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A comment on Studies increasingly find links between air pollutants and dementia. Parent comment

Re:Studies increasingly find links between air pollutants an... by mrob on Saturday November 01, 2025 @04:12PM (#45784933)
The "PM" in PM2.5 stands for "particulate matter", so it actually is a noun and not just a unit of measurement.
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Re:Studies increasingly find links between air pollutants an... by embedding-shape on Sunday November 02, 2025 @10:19AM (#45790934)
Still doesn't make sense to claim that "PM2.5" is a neurotoxin, depends entirely on what the specific particles are, not the size of them.

What is more dangerous, PM2.5 or PM10? Well, naturally, smaller particles are more harmful to humans usually, but without knowing what the particles are, it's impossible to tell. Just like "5ML is/isn't more dangerous than 10ML", it doesn't really tell us anything.

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