from The Open University
Alternatively you can skip the navigation by pressing 'Enter'.
Wastemen: One Man's Rubbish...Wednesday, 6th May 2015 23:50 - BBC TwoThe value of waste has never been higher - but it's not just financial value; the Wastemen are aware of the emotional... Read more: Wastemen: One Man's Rubbish, One Man's Treasure
Thinking Allowed: Gentrification and division of domestic labourAvailable until Saturday, 30th April 2016 14:00Dr Melissa Butcher, lecturer in Human Geography at The Open University joins this episode of Thinking Allowed to... Read more: Thinking Allowed: Gentrification and division of domestic labour
Free course: Childhood in the Digital AgeOpenLearn is a fantastic place to gain understanding of what to expect from Open University study... Read more: Free course: Childhood in the Digital Age
Take the photographic memory testCan you capture scenes just by looking at them? Find out with our photographic memory test. Launch now: Take the photographic memory test
Facilitating learning in practice[BETA ] Are you interested in mentorship or looking to develop your mentorship skills? In... Try: Facilitating learning in practice now
Succeed with maths – Part 1[BETA] If you feel that maths is a mystery that you want to unravel then this short 8-week course... Try: Succeed with maths – Part 1 now
Water and human health
Water is a natural resource that is vital for human survival and health, although only...
Water is a natural resource that is vital for human survival and health, although only a tiny fraction of the Earth's supply is available to humans and terrestrial animals. In this unit we look at threats, such as pollution, to water's capacity to support life around the world.
By the end of this unit you should be able to:
- define and use in context, or recognise definitions and applications of, each of the terms printed in bold in the text;
- identify some of the reasons why clean, fresh water is an increasingly scarce resource for many people in the world;
- explain what is meant by the bioaccumulation of xenobiotic chemicals and identify the implications that this has for what people can safely eat;
- distinguish between the effects on human health of high and low levels of environmental pollution by nitrogen compounds;
- explain what is meant by an endocrine disruptor.
- Current section: Introduction
- Learning outcomes
- 1 Water as a global resource
- 2 The global water cycle
- 3 The distribution of water and its use by people
- 4 Chemical pollution of water
- 4.1 Levels of toxic substances
- 4.2 DDT: a classic case in ecotoxicology
- 4.3 Mercury
- 4.4 Nitrogen: a developing threat to health
- 4.5 Endocrine disruptors
- 4.6 Postscript to Section 4
- 5 Unit summary
- 6 Self-assessment questions
Water and human health
This unit examines why water shortages are predicted as a result of the world's growing population and the importance of access to clean and safe drinking water in public health. It looks at the distribution of water throughout the world and problems with contamination, topics of wide general interest.