Abstract:
Draft ambient water quality standards based on designated water uses have been
developed for surface waters of Sri Lanka in the period 1991-1992. These standards
are to be used to evaluate present environmental quality, to prepare environmental
management plans, and to assess environmental impacts due to effluent discharge
from future development activities. Evaluation of present environmental quality
requires water quality monitoring. Prediction of the effect of current and future
effluent discharge requires the use of water quality models - providing the relationship
between waste loads and receiving water quality.