Device for oil spill detection on water surfaces

An electrochemical device for oil spill detection on water surfaces based o n conductometric principles is described measuring the abrupt big change of resistivity if the water level is covered by an oil layer. This detection device consists of two copper wire electrodes fixed on a support floating o n the water layer and connected by cable with the monitoring unit giving a two level answer: "Yes" or "No", on ev. oil spill presence. The system is u sed on many places in this country for purposes of river water surveillance .