Illustrated is a line graph that provides information about the percentage of river water in 4 distinct regions of the UK, classifying as having good chemical quality over 12-year periods.
From a broad perspective, it is obvious that the rivers in Wales and North Ireland marked the two highest percentages of river waters. Notably, there is an upward trend exhibited for the figure of North Ireland and England, while the reverse is true for Wales and Scotland.
A detailed analysis reveals both Wales and North Ireland recorded identical stability trends in terms of river waters. The former is 95% and the latter is 88% during 6 initial years. In 1998, Wales River declined to 80%, however, North Ireland ascended to 95%
before witnessing a level-off by the end of the period.
As for the case of England and Scotland’s river waters, the 6 initial years of research observed a remarkable hike of 70% and 30%, respectively. After 2 years, a decrement of 30% was seen for the figure for England’s rivers, followed by that of Scotland which demonstrated the opposite tendency, culminating at 60% by 2000. At the end of the period, the river waters of England continued recovery, which double spike to 50%. In contrast, Scotland followed a downward inclination, dipping to 40% in the final years.