Funding agency: 
U.S. Environmental Protection Agency (EPA)

A research training opportunity is currently available at the U.S. Environmental Protection Agency's (EPA) Office of Research and Development (ORD)/National Exposure Research Laboratory (NERL). The appointment will be served with the Exposure Methods and Measurements Division (EMMD) located in Research Triangle Park, North Carolina.

EMMD provides the science that underlies the measurement of environmental stressors and their interaction with biological systems. This science includes method development, evaluation, and field and laboratory testing. These measurement methods are foundational to the Agency's regulatory programs and stakeholder needs in protecting public health and the environment. The Public Health Chemistry Branch (PHCB) specializes in the collection and analysis of chemical samples from humans and built environments. The branch develops, evaluates, and applies state-of-the-art analytical methods to characterize human exposures and provides forensic and technical support to the Agency.

Due to their unique characteristics, nanomaterials are being incorporated into a wide variety of consumer products and can be emitted from a range of processes. In addition, nanoscale particles (NP) can be generated and released into indoor environments as a result of a number of activities such as 3D printing. Our understanding of human exposure, especially child exposure, to these particles is limited. More specifically, development and demonstration of analytical methodology used to measure the potential release and exposure to NP from these products and processes is critical in better understanding human exposure.

This research project will focus on several examples where new methods are key to understanding of NP release and exposure, including:

  • 3-D printer generated aerosols (characterize particulates and measure potential exposure)
  • Nanomaterials (characterization, release and exposure to nanoparticles-NP from NP-containing consumer products)

Techniques and instrumentation that the research participant may apply to the research will include the following:

  • dynamic light scattering
  • UV-visible spectrophotometry
  • ICP-MS
  • single particle ICP-MS
  • nanoparticle tracking analysis
  • flow field flow fractionation

The research participant may analyze data and report findings at national meetings and in the peer-reviewed literature.

The mentor for this opportunity is Kim Rogers (

August 14, 2019
Funding type: 
Graduate students