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Freya Alldred's Outputs (3)

Nitrogen isotope variability of macroalgae from a small fishing village, Staithes Harbour, Yorkshire, UK. (2024)
Journal Article
Alldred, F. C., Gröcke, D. R., & Jackson, S. E. (2024). Nitrogen isotope variability of macroalgae from a small fishing village, Staithes Harbour, Yorkshire, UK. Marine Pollution Bulletin, 207, Article 116828. https://doi.org/10.1016/j.marpolbul.2024.116828

Macroalgal nitrogen isotope analysis (δ N) is a reliable method for the identification of nitrogen pollutant sources. Understanding δ N geospatial variation within small bays and/or harbour environments can help identify point sources of nitrogen pol... Read More about Nitrogen isotope variability of macroalgae from a small fishing village, Staithes Harbour, Yorkshire, UK..

Nitrogen isotopes in herbaria document historical nitrogen sewage pollution in the Mersey Estuary, England (2024)
Journal Article
Alldred, F. C., Gröcke, D. R., Jackson, S. E., & Reid, G. (2024). Nitrogen isotopes in herbaria document historical nitrogen sewage pollution in the Mersey Estuary, England. Environmental Science: Advances, 3(5), 676-685. https://doi.org/10.1039/D4VA00015C

A macroalgae (seaweed) herbarium nitrogen isotope (δ15N) record is produced for the River Mersey and Liverpool South Docks (England) between 1821 and 2018. A modern macroalgae δ15N record was also produced from September 2022. The herbaria δ15N recor... Read More about Nitrogen isotopes in herbaria document historical nitrogen sewage pollution in the Mersey Estuary, England.

Diffuse and concentrated nitrogen sewage pollution in island environments with differing treatment systems (2023)
Journal Article
Alldred, F., Gröcke, D., Leung, C., Wright, L., & Banfield, N. (2023). Diffuse and concentrated nitrogen sewage pollution in island environments with differing treatment systems. Scientific Reports, 13, Article 4838. https://doi.org/10.1038/s41598-023-32105-6

Macroalgae is an under-utilised tool as a bioindicator of anthropogenic nitrogen loading to the coastal environment in the UK. This study compared two island systems—Jersey (Channel Islands) and St Mary’s (Isles of Scilly) to assess how differing sew... Read More about Diffuse and concentrated nitrogen sewage pollution in island environments with differing treatment systems.