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Comment by clairity | Hacker News Reader
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clairity
·
nox is a combustion byproduct so probably that?
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lmm
·
Yeah I would assume it was coming mostly from nearby cars.
PurpleFoxy
·
The crazy thing is there are no nearby cars. There is a highway about 1.5km away which I assume it must all blow from. There is nothing else within 1.5km
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