The US EPA Office of Air Quality Planning and Standards (OAQPS) posted a status report of current activities:
OAQPS Measurement and Monitoring Projects (pdf, 15pp, 56kB)
Activities include new and revised:
- Test methods, including instrumental Methods 3A, 6C, 7E, 10, and 20;
- Performance specifications and quality assurance procedures for Continuous Emission Monitoring Systems; and
- Tools for improved monitoring and testing.