For things that have had contents with volatile oil like thinners they should be left for a few days to completely evaporate it before being disposed of as non-flammable waste.
少女たちは縛り上げられて地下室に放置された。
The girls were trussed up and left in a cellar.
駅の近くの歩道には何処に行ってもおびただしい数の自転車が放置されているのが見かけられる。
Wherever you go, you see a lot of bicycles left on sidewalks near stations.