Eels were exposed to ground catalytic converter material for six weeks.
Yet, of the few car manufacturers so far offering any sort of catalytic converter, most are charging for it.
As of 1995, all new cars are required to have a catalytic converter, and lead was eliminated from fuels in 1996.
The exposure was performed using 20 g ground catalytic converter material, which was added to 100 l water at the beginning of the experiment and after each water replacement.
In addition, modern catalytic converter technology takes care of the aromatics.
Obviously technology could be developed further, but it would require the use of catalytic converter technology, which is extremely difficult in a marine environment.
The three-way catalytic converter which will be compulsory on new vehicles from 1992 does nothing to limit the emisson of carbon dioxide.
However, the estimated cost of an optional catalytic converter on a new car is approximately £350.
