PAH CHARACTERISTICS IN SEDIMENT AROUND MAKASSAR COAST USING GC-FID

Muhammad Syahrir(1*), Nurul Hidayat Aprilita(2), Nuryono Nuryono(3), Netti Herawati(4),

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(*) Corresponding Author

Abstract


Waste parameter characteristics in 17 sediment sampling stations around Makassar Coast are salinity, turbidity, pH, and temperature and it can be concluded that the highest turbidity is at station 14, it is 50.3 NTU while the lowest content is at station 3, it is 0.67 NTU. Measurement of the highest pH concentrations is at station 10 location, it is 8.21, while the lowest is at station 9 location, it is 7.62. Temperature measurement does not show its maximum results according to signals of Ministerial Environmental Preservation Decree number 112 of the year 2003. The highest salinity at is station 6, it is 37 per mile, and the lowest salinity is at station 14, located on a river in power plant surrounding area, with its normal requirement is 33-34 per mile. Collected sediment samples are taken to the laboratory in order to be analyzed their PAH with sample preparation using dichloromethane solvent and organic extracts obtained are fractionated using Silica-gel chromatography column – Alumina and GC-FID instrument. Evaluation of GC-FID separation is done by determining its capacity, selectivity, recovery, and repeatability factors. The research result shows its capacity, selectivity, and repeatability factors are sufficient enough. In validation methods, linearity parameters, linear range, limit of detection (LOD) and limit of quantification (LOQ) for each PAH provide a linear regression coefficient (r) close to 1 and limit quantifying (LOQ) is three times greater than limit of detection (LOD). Total PAH concentration in its sediments of all stations majority obtained in Station  1, Station  5, Station  6, station  9, station  10 and station  15 respectively (740.78; 1121.4; 1140.07; 960.62; 852, 22 and 633.25) ppm. Station 5 and station 6 are shopping complex and dense traffic. Then station 9 is close to large population activity and Tallo River estuary as well as Makassar industrial area and landfill waste in Antang. If it is compared with Ministerial Environmental Preservation Regulation, the three stations PAH levels are found in its sediments already exceed the threshold where its minimum requirement is 0,003 ppm for Biota and greater than 200 ppm for sediment.

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