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National Institute of Environmental Health Sciences

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Your Environment. Your Health.

Final Progress Reports: Louisiana State University: Materials Core

Superfund Research Program

Materials Core

Project Leader: Lavrent Khachatryan
Co-Investigator: Slawomir Lomnicki
Grant Number: P42ES013648
Funding Period: 2011-2025
View this project in the NIH Research Portfolio Online Reporting Tools (RePORT)

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Final Progress Reports

Year:   2017 

The main objective of the Materials Core is to provide particle systems containing environmentally persistent free radicals (EPFRs) and that mimic those emitted from the thermal treatment of Superfund hazardous wastes. These combustion samples are then used by all scientific projects to understand their chemical and biological effects. The Core also provides analytical and technical support for the high temperature and catalytic studies of formation of pollutants in thermal systems. The Materials Core resources were fully utilized by the projects and the Core has provided all the particulate matter (PM) samples as requested by the projects. Core personnel have also developed new sampling techniques (i.e., phyto-sampling). This technique was successfully employed in the Memphis area and led to a significant finding – EPFR concentration is not directly proportional to PM concentration.

The Core developed a new method for nondestructive recovery of PM from high volume air samplers. Such "real-world" samples will allow for studies of EPFR's biological effects and detailed physical/chemical characterization. The Materials Core has continued to develop new methods to synthesize increasingly complex, realistic particles, yet maintain control over EPFR concentration, metal, and organic content for mechanistic studies by all projects in the LSU Superfund Research Center.

 

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