The New Source Review Permits Division policy requires a PSD review for facilities proposing greater than 250 tons per year of halogenated organic compounds . Therefore, the threshold limit for halogenated organic compounds is set at 250 tons per year. With the Montreal Protocol and the Clean Air Act Amendment of 1990 phasing out halogenated compounds, we would not expect a company to propose significant amounts of this class of emissions. This column lists the method of control normally encountered with each emission stream. Oxidation includes thermal and catalytic oxidizers.
Adsorption includes rotor concentrators and carbon beds.
Because of the variability of compounds and low concentrations in each emission stream, it is not reasonable to size a control device to minimize emissions of all compounds equally well during all inlet conditions. To optimize the minimizing of emissions, a target compound is used. The three compounds with the highest monthly usage rates are identified. From these three compounds, the compound with the lowest ESL is selected as the target compound. By sizing the control device around a target compound, the control device is more efficient at minimizing emissions of compounds with high usage rates and high potential for potential adverse health effects.