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Title: National marine baseline survey 1995 : littoral cell 8 : Severn Estuary to St David's Head
Author: Environment Agency - National Centre for Environmental Monitoring and Surveillance
Document Type: Monograph
This littoral cell extends from the Severn Estuary to St Davids Headland. The water quality is influenced by the complex inputs around the Upper Bristol Channel and by further industrial regions, in particular Milford Haven. No baseline sampling sites recorded concentrations in excess of the Environmental Quality Standards for dissolved metals. The Newport Deep sampling station recorded high winter nutrient concentrations, for example TON equal to 3241 microg/l, with corresponding elevated concentrations of Chlorophyll-a, up to 5 microg/l. Other regions which showed high nutrient concentrations, for example the Mumbles, did not show high Chlorophyll-a concentrations. Most sites show concentrations of y-HCH above 0.001 microg/l, but the total HCH value does not exceed the EQS. It also provides CASI imagery.
Publisher: Environment Agency
Publication Date: 1995
Publication Place: Bath
Subject Keywords: Coastal watersWater qualityAerial surveysMonitoringChemical compositionMetalsNutrientsChlorophyllsSuspended solidsEstuariesCoastal and oceanic landforms
Geographic Keywords: WalesSevern Estuary
Extent: n.p. [28]
Total file downloads: 296

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