Other than production itself. I was assuming that was our starting point. The TFA mentions some sources but does not limit exposure to only these indirect sources, nor does the EPA study.
> but exposure over a long time does increase cancer risk and fatality risk
Which is relative to the actual industry. The plants where formaldehyde is produced is likely highest in danger. It's also somewhere that you can easily see some changes in production process could actually measurably save whole numbers of lives within the next decade.
Likewise since it's produced and added intentionally to glues and finishes it's entirely possible it could be eliminated from the supply chain particularly in products that diffuse it out poorly before reaching the customer. Where not possible the products could be held and treated in such a way to extract and filter out the compound.
It's just weird to go "well.. the first world apparently requires human sacrifice" especially in the face of so many options. Anyways.