Once you see the term “fecal plume”, you’ll see the need to close the lid.
this post was submitted on 07 Aug 2023
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That assumes that it is worth avoiding a "fecal plume". I would think that useful research would tell us whether such a thing is actually bad for us, beyond sounding gross.
Toilets make essentially a big ass mushroom cloud ofl bacteria when you flush, so yes.
Now that you put it that way, let's take a moment of awareness that toilets in public restrooms rarely have lids, including toilets in restaurants and grocery stores 😱
Yes. Link cites researchers and institution. https://microbiologysociety.org/news/society-news/does-putting-the-lid-down-when-flushing-the-toilet-really-make-a-difference.html
Ninja edit: Does not eliminate but greatly reduces. Appears "Worth it."
The research found that putting the toilet lid down reduced the number of both visible and smaller droplets during and after flushing by 30-60%. However, use of the lid also increased the diameter and concentration of the bacteria in these droplets.
It was also found that airborne microdroplets were detected for 16 minutes after flushing the toilet with the lid down, 11 minutes longer than when the toilet was flushed with the lid up. The researchers suggest that this could be due to particles being re-aerosolised from surfaces rather than being created by the turbulence of the toilet flushing. Alternatively, the researchers suggest that airborne particles could stick together, or agglomerate, which would cause them to remain airborne for longer.
Those are fascinating findings; I wouldn't expect that in some ways lid-down is worse...
It makes sense in some regards because with the lid closed you don't have air flow so therefore you would have microdroplets suspended in the air in the bowl. I'd rather a longer loiter time in the bowl than dispersion into the greater area.
I just re-read your link it to see if it mentions where the sensors are; I'd assumed the sensors were outside the bowl since that's what people are interested in but it doesn't say.
The paper is available, but as a layman the "read full text" path just takes me in a circle.
Related fun fact: norovirus, the most common cause of food poisoning is easily spread when flushing the vomit or poo of someone who has it.