Coal used for this process is called steaming coal. In 2008 77% of the electricity generated in Australia was produced by coal fired power stations (includes black and brown coals). Some types of black coal are suitable for coke-making.
These symptoms may occur in the back, leg and down to the foot. The most common nerve irritation originating from the lumbar spine is Sciatica. This is an irritation of the sciatic nerve, which can produce pain, numbness, and weakness down the leg along the areas innervated by the sciatic nerve.
This information can help to decide what level of damage there has been to the nerve which can help in planning further treatment and giving information on the potential outcome of the injury. What is the outcome after nerve repair? The result of a nerve injury depends on many variables as detailed above.