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Carolina to study waste site problems


As part of the nation's Superfund research and clean-up efforts, the National Institute of Environmental Health Sciences, in cooperation with the Environmental Protection Agency, has awarded $16 million to scientists at the University.

The grant will enable the public health and engineering experts to continue work begun with NIEHS support in 1991 for another five years.

"We're trying to understand the human health and environmental risks associated with hazardous waste sites and to devise strategies for cleaning up such sites to minimize public health concerns," said James A. Swenberg, professor of environmental sciences and engineering at the School of Public Health and Superfund Basic Research project director. "We have created an interdisciplinary group of scientists leading eight research projects and five cores supporting studies of the health consequences of exposure to toxic substances. These dedicated people are examining the potential of neutralizing hazardous wastes and developing new strategies for cleaning up Superfund sites."

The program projects are supported by core facilities in chemistry, molecular epidemiology, mathematical modeling, outreach and student training. The chemistry core includes a synthesis laboratory and a mass spectrometry facility. The former provides custom synthesis of metabolic intermediates for dosing experiments, labeled compounds for spiking standards for microanalysis, products for structural verification and specialized reagents. The latter does both routine analysis and methods development using a variety of ionization sources and combining the ionization sources with chromatographic techniques.

The chemistry core also assists in interpreting spectroscopic data and collaborates with the various projects in applying chemical strategies. The molecular epidemiology core provides high-throughput genotyping to examine the effect of DNA repair and metabolism genes on susceptibility to diseases linked to toxic chemicals. The mathematical modeling core will assist all investigators with advanced modeling and statistical analysis.

"Over the past nine years, we've trained about 110 graduate students and 40 postdoctoral fellows to do specialized research that involves interdisciplinary interaction between health science and engineering," Swenberg said. "That's unusual but very much needed."

The nation spends about $2 billion a year on Superfund issues alone, not including money spent on environmental issues by the defense and energy departments, he said.

The University Superfund Basic Research Program, which has always disseminated its research findings to the professional community, now has a formal Community Outreach and Education Program, which serves the general public, school teachers and policymakers. That effort is being directed by Frances Lynn, with Kathleen Gray as the deputy director.

More information is available at the program's Web site: http://www.sph.unc.edu/sfcoep/research

"The site contains lay versions of each of our research projects and has links to EPA Superfund issues and all kinds of information for teachers, students and others," Swenberg said.


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