Local fishermen wear non protective clothing without safety measures, for the Dalian oil spill clean-up effort. Crude oil contains significant quantities of polycyclic aromatic hydrocarbons (PAHs) and other dangerous chemicals that do not readily dissolve in water. Hydrocarbons can be absorbed by the human body via inhalation, ingestion or through direct contact with skin. Greenpeace strongly urges the government to send professional clean-up staff with safety equipment to work on the oil spill.