Scottish river quality improves

The quality of Scottish rivers continued to improve between 1985 and 1990, according to a summary of the 1990 quality survey released by the Scottish Office in March. The advance continues the trend recorded since surveys began in 1968, in contrast to the 10-year decline in England and Wales.

The National Rivers Authority's 1990 survey of water quality in England and Wales showed a 4% net decline between 1985 and 1990 (ENDS Report 201, p 6). The previous five-year survey also reported a deterioration.

In Scotland the situation is quite different (see table ). The data show a continued improvement throughout the 1980s.

In England an

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