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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/4871

    Title: Seasonal Change and Correlation with Environmental Parameters for 2-MIB in Feng-Shen Reservoir, Taiwan
    Authors: Shu-Chu Tung(童淑珠)
    Tsair-Fuh Lin
    Feng-Cheng Yang
    Chia-Lin Liu
    Keywords: correlation
    2-methyl-isoborneol (2-MIB)
    Date: 2008
    Issue Date: 2009-09-11 15:10:06 (UTC+8)
    Abstract: Two common drinking water earthy/musty odorants, 2-methyl-isoborneol (2-MIB)
    and trans-1,10-dimethyl-trans-9-decalol (geosmin), were monitored and analyzed for
    their correlation with environmental conditions in Feng-Shen Reservoir (FSR),
    Taiwan. Long-term monitoring results, from December 2000 to July 2003, indicated
    that 2-MIB was present in the reservoir at concentrations between 10 and 200 ng-L-1,
    and those of geosmin were always smaller than 10 ng-L-1. The 2-MIB concentrations followed a trend of higher concentrations during the warm seasons. After being analyzed with 10 water quality and 3 meteorological parameters, 2-MIB
    concentration was found to correlate with corresponding air and water temperatures.
    An analysis of air temperature history versus 2-MIB concentration in FSR suggested
    that 2-MIB concentration was best correlated with the mean of average daily
    temperature from 1 to 9 days before sampling, with R2 = 0.90. This correlation was further employed to predict the 2-MIB concentration observed during another
    sampling period in FSR. A similar degree of fit was observed between predictions
    and experimental data, suggesting the potential applicability of the approach. In
    addition to the effect of temperature, heavy rainfalls that occurred before the sampling
    time may also reduce the 2-MIB concentration in the reservoir. A short-term continuous monitoring of the odorants for 32 hours showed that both geosmin and 2-MIB concentrations in the reservoir remained almost constant, with only about a
    10% difference during the sampling period. This may suggest that the odorants were
    uniformly distributed in the water near the sampling location in the reservoir.
    Appears in Collections:[環境工程系所] 期刊論文

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