SOURCES AND SEASONAL VARIATION OF PAHS AND PCBS IN SURFACE SEDIMENTS AND WATER OF CHABAHAR BAY

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MEHDINIA ALI; RAHMANPOUR SHIRIN; SHEIJOONI FUMANI NEDA; AGAH HOMEYRA; SALEH ABOLFAZL

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Seminar: SEMINAR OF CHEMISTRY AND ENVIRONMENT
Year:2013 | Issue:6

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Title

SOURCES AND SEASONAL VARIATION OF PAHS AND PCBS IN SURFACE SEDIMENTS AND WATER OF CHABAHAR BAY

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Abstract

THE CONCENTRATIONS OF 16 POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) AND POLYCHLORINATED BIPHENYLS (PCBS) IN WATER AND SEDIMENT SAMPLES COLLECTED FROM 10 LOCATIONS IN CHABAHAR BAY AND GULF OF OMAN WERE ANALYZED. CONCENTRATIONS OF TOTAL 16 PAHS ( SPAHS) IN WATER SAMPLES RANGED FROM 1.3 TO 2.8 MG L-1 IN PRE-MONSOON SEASON AND BELOW METHOD DETECTION LIMITS (<MDLS) TO 59.5 MG L-1 IN PAST-MONSOON SEASON. THE ΣPAH CONCENTRATIONS IN SEDIMENTS RANGED FROM 16.0 TO 62.2 NG G-1 DRY WEIGHT FOR PRE-MONSOON SEASON AND 3.5 TO 98.2 NG G-1 DRY WEIGHT FOR PAST-MONSOON SEASON. THE SEASONAL VARIATION OF TOTAL PAHS IN SEAWATER AND SEDIMENTS MEASURED WITH HIGH PERFORMANCE LIQUID CHROMATOGRAPHY AND FLUORESCENCE DETECTION INDICATED HIGHER AVERAGE CONCENTRATIONS IN PAST-MONSOON COMPARED TO PRE-MONSOON SEASON. DECREASING CONCENTRATIONS IN SUMMER (PRE-MONSOON) COULD BE A RESULT OF ACCELERATED DEGRADATION DUE TO THE HIGHER WATER TEMPERATURE THAT ALSO AFFECTS THE RATE BY WHICH PAHS ARE DEGRADED BY MICROORGANISMS OR DUE TO HIGHER PHOTOOXIDATION.RATIOS OF SPECIFIC PAH COMPOUNDS INCLUDING PHENANTHRENE/ANTHRACENE (PHE/ANT), FLUORANTHENE/PYRENE (FL/PYR), CHRYSENE/BENZO [A] ANTHRACENE (CHR/BAA), LOW-MOLECULARWEIGHT PAH/HIGH-MOLECULAR-WEIGHT PAH (LPAH/HPAH) WERE CALCULATED TO EVALUATE THE POSSIBLE SOURCES OF PAH CONTAMINATION. THESE RATIOS REFLECT PYROLYTIC INPUTS OF PAHS IN THE STUDIED AREA.

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APA: Copy

MEHDINIA, ALI, RAHMANPOUR, SHIRIN, SHEIJOONI FUMANI, NEDA, AGAH, HOMEYRA, & SALEH, ABOLFAZL. (2013). SOURCES AND SEASONAL VARIATION OF PAHS AND PCBS IN SURFACE SEDIMENTS AND WATER OF CHABAHAR BAY. SEMINAR OF CHEMISTRY AND ENVIRONMENT. SID. https://sid.ir/paper/909614/en

Vancouver: Copy

MEHDINIA ALI, RAHMANPOUR SHIRIN, SHEIJOONI FUMANI NEDA, AGAH HOMEYRA, SALEH ABOLFAZL. SOURCES AND SEASONAL VARIATION OF PAHS AND PCBS IN SURFACE SEDIMENTS AND WATER OF CHABAHAR BAY. 2013. Available from: https://sid.ir/paper/909614/en

IEEE: Copy

ALI MEHDINIA, SHIRIN RAHMANPOUR, NEDA SHEIJOONI FUMANI, HOMEYRA AGAH, and ABOLFAZL SALEH, “SOURCES AND SEASONAL VARIATION OF PAHS AND PCBS IN SURFACE SEDIMENTS AND WATER OF CHABAHAR BAY,” presented at the SEMINAR OF CHEMISTRY AND ENVIRONMENT. 2013, [Online]. Available: https://sid.ir/paper/909614/en

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