It is vital that we use water wisely and respect it as a precious resource. Water is an essential part of our lives. It is important to be aware of how we use water and what we can do to assist with water conservation. Our environment is under great stress facing issues such as decreasing river flows, soil salinity and deforestation.
Part One: Water use by location
Task One: Graphing household water use by state and territory
The table below contains the percentage of household water used in different rooms and places within households in 2000-2001. Data is rounded to whole numbers.
Note: Data not available for Tasmania and the Northern Territory.
|TABLE 1: PERCENTAGE OF HOUSEHOLD WATER USAGE 2000–2001|
Source: Australian Bureau of Statistics, Water Account, Australia, May 2004 (cat. no. 4610.0)
1. Using data in Table 1 draw a bar graph of household water usage for each state and territory.
2. By looking at the graphs compare your state or territory with others. Describe any differences and similarities.
3. Suggest reasons for any differences between states and territories.
Task Two: The Effect of Water Efficient Products on Water Use
The column graphs below show percentage water use by state and territory from Table 1.
Figure 1: Percentage of Bathroom Water Use
Figure 2: Percentage of Toilet Water Use
The following graph uses data from Australian Bureau of Statistics, Environmental Issues: Water Use and Conservation Table 9 (cat. no. 4602.0.55.003).
Figure 3: Percentage of Water Saving Products by State and Territory
4. Considering the percentage of households with water saving products such as a water efficient shower head and dual flush toilet, comment on water use in the bathroom and toilet for the various states and territories.
Part Two: Calculating the Actual Volume of Water Use
The table below shows the volume of water used per household (kilolitre/household) for the year 2004–2005, 2000–2001 and 1996–1997.
Table 2: Volume of water consumed per household (kL/household)
VOLUME OF WATER CONSUMED PER HOUSEHOLD (kL/household)
|2004 - 2005||219||209||323||244||468||372||399||248|
|2000 – 2001||252||251||372||286||497||326||420||298|
|1996 – 1997||253||263||347||236||341||181||585||280|
Source: Australian Bureau of Statistics, Water Account, Australia, May 2004, Table 7.8 (cat. no. 4610.0) and Australian Bureau of Statistics, Water Account, Australia, May 2000-1 Table 9.6 (cat. no. 4610.0)
5. Draw a side-by-side column graph showing the volume of water consumed by each household by state or territory. Include all three sets of data on one graph using a different colour for each.
6. Comment on the change in the volume of water use over time.
7. Using Tables 1 and 2, calculate how many kL of water (i.e. the volume) each household used outdoors in 2004 - 2005 for each state and territory. Example: In 2000–2001, each household in NT used a total of 620kL and 25% of this was for outdoor use. Therefore, outdoor use is 620 x 0.25 = 155kL.
|kL 2004 -2005|
8. Choose a graph type and graph the volumes calculated in the previous question. Label the graph and axes appropriately. Comment on the important features of the graph.
9. A kilolitre is the amount of water that would fill in one cubic metre (1m x 1m x 1m). 1m3
Using 2004-05 data for your state or territory from Table 2, show the total amount of water used as a cube with dimensions correct to 1 decimal place. For comparison draw a scale drawing of yourself next to the cube.
10. Based on all the information, create a list of suggestions that will help reduce water use.