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Title: River quality : July 1992 - June 1993
Author: National Rivers Authority
Document Type: Monograph
572 sites were monitored to assess the 3820 km of watercourses that have quality objectives in the Thames region. Only 36 reaches (245 km or 6.4% of total) failed to meet their set objectives. This continues the general trend of improvement, for eg, in the last period 52 reaches failed to meet their objectives and in the period before 62 reaches failed. 352 reaches (2248 km or 58.8% of total) achieved better than their objective. This is also an improvement on the last period when 300 reaches (1970 km or 51.6%) achieved better than their objectives. The length of river achieving class 1A has also increased since the last period - 1601 km (41.9%) compared to 1243 km (32.5%) previous.
Publisher: National Rivers Authority
Publication Date: 1993
Publication Place: Bristol
Subject Keywords: RiversEnvironmental monitoringWater qualityRiver Quality ObjectivesRiver fisheriesClassification
Geographic Keywords: Thames
Extent: n.p. [37]
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