I sit in traffic most mornings in my 44-ton chemical tanker surrounded by cars with just one person in - at least 20 to every truck.

The chemical tanker was close to the accident and saved the two seafarers.

In the 1930s the first tanker was built and in the 1950s they entered the chemical tanker trade.

Since then, the business has expanded slowly, but steadily and has expanded into chemical tanker transport.

Rate per ton arrangements are used mostly in chemical tanker chartering, and differ from lump sum rates in that port costs and voyage expenses are generally paid by the charterer.