Chemical quality of rivers and canals: by country: Social Trends 34
Chemical quality of rivers and canals: by country: Social Trends 34
Dataset Name:
ST341104
Type of Dataset:
Spreadsheet
Title:
Chemical quality of rivers and canals: by country: Social Trends 34
Last Updated:
28/1/04
Description:
Rivers and canals in the United Kingdom are generally in a favourable condition, and both chemical and biological quality have improved in recent years. In particular, the chemical quality of rivers in England improved markedly between 1990 and 2002, with 93 per cent of river length classified as being in good or fair condition by the later date. This was, however, still the lowest such percentage for any of the constituent parts of the United Kingdom: Wales had the highest proportion of rivers in good or fair condition in 2002, at 98 per cent.
Improvements in water quality since 1990 are thought to be largely attributable to the investment programme of the water industry and pollution control measures. However, the chemical quality of rivers and canals is not only affected by human activity. Lower than average rainfall and low river flows can also have an adverse effect on river water quality by reducing the dilution of pollutants.
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