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Title: River quality in England and Wales : a report of the 1990 survey
Author: National Rivers Authority
Document Type: Monograph
The 1990 River Quality Survey reports the water quality of rivers, canals and estuaries in England and Wales. The last survey was in 1985. The survey was carried out by the National Rivers Authority (NRA). The NRA is a public body whose duty is to protect, and improve the water environment in England and Wales. The NRA was set up under the 1989 Water Act. The Survey found that 89% of rivers were of Good or Fair Quality and 2% were Bad. For canals, 90% were Good or Fair, while 1% were of Bad Qiality. Ninety-two percent of estuaries were of Good or FcuLr Quality and 3% were of Bad Quality. Since 1985, there has been a downgrading of 15% of the total river length, while 11% has improved. Comparable figures for canals are 16% and 8%, and for estuaries, 3% and 1%. The 1990 River Quality Survey is the latest in a series carried out since 1958 to show the state of rivers, ranals and estuaries in England and Wales. The last survey was in 1985.
Publisher: National Rivers Authority
Publication Date: 1991
Publication Place: Bristol
Subject Keywords: Water qualityWater monitoringRiversCanalsEstuariesDissolved oxygenPollutant loadRiver Quality ObjectivesClassification
Geographic Keywords: Environment Agency regionEnglandWales
Extent: 46
Total file downloads: 316

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