chemical and microbiological qualities of the east river (dongjiang) water, with particular reference to drinking water supply in hong kong.currently, about 80% of drinking water in hong kong is abstracted from the east river (dongjiang) that is located in the mainland side of china. literature records and monitoring results of 2000-2001 confirmed that the lower section of the dongjiang had been contaminated by organic and inorganic pollutants. statistical analyses showed that the increases of total cadmium, copper and zinc in the surface layer of sediment of hong kong reservoirs from 1994 to 2001 were positively correlated (signifi ...200312867174
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