Spatial and Temporal Variations in Aquatic Organic Matter Composition in UK Surface Waters DOI Creative Commons
Catherine Moody, Nicholle G. A. Bell, C. Logan Mackay

et al.

ACS ES&T Water, Journal Year: 2025, Volume and Issue: 5(5), P. 2233 - 2243

Published: April 29, 2025

Drinking water is becoming more difficult to treat, especially in the UK, due changing concentration and composition of aquatic dissolved organic matter (DOM). The spatial temporal variations DOM are not well understood. This study investigated how varies along a north/south gradient over four years, between headwaters reservoirs. There were trends metrics from north south; carbohydrate peptide-like compounds lower northern sites, while lipid-like further south, suggesting different sources catchments. collected Autumn 2021, after Summer low rainfall, was aromatic, less oxidized, diverse than 2018-2020. Decreased lipid content increased oxy-aromatic occurred Autumn, at end plant growing season, when rainfall rewets catchments mobilizes soil OM into surface waters. These seasonal changes coincide with concentrations raw drinking water, leading challenges for treatment, as climate change alters distribution UK.

Language: Английский

Spatial and Temporal Variations in Aquatic Organic Matter Composition in UK Surface Waters DOI Creative Commons
Catherine Moody, Nicholle G. A. Bell, C. Logan Mackay

et al.

ACS ES&T Water, Journal Year: 2025, Volume and Issue: 5(5), P. 2233 - 2243

Published: April 29, 2025

Drinking water is becoming more difficult to treat, especially in the UK, due changing concentration and composition of aquatic dissolved organic matter (DOM). The spatial temporal variations DOM are not well understood. This study investigated how varies along a north/south gradient over four years, between headwaters reservoirs. There were trends metrics from north south; carbohydrate peptide-like compounds lower northern sites, while lipid-like further south, suggesting different sources catchments. collected Autumn 2021, after Summer low rainfall, was aromatic, less oxidized, diverse than 2018-2020. Decreased lipid content increased oxy-aromatic occurred Autumn, at end plant growing season, when rainfall rewets catchments mobilizes soil OM into surface waters. These seasonal changes coincide with concentrations raw drinking water, leading challenges for treatment, as climate change alters distribution UK.

Language: Английский

Citations

0