Gives type of pollution (e.g. type of oil with viscosity and pour point, packaged or bulk chemical, sewage). For chemicals, the proper name or United Nations number, if known, should be given. Appearance, e.g. liquid, floating solid, liquid oil, semi-liquid sludge, tarry lumps, weathered oil, discolouration of sea, visible vapour should also be given as well as any markings on drums, containers.

Venezuela crude. Viscosity 3.780 Cs at 37.8°C. Rather viscous