The document discusses research gaps and needs for the Co-ordination of Research on Particulate Matter (CCRP) program. It outlines the structure of CCRP, including high-level groups focused on emissions, impacts and adaptation, socio-economic analyses, and technologies. It then discusses specific research areas for trans-boundary air pollution, including key pollutants, emissions inventories, measurement and monitoring, pollutant transport modeling, environmental objectives, and policy options.

1. Frank McGovern EPA Research gaps and needs a brief overview

2. Structure of CCRP High-level Group Co-ordination, communications and policy linkage GHG emissions sinks and mitigation Impacts and Adaptation Socio-economic analyses and Technologies Trans-boundary Air Pollution Data management systems Environmental observation systems Joint research areas Steering Groups