Funaria hygrometrica moss as Bio-indicator of Atmospheric Pollution of Polycyclic Aromatic Hydrocarbons (PAHs) in Makurdi-Nigeria: Occurrence and Sources

Peter Agorye Adie, Akosu Andrew Kor, Ahola David Oklo, Chris Oche Ikese and Peter Agorye Adie
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Peter Agorye Adie: Department of Chemistry, Benue State University, PMB 102119, Makurdi, Nigeria
Akosu Andrew Kor: Department of Chemistry, Benue State University, PMB 102119, Makurdi, Nigeria
Ahola David Oklo: Department of Chemistry, Benue State University, PMB 102119, Makurdi, Nigeria
Chris Oche Ikese: Department of Chemistry, Benue State University, PMB 102119, Makurdi, Nigeria
Peter Agorye Adie: Department of Chemistry, Benue State University, PMB 102119, Makurdi, Nigeria

International Journal of Research and Scientific Innovation, 2021, vol. 8, issue 4, 29-35

Abstract: The sixteen (16) polycyclic aromatic hydrocarbons (PAHs), compounds listed by the US EPA for priority attention were quantitated in moss samples in the study area to ascertain atmospheric pollution levels of these compounds. PAHs compounds in the digested samples were identified and quantitated by the gas chromatographic-mass spectrometric (GC-MS) technique using column injector in splitless mode. In many of the samples the machine returned Nd, revealing low levels of PAHs contamination in the area. Concentrations of PAHs in the samples ranged from, not detected (Nd) to 7.89 ng/g. Naphthalene, a two-ring PAH showed the most dominance, occurring in 12 of the 15 samples, while benzo[a,h]anthracene, indeno[1,2,3-cd]pyrene and benzo[ghi]perylene were not detected in any of the samples. Ankpa and Gaadi recorded 0.00 ng/g total PAHs concentration/site, while sample from Modern Market showed highest total PAHs concentration of 11.54 ng/g. Application of molecular ratios in source identification revealed that the PAHs fluxes in the samples derived from both pyrogenic and petrogenic origins.

Date: 2021
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