Abstract:
This study was done to detennined distribution and concentration of phosphorus in
Terengganu River Estuary. Two sampling was conducted during this study. Water
samples were collected during pre-monsoon season (10 September 2007) and Northeast
monsoon ( 16 November 2007). 10 stations were chosen for pre-monsoon while 9 stations
in monsoon. Orthophosphate was detennined by Acid Ascorbic Method while total
phosphorus by Persulfate Digestion Method. For pre-monsoon, average mean
concentration orthophosphate was 2.219 ± 0.979 µM. Highest concentration was detected
at Station 8 which 3.618 µM and lowest was 1.145 µM at Station 10. Average mean
concentration total phosphorus was 3.958 ± 0.637 µM. Station 7 has the highest
concentration with 4.619 µM while lowest 2.653 µM at Station 10. For monsoon, average
mean concentration orthophosphate was 1.125 ± 0.109 µM. Highest concentration is
Station 9 which 1.277 µM and lowest was 0.953 µM at Station I.
