potatoes and onion storage no no

[BDG]

Yes, it is ethylene, bananas give a lot of it out as do other things when ripening. Hydrogen sulphide can be produced when things that have turned to sludge decompose in certain circumstances. Potatoes and onions may be mentioned as they turn to a sloppy mess that could form and exclude oxygen. It is compounded when lots are stored together, don't check through regular and poor examples of crop saved.

I think you would need half a ton - ton at least in a confined space for it to get deadly.