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A comment on Indoor wood burning raises women’s lung cancer risk by 43%. Parent comment

Re:Indoor wood burning raises women’s lung cancer risk by 43% by simonsarris on Sunday October 08, 2023 @07:27PM (#37815353)
> There’s no rule of airflow which says air only flows upwards.

When you are burning a fire there is a rule, it's called the stack effect, it is the very point of having a long (and ideally straight) chimney.

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Re:Indoor wood burning raises women’s lung cancer risk by 43% by graeme on Monday October 09, 2023 @01:41AM (#37817219)
You’d be a fool to burn a fire in your home if your fireplace has no chimney. But that doesn’t mean all the smoke goes upwards.

Surprisingly I couldn’t find a single study which measured PM 2.5 from fireplaces with chimneys. However, a study on wood stoves (substantially better sealed) found a 30% rise.

Which is actually less than I would have predicted. I’d still expect a fire to be higher, but I’m open to being wrong. If I’m ever going someplace with a chimney and fire I’ll bring a pm 2.5 meter for fun.

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