Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers
<p>Advances in analytical chemistry have facilitated the characterization of dissolved organic matter (DOM), which has improved understanding of DOM sources and transformations in surface waters. For urban waters, however, where DOM diversity is likely to be high, the interpretation of DOM sig...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2022-06-01
|
| Series: | Biogeosciences |
| Online Access: | https://bg.copernicus.org/articles/19/2841/2022/bg-19-2841-2022.pdf |
| _version_ | 1811258249949741056 |
|---|---|
| author | C. Romero González-Quijano S. Herrero Ortega P. Casper M. O. Gessner M. O. Gessner G. A. Singer G. A. Singer G. A. Singer |
| author_facet | C. Romero González-Quijano S. Herrero Ortega P. Casper M. O. Gessner M. O. Gessner G. A. Singer G. A. Singer G. A. Singer |
| author_sort | C. Romero González-Quijano |
| collection | DOAJ |
| description | <p>Advances in analytical chemistry have facilitated the characterization of
dissolved organic matter (DOM), which has improved understanding of DOM
sources and transformations in surface waters. For urban waters, however,
where DOM diversity is likely to be high, the interpretation of DOM
signatures is hampered by a lack of information on the influence of land
cover and anthropogenic factors such as nutrient enrichment and release of
organic contaminants. Here we explored the spatio-temporal variation in DOM
composition in contrasting urban water bodies, based on spectrophotometry
and fluorometry, size-exclusion chromatography, and ultrahigh-resolution mass
spectrometry, to identify linkages between DOM signatures and potential
drivers. The highly diverse DOM we observed distinguished lakes and ponds,
which are characterized by a high proportion of autochthonous DOM, from
rivers and streams where allochthonous DOM is more prevalent. Seasonal
variation in DOM composition was apparent in all types of water bodies,
apparently due to interactions between phenology and urban influences, such
as nutrient supply, the percentage of green space surrounding the water
bodies and point source pollution. Optical DOM properties also revealed the
influence of effluents from wastewater treatment plants, suggesting that
simple optical measurements can be useful in water quality assessment and
monitoring, providing information about processes both within water bodies and in their
catchments.</p> |
| first_indexed | 2024-04-12T18:10:23Z |
| format | Article |
| id | doaj.art-be7c1f1ff71047f39c970c4847fd92bb |
| institution | Directory Open Access Journal |
| issn | 1726-4170 1726-4189 |
| language | English |
| last_indexed | 2024-04-12T18:10:23Z |
| publishDate | 2022-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Biogeosciences |
| spelling | doaj.art-be7c1f1ff71047f39c970c4847fd92bb2022-12-22T03:21:50ZengCopernicus PublicationsBiogeosciences1726-41701726-41892022-06-01192841285310.5194/bg-19-2841-2022Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and driversC. Romero González-Quijano0S. Herrero Ortega1P. Casper2M. O. Gessner3M. O. Gessner4G. A. Singer5G. A. Singer6G. A. Singer7Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, GermanyDepartment of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Stechlin, GermanyDepartment of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Stechlin, GermanyDepartment of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Stechlin, GermanyDepartment of Ecology, Berlin Institute of Technology (TU Berlin), Berlin, GermanyDepartment of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, GermanyResearch Area of Earth, Hanse-Wissenschaftskolleg, Delmenhorst, GermanyDepartment of Ecology, University of Innsbruck, Innsbruck, Austria<p>Advances in analytical chemistry have facilitated the characterization of dissolved organic matter (DOM), which has improved understanding of DOM sources and transformations in surface waters. For urban waters, however, where DOM diversity is likely to be high, the interpretation of DOM signatures is hampered by a lack of information on the influence of land cover and anthropogenic factors such as nutrient enrichment and release of organic contaminants. Here we explored the spatio-temporal variation in DOM composition in contrasting urban water bodies, based on spectrophotometry and fluorometry, size-exclusion chromatography, and ultrahigh-resolution mass spectrometry, to identify linkages between DOM signatures and potential drivers. The highly diverse DOM we observed distinguished lakes and ponds, which are characterized by a high proportion of autochthonous DOM, from rivers and streams where allochthonous DOM is more prevalent. Seasonal variation in DOM composition was apparent in all types of water bodies, apparently due to interactions between phenology and urban influences, such as nutrient supply, the percentage of green space surrounding the water bodies and point source pollution. Optical DOM properties also revealed the influence of effluents from wastewater treatment plants, suggesting that simple optical measurements can be useful in water quality assessment and monitoring, providing information about processes both within water bodies and in their catchments.</p>https://bg.copernicus.org/articles/19/2841/2022/bg-19-2841-2022.pdf |
| spellingShingle | C. Romero González-Quijano S. Herrero Ortega P. Casper M. O. Gessner M. O. Gessner G. A. Singer G. A. Singer G. A. Singer Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers Biogeosciences |
| title | Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers |
| title_full | Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers |
| title_fullStr | Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers |
| title_full_unstemmed | Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers |
| title_short | Dissolved organic matter signatures in urban surface waters: spatio-temporal patterns and drivers |
| title_sort | dissolved organic matter signatures in urban surface waters spatio temporal patterns and drivers |
| url | https://bg.copernicus.org/articles/19/2841/2022/bg-19-2841-2022.pdf |
| work_keys_str_mv | AT cromerogonzalezquijano dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT sherreroortega dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT pcasper dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT mogessner dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT mogessner dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT gasinger dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT gasinger dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers AT gasinger dissolvedorganicmattersignaturesinurbansurfacewatersspatiotemporalpatternsanddrivers |