Author
Cary T. Chiou
Other affiliations: University of Arkansas, Oregon State University, University of Kentucky ...read more
Bio: Cary T. Chiou is an academic researcher from National Cheng Kung University. The author has contributed to research in topics: Sorption & Organic matter. The author has an hindex of 45, co-authored 80 publications receiving 12245 citations. Previous affiliations of Cary T. Chiou include University of Arkansas & Oregon State University.
Papers published on a yearly basis
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TL;DR: Soil-water equilibrium data suggest that the transfer of nonionic chemicals from water to soil may be described in terms of a hypothesis of solute partitioning in the soil organic matter.
Abstract: Soil-water equilibrium data suggest that the transfer of nonionic chemicals from water to soil may be described in terms of a hypothesis of solute partitioning in the soil organic matter. This concept allows estimation of soil-water distribution coefficients either from solvent-water partition coefficients or aqueous solubilities.
1,028 citations
TL;DR: Water solubility enhancements by dissolved humic and fulvic acids from soil and aquatic origins and by synthetic organic polymers have been determined for selected organic pollutants and pesticides.
Abstract: Water solubility enhancements by dissolved humic and fulvic acids from soil and aquatic origins and by synthetic organic polymers have been determined for selected organic pollutants and pesticides (p,p'-DDT,2,4,5,2',5'-PCB, 2,4,4'-PCB, 1,2,3,-trichlorobenzene, and lindane). Significant solubility enhancements of relatively water-insoluble solutes by dissolved organic matter (DOM) of soil and aquatic origins may be described in terms of a partition-like interaction of the solutes with the microscopic organic environment of the high-molecular-weight DOM species; the apparent solute solubilities increase linearly with DOM concentration and show no competitive effect between solutes. The K/sub dom/ values of solutes with soil-derived humic acid are approximately 4 times greater than with soil fulvic acid and 5-7 times greater than with aquatic humic and fulvic acids. The effectiveness of DOM in enhancing solute solubility appears to be largely controlled by the DOM molecular size and polarity. The relative inability of high-molecular-weight poly(acrylic acids) to enhance solute solubility is attributed to their high polarities and extended chain structures that do not permit the formation of a sizable intramolecular nonpolar environment. 41 references, 6 figures, 3 tables.
971 citations
TL;DR: “Ambient Hydrocarbons and Ozone Concentrations Near a Refinery: Robinson, Illinois 1977”; Final Report to the U.S. Environmental Protection Agency, for Grant 805376, 1982.
Abstract: Sexton, K.; Westberg, H. “Ambient Hydrocarbons and Ozone Concentrations Near a Refinery: Robinson, Illinois 1977”; Final Report to the U.S. Environmental Protection Agency, for Grant 805376, 1982. Westberg, H.; Sexton, K.; Holdren, M. Aug 1978, General Motors Report for Contract EA-148705. Sexton, K.; Westberg, H. Atmos. Environ. 1983, 17, 467. Westberg, H.; Sexton, K.; Holdren, M. “Measurement of Ambient Hydrocarbons and Oxidant Transport, Volume I-Houston Study, 1978”; Final EPA Report for Grant R805343. Allwine, K. J.; Westberg, H. Wisconsin Public Service Commission Report for Contract 8110, 1976. Vukovic, F. M.; Boch, W. D., Jr.; Chrissman, B. W.; King, W. J. Atmos. Environ., 1977, 11, 967. Lyons, W. A. In “Lectures on Air Pollution and Environmental Impact Analysis”; American Meteorological Society: Boston, MA, 1975; pp 136-202. Lyons, W. A.; Cole, H. S. J . Appl. Meteor., 1976,15, 733. Weatberg, H.; Sexton, K.; Roberts, E. J . Air Pollut. Control Assoc., 1981, 31, 385. Sexton, K.; Westberg, H. J. Air Pollut. Control Assoc., 1980, 30, 911. Sexton, K.; Westberg, H. Proceedings of 73rd Annual Meeting of Air Pollution Control Association, paper 80-39.5, Montreal, Quebec, June 1980. Sexton, K.; Westberg, H. J. Air Pollut. Control Assoc., 1979, 29, 1149. Sexton, K.; Westberg, H. General Motors Report for Contract EA-148705, 1979. Sexton, K.; Westberg, H. Environ. Sci. Technol., 1980,14, 329. Davis, D. D.; Smith, G.; Klauber, G. Science (Washington, D E . ) 1974,186, 733. Miller, D. F.; Alkezweeny, A. J.; Hales, J. M.; Lee, R. N. Science (Washington, D.C) 1978,202, 1186. Westberg, H.; Sexton, K.; Flyckt, D. J. Air Pollut. Control Assoc., 1981, 31, 661. Sexton, K.; Westberg, H. submitted for publication in J . Air Pollut. Control Assoc.
967 citations
TL;DR: Chars originating from the burning or pyrolysis of vegetation may significantly sorb neutral organic contaminants (NOCs) and appear to have a higher surface affinity for a polar solute (nitrobenzene) than for a nonpolar Solute (benzenes), the difference being related to the surface acidity/basicity of the char samples.
Abstract: Chars originating from the burning or pyrolysis of vegetation may significantly sorb neutral organic contaminants (NOCs). To evaluate the relationship between the char composition and NOC sorption,...
958 citations
TL;DR: In this article, the partition behavior was determined for three polycyclic aromatic hydrocarbons (PAHs) from water to a range of soil and sediment samples, i.e., naphthalene, phenanthrene, and pyrene.
Abstract: The partition behavior was determined for three polycyclic aromatic hydrocarbons (PAHs), i.e., naphthalene, phenanthrene, and pyrene, from water to a range of soil and sediment samples. The measure...
566 citations
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TL;DR: This paper has attempted to summarize the latest information available in the literature on the use, sales, exposure pathways, environmental occurrence, fate and effects of veterinary antibiotics in animal agriculture.
2,856 citations
Book•
01 Jan 1985
TL;DR: The first part of the book as mentioned in this paper is a general overview of the amount and general nature of dissolved organic carbon in natural waters, and the second part is a summary of the data that has accumulated from many disciplines over the last decade.
Abstract: This book is written as a reference on organic substances in natural waters and as a supplementary text for graduate students in water chemistry. The chapters address five topics: amount, origin, nature, geochemistry, and characterization of organic carbon. Of these topics, the main themes are the amount and nature of dissolved organic carbon in natural waters (mainly fresh water, although seawater is briefly discussed). It is hoped that the reader is familiar with organic chemistry, but it is not necessary. The first part of the book is a general overview of the amount and general nature of dissolved organic carbon. Over the past 10 years there has been an exponential increase in knowledge on organic substances in water, which is the result of money directed toward the research of organic compounds, of new methods of analysis (such as gas chromatography and mass spectrometry), and most importantly, the result of more people working in this field. Because of this exponential increase in knowledge, there is a need to pull together and summarize the data that has accumulated from many disciplines over the last decade.
2,803 citations
TL;DR: In this article, the authors investigated the sorption of hydrophobic compounds (aromatic hydrocarbons and chlorinated polycyclic aromatic compounds) spanning a concentration range in water solubility from 500 parts per trillion (ppt) to 1800 parts per million (ppm) on local pond and river sediments.
2,593 citations
TL;DR: While the book is a standard fixture in most chemical and physical laboratories, including those in medical centers, it is not as frequently seen in the laboratories of physician's offices (those either in solo or group practice), and I believe that the Handbook can be useful in those laboratories.
Abstract: There is a special reason for reviewing this book at this time: it is the 50th edition of a compendium that is known and used frequently in most chemical and physical laboratories in many parts of the world. Surely, a publication that has been published for 56 years, withstanding the vagaries of science in this century, must have had something to offer. There is another reason: while the book is a standard fixture in most chemical and physical laboratories, including those in medical centers, it is not as frequently seen in the laboratories of physician's offices (those either in solo or group practice). I believe that the Handbook can be useful in those laboratories. One of the reasons, among others, is that the various basic items of information it offers may be helpful in new tests, either physical or chemical, which are continuously being published. The basic information may relate
2,493 citations
TL;DR: In this paper, the authors present general ideas derived from the various reports mentioning toxic effects of lipophilic compounds on the membrane lipid bilayer, affecting the structural and functional properties of these membranes.
2,124 citations