4 ms·
Most definitely it's hard to dig into the actual composition of air pollution. But "how much PM2.5 is in the air", while definitely crude, is still extremely us
by ddulaney 4y ago
Most definitely it's hard to dig into the actual composition of air pollution. But "how much PM2.5 is in the air", while definitely crude, is still extremely useful. That said, decent sensors for PM concentration are already pretty cheap (<$100 for a module; ~$100 for a full package), so unless the price is going way down it's unclear how useful this particular innovation is.