• Proposal: 06/24/2019


  • Amount: up to $800,000
  • Duration: up to 3 years


This call includes an Early Career opportunity as well as a standard application option.

The U.S. Environmental Protection Agency (EPA), as part of its Science to Achieve Results (STAR) program, is seeking applications proposing research to improve air quality models relevant to ozone, particulate matter (PM), regional haze, air toxics, and emerging pollutants. Specifically, this Request for Applications (RFA) is seeking research on the development of the component of an air quality model that represents the relevant atmospheric chemical reactions, which is known in this field of modeling as “the chemical mechanism.” The RFA seeks research on:

  1. Development of data, methods, and software tools for generating explicit chemical mechanisms that a) have a coherent and integrated treatment of gas, aerosol, aqueous, and heterogenous chemistry, b) can be easily updated to reflect evolving kinetic, mechanistic, and theoretical knowledge and understanding, and c) are applicable to a wide range of atmospheric concentration regimes and environmental conditions;
  2. Development and evaluation of algorithms, numerical techniques and software tools to reduce (i.e., simplify) detailed, integrated chemical mechanisms into application-specific condensed mechanisms appropriate for use in global and regional air quality models; and
  3. Applications of new condensed mechanisms generated for broad applications or for specific conditions in global and regional air quality models to investigate air quality research topics relevant to air quality management in the United States.

The focus of this solicitation is on the development of chemical mechanisms relevant over multiple regimes (a wide range of concentrations, oxidant ratios, and temperatures, and multiple phases) and spatiotemporal scales within a framework that can generate mechanisms for current air quality assessments and have the flexibility to generate updated mechanisms as understanding of atmospheric chemistry evolves and new concerns emerge.

Eligibility & Submission Requirements

To be eligible for the Early Career application option, PIs must:

  1. Hold a doctoral degree in a field related to the research being solicited by the closing date of the RFA;
  2. Be untenured at the closing date of the RFA; and
  3. By the award date, be employed in a tenure-track position (or tenure-track-equivalent position) as an assistant professor (or equivalent title) at an institution in the U.S.

Contact Information

Agency Contacts:

Technical Contact: Serena Chung; phone: 202-564-6069; email:

Eligibility Contact: Ron Josephson; phone: 202-564-7823; email:

Electronic Submissions Contact: Debra M. Jones; phone: 202-564-7839; email: