Titlebook: QSAR in Environmental Toxicology; Proceedings of the W Klaus L. E. Kaiser Conference proceedings 1984 D. Reidel Publishing Company, Dordrec

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Predicting the Environmental Fate of Toxic Contaminants in Large Lakes: Data Requirements for Matheyzed in terms of data needs. Modellers need data from research projects on pathways as well as concentration data. Are all these data needed and what are the alternatives? Examples are taken from research on the Great Lakes of North America, mainly Lake Ontario.

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Measured

yohimbine

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Qsar Studies On Chlorophenols, Chlorobenzenes and Para-Substituted Phenols,on lethality, serum sorbitol dehydrogenase activity, and 96-hr lethal concentration are investigated in terms of quantitative structure-activity correlations (QSARs). The effects of CP’s and CB’s are primarily related to the chemicals’ octanol/water partition coefficients (log P). The slopes of the

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Quantitative Structure-Activity Relationships in Ecotoxicology: Possibilities and Limits,ses and limitations of structure-activitiy correlations for important environmental parameters, such as bioconcentration factors, sediment sorption and toxic effects of chemicals, are shown. Quantitative relationships of these parameters with molecular connectivity indices, parachors, octanol/water

Fibrillation

Immortal

,Comparative Structure—Toxicity Relationships between Acute and Chronic Effects to Aquatic Organismsthead minnows (..) are presented and used to estimate their chronic toxicities. In conjunction with published toxicity data, structure-toxicity relationships are shown of acute (LC50) toxicity and chronic (MATC) toxicity endpoints with structure coefficients (SC’s) for chlorophenols and chlorobenzen

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cognizant

Validation of Fish Toxicity QSARs for Certain Non-Reactive Non-Electrolyte Organic Compounds,s were based upon the log P parameter and the QSAR equation of Konemann. The required log P values were obtained from experimental measurements, or else, calculated directly from chemical structures using the CLOGP computer program. The analysis was performed on a total of 37 chemicals and 49 fish L