Prediction of Toxicity, Sensory Responses and Biological Responses with the Abraham Model

Prediction of Toxicity, Sensory Responses and Biological Responses with the Abraham Model

Date: February 10, 2012
Creator: Acree, William E. (William Eugene); Grubbs, Laura M. & Abraham, M. H. (Michael H.)
Description: This book chapter discusses the prediction of toxicity, sensory responses and biological responses with the Abraham model.
Contributing Partner: UNT College of Arts and Sciences
Toxicity Studies of Aquatic Actinomycetes

Toxicity Studies of Aquatic Actinomycetes

Date: August 1952
Creator: Fair, Helena Juengermann
Description: Since Actinomycetes have been isolated from finished public drinking water, it is believed that the organisms are unaffected by the chlorination and flocculation of water treatment plants and pass as spores through the filters into the general distribution system. For this reason it was deemed imperative to study the toxic effects of these organisms.
Contributing Partner: UNT Libraries
Solvent Effects and Bioconcentration Patterns of Antimicrobial Compounds in Wetland Plants

Solvent Effects and Bioconcentration Patterns of Antimicrobial Compounds in Wetland Plants

Date: May 2011
Creator: Adhikari, Sajag
Description: This study looked at effects of organic solvents dimethylsulfoxide, dimethylformamide and acetone at 0.01%, 0.05% and 0.1% concentration on germination and seedling development wetland plants. Even at 0.01% level, all solvents affected some aspect of seed germination or seedling growth. Acetone at 0.01% was least toxic. Root morphological characteristics were most sensitive compared to shoot morphological characteristics. This study also looked at bioconcentration patterns of antimicrobial compounds triclosan, triclocarban and methyl-triclosan in wetland plants exposed to Denton Municipal Waste Water Treatment Plant effluent. Bioconcentration patterns of antimicrobial compounds varied among species within groups as well as within organs of species. The highest triclocarban, triclosan and methyltriclosan concentration were in shoot of N. guadalupensis, root of N. lutea and in shoots of P. nodous respectively.
Contributing Partner: UNT Libraries
The Information Content of Premanufacture Notices

The Information Content of Premanufacture Notices

Date: April 1983
Creator: United States. Congress. Office of Technology Assessment.
Description: A report by the Office of Technology Assessment (OTA) that presents the analysis of pre-manufacture notices and "reports the results of analyzing those notices for the presence or absence of the information specified by the Toxic Substances Control Act and for other items of physical chemical and toxicity information that are useful for estimating potential health and environmental effects" (p. iii).
Contributing Partner: UNT Libraries Government Documents Department
Environmental Contaminants in Food

Environmental Contaminants in Food

Date: December 1979
Creator: United States. Congress. Office of Technology Assessment.
Description: An assessment by the Office of Technology Assessment (OTA) that is "concerned with chemical and radioactive contaminants that inadvertently find their way into the human food supply" (p. iii).
Contributing Partner: UNT Libraries Government Documents Department
2-Dialkylaminoethyl Ketals of Benzophenone; the Attempted Synthesis of some Heterocyclic Sulfones

2-Dialkylaminoethyl Ketals of Benzophenone; the Attempted Synthesis of some Heterocyclic Sulfones

Date: 1949
Creator: Compton, William David
Description: This thesis describes two experiments: one related to antihistamines, and the other related to antitubercular compounds.
Contributing Partner: UNT Libraries
Temporal and Spatial Comparisons of Ambient Toxicity of the Trinity River in Relationship to an Effluent

Temporal and Spatial Comparisons of Ambient Toxicity of the Trinity River in Relationship to an Effluent

Date: December 1993
Creator: Hall, David B., 1958-
Description: A toxicological study was initiated because of concerns about allegations that the Texas Water Commission that effluent from the Dallas Central Wastewater Treatment Plant, which discharges into the Trinity River, was affecting downstream water quality. Monthly, flow-weighted composite effluent samples were collected. Grab samples were also collected upstream and downstream from the effluent from April 1989 to August 1991. Toxicity tests were conducted on these samples using Ceriodaphnia dubia as the test organism. Samples were collected four times during this study in which rainfall occurred prior to sampling. In every instance, this "first flush" of the watershed during a rising hydrograph was toxic to C. dubia upstream. Analyzing toxicity by season resulted in a statistically significantly lower neonate production in the effluent than in the river samples during the months of June, July, and August. This impact on neonate production was suspected of being caused by organic pesticides which are used for insect control on lawns. The effluent was never acutely toxic to C. dubia. Primarily, toxic occurrences in either the effluent or the river samples were primarily of a chronic nature. Overall, survival of C. dubia was affected more frequently at the upstream site than in the effluent or ...
Contributing Partner: UNT Libraries