Webber, Dale, F.
Life Sciences (Botany and Zoology); Faculty of Pure and Applied Sciences
The water quality of Kingston Harbour: Some sources and solutions
Bardowell, Merlene E.; Vassel, Angela R.
Water: Proceedings of the 7th Annual National Conference on Science and Technology
Date of Meeting
22-24 February, 1994
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Information and Coordination Services Division, Scientific Research Council
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Date of Copyright
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An assessment of water quality of Kingston Harbour and its sources was carried out between December 1992 and December 1993 to determine the level of pollution. Based on samples from 28 stations within the Harbour, 21 stations in rivers and gullies which discharge into the Harbour, and enclosure experiments conducted using water collected from 4 sites outside Kingston Harbour, used temperature, salinity, light penetration, dissolved oxygen, BOD, a range of nutrients and the phytoplankton community as indices for water quality assessment. While the water quality of the outer Harbour seemed marginally improved, the waters of Hunts Bay and the New Port West/Gordon Clay area had deteriorated dramatically over the last 20 years. Enclosure experiments simulating the response of phytoplankton to nutrient changes indicated a 30 to 50% improvement of water quality with the removal of only nitrates from the incoming sources. Marginally better water quality resulted if both phosphates and nitrates were removed. As the water quality of the Harbour deteriorates, the potential for further reduction in water quality in the South Coast shelf becomes a greater threat....