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The image consists of a line graph titled "River Water Quality in the UK," depicting the percentage of river water with good chemical quality from 1990 to 2002 across four regions: Wales, Northern Ireland, England, and Scotland. In 1990, Wales had 75%, Northern Ireland had 45%, England had 70%, and Scotland had 80%; in 1992, Wales had 75%, Northern Ireland had 45%, England had 65%, and Scotland had 85%; in 1994, Wales had 85%, Northern Ireland had 45%, England had 75%, and Scotland had 90%; in 1996, Wales had 85%, Northern Ireland had 65%, England had 85%, and Scotland had 85%; in 1998, Wales had 90%, Northern Ireland had 45%, England had 85%, and Scotland had 85%; in 2000, Wales had 95%, Northern Ireland had 55%, England had 85%, and Scotland had 85%; in 2002, Wales had 95%, Northern Ireland had 65%, England had 90%, and Scotland had 80%.
Given the complexity of the image, the above description may not be entirely accurate.
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The given chart indicates the information of river water considered as high quality in four different parts of the UK during a 7-year period starting from 1990.
Overall, as can be seen from the graph, two trends could be recognized which are upward and downward. It is also highlighted that although it is Wales that had the highest figure in 1990, it was surpassed by Northern Ireland in the last year.
To begin with, in the starting year, the river water samples with good chemical quality in Wales and Northern Ireland were roughly 95% and 85% respectively . After 7 years, the water data of the latter gradually uplifted by 10% while the opposite trend was witnessed in the former’s figure.
Additionally, the proportion of high quality water of rivers in England which accounted for approximately 45% in 1990 moderately rose to just below 70% before steeply declining by about 40% and hitting its lowest point in 1998. Similarly, a three-fold climb from above 20% was experienced in those figure of Scotland, followed by a rapid decrease to 40%, which was roughly 10% lower than England in 2002.
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