Evaluation by the Formation Potentials of Mutagenicity and THM on the Water Environment of the Yodo River System.

Nobukawa, Takako; Ichihara, Makiko; Sanukida, Satoshi

doi:10.2965/jswe.24.168

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…The MFP ranged from 1,500 to 9,500 net rev./L, showing that seasonal variation of the MFP is obvious. Nobukawa et al (2001) surveyed the MFP of Yodo River system consisting of three rivers and In the present study, the seasonal variations observed in the 2007 survey and 2010 survey were almost consistent. The MFP varied 6.0 times in the 2007 survey and 4.9 times in the 2010 survey.…”

Section: Mutagen Formation Potential In River Waterssupporting

confidence: 75%

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Mutagen Formation Potential (MFP) of Kotsuki River Water and Contribution of Pesticides to MFP

Abiru

Takanashi

Kishida

et al. 2011

J. of Wat. & Envir. Tech.

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The contribution of selected pesticides to the mutagen formation potential (MFP) of river waters was studied. The concentrations of the pesticides in river water samples were determined by means of a quadrupole GC-MS. Twelve out of 39 pesticides measured were detected in the water samples collected from Kotsuki River. Ames mutagenicity assays (preincubation method) using Salmonella typhimurium TA100 without metabolic activation by S9 mix (TA100-S9) were performed to measure the MFP. From all the samples collected, significant MFPs were detected. The maximum contribution of the pesticides to the MFP of the river water samples was 0.11%, indicating that the effect of the pesticides found in this study on the MFP of the river water samples is insignificant. The contribution of pesticide degradation products to the MFP of river waters should be investigated in order to see whether pesticide degradation products affect the MFP of river waters.

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Section: Mutagen Formation Potential In River Waterssupporting

confidence: 75%

“…A few researchers (Nobukawa et al, 2001;Komatsu et al, 2007a) surveyed the MFP of river waters to examine the seasonal variation or the influence of sewage discharges to the MFP. However, there are only a few studies on the contributions of pesticides to the MFP of river waters.…”

Section: Introductionmentioning

confidence: 99%