Evidence for declining levels of heavy-metals in the Severn Estuary and Bristol Channel, U.K. and their spatial distribution in sediments

• Published in: Environmental pollution (1987) Vol. 143; no. 2; pp. 187 - 196
• Main Authors: Duquesne, Sabine, Newton, Lyn C., Giusti, Lorenzo, Marriott, Susan B., Stärk, Hans-Joachim, Bird, David J.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.09.2006; Elsevier
• Subjects: Applied sciences; Brackish; Contamination; Copper - analysis; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; England; Environmental Monitoring - methods; Environmental Pollution; estuaries; estuarine sediments; Exact sciences and technology; Geologic Sediments - chemistry; Grain-size fraction; heavy metals; Heavy-metal; industrial wastes; Lead - analysis; Marine; Metals, Heavy - analysis; Natural water pollution; Nickel - analysis; Particulate Matter; particulates; Pollution; Pollution sources. Measurement results; Pollution, environment geology; Rivers; seasonal variation; Seasons; Seawaters, estuaries; Sediment; sediment contamination; Soil and sediments pollution; spatial distribution; summer; Suspended particulates; Time Factors; Water Movements; Water Pollutants, Chemical - analysis; water pollution; Water treatment and pollution; winter; Zinc - analysis; United Kingdom; Great Britain; Europe; England; British Isles, Bristol Channel; ANE, British Isles, England, Severn Estuary; British Isles, England, Severn Estuary; ANE, British Isles, Bristol Channel; Heavy-metal; Sediment; Suspended particulates; Contamination; Grain-size fraction; Fractionation; Estuaries; Sediments; Heavy metal; Tide effect; Suspended particle; Particle size distribution; Spatial distribution; Seasonal variation; Sea current; Water pollution; Concentration distribution

Levels of heavy-metals (Cd, Cu, Cr, Ni, Pb and Zn) in suspended particulate and in surface and subsurface sediments were determined at seven locations in the Severn Estuary and Bristol Channel. Sediment metal concentrations were highest at sites close to industrial centres but levels have decreased...