> Draconian? It depends on whether air quality matters or not. That is a fairly black and white thing - either it matters or it doesn't. Nothing measured on an

> Draconian? It depends on whether air quality matters or not. That is a fairly black and white thing - either it matters or it doesn't. Nothing measured on an analog scale is black and white. Something is not "safe" or "dangerous" just because it is on one side or another of a semi-arbitrary limit.