The reaserch on analysis water quality parameters and status of pollution in waters of bay of Meulaboh was conducted on Mei-July 2014 in Meulaboh Bay. Sampling Location was divided over 10 observation stations consisting of river, mouth river, bay waters, middle of bay to outer of bay. The purpose in this research was to analyze water quality parameters of physics-chemistry and to identified pollution lavel status in waters of bay of Meulaboh. The result in this research showed that the values of waters quality parameters on each observation station consecutive, including current velocity range 0,02-0,25 m/sec, themperature range 21-290C, salinity range 0–35 ppm, brightness range 39,55-161 cm, turbidity range 0,20-30,8 NTU acidity range 7,11-8,20, dissolved oxygen range 39,55-161 cm, nitrate range 0,014-0,646 mg/L, ortophosphate range 0,001-0,693 mg/L. As for pollution level status Meulaboh bay included into the medium category (medium polluted/ class C). Water quality parameters, such themperature, salinity, acadity, dissolved oxygen and ortophosphate had accordance with the quality standard. While water quality parameters such, nitrate, transparancy and turbidity were not accordance with the quality standard for organisms merine according to Decree of the Minister of Environment Number 51 on marine water quality standard for marine life. 2004.
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