Nuclear waste, we are told, caused many deaths and cases of cancer.
In its most dangerous form - called hexavalent chromium - the wastes can cause cancer and other health problems.
These hazardous wastes can cause potential health risks to humans and the environment.
The waste caused damages to the health of almost 100,000 people in the nearby areas.
They fear that putrescible waste would attract vermin and cause odors.
The waste in the tunnels caused some safety concerns.
You will need to provide the Environment Agency with a risk assessment to show that the waste will not cause pollution.
You or the landfill operator may need to provide us with a risk assessment to show that the waste will not cause pollution.
The fear among some scientists is that the waste could leak into water supplies, produce and animal feed and eventually cause cancer in humans.
The team figures the spilled waste caused the local animals to mutate into dinosaurs.