Geoscience Reference
In-Depth Information
assessed. There are methods available to control
water quality, whether through treatment at point
sources (e.g. waste water treatment) or control
throughout a catchment using land use planning.
FURTHER READING
Chapman, D. (ed.) (1996)
Water quality assessments:
a guide to the use of biota, sediments and water in
environmental monitoring
(2nd edn). Chapman & Hall,
London.
A comprehensive guide to water-quality assessment.
Dodds, W.K. (2002)
Freshwater ecology: concepts and
environmental applications
. Academic Press, San
Diego.
A comprehensive introduction to water quality
impacts on the aquatic environment.
Gray, N.F. (1999)
Water technology: an introduction for
environmental scientists and engineers
. Arnold, London.
An introduction to the engineering approach for
controlling water pollution.
ESSAY QUESTIONS
1
Explain the Hjulstrom curve and
describe its importance for suspended
loading in a river.
2
Discuss the importance of the BOD
5
test
in the assessment of overall water
quality for a river.
3
Compare and contrast the direct
measurement of water quality
parameters to the use of proxy
measures for the overall assessment
of water quality in a river.
4
Explain the major causes of enhanced
(cultural) eutrophication in a river
system and describe the measures
that may be taken to prevent it
occurring.
5
Explain how residence time of water
in a catchment can influence the water
quality response to land use change.
