by Abir Al-Tabbaa
In the UK, 25 million car tyres and 3 million truck tyres are discarded each year. Of this 18% is used for retreading, 6% for regeneration (eg granulation, carbon/oil extraction and steel recovery) and 9% is incinerated. This leaves 67% which is stockpiled, landfilled or illegally dumped, although the problem is far worse in the US. The best way to reduce the environmental and health hazards associated with scrap tyres is to minimise, and ultimately eliminate, stockpiling.