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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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| URI: | http://purl.tuc.gr/dl/dias/DADBC0FE-DD84-4366-A6DA-50B4F2EA436E | ||
| Year | 1992 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
| License |
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| Bibliographic Citation | I. K. Tsanis, A. H. El-Shaarawi " Trend evaluation of water quality parameters in the Niagara and St. Lawrence Rivers," J of Envi. Moni. and Assessment,vol. 23, no. 1-3 pp. 205-218, 1992.doi:10.1007/BF00406962 https://doi.org/10.1007/BF00406962 | ||
| Appears in Collections |
Physical and chemical (nutrients and major ions) indicators of water quality monitored by Environment Canada between 1977 and 1987 in the Niagara River at Niagara-on-the-Lake and in the St. Lawrence River at Wolfe Island are analyzed for seasonal and annual variations. Parametric methods such as moving averages and linear regression and nonparametric methods (Spearman's rank coefficient) are used to test for the existence of trends in these data. The results indicate that specific conductivity, sodium and chloride have decreased significantly over the period of study. During the same period there is no significant trend for either discharge and nutrients.
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