Presentation Title

A Correlation Study Between Particulate Matter and PAH Concentrations: The Bio-Monitoring of Pine Tree Leaves

Faculty Mentor

Dr. Sylvine Deprèle

Start Date

17-11-2018 12:30 PM

End Date

17-11-2018 2:30 PM

Location

CREVELING 74

Session

POSTER 2

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

PAHs are polycyclic aromatic hydrocarbons composed of two or more fused rings. These compounds result from an incomplete combustion in which a hydrocarbon reacts with an unknown amount of oxygen to produce carbon dioxide, water, and unwanted by-products: carbon monoxide and PAHs. Exposure to PAHs are prevalent in forest fires, tar, car exhaust, and smoke. They are detrimental to our health because they are carcinogenic, teratogenic, and mutagenic. PAHs are inherent in particulate matter; particulate matter is a mixture of solid particles and liquid droplets in the air. Due to their deleterious properties, it is important to qualify PMs as well. We propose the bio-monitoring of PAHs through pine tree leaves from the Italian Blue Cyprus tree in two designated areas: near the I-405 Freeway and on the Mount Saint Mary’s University campus. PAHs were extracted via a continuous Soxhlet extraction and analyzed by the Gas Chromatography Mass Spectrometer (GCMS). A Selected Ion Monitoring (SIM) table was used to search for the 16 most common PAHs present in the sample. The Environmental Protection Agency (EPA) standard was used for reference. Through a series of calculations, the concentration of PAHs and PM values reported by the EPA were graphed to illustrate a comparison. Since PAHs fall within particulate matter, a direct correlation between the concentration of PAHs and PM values reported was expected. Samples collected from the freeway and campus area showed direct correlations with few discrepancies that can be linked to weather patterns. To confirm methodology accuracy, triplicates of our data where graphed. Analysis of the data confirmed that our campus location, on top of a hill, displays higher levels of PAHs than the I-405 freeway. For future directions, we will analyze previous data acquired to finalize the quantification and qualification of PAH and PM concentrations found within these areas.

Summary of research results to be presented

Samples collected from the freeway and campus area showed direct correlations with few discrepancies that can be linked to weather patterns. To confirm methodology accuracy, triplicates of our data where graphed. Analysis of the data confirmed that our campus location, on top of a hill, displays higher levels of PAHs than the I-405 freeway.

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Nov 17th, 12:30 PM Nov 17th, 2:30 PM

A Correlation Study Between Particulate Matter and PAH Concentrations: The Bio-Monitoring of Pine Tree Leaves

CREVELING 74

PAHs are polycyclic aromatic hydrocarbons composed of two or more fused rings. These compounds result from an incomplete combustion in which a hydrocarbon reacts with an unknown amount of oxygen to produce carbon dioxide, water, and unwanted by-products: carbon monoxide and PAHs. Exposure to PAHs are prevalent in forest fires, tar, car exhaust, and smoke. They are detrimental to our health because they are carcinogenic, teratogenic, and mutagenic. PAHs are inherent in particulate matter; particulate matter is a mixture of solid particles and liquid droplets in the air. Due to their deleterious properties, it is important to qualify PMs as well. We propose the bio-monitoring of PAHs through pine tree leaves from the Italian Blue Cyprus tree in two designated areas: near the I-405 Freeway and on the Mount Saint Mary’s University campus. PAHs were extracted via a continuous Soxhlet extraction and analyzed by the Gas Chromatography Mass Spectrometer (GCMS). A Selected Ion Monitoring (SIM) table was used to search for the 16 most common PAHs present in the sample. The Environmental Protection Agency (EPA) standard was used for reference. Through a series of calculations, the concentration of PAHs and PM values reported by the EPA were graphed to illustrate a comparison. Since PAHs fall within particulate matter, a direct correlation between the concentration of PAHs and PM values reported was expected. Samples collected from the freeway and campus area showed direct correlations with few discrepancies that can be linked to weather patterns. To confirm methodology accuracy, triplicates of our data where graphed. Analysis of the data confirmed that our campus location, on top of a hill, displays higher levels of PAHs than the I-405 freeway. For future directions, we will analyze previous data acquired to finalize the quantification and qualification of PAH and PM concentrations found within these areas.