Oxygen consumption rate of sediment microbes as a pollution indicator
1997
Sombat Inkong | Sompop Rungsupa | Sirirat Rengpipat | Piamsak Menasveta (Chulalongkorn Univ., Bangkok (Thailand). Aquatic Resources Research Inst.)
Status of organic wastes pollution in the intertidal area along the east coast of the Upper Gulf of Thailand was studied by using "Oxygen Consumption Rate (OCR) of sediment microbes" as the indice. Ten different stations were selected and monitored from August 1994 to June 1995. The results showed that OCR was feasible to be used for determining organic wastes pollution status. The methodology is more advanced, rapid, simple, and low cost. OCR was also directly related to other water qualities parameters such as dissolved oxygen, biochemical oxygen demand, sulfide content and oxidisable organic matter and total bacteria in the sediment. Average OCR along the east coast of the Upper Gulf of Thailand in this study ranged from 0.0389 to 0.1418 mg O2/gm wet weight sediment/day. Sriracha showed highest OCR (0.1182+-0.0237 mg O2/gm wet weight sediment/day). Cholburi central district, Rayong central district, Sichang Island, Banpae, Pattaya, Laemchabang, Bangsarae, Bangsaen and Mabtapud showed lower OCR.
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