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<DIV><FONT face=Arial color=#0000ff size=2>If you are looking for the Global
Warming Potential (GWP) of Freon R22 (aka HCFC 22, or CHClF2), you can find it
in chapter 2 of the IPCC Fourth Assessment Report, Working Group I Report "The
Physical Science Basis", available at </FONT><A
href="http://www.ipcc.ch/ipccreports/ar4-wg1.htm"><FONT face=Arial color=#0000ff
size=2>http://www.ipcc.ch/ipccreports/ar4-wg1.htm</FONT></A><BR><BR><FONT
face=Arial color=#0000ff size=2>FYI, the IPCC Fourth Assessment Report gives the
100 year GWP as 1810, vs. 1500 that was published in the IPCC Second Assessment
Report (1996).</FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2>If you are looking for an emissions
factor, several approaches are available, including mass balance (e.g., track
purchases used for make up charging), measurement of leaks, or make assumptions
about leak rates. Choice of approach depends on what you are using the results
for, how much accuracy is desired, and available resources.<BR></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2>Cheers ... Duncan<BR><BR></DIV>
<DIV align=left>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt" align=left><FONT
size=2><STRONG><SPAN lang=EN-US
style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt">Duncan
Noble</SPAN></STRONG></FONT></P>
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size=2><STRONG><SPAN lang=EN-US
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Canada</SPAN></FONT></P>
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<DIV><BR><BR><FONT color=#000000>-----Original Message-----<BR>From:
discuss-bounces@ghgnetwork.org [</FONT></FONT><A
href="mailto:discuss-bounces@ghgnetwork.org"><FONT face=Arial color=#000000
size=2>mailto:discuss-bounces@ghgnetwork.org</FONT></A><FONT face=Arial size=2>]
On Behalf Of Alex Hetherington<BR>Sent: February 21, 2008 2:17 PM<BR>To:
discuss@ghgnetwork.org<BR>Subject: [GHG Network] Emissions factor for Freon
R22<BR><BR>Dear All<BR><BR>I am wondering if anyone has ever used a verified
emissions factor for Freon R22 (a non-Kyoto GHG) and, if so, could they say what
it is.<BR><BR>With best
regards<BR>Alex<BR>_______________________________________________<BR>Greenhouse
Gas Inventory Experts Network www.ghgnetwork.org<BR><BR>To post
message:<BR>Discuss mailing list<BR>Discuss@ghgnetwork.org<BR><BR>To
unsubscribe:<BR></FONT><A
href="http://milkyway.forumone.com/mailman/listinfo/discuss"><FONT face=Arial
color=#000000
size=2>http://milkyway.forumone.com/mailman/listinfo/discuss</FONT></A><BR><BR><BR><BR></DIV></BODY></HTML>