 Determining Sources of Nitrogen Pollution using Lichens in the Wind River Range Bailey Terry 1, David Williams 1, and Shannon E. Albeke 2 1 Department.

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Presentation transcript:

 Determining Sources of Nitrogen Pollution using Lichens in the Wind River Range Bailey Terry 1, David Williams 1, and Shannon E. Albeke 2 1 Department of Ecosystem Science and Management and 2 Wyoming Geographic Information Science Center (WyGISC) University of Wyoming

Western Wyoming  National Forests and Parks  Oil and Gas Industry Ozone spikes of 166 ppm Standard 75 ppm Parkcamper.com &

Atmospheric Nitrogen  80% N 2  NH x, NO x  Eutrophication

Sources of Nitrogen Pollution  Mitigates efforts  Industry  Agriculture  Sensors  Natural indicator?

Lichens  Algae and Fungus  Environmental Sponge  Occur almost everywhere

Objectives  Do lichens indicate amounts and sources of pollutions?  Will lichens show significant nitrogen deposition from Oil and Gas development?

Isotope Signatures  High δ 15 N from industry  More negative δ 15 N Agriculture Power10solutions.com

Study Area  Pinedale Anticline Pinedale

Samples Letharia vulpina Usnea lapponica ized_usnea-species-hair-lichens-moss-on-red-alder- 11-copy.jpg?w=604&h=524

Analysis  Isotope Analysis  %N  δ 15 N  C:N ratio  Locality  Relationship to Bulk Deposition UW Stable Isotope Facility

Green River Boulder Lake Freemont Lake Pinedale Key

Conclusion  Lichens show atmospheric N amounts  Slight trend for No x  Continued research, and isotope trend could be found

Acknowledgements  Dave Williams  Shannon Albeke  William’s Lab Group

References  Bragazza, L. et al Nitrogen concentration and d15N signature of ombrotrophic Sphagnum mosses at different N deposition levels in Europe. Global Change Biology 11; DOI /j x  McMurray, J et al Using Epiphytic Lichens to Monitor Nitrogen Deposition Near Natural Gas Drilling Operations in the Wind River Range, WY, USA. Water Air Soil Pollut 224:1487. DOI /s