Until the mid
1960s, it was also widely used as a cleaning fluid, both in industry,
as a degreasing agent, and in the home, as a spot remover and as fire
extinguisher There is some evidence that exposure to carbon
tetrachloride causes liver cancer in humans The most common effects
are dizziness, light headedness, nausea and vomiting, which can cause
permanent damage to nerve cells In severe cases, these effects can lead
rapidly to stupor, coma, unconsciousness or death