"Linoleum is a floor covering made from materials such as solidified linseed oil (linoxyn), pine resin, ground cork dust, sawdust, and mineral fillers such as c

"Linoleum is a floor covering made from materials such as solidified linseed oil (linoxyn), pine resin, ground cork dust, sawdust, and mineral fillers such as calcium carbonate, most commonly on a burlap or canvas backing." Not sure if there's anything that's been shown to be a problem in there, but it doesn't seem to involve any pthalates. But yeah, I'd personally just go with a smaller house with hardwood, rather than a larger one made of crap like vinyl planking (and that's what we did, in practice).