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Stormwater run-off from an industrial log yard: characterization, contaminant correlation and first-flush phenomenon.
Linnaeus University, Faculty of Science and Engineering, School of Natural Sciences.
Linnaeus University, Faculty of Science and Engineering, School of Natural Sciences.ORCID iD: 0000-0002-7920-8001
Linnaeus University, Faculty of Science and Engineering, School of Natural Sciences.ORCID iD: 0000-0002-1903-760X
2012 (English)In: Environmental technology, ISSN 0959-3330, Vol. 33, no 13-15, 1615-1628 p.Article in journal (Refereed) Published
Abstract [en]

The stormwater run-off generated in an industrial log yard during eight run-off events was studied with the main focus on the transport of toxic metals. Associations between water quality constituents and potential surrogates were evaluated by correlation analysis. The first-flush phenomenon was verified by normalized M(V) curves. The results have shown that, whereas some metals such as Zn, Ba, Cd, As and Fe were always detected in these waters, others (Cr, Pb, Cu, Ni, V, Co) were not. Large variations in the water constituents' concentrations were observed, with Fe, Pb and V being the most variable ones. Concentrations of Zn and Cu in the run-off waters exceeded the values established by the Swedish environmental authorities in 100% and 97% of samples, respectively. The correlation analyses indicated TSS as a potential surrogate of Pb, V, Co, Ni, As, Ba, Cr and COD (0.949 > R > 0.808), making it reasonable to state that a treatment system with focus on TSS removal would also reduce toxic metals from these waters. The first-flush phenomenon was evident for most of the constituents. Significant differences (p < 0.05) in the first-flush magnitude of different run-off events were observed confirming that hydro-meteorological variables such as dry period, precipitation duration and average intensity play important roles. Metal loads originating from the log yard were mainly composed ofZn, Cu and Ba. Knowledge of the physicochemical characteristics, discharge dynamics and the storm variables involved in the process is a crucial step for the proposal and implementation of a stormwater management programme.

Place, publisher, year, edition, pages
2012. Vol. 33, no 13-15, 1615-1628 p.
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-22809PubMedID: 22988622OAI: oai:DiVA.org:lnu-22809DiVA: diva2:576288
Available from: 2012-12-12 Created: 2012-12-12 Last updated: 2016-11-17Bibliographically approved

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CiteExportLink to record
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