carcinogens in australian agricultural product, page-2

http://www.ecospecifier.org/knowledge_base/glossary

Benzene:
Aromatic readily absorbed through the skin, eliminated very slowly. Low-level chronic exposure (e.g. by painters) can lead to liver damage and possibly cancer (Thurtell L. ed., 2003). MINERAL TURPS can contain up to 20% BENZENE in Australia.

Perhaps someone was using Mineral Turps to clean up some paintwork near to Cougar's Kingaroy plant and 'inadvertently' spilled a bit onto the ground????