We can all relate to water. We know we need it to survive – indeed, the early great civilisations of Egypt and Mesopotamia were centred on river valleys where there was a plentiful supply of fresh, clean water.
When we take water into our bodies, it is used in several ways. For example:
You can see from the above that even if you didn’t move an inch, your body would still need water to keep you alive.
Water is a fascinating subject, encompassing chemistry, biology and physics. Apart from keeping us alive, water is used extensively in industrial processes, for recreation and for transport. It is something we can’t do without.
The water we use for domestic purposes ought to be free from contaminants, yet water pollution is a major problem in many countries. According to the World Health Organization (WHO, 2002), about 1.7 million people die each year due to unsafe water, sanitation and hygiene. In this text we consider in outline the major sources of pollution and the effect that pollutants have on the aquatic environment.
The activities located throughout the text will help you to review and remember what you have read.
This OpenLearn course is an adapted extract from the Open University course T868 Environmental monitoring and protection .
OpenLearn - Effects of pollutants on the aquatic environment Except for third party materials and otherwise, this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence, full copyright detail can be found in the acknowledgements section. Please see full copyright statement for details.