Pesticide and Nitrate Movement Under Conservation and Conventional Tilled Plots
Carbofuran, alachlor, atrazine, nitrate and bromide (a tracer) were applied to plots with conventional and conservation tillage. During the early part of the growing season the conservation...

Sorption and Transport of Aldicarb Through the Vadose Zone
The literature was reviewed regarding the sorption and transport of a nonionic organic pesticide aldicarb, an extremely toxic and relatively water soluble carbamate insecticide that has...

Trace Elements and Pesticides in Salton Sea Area, California
Concentrations of numerous potentially toxic trace elements and pesticides were determined in water, sediment, and biota from the Salton Sea area in southestern California. Comparison...

Probabilistic Maintenance Opportunities
The Bureau of Reclamation has instituted a number of operation and maintenance oversight activities to ensure that Reclamation and water-user operated projects are operated and maintained...

Ten Top Projects for 1988
The other Outstanding Civil Engineering Achievement nominees make up an impressive collection of projects. They are notable for innovative management techniques, state-of-the-art engineering...

Synthetic Organic Contaminants and Pesticides in Groundwater
For decades, the groundwater of Suffolk County, New York, has been bacteriologically and chemically of superior quality despite the high iron and manganese occasionally encountered in...

Removal of Alachlor From Drinking Water

Rehab Roundup
Four recent rehabilitation projects are described. On an old concrete gravity dam, post-tensioning tendons were added to improve its resistance to sliding. The abandoned Union Station...

Biological Removal of Low Levels of Chlordane
This study investigated the removal of chlordane from a synthetic hazardous waste landfill leachate with chlordane as the only hazardous material. The chlordane concentrations investigated...

True Cost Comparison of Landfilling and Incineration of Hazardous Wastes
An analysis of the 'true' costs of a series of discrete model situations representing hazardous waste management by landfilling and incineration was conducted....

Management Strategies for a Mangrove Estuary
The management plan for Rookery Bay National Estuarine Sanctuary uses three mutually dependent management strategies: developing and implementing a land and water management plan; conducting...

Effect of Irrigated Agriculture on Groundwater

Groundwater Contamination from Agricultural Chemicals: North Fork, Suffolk County

Rapid Detection of Genotoxic Chemicals in the Environment

Distribution of Toxic Substances in Rivers
A statistical technique was used to determine if hydrophobic organic substances have vertically a uniform distribution in a river. At a river polluted with chlorinated organic pesticides,...

Simulation of the Migration and Fate of Diazinon

Removal of Dieldrin from Water by Activated Carbon

Soil Adsorption of Chlorinated Organics

Pesticide Transport and Bioconcentration Model
A pesticide transport and bioconcentration model has been developed and applied to Coralville Reservoir, Iowa, for the insecticide dieldrin. Two spatial configurations, a two compartment...

Chemical Risk Migration and Risk Assessment Methodology

 

 

 

 

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