Impact of the 1993 flood on the distribution of organic contaminants in bed sediments of the Upper Mississippi River
Article Abstract:
The effect of the 1993 flood on the distribution of organic contaminants in bed sediments of the 1500 km Upper Mississippi River was investigated. All the sediment samples yielded most of the target compounds with concentrations averaging <1 mg/kg. The highest concentrations of the organic compounds were detected in the upper reach of the river. Sediments with different organic compounds washed in from urban and agricultural parts of the watershed may have buried or diluted the bed sediments stored in the pools.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Using limited concentration data for the determination of rate constants with the genetic algorithm
Article Abstract:
A Genetic Algorithm-based computational strategy for iteratively determining rate constants for a postulated reaction mechanism is presented. The algorithm uses limited concentration vs time data to generate rate constants that, in turn, can be used to compute complete reaction profiles in time functions. The algorithm is found to be robust in generating solutions near enough to the global minimum without getting trapped in the local minima.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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- Abstracts: Method comparison and evaluation for the analysis of weak acid-dissociable cyanide. Herbicide-resistant soybean plant sprouts opposition to transgenic seeds
- Abstracts: Physicochemical properties and biodegradability of crude oil. part 2 Identification of estrogenic chemicals in STW effluent. 2. in vivo responses in trout and roach