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EPA/Consulting Firm Presentation on PCDD/PCDFs at ICCR meeting

  A colleague, Alex Johnson, who sits on EPA's Industrial Combustion 
  Coordinated Rulemaking committee representing citizen 
  environmental groups, recently mentioned
  a presentation  made by EPA and EER, an environmental 
  consulting firm, at the September meeting of the ICCR 
  committee concerning chlorinated dibenzo-dioxin/furan emissions
  from combustion sources.    
  For the uninitiated, ICCR is a process to examine the emissions
  from multiple types of industrial combustion...industrial incinerators,
  wood waste burning, process heaters and others...in order to 
  develop toxic air pollution emission standards under Section 
  112 and 129 of the Clean Air Act.
  The presentation is very informative briefing on the processes by which
  chlorinated dibenzo-dioxins and furans are formed, detected,
  controlled and monitored in combustion systems.
  for a PDF file on the presentation.   You will need the 
  version 3 of the Adobe PDF reader.
  The most surprising aspects of the presentation is the 
  ability of chlorine found in ambient combustion air to 
  form PCDD/PCDFs in combustion systems under 
  conditions optimum for PCDD/PCDF formation,
  which do not necessarily need high chlorine in what
  is being burned.
  Someone asked on DIOXIN-L  list about PCDD/PCDF emissions
  from landfills....  better to worry about traditional 
  sources (waste incinerators, waste and non-waste burning
  cement kilns, medwaste incinerators), potential newly identified
  sources (steel industry sources), and some unusual sources
  (junkyards/scrap operations which burn waste wire
  or transformer hulks  for copper recovery).
  Alex J. Sagady & Associates        Email:  asagady@sojourn.com
  Environmental Consulting and Database Systems
  PO Box 39  East Lansing, MI  48826-0039  
  (517) 332-6971 (voice); (517) 332-8987 (fax)