Air Quality
ERG supports federal, regional, state, local, and tribal government agencies in their efforts to ensure that all citizens have safe, healthy air to breathe. We identify and characterize important point, nonpoint, mobile, and natural air pollution sources; develop emission factors and source activity information needed for inventories; quantify source and ambient pollution levels through direct measurement and interpretation of the results; develop viable emission control options; and prepare regulations, permits, and other materials that help effect real improvements in air quality. ERG’s nationally recognized scientists apply this expertise to further the nation’s efforts to address new challenges in areas such as global climate change and homeland security.
Air Emission Source Characterization
- Process mapping and characterization
- Emission source delineation and characterization
- Activity data characterization
- Industrial category profiles
- Process and emission controls analysis
- Pollution prevention analyses
Emission Estimation and Inventory Development
- Inventory development for all emission sectors
- Criteria and noncriteria pollutants, air toxics, and greenhouse gases
- Emission factor development
- Spatial (geographic information systems) and temporal allocation analyses
- Emission projections
Control Technology Evaluation
- Pollutant removal performance evaluations
- Co-control assessments
- Secondary environmental impacts evaluations
- Cost and economic impact analyses
Regulatory and Compliance Support
- New source performance standards (NSPS) and national emission standards for hazardous air pollutants (NESHAP)/maximum achievable control technology development (MACT)
- Regulatory policy analysis
- Rule implementation assistance
- Air permit review and preparation
- Title V, new source review (NSR)/prevention of significant deterioration (PSD), and state permits
Air Quality Analyses
- Nonattainment area analyses
- Regional haze assessments
- Best available retrofit technology (BART) source control evaluations
- Control strategy development
- Source emission and ambient data correlations
- Emission modeling and air dispersion analyses
Climate Change Assessments
- Voluntary greenhouse gas (GHG) reduction programs
- GHG inventories and carbon footprints
- GHG abatement strategies
- Impacts of energy efficiency and renewable energy programs
Source and Ambient Pollutants Measurement
- Ambient air monitoring
- Source emission testing
- Continuous emission measurement
- Methods development and analytical chemistry
Data Management Solutions
- Emission estimation models and tools
- Statistical and predictive analysis tools
- Emission inventory data management systems
