Lead Analysis of Plants at a Former Shooting Range at the EWU Prairie Restoration Site

Faculty Mentor

Carmen Nezat

Presentation Type

Poster

Start Date

May 2025

End Date

May 2025

Location

PUB NCR

Primary Discipline of Presentation

Geosciences

Abstract

An area of interest for studying soil contaminants resides along a section of land within the Eastern Washington University Prairie Restoration Site which has trace metals such as lead (Pb) from a being a former trapshooting range. The purpose of this experiment is to determine how concentrations of lead (Pb) are distributed in plants across the Prairie Restoration Site. The plants selected along the transect of interest include mustard tumbleweed, an unidentified wheat and another unidentified plant species. The plant samples were collected in December, 2024, leached in a 1 M nitric acid solution and analyzed for elemental concentrations including lead (Pb). Based on literature from sources such as the EPA, lead (Pb) concentrations above 0.1 mg Pb/g in organic matter are considered high and may negatively impact plant health. This is relevant because it may provide insight into how native species might fare against higher lead (Pb) concentrations in the soil. Our findings in this experiment could help guide along in selection of native plants that will tolerate undesirable environmental conditions and support the current flora that are representative of biodiversity in the region.

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May 7th, 11:30 AM May 7th, 1:30 PM

Lead Analysis of Plants at a Former Shooting Range at the EWU Prairie Restoration Site

PUB NCR

An area of interest for studying soil contaminants resides along a section of land within the Eastern Washington University Prairie Restoration Site which has trace metals such as lead (Pb) from a being a former trapshooting range. The purpose of this experiment is to determine how concentrations of lead (Pb) are distributed in plants across the Prairie Restoration Site. The plants selected along the transect of interest include mustard tumbleweed, an unidentified wheat and another unidentified plant species. The plant samples were collected in December, 2024, leached in a 1 M nitric acid solution and analyzed for elemental concentrations including lead (Pb). Based on literature from sources such as the EPA, lead (Pb) concentrations above 0.1 mg Pb/g in organic matter are considered high and may negatively impact plant health. This is relevant because it may provide insight into how native species might fare against higher lead (Pb) concentrations in the soil. Our findings in this experiment could help guide along in selection of native plants that will tolerate undesirable environmental conditions and support the current flora that are representative of biodiversity in the region.