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Nitrogen Oxides (NOx): Why and How They Are Controlled; EPA-456/F-99-006R 
Lead
Robert J. Blaszczak (MD: E143-03)
Information Transfer Group (ITG)
Information Transfer and Program Integration Division (ITPID)
Office of Air Quality Planning and Standards (OAQPS)
U.S. EPA, RTP, NC 27711
Telephone: (919) 541-5432
FAX: (919) 541-0247
E-Mail: blaszczak.bob@epamail.epa.gov
Abstract
This document provides information on pollution prevention and add-on technologies that reduce or control NOx emissions to the atmosphere, with special emphasis on external combustion processes (e.g, boilers and process heaters) and internal combustion processes (e.g., internal combustion engines and turbines). Readers of this document will understand:
- why is important to control NOx
- the basic principles for these prevention and control technologies
- how these technologies operate
- where these technologies can be used
- how much they cost
- how to choose among the different systems