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Title: River Yealm catchment river water quality classification 1990
Author: National Rivers Authority South West Region
Document Type: Monograph
Annotation: Environmental protection report - River Yealm Catchment - river water quality classification 1990
Monitoring to assess the quality of river waters is undertaken in thirty two catchments within the region. As part of this monitoring programme samples are collected routinely from selected monitoring points at a predetermined frequency per year, usually twelve spaced at monthly intervals. Each monitoring point provides data for the water quality of a river reach (in kilometres) upstream of the monitoring point. This report presents the river water quality classification for 1990 for monitored river reaches in the River Yealm catchment.
Publisher: National Rivers Authority
Publication Date: 1991
Publication Place: Exeter
Subject Keywords: RiversWater quality surveysMonitoringClassification
Geographic Keywords: EA South WestTamar catchment
Extent: 5; + appendices
Total file downloads: 277

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