The US EPA issued a direct final rule to add two methods for measuring mercury (Hg) emissions at coal-fired power plants. The direct final rule also includes several amendments related to mercury monitoring provisions at coal-fired power plants. The rule would add Methods 30A and 30B to the list of approved techniques for measuring mercury emissions under Clean Air Mercury Rule. For more information see:
Direct Final Rule (pdf, 133pp., 533kB);- Parallel Proposal (pdf, 11pp., 32kB); and
- Fact Sheet (pdf, 2pp., 75kB).