Off flavours in large waterbodies: physics, chemistry and biology in synchrony
| Autor: | B. Brownlee, T. Howell, J. Ridal, C. Marvin, Yerubandi R. Rao, Murray N. Charlton, Susan B. Watson, S. Millard |
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| Rok vydání: | 2007 |
| Předmět: |
Canada
Environmental Engineering Water source Fresh Water Water industry Biology Biochemistry Excipients Rivers Water Supply Water Movements Ecosystem Temporal scales Water Science and Technology Physics business.industry Chemistry Ecology Water Pollution Water Plankton United States Benthic zone Approaches of management business Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Water Science and Technology. 55:1-8 |
| ISSN: | 1996-9732 0273-1223 |
| DOI: | 10.2166/wst.2007.155 |
| Popis: | The Laurentian Great Lakes of North America are a drinking water source for millions of Canadian and US consumers. These waterbodies have undergone extensive change over the past century as a result of widespread degradation and remediation. Many of the Lakes are prone to taste and odour (T&O), and although these outbreaks have been poorly monitored, evidence suggests that they are increasing in frequency. Tracing and controlling T&O in such large systems presents a challenging task, due to their physical size and complexity. This paper presents an overview of recent investigative and management approaches to T&O in Lake Ontario and its outflow, the St. Lawrence River. We have identified three distinct patterns of T&O in these source-waters, caused by geosmin and 2-methylisoborneol and differing in their planktonic and benthic sources, and temporal and spatial dynamics. Each pattern has required a different approach by scientists and management, in partnership with the water industry. We have shown these T&O outbreaks are caused and moderated by physical, chemical and biological mechanisms over a spectrum of spatial and temporal scales. Canadian municipalities affected by these outbreaks have been key to the investigation of the links between T&O and ecosystem processes with the aim to develop more proactive water treatment and long-term management. |
| Databáze: | OpenAIRE |
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