Surfing is a thrilling and somewhat dangerous sport, with risk of injury from the sheer force of large waves. But more dangerous for British surfers is the pollution of the water around some of Britain's best surfing beaches.
1 Distinguish between a bacterium and a virus.
2 a) Which type of organism seems to be responsible for the infections of surfers? b) Where have these organisms come from?
3 Suggest two things that help to kill viruses in sea water.
4 How do some of the beaches worst affected by viruses still manage to satisfy EC water standards?
5 What can be done to reduce the number of viruses in sea water to acceptable levels?
6 How can the surfers protect themselves from infection?
