The majority of coal-fired Part 75 utilities in the United States are now using real time continuous Mercury Vapor monitors. ThermoFisher Scientific has sold more than 450 Mercury CEMS and the majority are installed and operational. These CEM Systems are true real-time monitors designed to comply with the stringent data availability criteria required by Part 75. In defiance of the D.C. Court’s vacature of the Clear Air Mercury Rule (CAMR), many states are moving forward with the requirement of continuous Mercury emissions monitoring systems. Since 1993, all thermal power plants subject to the Part 75 Acid Rain Regulations have been required to continuous monitor for the regulated emissions, SO2, NOx, and CO2. Continuous monitoring of Mercury emissions is also expected to be the most accepted monitoring method for obtaining reliable real-time Mercury emissions. The test results at all Mercury emissions evaluation sites have shown that Mercury concentration variability far exceeds that of other regulated criteria pollutants. Multiple types of “routine operational events” occur during normal boiler operation and often trigger dramatic changes in the concentrations of both Elemental and Oxidized Mercury. Click Here For Complete Presentation Text
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