That wasn't your property to make unsafe. If it's your own property that you've made unsafe, then sell it, I'd consider it on the buyer, unless you hid that it was unsafe
If it's your own property that you've made unsafe, then sell it, I'd consider it on the buyer, unless you hid that it was unsafe.
No one should be able to build houses or establish habitations on poisonous and polluted area. You can sell poisonous land to someone else but anyone owning poisonous land needs to take precautions to keep people off.
It's like one should be able to sell spoiled food (to eat) or lead contaminated toys. Warning people here isn't enough because some people will be foolish or desperate.