First Advisor

Dean Atkinson

Date of Award

Spring 6-2024

Document Type

Thesis

Degree Name

Bachelor of Science (B.S.) in Biochemistry and University Honors

Department

Chemistry

Language

English

Subjects

moss biomonitoring, lead, heavy metal emissions, Orthotrichum lyellii

DOI

10.15760/honors.1582

Abstract

The objective of this experiment was to use biomonitoring as a method to determine lead concentration levels around Hillsboro Airport in Hillsboro, Oregon. Twenty-two samples were collected within a 2 km radius around Hillsboro Airport using a randomized sampling strategy. The concentrations of lead within the samples were determined using ICP-MS. The average lead concentration was (2.8 ± 5.0) mg/kg with a peak value of 21.6 mg/kg 0.57 km from Hillsboro Airport. As the average lead concentration was substantially skewed, Hillsboro Airport is likely to be the source of the lead increase.

Persistent Identifier

https://archives.pdx.edu/ds/psu/42188

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