The water quality of Brunei Bay, Malaysia, subsequent to receiving iffluent from a pulp and paper mill,
was monitored. Conventional water quality parameters such as dissolved oxygen, suspended solids, and
biochemical oxygen demand were used as indicators to compare the present status of the bay water quality
with that of the baseline. Generally, data gathered during the first 16 months of the mill operation did not
indicate marked changes in the bay water quality. Levels of suspended solids, total organic carbons, and
1, 1-dichlorodimethyl sulfone in the bay water were used as indicators in the determination of dispersion
pattern of the effluent in the coastal areas of the bay