>Toxins over large timescales.(also I’m assuming they aren’t the only thing in the landfill) Most modern plastics won’t leech toxins onto your food in the short time it takes from field to fridge.
What about the plastic wrapped foods that last for years? Are those just low in toxin and the plastic clamshell packaging for fruits/vegetables loaded with toxins?
>Errors in foundations or any permeable gaps can still cause leachate to escape. There is also the concern of gases escaping during the lifetime of landfills as well.
Without getting more specific about what what "toxins" consistns of, it's hard to know assess the actual risk of them. eg. for BPA wikipedia says:
>Despite a rapid soil and water half-life of 4.5 days, and an air half-life of less than one day, BPA's ubiquity makes it an important pollutant.
It's probably fine even if it leeches out into a landfill, and there's some cracks? By the time it leaks out it would have degraded already.
>We have a limited amount of land and that amount is expected to decrease as sea levels rise.
America is definitely not running out of landfill space anytime soon. For asia/europe incineration is an alternative
>I think landfills don’t provide much bang for buck in terms of land value as opposed farms
That sounds like a non-issue given that we have a functioning market for land?