Water quality in the firth of forth |
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Authors: | P A Read K J Anderson J E Matthews P G Watson M C Halliday G M Shiells |
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Institution: | Department of Biological Sciences, Napier College, Colinton Road, Edinburgh, UK |
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Abstract: | A long-term programme of water quality monitoring has been undertaken in the Firth of Forth to assess the environmental impact of a new sewage treatment scheme for the City of Edinburgh. The sewage scheme reduces the suspended solids content of the liquid effluent by approximately 60% and achieves a lowering of the concentration of materials in solution through more efficient dilution and dispersion. The application of a sea water quality index to water quality data has demonstrated a significant improvement along the Edinburgh coastal zone, resulting mainly from a reduction in suspended solids, biochemical oxygen demand, primary nutrients and faecal contamination. There has been no apparent change in the levels of trace metals. |
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