitting in a kids bedroom running all day, or their office. Often when questioned, the existance of it being in a case or there being a cheap air purifier in the corner of the room is cited as the reason why its 'fine'.

fasthands9 4y ago
I do feel like we dont really have sense of effects of particulate matter on the body. How does the risk of this compare to walking down a street with lots or running ICE cars? Or when you go into a basement and can smell the natural gas burning - is that a similar risk? If you told me being in the same room as a PLA printer was 10x worse I would believe it. If you told me being next to a car for 5 seconds was 10x worse I'd believe it. As far as I've read we dont have great metrics.
- nick__m 4y ago
  In "ICE cars" the biggest sources of particulate matter are the tires and brakes¹, don't electric car have those too ? 1) https://www.researchgate.net/publication/317425487/figure/fig3/AS:613874445344789@1523370481529/Particulate-matter-formation-PMF-of-different-vehicle-technologies-based-on-10.png https://www.researchgate.net/publication/317425487/figure/fi...
  - fasthands9 4y ago
    Good point! I was mistaken. Though I think larger point stands that its very hard to know risks of different particulate sources (like brakes).
  - evan_ 4y ago
    Tires yes, but since EVs use regenerative braking at least some of the time I would think they'd be slightly better in that regard. Regenerative braking does not engage the brake pads.
- 3pac 4y ago
  We really do not have a sense of these things. We are often overconfident in our limited senses. I was being poisoned by carbon monoxide from my oven and did not realize it until it was too late. I told myself "it cannot happen to me". Thank God for a few related HN comments, and a hunch to buy a CO meter.

by esskay 4y ago

fasthands9 4y ago

I do feel like we dont really have sense of effects of particulate matter on the body. How does the risk of this compare to walking down a street with lots or running ICE cars? Or when you go into a basement and can smell the natural gas burning - is that a similar risk? If you told me being in the same room as a PLA printer was 10x worse I would believe it. If you told me being next to a car for 5 seconds was 10x worse I'd believe it. As far as I've read we dont have great metrics.

nick__m 4y ago
In "ICE cars" the biggest sources of particulate matter are the tires and brakes¹, don't electric car have those too ? 1) https://www.researchgate.net/publication/317425487/figure/fig3/AS:613874445344789@1523370481529/Particulate-matter-formation-PMF-of-different-vehicle-technologies-based-on-10.png https://www.researchgate.net/publication/317425487/figure/fi...
- fasthands9 4y ago
  Good point! I was mistaken. Though I think larger point stands that its very hard to know risks of different particulate sources (like brakes).
- evan_ 4y ago
  Tires yes, but since EVs use regenerative braking at least some of the time I would think they'd be slightly better in that regard. Regenerative braking does not engage the brake pads.
3pac 4y ago
We really do not have a sense of these things. We are often overconfident in our limited senses. I was being poisoned by carbon monoxide from my oven and did not realize it until it was too late. I told myself "it cannot happen to me". Thank God for a few related HN comments, and a hunch to buy a CO meter.