Document ID: EPA-HQ-OAR-2002-0051-3450
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2010-09-09T04:00Z

From:
"Higgins, Cortney" <Cortney_Higgins@omb.eop.gov>
 To:
Amy Lamson/RTP/USEPA/US@EPA
 Cc:
Ron Evans/RTP/USEPA/US@EPA, Keith Barnett/RTP/USEPA/US@EPA, "Schwab, Margo" <Margo_Schwab@omb.eop.gov>, Charlotte Bertrand/DC/USEPA/US@EPA
 Date:
08/03/2010 09:15 AM
 Subject:
Speciation Language

Hi,
 
This is the speciation language  -  the attachment shows where it would go in the RICE rule.
 
      "EPA assumes reduction in all species of fine particles have equivalent health benefits, however it is important to point out that there is significant uncertainty surrounding this assumption, and to the extent that this rule largely reflects reductions in only a couple of species of PM precursors, the estimates carry significant degree of uncertainty."
 
 
For the Cement preamble, it would need to be added somewhere around page 272, with specific reference to sulfates.  In addition, similar language is needed for the first paragraph on page 67.
 
 
Regards,
Cortney
 
________________________________________________
Cortney Higgins
Policy Analyst
OMB/OIRA/NRE
202.395.7856
chiggins@omb.eop.gov