Heavy metals from heavy land use? Spatio-temporal patterns of urban runoff metal loads
| Autor: | Maija Taka, Nora Sillanpää, Tero Niemi, Lassi Warsta, Teemu Kokkonen, Heikki Setälä |
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| Přispěvatelé: | Suomen ympäristökeskus, The Finnish Environment Institute, Ecosystems and Environment Research Programme, Helsinki Institute of Urban and Regional Studies (Urbaria), Helsinki Institute of Sustainability Science (HELSUS), Heikki Setälä / Principal Investigator, Urban Ecosystems, Department of Built Environment, Water and Environmental Eng., Finnish Meteorological Institute, Simosol Oy, University of Helsinki, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
010504 meteorology & atmospheric sciences
ympäristö vesien tila Rain maankäyttö 010501 environmental sciences pienhiukkaset saasteet 01 natural sciences raskasmetallit ROAD 11. Sustainability vesistöalueet Waste Management and Disposal Finland valunta SDG 15 - Life on Land vesistöt Metal FRACTIONATION HIGHWAY RUNOFF SDG 11 - Sustainable Cities and Communities saastuminen Environmental Pollutants Seasons valuma-alueet Environmental Monitoring hydrologia Environmental Engineering MICROPOLLUTANTS Stormwater PARTICULATE POLLUTION Metals Heavy MANAGEMENT Environmental Chemistry QUALITY valumavesi 1172 Environmental sciences 0105 earth and related environmental sciences Urban water hulevesi Seasonality 15. Life on land SEASONAL-VARIATIONS SOIL 13. Climate action Pollutant export Water Pollutants Chemical |
| Zdroj: | Taka, M, Sillanpää, N, Nieminen, T, Warsta, L, Kokkonen, T & Setälä, H 2022, ' Heavy metals from heavy land use? Spatio-temporal patterns of urban runoff metal loads ', Science of the Total Environment, vol. 817, 152855 . https://doi.org/j.scitotenv.2021.152855 |
| Popis: | Funding Information: We want to thank Dr. Marjo Valtanen, Dr. Olli Ruth and all the other partners in the URCA research consortium for contributing with the data collection and analysis. This work was funded by the Academy of Finland (Project URCA within the AKVA program, project numbers 263308 , 263320 , and 263335 ), European Union Life + program (2009–2011), and Maa- ja Vesitekniikan Tuki Ry . We acknowledge the Environmental Laboratory at the Department of Geosciences and Geography, University of Helsinki for assistance in study design and sample analysis. Additionally, we thank Ms. Amy Fallon for the language check. Publisher Copyright: © 2022 The Authors Urban hydrology is characterized by increased runoff and various pollutant sources. We studied the spatio-temporal patterns of stormwater metal (Al, V, Cr, Mn, Fe, Cu, Zn, and Pb) concentrations and loads in five urbanized and one rural catchment in Southern Finland. The two-year continuous monitoring revealed a non-linear seasonal relationship between catchment urban intensity and metal export. For runoff, seasonal variation decreased with increasing imperviousness. The most urbanized catchments experienced greatest temporal variation in metal concentrations: the annual Cu and Zn loads in most of the studied urbanized catchments were up to 86 times higher compared to the rural site, whereas Fe loads in the urbanized catchments were only circa 29% of the rural load. Total metal levels were highest in the winter, whereas the winter peak of dissolved metal concentrations was less pronounced. The collection of catchment characteristics explained well the total metal concentrations, whereas for the dissolved concentrations the explanatory power was weaker. Our catchment-scale analysis revealed a mosaic of mainly diffuse pollutant sources and calls for catchment-scale management designs. As urban metal export occurred across seasons, solutions that operate also in cold conditions are needed. |
| Databáze: | OpenAIRE |
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