The bar chart illustrated to proportional of river water quality in Uk rivers that is seperated as having good chemical quality in 1990 to 2002.Overall,Uk mainly seperated the river in areas namely Wales,Scotland,Northern Ireland as well as England.Mainly in two areas where a significant modifies occured, these were Northern Ireland such as England,there was almost no change in Wales and Scotland.
UK separated river water for Northern Ireland for about 92% 2 years later it was a declined for about 10% and in 1994 it was abrupt grow as well as next year’s separated river water percentage was the declined by somewhat 85 percent In England, the river water distributed in the country was quite little at the beginning, that is, it was 85 percent, as well as after 4 years, this figure changed a little, that is, it reached 86 percent and after two more years, it decreased again by a small amount, . by 84percent, and after another two years, this indicator increased significantly, by 90 percent, such as after two more years, this indicator remained stable.
In 1990, the UK survey of river water quality in Wales was 97% and in Scotland it was 95%, and in both countries it remained stable until 1998. From 1998 to 2002, river water quality in Wales fell by 10%. 5 percent riverwater quality decreased such as remained stable from 2000 to 2002.