Claim · draft · confidence 0.5
Generated from the Hyphae knowledge graph.
Statement: CO concentration ‘exceeding 1000 ppm’ downwind of an operating bloomery furnace in calm conditions
Needs verification (non-blocking)
The prior version of this node self-flagged this number as ‘a general estimate … not directly cited from a measurement study.’ No direct measurement from experimental bloomery reconstructions (Sauder & Williams 2002, Crew 1991, or similar) has been located. The claim has been removed from the mechanism text and replaced with a qualitative statement (‘can reach hazardous levels’). If a direct measurement is needed, seek experimental-archaeology papers that include downwind air quality monitoring during reconstructed smelt operations.