Problems connected with the formation of the title pollutants in incin
erators are critically reviewed. Emission limits, environmental impact
s of the combustion processes and process factors affecting flue gas q
uality are presented. Measures reducing PCDD/PCDF formation in inciner
ator flue gases are discussed, and the best available combustion techn
ologies are outlined. The air contamination by these pollutants in the
Czech Republic and the relative role of incinerators compared to othe
r PCDD/PCDF sources are analyzed.