Whilst benzene remains a very important building block in the
chemical industry, concerns over its effect on health have led
to steps being taken to reduce the amount released into the atmosphere.
Research chemists no longer use it, and its use as a solvent in
industry is carefully controlled.
Plants producing and using benzene regularly test all pipe joints
for leaks, and use safety valves, flanges and gaskets of the highest
quality. Emissions on industrial sites are now at very low levels,
and will continue to fall.