Chemicals in the Environment: An Approach to Estimate Magnitude of Risk
This paper provides an overview of application of toxicological procedures to estimate health risks posed by hazardous materials in the environment. Emphasis will be placed on information...

Danger: Natural System Modeled by Computer
Computer (mathematical) models are written to simulate such natural systems as those leading to acid rain, flooding, or toxic waste migration from disposal sites into groundwater. In some...

Assessing the Effects of Water Contamination
The threats to potable water are examined. An assessment of human ill effects of contaminated water requires a knowledge of the quality of water throughout the world and a corresponding...

Nature of Pollutants in Oil Shale and Coal Conversion Wastewaters

Simulation of Metal Fate and Transport in Rivers with MEXAMS

Fire Combustion Toxicity Tests—Good Idea or Not?
The smoke from burning synthetic materials in buildings is highly toxic and is a key cause of deaths in building fires. If fire codes regulate on the basis of the toxicity of smoke of...

Toxic Contaminant Uptake in Dredged Sediment Marshes
Dredged sediments from the proposed enlargement of the Lower Mississippi River from Venice, Louisiana to the Gulf of Mexico would be primarily utilized to create up to 28,000 hectares...

RCRA EP Toxicity Test Applied to Dredged Material
A set of 25 Great Lakes harbor sediment samples were subjected to bulk sediment analysis and the EP Toxicity Test. Based on the results of this pilot study, there appears to be little,...

Safe Landfilling of Contaminated Dredging Spoil
This paper deals with the assessment of the expected emissions of toxic substances from highly contaminated harbor dredged material. The material in question arises from the canal between...

Development of Response Plans for Toxic Spills
A plan is proposed for managing the response to a toxic spill into a river system and the minimization of its effects on water utilities, industry and the environment. As technical aids...

Modeling Effects of Toxicants on Aquatic Systems
Potential effects of chemicals on biomass production in aquatic systems are extrapolated from laboratory toxicological assays. The extrapolation requires that the effect of acute toxicity...

Development of Toxic Screening Models for Surface Water Supplies
A major interest of the U. S. Environmental Protection Agency has been the assessment or ranking of vulnerable water utilities. Until recently, no techniques have been available that quantitatively...

Arresting a Toxic Plume
At an abandoned gravel pit in New Hampshire turned into a dump site for hazardous liquid chemical wastes (as well as drummed solid waste), engineers had to race against the clock to stem...

Screening for Organic Toxicants in Aquatic Environments

Light Metal Cation Inhibition in Anaerobic Digestion

Adsorption of Arsenic and Selenium on Activated Alumina

Passive Treatment of Sulfide Stockpile Runoff

Evaluation of the Effects of Landfill Leachate on Brook Trout by Bioassay

Toxic Torts

Role of Risk Analysis in Health Policy

 

 

 

 

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