Abstract
The distribution pattern and sources of sixteen PANs listed as priority pollutants were investigated in eight composite water samples using Gas Chromatography (GC) with a Hawlett-Packard model 6890 with 30m x 0.28 capillary column. Analytical observation of the percentage distribution of PNAs concentration in the study area show thatSSY(20.12%)>SSX(16.75%)>SSZ(16.01%)>SST(14.43%)>SSW(13.24%)>SSU(12.06%)>SSV(6.84%)>SSA(0.55%). The observed distribution of genotoxic (Gen.) and carcinogenic (Car.) PNAs and other PNAs in the study area show that the Gen. and Car PNAs recorded 29.58% over other PNAs with 70.42%. The percentagedistribution of low PNAs/high PNAs and ratio analysis show that this sources are petrogenic and pyrogenic but dominated with petrogenic PNAs
Highlights
The observed distribution of genotoxic (Gen.) and carcinogenic (Car.) Polynuclear aromatic hydrocarbons (PNAs) and other PNAs in the study area show that the Gen. and Car PNAs recorded 29.58% over other PNAs with 70.42%
The cumulative results indicated that the total concentration of PNAs in the various sample station is in the order of SSY > SSX > SSZ > SST > SSW > SSU > SSV > SSA
The results further reveal that SSXYZ has 52.88% of the total concentration in the study area while SSUVW has 32.14% with SST and SSA having 14.43% and
Summary
The percentage distribution of low PNAs/high PNAs and ratio analysis show that this sources are petrogenic and pyrogenic but dominated with petrogenic PNAs @ JASEM PNAs exhibit toxic characteristic at low concentrations and several have been listed as priority pollutants to be monitored in industrial effluents, natural waters, (Watts, 1997).
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