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- Title
Assessment for the complicated occurrence of nuisance odours from phytoplankton and environmental factors in a eutrophic lake.
- Authors
Sugiura, Norio; Utsumi, Motoo; Wei, Bin; Iwami, Norio; Okano, Kunihiro; Kawauchi, Yukio; Maekawa, Takaaki
- Abstract
Odours in waters used for various purposes, especially musty odours, is a worldwide problem. To establish an early warning system, the nuisance odour in an aquatic environment, the causative microorganisms and compounds, and the mechanism of odour in Lake Kasumigaura, the second biggest lake in Japan, were examined usingin situstudies. In this study, the mechanism for the occurrence of musty odours was determined, and the level of musty odour was discriminated, based on 32 months of phytoplankton data from three sampling stations. The results indicate that the cell numbers ofPhormidium tenue,SynedraandAnkistrodesmuswere significantly related to the occurrence of 2-methlisoborneol (MIB) and geosmin. Furthermore, the odour occurrence for both MIB and geosmin was effectively predicted and validated using environmental factors as explanatory variables, using multiple linear regression and artificial neural network technology.
- Subjects
JAPAN; PHYTOPLANKTON; MICROORGANISMS; ODORS; ARTIFICIAL neural networks; REGRESSION analysis
- Publication
Lakes & Reservoirs: Research & Management, 2004, Vol 9, Issue 3/4, p195
- ISSN
1320-5331
- Publication type
Article
- DOI
10.1111/j.1440-1770.2004.00246.x