» Biological monitoring

Complete Listing of NAWQA’s Study Units and Summary Reports

Reports on the top 52 US water drainages between 1990 and 2001. E-circulars include surface water, ground water, urban effects, and topics such as fish and algae. Read More

National Water Quality Assessment Data Warehouse (NAWQA)

Chemical, biological, and physical water quality data from a study of 42 watershed basins. Read More

Great Lakes Monitoring

This summary will present an overview of results for the annual limnology program for the Great Lakes which began in 1983. The limnology program provides information on key environmental factors that influence the food chain and fish of the Great Lakes. The annual monitoring of the Great Lakes began in 1983 for Lakes Michigan, Huron, and Erie; in 1986 in Lake Ontario; and in 1992 for Lake Superior. The sampling strategy is to collect water and biota samples at specific water depths from a limited number of locations in each lake twice every year. Read More

Breaking Down the Blocks that Build Biosensors

Research and industry are increasingly exploiting the potential of aptamers. As well as their application in research, medical diagnosis and treatment, aptamers are also interesting as a basis for biosensors for use in environmental analysis because their characteristics enable them to identify and bind target molecules as surely as a key fits a lock. In a new book, researchers at the Helmholtz Centre for Environmental Research (UFZ) describe the methods used to obtain aptamers. A newly-approved project aims to develop new nanostructured biosensors to measure harmful substances in water. Read More

Biosensors for Environmental Monitoring Superfund Research Program

This was the first of two seminars on Biosensors for Environmental Monitoring sponsored by the NIEHS Superfund Basic Research Program and the Environmental Protection Agency (EPA) Technology Innovation Program. Dr. Michael Denison and Shirley Gee from the University of California, Davis (UC Davis) presented their work on the development of miniaturized, fast, sensitive bioassay systems for use in environmental research and monitoring at hazardous waste sites. Dr. Ian Kennedy, also from UC Davis, discussed his advances in nanotechnology and the use of MEMs (Micro Electro Mechanical system) fabrication techniques to make a micro-sized instrument for optical detection of trace amounts of chemicals in aqueous solutions. Read More

Biosensors for Environmental Monitoring

National Exposure Research Laboratory in Las Vegas (NERL-LV) is conducting research on biosensors for environmental monitoring applications. This research is designed to address a critical and growing need for real-time and in situ monitoring devices which can be used at Superfund sites and RCRA facilities, as well as for ground water monitoring. Because biosensor technology lends itself to fast, economical and continuous monitoring capabilities, development of these systems to complement classical analytical measurements is expected to result in a substantial cost benefit, especially when sample turnaround time and cost per analysis are important issues. Biosensors are currently being considered for development for detection of environmental pollutants such as phenols, genotoxins, and pesticides such as organophosphates, 2,4-D, etc. Read More

National Exposure Research Laboratory (NERL) Assessment Methods

Chemical, biological, and microbiological methods of environmental pollutants assessment. Read More

National Exposure Research Laboratory's (NERL) Models

The National Exposure Research Laboratory’s (NERL) mission is to conduct research on the extent and nature of exposure of humans and the nation’s ecosystems to environmental pollutants and other stressors. These are some of the models that show potential exposure of humans and ecosystems. Read More

Biosensors for Analytical Monitoring References

Bibliography of references on environmental use of biosensors. Read More

Water Quality and Aquatic Macroinvertebrates

Lesson plans pertaining to the role of macroinvertebrates in determining water quality. Read More


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