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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear Friends<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>From <a href="http://www.epa.gov/lawsregs/documents/regagendabook-spring10.pdf">http://www.epa.gov/lawsregs/documents/regagendabook-spring10.pdf</a> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Some changes to consider:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>588 SAN No. 5155 Measurement of PM2.5 and PM10 Emissions by Dilution Sampling 2060–AO50<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>“</span><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Small Entities Affected: </span></b><span style='font-size:9.0pt;font-family:"Melior","serif"'>No”<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Melior","serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Melior","serif"'>Really? Well at least we are on the right track. Condensing particles out of the stack gas is an important part of assessing the emissions from poor combustion. <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Melior","serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>589 SAN No. 5237 Revisions to Test Method for Determining Stack Gas Velocity Taking Into Account Velocity Decay Near the Stack Walls 2060-AP-08<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>This relates to including non-round chimneys and calculating the volume of gases passing through. Combustion analysers have long done this so nothing to see here.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>EPA Test Method 5 (used to condensing aerosol particles) is being updated with a math correction. (see p.43/178 of above link).<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>H2S (the main issue with domestic stoves) still does not get any mention as everyone concentrates on SO2. There is in my experience a consistent belief that if a stove does not emit SO2, the S somehow disappears. Tip of the hat to Prof Annegarn (U of Johannesburg) Geography post-grads for highlighting the importance of domestic fire coal-sourced H2S (the ‘stink’ of coal) which is the alternative. Stoves with poor combustion definitely emit lower SO2, but obviously it has to be something else if it is not SO2, and the answer is H2S which is really toxic.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>Hydrogen Fluoride (HF) can be emitted by burning coal on any scale. Glad to see it mentioned on p. 79/178.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>There is no mention of domestic coal combustion this year.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>Regards<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>Crispin<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div></body></html>